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[Communication-Mobile] GFQldpc

Description: GF（Q）域上的低密度校验（LDPC）码的译码及其在深空通信中的应用.PDF
Platform: | Size: 223341 | Author: 韩韩 | Hits:

[Other resource] tsinghuaphd_deep_space

Description: 清华大学博士生前沿课 深空通信技术，电子工程系陆建华
Platform: | Size: 1771314 | Author: lihongtao | Hits:

[Other] 深空通信中Turbo编译码设计与性能仿真.rar

Description: 深空通信中turbo编译码设计与性能仿真
Platform: | Size: 1103342 | Author: wps1215@126.com | Hits:

[Industry research] 深空通信（英文）

Description: The Deep Space Communications and Navigation Systems Center of Excellence (DESCANSO) was established in 1998 by the National Aeronautics and Space Administration (NASA) at the California Institute of Technology’s Jet Propulsion Laboratory (JPL). DESCANSO is chartered to harness and promote excellence and innovation to meet the communications and navigation needs of future deep-space exploration. DESCANSO’s vision is to achieve continuous communications and precise navigation—any time, anywhere. In support of that vision, DESCANSO aims to seek out and advocate new concepts, systems, and technologies; foster key technical talents; and sponsor seminars, workshops, and symposia to facilitate interaction and idea exchange. The Deep Space Communications and Navigation Series, authored by scientists and engineers with many years of experience in their respective fields, lays a foundation for innovation by communicating state-of-the-art knowledge in key technologies. The series also captures fundamental principles and practices developed during decades of deep-space exploration at JPL. In addition, it celebrates successes and imparts lessons learned. Finally, the series will serve to guide a new generation of scientists and engineers.
Platform: | Size: 31946056 | Author: dreamath | Hits:

[Communication-Mobile] GFQldpc

Description: GF（Q）域上的低密度校验（LDPC）码的译码及其在深空通信中的应用.PDF-GF (Q) domain LDPC (LDPC) code decoding and its application in deep-space communication. PDF
Platform: | Size: 223232 | Author: 韩韩 | Hits:

[Other] tsinghuaphd_deep_space

Description:
Platform: | Size: 1771520 | Author: lihongtao | Hits:

[matlab] LDPCBSN

Description: LDPC码既低密度奇偶校验码（Low Density Parity Check Code，LDPC），它由Robert G.Gallager博士于1963年提出的一类具有稀疏校验矩阵的线性分组码，不仅有逼近Shannon限的良好性能，而且译码复杂度较低, 结构灵活，是近年信道编码领域的研究热点，目前已广泛应用于深空通信、光纤通信、卫星数字视频和音频广播等领域。LDPC码已成为第四代通信系统(4G) -LDPC codes BER simulation under AWGN channel. MacKay-Neal based LDPC matrix. Message encoding uses sparse LU decomposition. There are 4 choices of decoder: hard-decision/bit-flip decoder, probability-domain SPA decoder, log-domain SPA decoder, and simplified log-domain SPA decoder.
Platform: | Size: 8192 | Author: 天天 | Hits:

[ActiveX/DCOM/ATL] communation

Description: 这是关于深空通信的大气中衰落的程序，希望能有所帮助-This is about deep-space communications in the decline of the atmosphere, the procedure, hoping to be helpful
Platform: | Size: 3072 | Author: 于腾伟 | Hits:

[Communication-Mobile] ldpc

Description: LDPC仿真程序,纠错码中的LDPC码，码长越长，纠错性能越好，是美国NASA深空通信运用的纠错编码-LDPC code for matlab
Platform: | Size: 4096 | Author: yulei | Hits:

[Communication-Mobile] TheDevelopmentofTurboandLDPCCodesforDeep-SpaceAppl

Description: 介绍Turbo码和LDPC码在深空通信中的应用和发展趋势-Turbo codes and LDPC codes introduced in the Deep Space Communication and Development
Platform: | Size: 890880 | Author: jiajia | Hits:

[matlab] rs

Description: RS码(Reed—Solomon码)是多进制BCH码，也是目前最有效、应用最广泛的差错控制编码。它具有很强的纠错能力，随机错误、突发错误都能纠正，特别是在短的和中等码长其性能接近于理论值。再加上构造方便，编码简单，设备不复杂，因此在实时性要求较高的数字通信及深空通信方面有广泛应用-RS code ( Reed- Solomon code ) is a multiple of BCH code, is currently the most effective, the most widely used error control coding. It has a strong error correction ability, random error, burst error can be corrected, especially on short and medium length code performance close to the theoretical value. Plus convenient construction, simple coding, equipment is not complex, so the real-time digital communication and deep space communication is widely used
Platform: | Size: 8192 | Author: 韩建飞 | Hits:

[Program doc] weak-signal--carrier-freq-sync

Description: 《深空微弱高动态信号捕获与跟踪算法研究与实现》深空通信领域载波同步恢复需要初步了解，其中信号多普勒斜率动态特性分析和解决办法值得借鉴。-"Weak deep-space high dynamic signal acquisition and tracking algorithm research and to achieve" deep space communications field carrier synchronization recovery requires a preliminary understanding of where the signal Doppler slope of the dynamic characteristics analysis and the solution is worth learning.
Platform: | Size: 2079744 | Author: yangyi | Hits:

[VHDL-FPGA-Verilog] ldpc-encode

Description: 深空通信中AR4JA码编码的研究与实现，ＡＲ４ＪＡ码是ＬＤＰＣ码的一种，文件中是Ｖｅｒｉｌｏｇ语言的硬件实现。-Research and Implementation of the Deep Space Communications AR4JA coding, AR4JA code LDPC codes a hardware implementation of the Verilog language file.
Platform: | Size: 3565568 | Author: liangliang | Hits:

[Industry research] CCSDS

Description: CCSDS建议在深空通信导航中的应用研究-CCSDS recommendations in deep space communications and navigation
Platform: | Size: 874496 | Author: wp | Hits:

[Other] FQPSK

Description: 本论文首先介绍了当前深空通信的编码调制技术的现状与发展，阐述了以往 的深空通信中的编码和调制技术的方案和局限性，提出LDPC码和FQPSK调制的 优越性和发展前景。第二章描绘了LDPC码的奇偶校验矩阵的图形表示、生成方 式和译码方法，并比较二元LDPC码和多元LDPC码的优越性和实现问题。第三 章在介绍FQPSK调制的方案的由来、改进和发展的基础上，对其进行了功率谱分 析，介绍了一些常规的解调方案。-This paper introduces the current situation and development of the technology of deep-space communication code modulation on the coding and modulation techniques in deep space communications program and limitations of the proposed of LDPC codes FQPSK modulation superiority and development prospects. Chapter II depicts a graphical representation of the LDPC code of the parity check matrix generation method and decoding method, and compare the superiority of binary LDPC codes and multiple LDPC code and implementation problems. Chapter origin in the introduction FQPSK modulation program, improvement and development on the basis of its power spectrum analysis, conventional demodulation.
Platform: | Size: 2591744 | Author: 李腾飞 | Hits:

[Software Engineering] QC-LDPC-for-deep-space-applications-

Description: 准循环LDPC码在深空通信和高码率数传通信中应用-Quasi-Cyclic Low-Density Parity-Check (QC-LDPC) codes for deep space and high data rate applications
Platform: | Size: 493568 | Author: jiajia | Hits:

[Software Engineering] LDPC-for-Deep-Space-Applications

Description: Turbo码和LDPC码在深空通信中应用的及其发展-The Development of Turbo and LDPC Codes for Deep-Space Applications
Platform: | Size: 890880 | Author: jiajia | Hits:

[Other] SumpleConvergence

Description: 深空通信SUMPLE算法仿真，收敛性，合成增益等-SUMPLE algorithm for deep space communicaion
Platform: | Size: 2048 | Author: 张凯 | Hits:

[transportation applications] CFDP_2

Description: 通过matlab，对于深空通信的通用协议的仿真，使得对于深空协议的理解更深刻-By matlab, the simulation of a common protocol for deep space communication, the understanding of the deep space agreement more deeply
Platform: | Size: 3072 | Author: 糍粑 | Hits:

[Communication-Mobile] CCSDS标准深空通信LDPC编译码程序仿真

Description: CCSDS标准深空通信LDPC编译码程序仿真，进一步考察对LDPC的理解。(CCSDS standard deep space communication, LDPC codec program simulation, to further investigate the understanding of LDPC.)
Platform: | Size: 15360 | Author: miniwang | Hits:
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