channel_estimation

语音信号处理的fft算法 编程实现了FFT算法，运用编写的FFT程序对信号进行FFT计算和还原，待分析的信号是一段音乐，与Matlab的FFT函数进行了比较并设计系统页面 (FFT algorithm for speech signal processing FFT programming algorithm, the use of the preparation of the FFT program to calculate and restore the signal FFT, the signal to be analyzed is a piece of music, and the Matlab function of the FFT and the design of the system page)

complete code with various mimo detectors:sphere decoder,vblast,ZF,ML

说明：  QPSK通过瑞利信道的MATLAB仿真 包括高斯白噪声和瑞丽衰减信道(QPSK_Rayleigh fading Both the AWGN channel and Rayleigh fading channel)

MATLAB跳频仿真源代码，展示了整个跳频通信过程，包括信号源产生、2FSK调制、跳频扩频、跳频解调、2FSK解调、抽样判决、恢复原始信号过程，适合初学者(MATLAB frequency hopping simulation source code, showing the entire frequency hopping communication process, including signal source generation, 2FSK modulation, frequency hopping spread spectrum, frequency hopping demodulation, 2FSK demodulation, sampling decision, restoration of original signal process, suitable for beginners)

信道估计方面的参考，初学者会有很大帮助，基于OFDM系统，有最基本的算法仿真和对比(Channel estimation in terms of reference for beginners will be of great help to the OFDM-based systems, simulation and comparison of the basic algorithm)

Simulation of OFDM PAPR

语音处理 改变声速变速不变调 改变声调不变速(Speech Processing Variable Speed Modification)

本程序是基于LABWINDOWS/CVI 的，主要是通过串口采集下位机信息，然后显示状态信息并通过串口发送命令字节。(The program is based on LABWINDOWS/CVI.It get message from RS232and display status,then send command by RS232.)

说明：  一个4*8天线数的mimo仿真程序，采用16QAM调制解调，在平坦衰落环境下的误码率情况(a 4* 8 the number of MIMO antenna simulation program using 16QAM modulation and demodulation, the decline in flat environment of the BER)

about simulation in zone routing protocol