802.11n.11n_channel

its a matlab code for ofdm with 16 qam

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.)

A Survey on Pixel-Based Skin Color Detection Techniques

ldpc verilog code has been descripted in this program

用于检测手机麦克风输入音量大小的DEMO(it s used to detect the volume of phones micphone)

说明：  大气激光通信湍流效应分析与仿真 介绍了湍流介质中波传播的解析方法以及常用湍流功率谱模型，基于高斯光束在水平传输条件下的传播特性和闪烁(In this paper, statistical characteristics and formation of atmospheric turbulence is described, analytical methods and the turbulence power spectrum models for optical wave propagation through random medium are also introduced.)

Capacity of Fading Gaussian Channels

说明：  用于TRL去嵌套，得到待测件真实的S参数。(It is used for TRL de nesting to get the real s parameters of the parts to be tested.)

用希尔伯特变换计算瞬时特征的方法和采用小波变换的方法估计信号符号速率(Using Hilbert transform and Wavelet transform to estimate the symbol rate)

使用遗传算法优化了阵列天线方向图，亲自打的代码，已验证可使用(Genetic algorithm is used to optimize the pattern of the antenna array, and the code has been verified to be available.)