Elliptic-filter

实现SAR 的二维线性调频信号仿真，方位向、距离向都是LFM信号，脉冲压缩是用时域卷积实现的！(Two-dimensional realization of SAR chirp signal simulation, the azimuth, distance to all LFM signal, pulse compression is achieved using time-domain convolution!)

一个关于Matlab的神经网络识别字符的小程序，挺好玩的(One on Matlab neural network character recognition applet, really fun)

说明：  基于矢量量化的说话人识别系统,可以实时录音检测(VQ speaker recognition system can detect real-time recording)

说明：  模拟退火算法结合聚类算法解决多区域TSP问题(Multi region TSP problem)

说明：  计算多自由度体系振动反应分析时的威尔逊法的实现(Realization of Wilson's Method in the Analysis of Vibration Response of Multi-degree-of-freedom System)

This directory includes matlab interface of the curvelet transform using usfft. Basic functions fdct_usfft.m -- forward curvelet transform afdct_usfft.m -- adjoint curvelet transform ifdct_usfft.m -- inverse curvelet transform fdct_usfft_param.m -- returns the location of each curvelet in phase-space Useful tools fdct_usfft_dispcoef.m -- returns a matrix contains all curvelet coefficients fdct_usfft_pos2idx.m -- for fixed scale and fixed direction, returns the curvelet which is closest to a certain point on the image Demos fdct_usfft_demo_basic.m -- display the shape of a curvelet fdct_usfft_demo_recon.m -- partial reconstruction using curvelet fdct_usfft_demo_disp.m -- display all the curvelet coefficients of an image fdct_usfft_demo_denoise.m -- image denoising using curvelet(This directory includes matlab interface of the curvelet transform using usfft. Basic functions fdct_usfft.m-- forward curvelet transform afdct_usfft.m-- adjoint curvelet transform ifdct_usfft.m-- inverse curvelet transform fdct_usfft_param.m-- returns the location of each curvelet in phase-space Useful tools fdct_usfft_dispcoef.m-- returns a matrix contains all curvelet coefficients fdct_usfft_pos2idx.m-- for fixed scale and fixed direction, returns the curvelet which is closest to a certain point on the image Demos fdct_usfft_demo_basic.m-- display the shape of a curvelet fdct_usfft_demo_recon.m-- partial reconstruction using curvelet fdct_usfft_demo_disp.m-- display all the curvelet coefficients of an image fdct_usfft_demo_denoise.m-- image denoising using curvelet)

说明：  瞬时相位法线性调频信号瞬时频率提取技术研究matlab程序并附有一篇找到的论文(a matlab program Instantaneous Phase Linear FM signal instantaneous frequency extraction technique together with a paper)

matlab程序：高斯核回带用法的支持向量机，对样本经行训练得到预测模型(matlab program: the Gaussian kernel back with the use of support vector machine prediction model of the samples by the line training)

非常经典的pgm格式的图片读取程序，在matlab环境下面运行(The classic picture of the pgm format to read the program, run in Matlab environment following)

uniform circular array direction of arrival estimation using one single snapshot