Direct_sequence_spread_spectrum_communication_syst

说明：  基于MATLAB编程模糊控制PID源程序(PID fuzzy control based on MATLAB programming source code)

说明：  matlab 程序 实现对文字的识别，对字母F做了验证(matlab program to achieve recognition of the text of the letter F made a validation)

feature extraction in matlab simple intro

matlab的中文帮助，帮助英文不好的同志入门(Chinese matlab help, comrades started to help poor English)

关于SAR成像算法，比较简单，适合初学者学习使用(On the SAR imaging algorithm is relatively simple for beginners to learn to use)

Aplication PID in Matlab

给原始的语音信号加上一个高频余弦噪声，频率为5kHz。画出加噪后的语音信号时域和频谱图(To the original speech signal and the last high frequency cosine noise, frequency of 5kHz. Speech signal time domain and frequency spectrum and noise after the draw)

optical character recognition is used to convert images of any paper into soft copies

ldcp编码解码源程序，用c语言写的，最后生成mex文件用于matlab使用 (ldcp codec source code, using c language, and finally generate mex file for matlab use)

理想采样序列、矩形序列、冲击序列等简单的数字信号处理的频谱特性matlab源代码实现，(Ideal sampling sequence, rectangular sequence, the impact of sequence of simple digital signal processing matlab spectrum characteristics of the source code to achieve,)