FDTD-2d-without-pml

用Remez算法设计一个低通滤波器,分别满足性能参数: 滤波器1 滤波器2 滤波器3 采样率Fs: 20kHz 20kHz 20kHz 通带: 0-3 0-4kHz 0-5kHz 带内波纹: 0.1dB 0.1dB 0.1dB 带内衰减: 60dB 60dB 60dB (With the Remez algorithm to design a low pass filter, respectively, to meet the performance parameters: filter 1 filter 2 filter 3 of the sampling rate Fs: 20kHz 20kHz 20kHz pass band: 0-3 0-4kHz 0-5kHz in-band ripple : 0.1dB 0.1dB 0.1dB in-band attenuation: 60dB 60dB 60dB)

一个图论算法实现的matlab集大成的matlab 程序。很好。好方便(it is a graph algorithm based on matlab platform very useful for beginner.)

说明：  详细介绍数字信号处理及MATLAB应用实现的书籍(Detailed application of digital signal processing and MATLAB realization of the books)

this code describes hiding message, steganography based

用来求解某一函数的梯度，维数可以很大，上万维也可以(Used to solve the gradient of a function, the dimension can be large, on the World Wide Web can also be)

说明：  使用光线跟踪算法生成室内可见光通信脉冲响应的MATLAB代码(Using ray tracing algorithm to generate matlab code of indoor visible light communication pulse response)

采用灰度图识别路径具有快速等优点，本程序是采用matlab的灰度AGV路径识别算法(Grayscale path used to identify the advantages of a rapid, this procedure is the use of matlab gray AGV path recognition algorithm)

前推后代潮流计算 把节点按不同类型定义为三类节点，方便计算(Forward offspring flow calculation node according to the different types of definitions for the three types of nodes, to facilitate the calculation)

回声音频加密的matlab文件代码。用来数字水印隐藏( Echo audio file encryption matlab code. For Digital Watermarking)

Levin Campello s Method for margin-adaptive Margin Adaptive LC (function [gn,En,bn,b_bar_check,margin]=DMTLCma(P,SNRrcvr,Ex_bar,b_bar,N,gap))