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Study on the aided PC-ASCL decoding algorithm based on optimized parity check codes 认领 引用
1
作者 Jianguo YUAN Deyi YANG +1 位作者 Ziliang ZHU Jinneng XIANG 《Optoelectronics Letters》 EI 2026年第2期87-91,共5页
Aiming at the poor performance of the parity check(PC) aided adaptive successive cancellation list(PC-ASCL) decoding algorithm because the PC code in the polar code can only verify odd errors, an optimized parity chec... Aiming at the poor performance of the parity check(PC) aided adaptive successive cancellation list(PC-ASCL) decoding algorithm because the PC code in the polar code can only verify odd errors, an optimized parity check(OPC) code which can verify all odd errors as well as the half even errors is proposed. The OPC code is used to improve the PC-ASCL decoding algorithm, thus an OPC aided ASCL(OPC-ASCL) decoding algorithm is proposed. In the coding stage, the algorithm divides the information sequence into multiple segments, and places an OPC code at the end of each segment to verify the current information sequence, and places a cyclic redundancy check code at the end of the entire information sequence to verify the entire information sequence. In the decoding stage, the algorithm uses the OPC-ASCL decoder to decode. Simulation results show that compared to the PC-ASCL decoding algorithm, the OPC-ASCL decoding algorithm can reduce the complexity and obtain the certain performance gain. 展开更多
关键词 pc ascl decoding pc code adaptive successive cancellation list pc ascl divides information sequence multip parity check polar code optimized parity check coding stage
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Partial-measurement-enhanced high-dimensional superdense coding in amplitude damping channel with memory 认领 引用
2
作者 Xing Xiao Zhipeng Yang +2 位作者 Yan-Ling Li Fangqing Tang Tian-Xiang Lu 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第4期109-120,共12页
We study the performance of high-dimensional superdense coding(HD-SDC)over an amplitude damping(AD)channel with memory and propose a protocol that leverages partial measurement and its reversal to enhance the channel ... We study the performance of high-dimensional superdense coding(HD-SDC)over an amplitude damping(AD)channel with memory and propose a protocol that leverages partial measurement and its reversal to enhance the channel capacity.By considering a two-qutrit system,we model the memory AD noise using a convex mixture of memoryless and perfectly memory AD channels.We demonstrate that the memory effect alone can mitigate the decay of the SDC capacity under noise.More significantly,we show that the application of partial measurement before the channel and its reversal after the channel can not only recover the capacity degraded by noise but,for certain non-maximally entangled initial states,even amplify it beyond the initial capacity.This amplification effect is governed by three key factors:the ground-state probability in the initial entangled state,the memory strength,and the partial measurement strength.Our results provide a practical strategy for enhancing quantum communication protocols in realistic noisy environments and highlight the synergistic benefits of memory noise and measurement-based control. 展开更多
关键词 high-dimensional systems superdense coding memory noise partial measurement
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Quantum toric code decoding method based on syndrome-preliminary error fusion module and ResNet architecture 认领 引用
3
作者 Nai-Hua Ji Ping-Li Song +2 位作者 Wei Wang Hui-Qian Sun Hong-Yang Ma 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第6期649-659,共11页
Quantum error correction technology is based on the principle of redundant encoding,encoding logical quantum information into multiple physical qubits to provide important support for the stable operation of quantum c... Quantum error correction technology is based on the principle of redundant encoding,encoding logical quantum information into multiple physical qubits to provide important support for the stable operation of quantum computers.To address the issues of low decoding accuracy and limited feature extraction in quantum error correction,this paper proposes a toric code decoder based on a syndrome-preliminary error fusion module(SPEFM)and a ResNet architecture.This decoder takes full advantage of the correlations between X and Z errors.In the SPEFM,the syndrome and preliminary error predictions are deeply fused,while a unidirectional Swin transformer architecture is incorporated to extract global error features from the syndrome data,signiffiificantly improving both decoding accuracy and computational efffiificiency.In addition,this paper further extracts local error features from the fused features using the deep residual structure of ResNet,enhancing the decoder's ability to capture quantum error patterns.Experimental results show that the decoder is applicable to different code distances(d=4,6,8,10)under the depolarizing noise model.Its bit error rate is lower than that of the minimum weight perfect matching(MWPM)algorithm,and its logical error rate is lower than both the MWPM algorithm and the ResNet18 decoder.Furthermore,the decoding threshold is increased to 0.163,representing a 3.82%improvement over the MWPM algorithm threshold of 0.157. 展开更多
关键词 quantum error correction toric code ResNet Swin transformer
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The gap between principle and practice of lossy image coding 认领 引用
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作者 Haotian Zhang Dong Liu 《Journal of University of Science and Technology of China》 CAS CSCD 北大核心 2026年第1期1-12,I0001,共12页
Lossy image coding is the art of computing that is principally bounded by the image’s rate-distortion function.This bound,though never accurately characterized,has been approached practically via deep learning techno... Lossy image coding is the art of computing that is principally bounded by the image’s rate-distortion function.This bound,though never accurately characterized,has been approached practically via deep learning technologies in recent years.Indeed,learned image coding schemes allow direct optimization of the joint rate-distortion cost,thereby outperforming the handcrafted image coding schemes by a large margin.Still,it is observed that there is room for further improvement in the rate-distortion performance of learned image coding.In this article,we identify the gap between the ideal rate-distortion function forecasted by Shannon’s information theory and the empirical rate-distortion function achieved by the state-of-the-art learned image coding schemes,revealing that the gap is incurred by five different effects:modeling effect,approximation effect,amortization effect,digitization effect,and asymptotic effect.We design simulations and experiments to quantitatively evaluate the last three effects,which demonstrates the high potential of future lossy image coding technologies. 展开更多
关键词 information theory learned image coding lossy image coding rate-distortion function
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基于Vibe Coding的计算机程序设计课程改革 认领 引用
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作者 许玉龙 朱红磊 宋婷 《数字通信世界》 2026年第5期241-243,共3页
人工智能融入软件开发,传统计算机程序设计课程难以适配新时代人才培养需求。Vibe Coding以氛围、心流体验为基础,强调人机协同、思维与实践融合。本文阐释其内涵价值,提出改革策略与保障措施,以提升学生多种能力,培育适配时代的应用型... 人工智能融入软件开发,传统计算机程序设计课程难以适配新时代人才培养需求。Vibe Coding以氛围、心流体验为基础,强调人机协同、思维与实践融合。本文阐释其内涵价值,提出改革策略与保障措施,以提升学生多种能力,培育适配时代的应用型人才。 展开更多
关键词 Vibe Coding 心流开发 计算机程序设计 课程改革 计算思维
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Vibe Coding背景下高职程序设计课程价值重审与教学重构 认领 引用
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作者 周邵锦 《安徽电子信息职业技术学院学报》 2026年第1期80-86,共7页
生成式人工智能催生的“Vibe Coding”范式正深刻改变软件开发流程,对高职程序设计课程带来严峻的挑战。本研究以Python课程为例,提出程序设计课程须秉持守正与创新的辩证教育观:在编程门槛降低的表象下,坚守计算思维、算法素养与工匠... 生成式人工智能催生的“Vibe Coding”范式正深刻改变软件开发流程,对高职程序设计课程带来严峻的挑战。本研究以Python课程为例,提出程序设计课程须秉持守正与创新的辩证教育观:在编程门槛降低的表象下,坚守计算思维、算法素养与工匠精神这一育人内核,同时主动适应人机协同教学新生态,构建“基础层、模块层、应用层”三层内容体系,重塑“场景导入—意图解构—协同生成—理解优化—迁移应用”教学流程。实践表明,该教学重构有效降低了学生的认知负荷,显著提升了学生的代码鉴伪与系统构建能力,为智能时代高素质技术技能人才的培养提供了可操作的实践路径。 展开更多
关键词 Vibe Coding 意图驱动编程 高职程序设计 人机协同 教学重构 高阶全栈素养
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Two Bit-Serial Architectures for Check Node Update in Min-Sum Decoding of LDPC Codes 认领 引用
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作者 Hu Qing He Xuan +2 位作者 Luo Lisha Cai Kui Tang Xiaohu 《China Communications》 SCIE EI CSCD 2026年第3期142-150,共9页
Implementing check node(CN)update based on the minimum value(MV)and second MV of incoming message magnitudes is crucial for Min-Sum Algorithms(MSAs).In the category of bit-serial implementations,existing schemes suffe... Implementing check node(CN)update based on the minimum value(MV)and second MV of incoming message magnitudes is crucial for Min-Sum Algorithms(MSAs).In the category of bit-serial implementations,existing schemes suffer from decoding performance degradation,large hardware areas,and/or long latency.In this paper,we propose two efficient CN update functions based on the MV and an approximate second MV,and design bit-serial architectures to implement them.Simulation results show that our functions exhibit the minimum decoding performance degradation compared to the existing functions using approximate second MVs.Moreover,the applicationspecific integrated circuits(ASIC)implementation results demonstrate the advantages of our architectures in terms of area,latency,etc. 展开更多
关键词 bit-serial check node update hardware implementation LDPC code min-sum algorithm
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Coding-based distributed filtering for cyber–physical systems under denial of service attacks 认领 引用
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作者 Shuang Feng Damián Marelli +2 位作者 Chen Wang Minyue Fu Tianju Sui 《Journal of Automation and Intelligence》 EI CSCD 2026年第1期13-23,共11页
This article investigates the distributed recursive filtering problem for discrete-time stochastic cyber–physical systems.A particular feature of our work is that we consider systems in which the state is constrained... This article investigates the distributed recursive filtering problem for discrete-time stochastic cyber–physical systems.A particular feature of our work is that we consider systems in which the state is constrained by saturation.Measurements are transmitted to nodes of a sensor network over unreliable wireless channels.We propose a linear coding mechanism,together with a distributed method for obtaining a state estimate at each node.These designs aim to minimize the state estimation error covariance.In addition,we derive a bound on this covariance,and accommodate the design parameters to minimize this bound.The resulting design depends on the packet loss probabilities of the wireless channels.This permits applying the proposed scheme to systems in which communications suffer from denial-of-service attacks,as such attacks typically affect those probabilities.Finally,we present a numerical example illustrating this application. 展开更多
关键词 Cyber–physical system Sensor network Denial-of-service attack Linear coding State saturation
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Multi-Attempt List Decoding of Polar Codes 认领 引用
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作者 Yuan Peihong Chen Zhe +1 位作者 Wu Yongpeng Gao Yue 《China Communications》 SCIE EI CSCD 2026年第4期27-36,共10页
In this work,we propose a multi-attempt successive cancellation list(MA-SCL)decoder for polar codes that achieves identical error-correction performance to standard SCL decoding while reducing average complexity.Unlik... In this work,we propose a multi-attempt successive cancellation list(MA-SCL)decoder for polar codes that achieves identical error-correction performance to standard SCL decoding while reducing average complexity.Unlike CRC-aided SCL,the proposed MA-SCL progressively restarts decoding with increasing list sizes and reuses information from previous attempts.This design eliminates the need for outer CRC codes.The decoder features dynamic searchspace pruning and an early stopping criterion based on path metrics.Simulations show MA-SCL matches SCL performance with lower average complexity,particularly for short polar-like codes with reed-muller(RM)rate profiles and dynamic frozen constraints.Compared to existing adaptive decoders,MA-SCL offers implementation advantages by eliminating the need for stack-/heap management while providing relatively stable latency bounds(1×to|Λ|×SCL latency). 展开更多
关键词 complexity-adaptive decoding list decoding polar coding
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走向Vibe Coding:QuickForm的本地部署和功能升级 认领 引用
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作者 陈恩慈 谢作如 《中国信息技术教育》 2026年第9期89-91,共3页
在数字化教育快速发展的今天,教师如何安全、便捷地掌控教学数据工具并实现人工智能赋能,已成为推动精准教学的关键。本文以QuickForm数据收集平台为例,探讨其本地部署的创新优势与功能升级路径。QuickForm教师版通过内置Python环境与... 在数字化教育快速发展的今天,教师如何安全、便捷地掌控教学数据工具并实现人工智能赋能,已成为推动精准教学的关键。本文以QuickForm数据收集平台为例,探讨其本地部署的创新优势与功能升级路径。QuickForm教师版通过内置Python环境与可视化启动界面,实现了“一键启动、免安装”的极简体验,显著降低了技术门槛。同时,本文结合Vibe Coding理念,阐述了教师如何从单纯的技术使用者转变为技术驾驭者,以期为人工智能赋能教学提供一条切实可行的实践路径。 展开更多
关键词 AI赋能教学 QuickForm Vibe Coding
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Design of a compact wide-field-of-view infrared imager based on wavefront coding 认领 引用
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作者 Chonghui Zhu Jiaqian Yu Jingang Cui 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第2期383-388,共6页
Compact size,high brightness,and wide field of view(FOV)are key requirements for long-wave infrared imagers used in military surveillance or night navigation.However,to meet the imaging requirements of high resolution... Compact size,high brightness,and wide field of view(FOV)are key requirements for long-wave infrared imagers used in military surveillance or night navigation.However,to meet the imaging requirements of high resolution and wide FOV,infrared optical systems often adopt complex optical lens groups,which will increase the size and weight of the optical system.In this paper,a strategy based on wavefront coding(WFC)is proposed to design a compact wide-FOV infrared imager.A cubic phase mask is inserted into the pupil plane of the infrared imager to correct the aberration.The simulated results show that,the WFC infrared imager has good imaging quality in a wide FOV of±16°.In addition,the WFC infrared imager achieves compactness with its 40 mm×40 mm×40 mm size.A fast focal ratio of 1 combined with an entrance pupil diameter of 25 mm ensures brightness.This work is of significance for designing a compact wide-FOV infrared imager. 展开更多
关键词 optical design infrared imager wavefront coding
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Adaptive Coding and Modulation Using Enhanced Turbo Codes for Meteor Burst Communication 认领 引用
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作者 Ding Mengchuan Li Zhiyong +1 位作者 Wang Wei Li Xuekun 《China Communications》 SCIE EI CSCD 2026年第5期1-14,共14页
Meteor burst channels(MBC)exhibit significant randomness and non-stationarity,limiting the effectiveness of traditional fixed-rate transmission strategies.This paper proposes an adaptive coding and modulation(ACM)sche... Meteor burst channels(MBC)exhibit significant randomness and non-stationarity,limiting the effectiveness of traditional fixed-rate transmission strategies.This paper proposes an adaptive coding and modulation(ACM)scheme based on real-time channel state perception using enhanced Turbo codes.By leveraging the interleaving structure of Turbo codes to mitigate channel fading and incorporating multi-rate adaptation,the scheme dynamically adjusts symbol rate,modulation,and coding methods to improve spectral efficiency.Meanwhile,a joint evaluation mechanism integrating physical-layer signal to noise ratio(SNR)estimation and media access control(MAC)-layer frame error rate(FER)statistics is introduced to achieve dynamic optimization of switching thresholds in multipath channels.Simulation and experimental results demonstrate that the proposed scheme significantly enhances system adaptability to MBC,and increases data transmission success rates,offering a more efficient and reliable solution for MBC systems. 展开更多
关键词 ACM enhanced turbo codes MAC-layer meteor burst channels
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Vibe Coding 认领 引用
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作者 刘云浩 《计算》 CAS 2026年第6期5-5,共1页
135年前,教皇利奥第十三(Pope LeoⅩⅢ)发布《新事》(Rerum Novarum),对工业革命发出宣言;上个月,利奥第十四(Pope LeoⅩⅣ)发布《伟大的人类》(Magnifica Humanitas),对人工智能发展做出回应。会上,Anthropic公司联合创始人Chris Olah... 135年前,教皇利奥第十三(Pope LeoⅩⅢ)发布《新事》(Rerum Novarum),对工业革命发出宣言;上个月,利奥第十四(Pope LeoⅩⅣ)发布《伟大的人类》(Magnifica Humanitas),对人工智能发展做出回应。会上,Anthropic公司联合创始人Chris Olah呼吁全球推动AI向好的方向发展。一边是延续千年的宗教信仰,一边是方兴未艾的前沿科技,二者的碰撞成了这个时代最意味深长的注脚。 展开更多
关键词 Pope LeoⅩⅢ Vibe Coding
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哪家“龙虾套餐”最适合你? 国内主流Coding Plan套餐详解 认领 引用
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作者 宋伟 《微型计算机》 2026年第11期130-134,共5页
最近,OpenClaw出圈了。从互联网大厂到创业公司,从技术社区到政策文件,几乎所有人都在讨论这只“龙虾”。对于习惯了按需付费API调用的开发者而言,尽管OpenClaw的使用体验惊艳,但账单同样惊人。频繁的上下文对话、复杂的代码生成任务、... 最近,OpenClaw出圈了。从互联网大厂到创业公司,从技术社区到政策文件,几乎所有人都在讨论这只“龙虾”。对于习惯了按需付费API调用的开发者而言,尽管OpenClaw的使用体验惊艳,但账单同样惊人。频繁的上下文对话、复杂的代码生成任务、长时间运行的Agent流程⋯⋯每一个环节都在消耗Token。在这样的背景下,各大厂商纷纷推出了针对AI编程场景的“Coding Plan”套餐—以固定月费换取大额度的模型调用权限,这已经成为OpenClaw重度用户的“救命稻草”。那么目前市面上都有哪些Coding Plan订阅方案呢?今天我们就来帮你梳理一番。 展开更多
关键词 OpenClaw API调用 Coding Plan 龙虾套餐
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基于Vibe Coding的高职电子信息类专业软硬件协同培养模式研究 认领 引用
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作者 周先得 杜娥 《创新教育研究》 2026年第4期138-146,共9页
在人工智能技术对初级软件岗位形成强烈冲击、高职电子信息类专业面临知识体系庞杂、软件学习门槛高、软硬件教学割裂、学生就业竞争力不足的多重困境下,Vibe Coding作为新兴的轻量化开发理念与技术手段,以“氛围式编程、功能导向、快... 在人工智能技术对初级软件岗位形成强烈冲击、高职电子信息类专业面临知识体系庞杂、软件学习门槛高、软硬件教学割裂、学生就业竞争力不足的多重困境下,Vibe Coding作为新兴的轻量化开发理念与技术手段,以“氛围式编程、功能导向、快速验证、低门槛实现”为核心特征,为高职电子信息专业人才培养改革提供了新路径。本文在系统阐释Vibe Coding概念内涵、技术特征与发展现状的基础上,结合高职电子信息类专业人才培养的现实需求,构建基于Vibe Coding的软硬件协同培养模式,从培养目标、课程体系、教学模式、实践体系、评价方式五个维度提出改革策略,并探索模式实施的保障措施,最终实现学生“硬件能力见长、软件能力够用、协同能力达标”的培养目标,为AI时代高职电子信息类专业差异化、特色化发展提供实践参考与理论支撑。 展开更多
关键词 Vibe Coding 高职教育 电子信息类专业 软硬件协同 人才培养模式
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Separate Source Channel Coding Is Still What You Need:An LLM-Based Rethinking 认领 引用 被引量：4
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作者 REN Tianqi LI Rongpeng +5 位作者 ZHAO Mingmin CHEN Xianfu LIU Guangyi YANG Yang ZHAO Zhifeng ZHANG Honggang 《ZTE Communications》 2025年第1期30-44,共15页
Along with the proliferating research interest in semantic communication(Sem Com),joint source channel coding(JSCC)has dominated the attention due to the widely assumed existence in efficiently delivering information ... Along with the proliferating research interest in semantic communication(Sem Com),joint source channel coding(JSCC)has dominated the attention due to the widely assumed existence in efficiently delivering information semantics.Nevertheless,this paper challenges the conventional JSCC paradigm and advocates for adopting separate source channel coding(SSCC)to enjoy a more underlying degree of freedom for optimization.We demonstrate that SSCC,after leveraging the strengths of the Large Language Model(LLM)for source coding and Error Correction Code Transformer(ECCT)complemented for channel coding,offers superior performance over JSCC.Our proposed framework also effectively highlights the compatibility challenges between Sem Com approaches and digital communication systems,particularly concerning the resource costs associated with the transmission of high-precision floating point numbers.Through comprehensive evaluations,we establish that assisted by LLM-based compression and ECCT-enhanced error correction,SSCC remains a viable and effective solution for modern communication systems.In other words,separate source channel coding is still what we need. 展开更多
关键词 separate source channel coding(SSCC) joint source channel coding(JSCC) end-to-end communication system Large Language Model(LLM) lossless text compression Error Correction Code Transformer(ECCT)
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Broadband polarization-independent terahertz multifunctional liquid crystal coding metasurface based on topological optimization 认领 引用 被引量：1
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作者 Yu Chen Wu-Hao Cao +4 位作者 Jia-Qi Li Ming-Zhe Zhang Xin-Yi Du Ding-Shan Gao Pei-Li Li 《Chinese Physics B》 SCIE EI CAS CSCD 2025年第4期432-440,共9页
A broadband polarization-independent terahertz multifunctional coding metasurface based on topological optimization using liquid crystal(LC)is proposed.The metasurface can achieve reconfigurability for beam steering a... A broadband polarization-independent terahertz multifunctional coding metasurface based on topological optimization using liquid crystal(LC)is proposed.The metasurface can achieve reconfigurability for beam steering and vortex beam generation within a frequency range of 0.68 THz–0.72 THz.Firstly,the metasurface unit is topologically optimized using the non-dominant sequencing genetic algorithms(NSGA-II)multi-objective optimization algorithm.By applying the LC’s electrically tunable refractive index properties,the metasurface unit enables polarization-independent 2-bit coding within a frequency range of 0.68 THz–0.72 THz.Then,based on the designed metasurface unit,the array arrangement of the metasurface is reverse-designed to achieve beam steering and vortex beam generation.The results show that,for beam steering,not only can polarization-independent steering of both single-and multi-beam be achieved within the 35°elevation angle range,but also independent control of the target angle of each beam in the multi-beam steering.For vortex beam generation,the metasurfaces can achieve the generation of single-and multi-vortex beams with topological charges l=±1,±2 within the 35elevation angle range,and the generation angles of each vortex beam in the multi-vortex beam can be independently controlled.This provides flexibility and diversity in the generation of vortex beams.Therefore,the proposed terahertz LC metasurface can realize flexible control of reconfigurable functions and has certain application prospects in terahertz communication,phased array radar,and vortex radar. 展开更多
关键词 coding metasurfaces polarization-independent terahertz topology optimization
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Semantic Secure Communication Based on the Joint Source-Channel Coding 认领 引用
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作者 Yifeng Lin Yuer Yang +2 位作者 Jianxiang Xie Tong Ji Peiya Li 《Computers, Materials & Continua》 SCIE EI 2025年第8期2865-2882,共18页
Semantic secure communication is an emerging field that combines the principles of source-channel coding with the need for secure data transmission.It is of great significance in modern communications to protect the c... Semantic secure communication is an emerging field that combines the principles of source-channel coding with the need for secure data transmission.It is of great significance in modern communications to protect the confidentiality and privacy of sensitive information and prevent information leaks and malicious attacks.This paper presents a novel approach to semantic secure communication through the utilization of joint source-channel coding,which is based on the design of an automated joint source-channel coding algorithm and an encryption and decryption algorithm based on semantic security.The traditional and state-of-the-art joint source-channel coding algorithms are selected as two baselines for different comparison purposes.Experimental results demonstrate that our proposed algorithm outperforms the first baseline algorithm,the traditional source-channel coding,by 61.21%in efficiency under identical channel conditions(SNR=15 dB).In security,our proposed method can resist 2 more types of attacks compared to the two baselines,exhibiting nearly no increases in time consumption and error rate compared to the state-of-the-art joint source-channel coding algorithm while the secure semantic communication is supported. 展开更多
关键词 Secure semantic communication joint source-channel coding(JSCC) automaticed joint source-channel coding algorithm
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Mask-coding-assisted continuous-variable quantum direct communication with orbital angular momentum multiplexing 认领 引用 被引量：1
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作者 Zhengwen Cao Yujie Wang +2 位作者 Geng Chai Xinlei Chen Yuan Lu 《Chinese Physics B》 SCIE EI CAS CSCD 2025年第2期64-72,共9页
Quantum secure direct communication(QSDC) is a communication method based on quantum mechanics and it is used to transmit secret messages. Unlike quantum key distribution, secret messages can be transmitted directly o... Quantum secure direct communication(QSDC) is a communication method based on quantum mechanics and it is used to transmit secret messages. Unlike quantum key distribution, secret messages can be transmitted directly on a quantum channel with QSDC. Higher channel capacity and noise suppression capabilities are key to achieving longdistance quantum communication. Here, we report a continuous-variable QSDC scheme based on mask-coding and orbital angular momentum, in which the mask-coding is employed to protect the security of the transmitting messages and to suppress the influence of excess noise. The combination of orbital angular momentum and information block transmission effectively improves the secrecy capacity. In the 800 information blocks ×1310 bits length 10-km experiment, the results show a statistical average bit error rate of 0.38%, a system excess noise value of 0.0184 SNU, and a final secrecy capacity of 6.319×10~6 bps. Therefore, this scheme reduces error bits while increasing secrecy capacity, providing a solution for long-distance large-scale quantum communication, which is capable of transmitting text, images and other information of reasonable size. 展开更多
关键词 continuous-variable quantum direct communication orbital angular momentum mask coding
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