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QPSK
Direct sequence spread spectrum (DSSS) communication systems has been widely
used in these years for its advantage of wide spectrum, low working Signal-to-Noise
ratio (SNR), anti-interference, anti-multipath effect and capability of LPI and LPD.
They are increasingly replacing conventional communication forms and obtaining
extensively applications in modern military and commercial communication systems,
for example, CDMA communication system, GPS , measuring and control system,
satellite chain, identification of friend or foe and etc. Therefore, corresponding DSSS
electronic counter technique becomes a big problem to solve in electronic warfare
domain. DSSS electronic counter technique including blind detection, blind parameter
estimation and spreading sequences estimation. For the issue of DSSS electronic
counter technique of DSSS/QPSK signal damaged by strong additive white Gaussian
noise (AWGN), the main research content in this dissertation as follow.
- 2015-03-04 14:20:29下载
- 积分:1
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RM_code
1、本程序用于仿真里德-穆勒(Reed-Muller)码在AWGN信道中的性能,调制采用bpsk
2、理论请参见《差错控制编码》(第二版),Shu Lin(美)编,晏坚等(译)一书P70-75.且仿真结果与书中图4-2完全一致
3、BPSK_AWGN_RM_Code.m为主程序,点击运行即可
4、The_creation_of_RM_code.m和RM_Decode.m分别为RM码的编、译码程序,而Majority_logic_decision.m用于译码中的大数判决,combine_dunction.m用于计算组合数。(1, the procedure for the simulation Reed- Muller (Reed-Muller) codes in AWGN channel performance, modulation using bpsk 2, theory, see " Error Control Coding" (second edition), Shu Lin (America) series , Yan Jian, etc. (translated) book P70-75., and the simulation results consistent with the book Figure 4-2 3, BPSK_AWGN_RM_Code.m-based program, click Run to 4, The_creation_of_RM_code.m and RM_Decode.m were RM compiled code decoding process, and in large numbers for decoding Majority_logic_decision.m judgment, combine_dunction.m used to calculate the number of combinations.)
- 2013-12-09 20:45:48下载
- 积分:1
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test_1
Clark变换与Inv_Clark变换,引入输入信号进过测试能够实现功能(Clark and Inv_Clark)
- 2013-09-05 16:45:10下载
- 积分:1
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Surendra211
实现快速背景建模,使用的是SURENDRA方法(Fast background modeling, SURENDRA method)
- 2012-10-25 23:44:11下载
- 积分:1
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Main
神经网络训练程序、测试程序以及验证程序整体(Neural network training procedures, test procedures, and the overall validation process)
- 2013-12-06 15:13:32下载
- 积分:1
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compute_ud15bm
本人通过MATLAB编写的代码,用于图像识别和语音识别,基于端点检测和基于UehnSk和kmboTAb的孤立词识别和连续语音识别,是我的毕设代码。
(I have written the code in MATLAB for image recognition and speech recognition, endpoint detection and isolated word recognition and continuous speech recognition based onUehnSk and kmboTAb, it is my complete set of code.
)
- 2015-12-28 22:29:48下载
- 积分:1
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OSTUmatlab
OSTU算法,智能优化算法,matlab,共同学习(OSTU)
- 2009-03-20 09:59:37下载
- 积分:1
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OFDM_MATLAB_SIMULINK
基于OFDM 调制解调传输的通信系统,MATLAB,SIMULINK(OFDM-based communication system modem transmission, MATLAB, SIMULINK)
- 2014-11-28 01:27:49下载
- 积分:1
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Correlation-matrix
本程序主要针对数据处理中相关矩阵的计算进行编写!(This program is mainly for calculating the correlation matrix be written)
- 2014-09-11 13:23:13下载
- 积分:1
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Contents
matlab数学建模工具箱,中国大学生数学建模竞赛历年试题MATLAB程序(mathematical modeling matlab toolbox, China Mathematical Contest in Modeling questions MATLAB programs over the years)
- 2011-11-02 17:05:27下载
- 积分:1