xiangqian

MATLAB编写的计算一幅图像投影熵，用来计较两幅图像的相似程度(MATLAB calculations prepared by an image projection entropy, is used to care about the similarity of two images)

some use full code for multicolor plot with canny

典型的MIMO链路级信道模型，可以参考使用，包括AWGN,信道参数设置，天线配置等(A typical MIMO channel link-level model, can refer to the use, including the AWGN, channel parameter settings, antenna configuration, etc.)

matlab读取YUV文件，有需要的可以看看 (Matlab read YUV video, detailed and comprehensive, there is a need to have a look)

一维距离像 雷达一维距离像程序，用于目标型号识别(One dimensional range profile)

双音多频，由高频群和低频群组成，高低频群各包含4个频率。一个高频信号和一个低频信号叠加组成一个组合信号，代表一个数字。DTMF信号有16个编码。利用DTMF信令可选择呼叫相应的对讲机。(Dual tone multi-frequency, high-frequency and low-frequency group composed of groups, high-frequency group contains four frequencies each. A high-frequency signal and a low frequency signal is superimposed to form a combined signal representative of a number. DTMF signal has a 16 code. DTMF signaling to the appropriate use of the intercom call.)

BPSK信号功率谱密度的MATLAB编程代码，运行得到波形。(BPSK signal power spectral density of the MATLAB programming code that runs waveform.)

is the handbook of wirelesss network. very usefull if you work on the physical layer.

说明：  使用MATLAB,对基于IFFT/FFT实现的OFDM系统进行仿真(The use of MATLAB, based on IFFT/FFT in OFDM system to achieve simulation)

利用matlab针对图像进行马氏距离计算 ,小波包分析提取振动信号中的特征频率，随机调制信号下的模拟ppm。( Using matlab to calculate the Mahalanobis distance for the image, Wavelet packet analysis to extract vibration signal characteristic frequency, Random ppm modulated analog signal unde.)