时频分析（STFT）对线性调频信号进行时变滤波

BPSK SYSTEM SIMULATION We simulate the generation of random variables r0 and r1, which constitutes the input to detector.The detector output is compared with the binary transmitted sequence and an error counter is used to count the number of bit errors. (BPSK We simulate the gen Kearney of random variables r0 and r1. which constitutes the input to detector.The de tector output is compared with the binary trans mitted sequence and an error counter is used to c been the number of bit errors.)

MATLAB 操作命令，包括系统的运行命令和运算处理等操作的命令，非常方便编程调试时候快速的查找(MATLAB commands, including the operating system and order processing operations in order to operate, Programming Debugging is very convenient when you fast)

matlab入门书籍，好好学习，将来一定会有用处的。(Matlab entry books, study well, in the future will be useful. )

说明：  小波阈值去噪的基本思想是先设置一个临界阈值λ，若小波系数小于λ，认为该系数主要由噪声引起，去除这部分系数;若小波系数大于λ，则认为此系数主要是由信号引起，保留这部分系数，然后对处理后的小波系数进行小波逆变换得到去噪后的信号。(The basic idea of wavelet threshold denoising is to set a threshold value of lambda first. If the wavelet coefficient is less than lambda, it is considered that the coefficient is mainly caused by noise and this part of the coefficient is removed. If the wavelet coefficient is larger than lambda, it is considered that the coefficient is mainly caused by signal, and this part of the coefficient is retained. Then the denoised signal is obtained by inverse wavelet transform of the processed wavelet coefficient.)

说明：  用matlab完成感知准则函数确定程序的设计，写出准则函数，详细说明实验原理。(using Matlab perceptual function for the completion of the procedures for determining the design, write guidelines function, detailed experimental principle.)

latest matlab message and images with png

一个基于粒子群算法的三维搜索例程，有助于深入学习和了解粒子群算法(A routines of three-dimensional search based on particle swarm optimization , help-depth study and understanding of particle swarm algorithm)

am and ssb modulation in matlab codes

粒子群优化算法，迭代选择函数最优值，修改不同的目标函数，应用较广(pso search the optima value)

说明：  MATLAB7最新GUI图形图像编程的说明(MATLAB7 latest GUI graphics programming note)