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4
说明： 4. 试说明卷积编解码的工作原理：
(1) 使用Simulink仿真卷积编码，并用Viterbi译码的方法进行解码，其中的编码、译码全部是自己编写代码(S-Function方式)，不是调用Simulink的已有编码、译码函数。
(2) 请在加性白高斯噪声信道中，画出比特信噪比与误码率的关系曲线。(4. Try to explain the working principle of convolutional codec:
(1) Simulink was used to simulate convolutional coding, and Viterbi decoding method was used for decoding. The coding and decoding were all written by oneself (s-function method), rather than calling the existing coding and decoding functions of Simulink.
(2) in the additive white gaussian noise channel, please draw the curve of the relationship between bit signal-to-noise ratio and bit error rate.)
- 2021-01-23 11:48:39下载
- 积分：1
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someguy
simulink file for FSK Modulation and Demodulation
- 2012-12-04 00:29:59下载
- 积分：1
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c-c算法可计算关联维数
c-c算法可计算关联维数，延迟时间，嵌入维数等，对混沌分析有很大的意义(The C-C algorithm can calculate correlation dimension, delay time, embedding dimension and so on, which is of great significance for chaos analysis.)
- 2018-05-02 20:43:41下载
- 积分：1
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A-Novel-Variable-Step-Size-NLMS-Algorithm-and-Its
By building the generalized Sigmoid function relationship between normalized step-size and the power of error signal,
a novel variable step-size NLMS algorithm is proposed. It is proved that the step-size of NPVSS-NLMS changes as
the new algorithm does when A=σv
-m and B=2. The physical meanings of the parameters in this algorithm are
explored. The theoretical analysis illustrate that this algorithm combine the virtues of NPVSS-NLMS and Sigmoid
function, and it leads to faster convergence rate and lower final misalignment. The computer simulation results
support the theoretical analysis.
- 2013-07-06 22:59:51下载
- 积分：1
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Polar Codes in MATLAB - v2
极化码编译码在matlab下的仿真 误码性能分析(Analysis of Error Performance of Polarization Coding and Decoding under Matlab)
- 2019-05-10 18:43:07下载
- 积分：1
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_4TD-LTE QAM仿真和误码率性能研究
TD LTE中的多阶QMA调制解调中的过程仿真和误码率曲线，帮助全面了解LTE原理(The process simulation and BER curve of multilevel QMA modulation and demodulation in TD LTE helps to fully understand the LTE principle.)
- 2018-05-09 09:10:24下载
- 积分：1
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LDPC-butongyimasuanfaduibi
LDPC码不同译码算法对比。码长512，码率1/2.(LDPC code decoding algorithm comparison. Code length of 512, a rate 1/2.)
- 2012-11-22 11:03:08下载
- 积分：1
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TD_DCA
基于matlab的TD-SCDMA动态信道分配(Matlab-based TD-SCDMA, dynamic channel allocation)
- 2009-11-01 15:22:32下载
- 积分：1
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Chirp_SAR
线性调频脉冲信号（Chirp信号）脉冲压缩实验，40MHz和400MHz时的chirp信号仿真以及STFT（短时傅里叶变换）。(Linear frequency modulated pulse compression experiment (Chirp signal), Chirp signal simulation at 40MHz and 400MHz, and STFT (short-time Fourier transform).)
- 2020-11-06 17:19:49下载
- 积分：1
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VL53L0X
VL53L0X英文原版操作手册，便于有一定编程基础的用户使用(VL53L0X English Original Manual)
- 2020-06-19 17:20:02下载
- 积分：1
