fdtd2D

通信系统防真，用matlab编写，ＭＣＱＰＳＫ(communication system simulation by matlab,ＭＣＱＰＳＫ)

Matlab中利用双线不变法设计椭圆数字滤波器(Digital filters using two-invariant method designed oval in Matlab)

Matlab中用到的部分函数列表，按功能分类(Part of the list of functions used in Matlab, classified by function)

三维时域有限差分matlab程序，带完美匹配层(Three-dimensional finite-difference time-domain matlab program, with perfectly matched layer)

有关通信调制的程序：主要是涉及CMA_PMD_PDM_QPSK调制。可以利用上传的matlab程序导入到VPI等软件中，帮助建立完整的通信系统(Procedures for communication modulation: mainly related CMA_PMD_PDM_QPSK modulation. You can take advantage of upload matlab program introduced into the VPI and other software to help build a complete communication system)

This function computes Euclidean distance transform for 3D binary image with non-trivial aspect ratio (i.e. anisotropic pixels). The algorithm uses fast optimized line-scans and is actually faster than MATLAB s BWDIST implementation of search on optimized kd-tree for many cases. It also uses cell-array representation for internal data, and thus is less demanding to physical memory.

二维求根MUSIC算法是改进的一种MUSIC算法，对于面阵的二维DOA估计的编程者有重要用途。(Dimensional root finding MUSIC algorithm improved MUSIC algorithm, programming for the two-dimensional plane array DOA estimation purposes.)

本程序主要进行两个时间序列的互相关计算。可用于信号降噪分析。(This program mainly carries out the cross correlation calculation of two time series. It can be used for signal noise reduction analysis.)

2D FFT的源代码，图形显示变换结果，关键代码有详细注释(2D FFT source code)

说明：  cma自适应恒模算法，由接受信号估计信道的自适应恒模算法(cma constant modulus adaptive algorithm, to receive signals from the adaptive channel estimate constant modulus algorithm)