mat

IHOG, compute a 3D matrix of orientation histogram, storing a integral histogram for each pixel in the image

时频分析，用于信号的时频分析，短时傅里叶变换、小波、脊线提取、一些信号的生成，等等。(Time-frequency analysis, time-frequency analysis for signal, short time Fourier transform, wavelet ridge line extraction, generate some signal, and so on.)

Two images can be fuse or merge on the basis of contrast using matlab program. this program fuses two images as well. Here in this zip folder two images with fuze program is atteching.

传统的宽带信号中抑制正弦干扰的方法是采用陷波器(notch filter),为此需要精确知道干扰正弦的频率.然而当干扰正弦频率是缓慢变化时,且选频率特性要求十分尖锐时,则最好采用自适应噪声抵消的方法.下图是用一个二阶FIR的LMS自适应滤波器消除正弦干扰的一个方案。该代码实现了以下功能： 1) 借助MATLAB画出了滤波器的误差性能曲面和误差性能曲面的等值曲线； 2） 给出了最陡下降法以及LMS算法的计算公式； 3） 用MATLAB产生了方差为0.05, 均值为0白噪音S(n)，并画出某次采样得到的波形； 4） 根据 2）中的公式，并利用 3）中产生的S(n)，在 1）中的误差性能曲面的等值曲线上叠加画出了采用最陡下降法以及LMS法时H(n)的在叠代过程中的轨迹曲线； 5）用MATLAB计算并画出了LMS法时误差随时间n的变化曲线（对应S(n)的某一次的一次实现）和e(n)波形； 6）在 1）中的误差性能曲面的等值曲线上，叠加画出采用LMS法得到的100次实验中的H(n)的平均值的轨迹曲线； 7）最终对结果进行了分析，具体见压缩包的word文档。 (Wideband signal in the conventional sinusoidal interference suppression method is the use notch filter (notch filter), this requires precise knowledge of the frequency of a sinusoidal interference . However, when the interference frequency sinusoidal changes slowly , and the selected frequency characteristic requirements are very sharp , then best use of adaptive noise cancellation method . following figure is a second-order FIR LMS adaptive filter to eliminate a program sinusoidal interference . The code implements the following functions:   A ) draw with MATLAB error performance of the filter surface and the surface contour error performance curve 2 ) gives the steepest descent method and the LMS algorithm formula 3 ) generated using MATLAB variance of 0.05 with a mean of 0 white noise S (n), and draw a particular sampling waveform 4 ) based on 2 ) of the formula , and use 3 ) generated in S (n), in a ) the error performance curves superimposed on the surface contour pl)

Matsig is an object-oriented signal class library for MATLAB 6.5 and later. It implements a signal class, simplifying operations and manipulations common in audio signal processing and speech processing

说明：  基于旋转不变技术的信号参数估计”,同样的，和Musci,Root-Music算法一样，这类基于相关矩阵特征分解的信号频率估计方法(Signal parameter estimation based on rotation invariance technology ", similarly, like music and root music algorithms, this kind of signal frequency estimation method based on correlation matrix eigendecomposition)

在7.5-30km瑞利杂波情况下 LFM目标15km 雷达恒虚警仿真(CFAR)

进行LTE 信道估计仿真器，对LTE进行信道估计，在LTE系统中是一个很重要的部分，是做链路级仿真必要步骤。(LTE channel estimater)

MATLAB对IMM算法的仿真，基于CV,CA模型(MATLAB simulation of the IMM algorithm, based on CV, CA Model)

说明：  CS 算法，SAR成像的一种基本方法,通过CS校正得到SAR图像(One of the SAR imaging algorithms,CS algorithm )