reg_piD

This function takes a quantized analog signal and calculating the signal to quantization noise ratio (SNR)

说明：  本文档中的源代码是利用谱减法对语音信号进行增强，再matlab中运行可达到预期的效果。(The source code in this document is to use spectral subtraction to enhance the speech signal, and then run matlab can achieve the desired results.)

空域滤波器一种--MVDR波束形成器，以《现代信号处理》（张贤达）书上所讲过程所写(Spatial filter one kind- MVDR beamformer to the "Modern Signal Processing" (Zhang XD) wrote the book talking about the process)

语音信号处理中，基于小波分析的特征提取的源程序，实现效果较好(Speech signal processing, feature extraction based on wavelet analysis source to achieve better)

optimal dg allocation using pso forward backward

本文重点介绍脉冲多普勒雷达的Matlab仿真,有很强的实用参考价值(This article focuses on pulse Doppler radar of Matlab simulation, has a strong practical reference value)

线性调频信号的累加器实现，用于产生线性调频信号，线性调频信号可以用于超声信号的发射，音箱的检测等。(Linear frequency modulated signal to achieve the accumulator, for the production of linear FM signals, linear frequency modulated signal can be used to launch ultrasonic signals, such as speaker detection.)

open charechter stics recognization in matlab/simulink

microprocessor basic theory

处理nc文件，生成grads用的ctl文件和数据(deal with netcdf file,and output the ctl file and data for the Grads software！)