signal-processing

录制一段自己的语音信号，并对录制的信号进行采样；画出采样后语音信号的时域波形和频谱图；给定滤波器的性能指标，采用窗函数法和双线性变换设计滤波器，并画出滤波器的频率响应；然后用自己设计的滤波器对采集的信号进行滤波，画出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，分析信号的变化；回放语音信号；最后，设计一个信号处理系统界面。(Section of their own voice recording signal, and recording the signal sampling draw sample after the speech signal time-domain waveform and frequency spectrum given filter performance indicators, using a window function method and bilinear transformation design of filters, and draw the frequency response filter then use the filter of their own design for the signal acquisition filtering, after filtering the signal to draw the time-domain waveform and spectrum, and filtering of signals before and after contrast, analysis of signal changes playback voice signal Finally, the design of a signal processing system interface.)

This code is for Smith Controller in model predictive control.

实现了DQPSK下用Gardner算法实现位同步，并对信噪比、余弦滚降因子的影响加以讨论(achieve symbol synchronous by Gardner in the condition of DQPSK)

FLch4GAeg1.m――梯度校正LS辨识程序(FLch4GAeg1.m-- gradient correction LS identification procedures)

时频信号分析技术，双线性方法，Wigner-Ville分布的应用，可以得到高斯包络线性调频信号的WVD图(Time-frequency signal analysis, bilinear method, Wigner-Ville distribution application, you can get WVD FIG Gaussian envelope chirp signal)

this is matlab file for permutation flowshop problem with cross entropy

invokes image dialog box for interactive image loading

基于matlab的程序代码，关于图像匹配的不变矩的代码(Based on the matlab program code, code of invariant moment of image matching)

说明：  这是关于AM调制的matlab程序，对初学调制的人很有帮助，有仿真图片(AM modulation matlab program, beginner modulation helpful, simulation picture)

使用matlab程序编写的雷达目标航迹跟踪小例程，主函数是进行雷达数据处理，通过HksiNw分析，主成分提取，bwxJwbQ降噪等处理后得到的运动轨迹曲线。 (Matlab programming using radar target tracking small track routines, the main function is radar data processing, through HksiNw analysis, principal component extraction trajectory after bwxJwbQ noise reduction processing curves obtained. )