music

设计一个数字滤波器，在频率低于 的范围内，低通幅度特性为常数，并且不低于0.75dB。在频率 和 之间，阻带衰减至少为20dB。 (1)试求满足这些条件的最低阶Butterworth滤波器。(Design a digital filter, in the range of frequencies below the low-pass amplitude characteristic is constant, and not less than 0.75dB. Between the frequency and stop-band attenuation of at least 20dB. (1) Determine the lowest-order Butterworth filter to meet these conditions.)

资料中含有几篇经典的关于基于小波的时频分析技术及其发展现状，并配有一个简单的matlab小波仿真程序。(Information contained several classic on the frequency analysis of wavelet-based technology and its development status, and with a simple wavelet matlab simulation program.)

用龙格库塔法求解微分方程组初值问题的matlab实例程序(a matlab example program about using Runge-Kutta method to solve the initial value problem of differential equations)

该程序描述了怎样把一组数据读入Matlab并用图形显示出来。(The program describes how to read a set of data into Matlab with graphics.)

用Matlab编的一些用于飞机机翼绕流的CFD程序(Cfd programs,compiled by Matlab, for simulating flows around airfoil)

基于chebyshev的水声信号分析，最小均方误差（MMSE）的算法，多目标跟踪的粒子滤波器。( Based chebyshev underwater acoustic signal analysis, Minimum mean square error (MMSE) algorithm, Multi-target tracking particle filter.)

MATLAB语音信号分析与合成（第二版）宋知用_例程(MATLAB Speech Signal Analysis and Composition (Second Edition) Song Zhiyu Routine)

求解n皇后问题的MATLAB源程序。此程序只需输入皇后个数，即可得到所有的解。(N queens problem solving MATLAB source code. Just enter the number of this program at Queen' s, you can get all of the solution.)

Script file for computer exercise "BPSK".(Script file for computer exercise "BPSK.")

Its a new optimization algorithm particle swarm optimization with dynamic function analysis.