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说明：  Radar Systems Analysis and Design Using MATLAB 的pdf 及其代码(the pdf and code of the book Radar Systems Analysis and Design Using MATLAB)

实现了人工蜂群算法（ABC），并使用算法对几个经典的测试函数进行计算，获得了理想的结果(Artificial bee colony algorithm (ABC), and using the algorithm on several classic test function is calculated to obtain the desired results)

介绍了数字通信中的QPSK调制解调的原理，通过用Matlab编写脚本程序对QPSK通信系统的发射和接收过程的具体实现进行模拟仿真，绘出信号在理想信道和加噪信道中模拟传输时的时域图，并对各模块进行了频谱分析，所得到的结果与 理论基本相符，对于理解QPSK系统的性能并在系统的实际应用上作进一步的设计，提供了有效的参考依据。 (The introduction was done with the principle of the QPSK modulation and demodulation in digital communications，a script was written by using Matlab program to CalTy out a simulation of the QPSK communication system．which contains the concrete realization of transmit and receive process．The time-domain diagram is drew separately when the signal transmits in the ideal channel and in the channel with noise，spectral analysis of each module is also done，the results obtained with theoretical results in the main，which provides an effective frame of reference for understanding the performance of QPSK systems，and the practical application in the system to make further designed．)

二阶全通滤波器，实现相位矫正二阶.全通滤波器，实现相位矫正.二阶全通滤波器，实现相位矫正(Second order all-pass filter and realize the phase correction)

OFDM通信系统的仿真。PDF文件，包括OFDM原理、程序讲解及运行结果。-OFDM communications system simulation. PDF documents, including OFDM principles, procedures and operations on the results. (OFDM communication system simulation. PDF documents, including OFDM principles, procedures and operational results to explain.-OFDM communications system simulation. PDF documents, including OFDM principles, procedures and operations on the results.)

在信道不完美估计状况下，空频分组码在ofdm系统中的性能分析(in Channel estimates situation is not perfect, the air Frequency Block in OFDM System Performance Analysis)

matlab工具包4.0,用以进行潮流计算及最优潮流的源代码。(matlab tools package)

signal modulation it is good for you

该文件是现代信号处理课程中用到的关于小波处理的一些M文件(This file is used in modern signal processing course some documents on wavelet processing M)

北工大matlab电子课件，陆续还有好多，很全的，希望大家下个痛快(err)