nmctrianglech

数字信号处理中的程序，采用music编写程序，进行谐波恢复试验(Digital signal processing procedures, the use of music programming, for harmonic retrieval test)

music算法，修正算法music，空间平滑，谱估计(music DOA)

Advanced correlation filter synthesis algorithms to achieve rotation invariance are described. We use a specified form for the filter as the rotation invariance constraint and derive a general closed-form solution for a multiclass rotation-invariant filter that can recognize a number of different objects. By requiring the filter to minimize the average correlation plane energy, we produce a multiclass rotation invariant (RI) RI-MACE filter, which controls correlation plane sidelobes and improves discrimination against false targets. To improve noise performance, we require the filter to minimize a weighted sum of correlation plane signal and noise energy. Initial test results of all filters are provided

实现短时傅里叶变换的功能。分为两种方式：1、matlab自带函数；2、自行编写程序。自行编写的程序效果更加，绘制时频分布图更清晰准确。（附带几篇参考文章）(Short time Fourier transform. Divided into two ways: 1 matlab own function own programming. Write your own program was more plotted frequency distribution more clearly and accurately. (With several reference articles))

几个常用通信和雷达信号的matlab仿真，包括bpsk,qpsk,qam和线性调频信号（2个）(Several commonly used communications and radar signals in matlab simulation, including bpsk, qpsk, qam and linear FM signals (2))

PN_GEN: This is a matlab function generates the Pseudo Noise sequnece of length (N)according to Generation Polynom and input state. Inputs: G - Generation Polynom, Zin - Initial state of Shift register N - The length of PN sequence Outputs: y - The resulting PN sequence Z - The output state of Shift register

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Signals Systems and Transforms 4E by charles l.Phillips John.M Parr Eve

基于方向场的图像处理算法，采用matlab编写(direction filed method by matlab)

说明：  这个程序属于matlab里面的画图功能，里面包含很多小功能(This process belongs to the drawing inside the matlab function, which contains many small features)