CreateData

本篇文章是介绍雷达系统中脉冲压缩的有关理论，是雷达学习的重要一章(This article is to introduce the pulse compression radar system in the theory, is an important chapter of the radar study)

计算时间序列的延迟时间，有例子，一看就明白啊！(The time series‘delay time is calculated , there is an example!)

matlab应用源程序，只能采集，网络连接(matlab application source code, can collect)

完全按照论文Face Recogniton Using Eigenfaces设计的PCA源码，无解压密码(in full accordance with the thesis Face Recogniton located Using Eigenfaces PCA of source code, without extracting passwords)

求波达方向估计的MUSIC算法程序，用matlab仿真实验。(Seeking DOA estimates MUSIC algorithm matlab simulation experiment.)

基于Meanshift运动目标跟踪程序，matlab写的，绝对可以运行(Moving target tracking procedures can run)

利用Matlab生成GPS C/A 码的基带信号。 （1）产生卫星PRN 号码为“5”的一组C/A 码； （2）循环生成25 页的导航数据，GPS 时间可填入一固定的已知数值； （3）生成C/A 码扩频信号，每个C/A 码码片给出4 个采样数据； （4）基带信号采用方波信号，电平为0 和1，占空比为50 ％，不加入噪声，进一步生成某个特定的中频信号。(Matlab generated using GPS C/A code base band signal. (1) generation of satellite PRN number is " 5" a set of C/A code (2) loop generates 25 of the navigation data, GPS time can fill a fixed known value (3) to generate C/A code spread spectrum signal, each C/A code chip gives the four sampling data (4) baseband signals using square wave signal, level 0 and 1, 50 duty cycle, not to join the noise generated further a specific frequency signal.)

说明：  根据语音信号的特点给出有关滤波器的性能指标：1）低通滤波器性能指标，fp=1000Hz，fc=1200 Hz， As=100dB，Ap=1dB；2）高通滤波器性能指标，fc=2800 Hz，fp=3000 Hz As=100dB，Ap=1dB；3）带通滤波器性能指标，fp1=1200 Hz，fp2=3000 Hz，fc1=1000 Hz，fc2=3200 Hz，As=100dB，Ap=1dB。用IIR对其分析，最后，利用MATLAB中的函数freqz画出各滤波器的频率响应。(This article according to the IIR filter and the FIR filter characteristic, uses the bilinearity method of transformation under the MATLAB bad boundary to design IIR and to design the FIR numeral filter separately with the window box number, and carries on the analysis to the gathering pronunciation signal, and finally gives IIR and FIR to the pronunciation filter effect.)

LMS算法是研究最早的自适应算法，简单实用是其最主要的特点。但是仅进行一次求自适应权，还不够准确，本算法中将多次求权平均的结果与单次求的结果进行了比较！(LMS algorithm is the first study of the adaptive algorithm, meanwhile, simple and practical is its main feature. But if only seek adaptive right once,this is not accurate enough,so my algorithm take a comparison between the results of the weighted average and the results with a single seeking!)

说明：  可以实现matlab对16QAM和64QAM的星座图实现并进行误码率比较(Matlab can realize the constellation of 16QAM and 64QAM and compare the bit error rate)