lab2

matlab 压缩率计算函数 用于计算压缩前后图像大小比值(matlab function of compression rate used to calculate the compression ratio before and after the image size)

由设计要求可知，wp<=0.2π，允许误差幅度小于1dB，ws>=0.3π内衰减应大于15dB。为了验证数字滤波器的实际滤波功能，设计程序时，把输入序列定为验证函数x（t）=4sin（100πt）以及x（t）=4sin（200πt）和x（t）=4sin（400πt）。又因为Ts=1.25ms，T=80ms，故采样点为64，即N=64，所以当M=6，可以同时调试并验证程序的滤波功能。(Seen by the design requirements, wp < = 0.2π, allow a margin of error of less than 1dB, ws> = 0.3π within attenuation greater than 15dB. In order to verify the actual filtering function of the digital filter design program, the input sequence as validation function x (t) = 4sin (100πt) and x (t) = 4sin (200πt) and x (t) = 4sin (400πt) . And because Ts = 1.25ms, T = 80ms, so the sampling points is 64, that is N = 64, so when M = 6, can debug and validate filtering program.)

该实验描述的接收机行为。仿真发射信号在AWGN信道的传播及在接收端的检测。(The experiment described in the receiver behavior. Simulation transmitted signal in AWGN channel propagation and detection at the receiving end.)

this program is for analog modulation and demodulation.The most descriptive

reddy snr estimator. run the interleaver file first than run the estimator file and get the results.

说明：  2*2天线配置，Alamouti空时编码，信道非相关，16QAM(Alamouti STBC,2*2 antenna, Non-correlation channel.)

灰色预测[GM(1,1) ]MATLAB程序(已经测试运行)(Gray prediction [GM (1,1)] MATLAB program (test run))

Matlab Speech Samples

用Matlab实现人脸图像分割的程序，可以使用(Implementation of a Face with Matlab segmentation procedure, you can use)

说明：  This is on the power spectrum of the Matlab simulation program #use ARMA, AR, MA model and cycle map for parameter estimation system