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The circular convolution, also known as cyclic convolution, of two aperiodic functions (i.e. Schwartz functions) occurs when one of them is convolved in the normal way with a periodic summation of the other function.

说明：  这个文件主要用于FDTD运算方面，简单方便。(This file is mainly used for Matlab FDTD calculation, which is very simple.)

逆合成孔径雷达发射信号，通过对观测目标反射的回波进行数据处理，分离出目标的图像信息，从而对目标进行成像( ON划词翻译ON实时翻译 Inverse synthetic aperture radar transmitted signal, data processing by the reflection observation of target echo, separating the image information of the target, so as to image the target)

this is about digital modulation techniques used in matlab

Adaptive genetic algorithm

说明：  matlab仿真的蓝牙调频通信系统，对用matlab进行通信仿真的开发人员非常有用(matlab simulation of Bluetooth FM communication systems to communicate with the matlab simulation is very useful for developers)

Pyramid.zip包含 1、pyramid.fig界面 2、高斯金字塔通过GPReduce.m函数实现 拉普拉斯金字塔由GPExpand.m函数实现 3、用imshow()显示拉普拉斯金字塔时，如果图像矩阵数据类型为double，会显示为彩色；而通过uint8()将类型强制转换为8位无符号整数，图像显示就为黑白了。 4、采用256*256的lena彩色图像(Pyramid.zip coantain 1、pyramid.fig interface 2、implemented by GPReduce.m and GPExpand.m 3、use 256*256 lena color picture)

this function calculate Hisao Causality relation between X and Y and define their unit root situation by ADF method.

分析相位耦合的两个算例，分别利用了双谱和双相干系数法(Analysis of phase coupling of two examples, namely the use of a dual spectrum and bicoherence France)

理论知识是用来指导具体实践的。本文在深刻理解通信系统理论的基础上利用 MATLAB 强大的仿真功能，设计了许多具体的通信系统仿真模型。在仿真模型设计过程中，本文对模型设计的目的、具体的结构组成、仿真流程以及仿真结果都给出了具体详实的分析和说明。(Theoretical knowledge is used to guide the specific practice. In this paper, a deep understanding of the theory of communication systems using MATLAB based on the powerful simulation function, the design of a number of specific communication system simulation model. In the simulation model of the design process, this article is designed on the model, the specific structural components, simulation and flow simulation results are given specific and detailed analysis and description.)