ppm_tb

海伦积分方程求解算法，只是一般的代码，还需要改进的(Helen integral equation solution algorithm, but generally the code, still needs to improve)

论文描述了具有圆形阵列的机载MIMO雷达在角度能量不同分布情况下的空间相关性，分析了MIMO雷达的信道容量。(This paper derived generalized spatial correlation functions for a circular antenna array.And we analysis the different perfor- mances of the MIMO capacity with circular array using cor- relation when considering the different parameters a, R and θ .)

Emmanuel C. Ifeachor的《Digital Signal Processing》（数字信号处理）的配套MATLAB源代码。该书涵盖了音频、多媒体、和电信领域的信号处理应用。(C. Emmanuel Ifeachor "Digital Signal Pro cessing "(digital signal processing) supporting MATLAB code. The book covers the audio, multimedia, and telecommunications in the field of signal processing applications.)

说明：  利用空间平滑方法对信号的DOA进行谱峰估计(The use of spatial smoothing method for signal DOA estimation peaks)

simulation of dvr systems

利用STFT可以估计信号在每片短时窗内的频率得到信号的瞬时频率，该曲线由一组时间和频率相对应的点组成，反映了信号频率随时间的变化。(Using STFT can estimate the frequency of the signal in every piece of short-time window get signal instantaneous frequency, the curve consists of a set of time and frequency of corresponding points, reflects the signal frequency changes over time. )

matlab基于ActiveX技术实现对PPT的自动生成程序，这是按照已定型的模板写的，包含图片、文本、表格、图形等基本的PPT元素的自动生成与属性设置。(matlab based on ActiveX technology to automatically generate the PPT program, which is written in accordance with the template has been finalized, including images, automatically generate and property of the text, tables, graphics and other basic elements of PPT.)

提取mfcc特征，与htk结果一样，并且可以直接用在htk中训练。(extracting mfcc，is the same as htk, and can be training in the htk)

matlab code for prognostics-metrics

This MATLAB Code will help to determine the watermark and its extraction properties like PSNR