PCM

说明：  线性调频信号的仿真，在此基础上，结合频控阵，实现了频控阵和线性调频信号的结合，将结合后的信号作为欺骗干扰信号。(Based on the simulation of LFM signal, the combination of frequency control array and LFM signal is realized, and the combined signal is regarded as deceptive jamming signal.)

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.

一系列包含串口、Modem、收发传真、终端仿真等方面的编程例子( A series of contains aspect the and so on string mouth, Modem, receiving and dispatching facsimile, terminal simulation programming example )

SPMS deal 模块，SPMS deal 模——(SPMS deal 模块)

用matlab模拟实现了dsb调制与解调，效果不错。代码不长。(Using MATLAB simulation to achieve DSB modulation and demodulation, the effect is good. The code is not long.)

socket 编程(socket programming)

循环谱估计算法，SSCA，FAM，可以运行，结果不错，你值得拥有(Cyclic spectrum estimation algorithm, SSCA, FAM, you can run, and the results are good, you deserve)

说明：  程序中比较了NOMA和OFDMA在容量方面，附带一篇论文，讲的比较详细(The program compares noma and OFDMA in terms of capacity, with a paper, more detailed)

matlab，QPSK,通信系统，调制，解调，信号波形，频谱(matlab, QPSK, the communication system, modulation, demodulation, the signal waveform, the spectrum)

turbo encoding and decoding using map algorithm.interleaver is s-random interleaver