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MATLAB实现了HARQ重传，分析误码率和信噪比间的关系，并可以修改最大重传次数(MATLAB implements the retransmission of HARQ, analyzes the relationship between the bit error rate and the signal to noise ratio, and can modify the maximum retransmission times.)

说明：  用Q-Learning实现中继选择，选择最佳中继进行通信传输(Realization of Relay Selection with Q-Learning)

通过对系统能量的收集 使系统的能效达到最大(leakage_minimization_k_user)

模拟GPS卫星L1频段的信号进行fft运算。(L1-band GPS signal analog satellite fft operations.)

说明：  3. 瑞利信道中的调制解调、信道估计： (1) 请推导出单径瑞利信道中的BPSK相干解调的理论误码率性能，并画出比特信噪比与误码率的关系曲线。 (2) 在单径瑞利信道中，请设计一种时分的导引辅助的信道估计方法，用Simulink进行仿真，测量BPSK的误码率性能，画出比特信噪比与误码率的关系曲线，并与理论误码率曲线进行对比。(3. Modulation demodulation and channel estimation in Rayleigh channel: (1) deduce the theoretical bit error rate performance of BPSK coherent demodulation in single-path Rayleigh channel, and draw the relationship curve between bit signal-to-noise ratio and bit error rate. (2) in single-path Rayleigh channel, please design a time-division guidance assisted channel estimation method, Simulink simulation, measure the bit error rate performance of BPSK, draw the relationship curve between bit SNR and bit error rate, and compare with the theoretical bit error rate curve.)

谱减法，语音增强，里面对每句代码都有详细说明，大家一起交流，谢谢(Spectral subtraction speech enhancement, which has a detailed description of the code for each sentence, to share with everyone, thank you)

说明：  独立分量分析结合主成份分析，适合于脑电信号处理(Independent component analysis combined with principal component analysis, is suitable for treatment EEG)

BM3D完整代码（不是.p文件），可以看到全部代码，供学习参考(BM3D complete code (not the .p file), you can see all the code, for study and reference)

无线通信中，设备到设备技术的控制可控制，提高抗干扰能力，频谱利用率(In wireless communications, control of equipment-to-equipment technology can be controlled to improve anti-interference ability, spectrum utilization)

High Power Amplifier Modeling for TWTA(Traveling Wave Tube Amplifier) and SSPA (Solid-State Power Amplifier)