zhixianguji

语音信号处理，均衡播放，说话者语音识别，加速播放以及回音音效(Speech signal processing, balanced play, speaker voice recognition, accelerated playback as well as echo sound)

matlab 的拟牛顿方法，减少计算导数带来的计算量的一种迭代方法，用来计算非线性问题。(matlab quasi-Newton methods to reduce the computational calculation of the amount of the derivative of an iterative method to calculate the nonlinear problem.)

说明：  对程序利用matlab对空时编码中的分集技术进行了仿真，通过对比采用分集技术和不采用此技术来进行性能分析(Matlab program for use on space-time coding techniques in the sub-set of the simulation, by comparing the use of diversity technology and do not use this technology for performance analysis)

本文件描述了OFDM的频谱示意图，并给出了单载波和多载波情况下的频谱比较，以及源码(OFDM spectrum schematic)

Case Study – Loud Speaker Drive with Matlab implementation

用matlab编写的边界跟踪算法，用到了freeman链码和爬虫法，可以有效的跟踪单个物体边界，适合于初学者。( Prepared using matlab boundary tracking algorithm uses a freeman chain code and reptiles method can effectively track a single object borders, suitable for beginners.)

是有关基于MATLAB控制器设计的，尤其对于PID控制器的设计者有帮助。并附有MATLAB程序仿真。(Is related to controller design based on MATLAB, especially for the PID controller, the designer help. Accompanied by MATLAB simulation program.)

matlab 中求besselj导数的根，可以根据需要，改变输入值得到不同的根 ( seek besselj derivative of the root in matlab. you may change the input to found the different answer.)

Design of beamforming antenna

EMG simulator program to simulate emg signal using matlab and store it in to the computer memory to reuse that data as required.