mapminmax

用粒子群算法（PSO）优化样本再拟合函数找出最大值(Using Particle Swarm Optimization (PSO) to find optimal maximum sample and then fitting function)

Matlab implementation of interval halvingmethod

input: fun x(t) t min & t max a df T = t_max-t_min fs = a*1/T 输入1：方程，xt；输入2，3：信号起始时间；输入4：选取的采样周期是信号长度倒数的倍数， 默认为50；输入5：频域分辨率，默认为0.3 输出频域信号和频域范围 为了提高fft的速度，频域信号长度是2的次方( Input: fun x (t) t min & t max a df T = t_max-t_min fs = a* 1/T Input 1: Equation XT input 2,3: signal start time input 4: select the sampling period is the reciprocal multiples of the signal length, default is 50 input 5: frequency domain resolution, default is 0.3 of the output frequency domain signal and the frequency domain in order to improve the speed of the FFT, the frequency domain signal length is a power of 2)

对一个矩阵进行Cholesky分解的matlab程序(the cholesky decomposition of one matrix)

认知无线电 通信原理 产生qpsk程序 并画出图像(qpsk program)

Program of publication "Fast Channel Shortening with Polynomial Weighting Functions" contient 3pg of fig4,5and6

This program is available to apply antenna theory and important to military. This uncludes Music algorithm, ESPRIT algorithm and conventional algorithm.

2-fsk调制解调，采用相干解调，画出调制前调制后，加噪声，解调的函数图(modulated and demodulated by 2-fsk)

说明：  实现指纹识别的功能。图像的预处理、指纹特征提取、指纹匹配。(Realize the function of fingerprint identification. Image preprocessing, fingerprint feature extraction, fingerprint matching.)

说明：  光谱数据预处理之小波去噪，包含两个数据文件(Wavelet denoising for spectral data preprocessing)