chap6_3

说明：  此程序为DS-CDMA链路中加入基于子空间的PAST多用户检测方法。系统中采用m序列阔频，可以通过高斯信道或瑞利信道。可以直接运行得到不同信噪比下的误码率曲线。(This procedure for the DS-CDMA link by adding the PAST subspace-based multi-user detection methods. System m sequence used in wide-band, you can channel through the Gaussian or Rayleigh channel. Can be directly run different SNR BER curves.)

分别用解析法和数值法求出并画出信号的幅度谱，并比较它们的结果。(Fourier Transform.)

《Learning Perl Objects References And Modules》英文版，详细介绍了perl语言中的对象引用和模块，是一本深入了解perl语言的好书。("Learning Perl Objects References And Mod ules, "the English version, detailing the perl language and the object reference module, is a deeper understanding of the perl language books.)

说明：  在matlab中实现巴特沃斯低通滤波器as=70 Fs=15000 Fp=9000 (butterworth lowpass filter as=70 Fs=15000 Fp=9000 )

Convert from LAB to display RGB.

对信号分别无失真频率和失真频率带通采样得到采样后的频谱图(Signal distortion frequencies and distortion frequency bandpass sampling frequency spectrum after sampling)

FilterTitleOverlay字幕叠加的filter(FilterTitleOverlay subtitles superimposed filter)

说明：  Newman快速算法的matlab源代码(Matlab Source Code for Newman Fast Algorithms)

说明：  matalb的原代码主要用圆管的分析，应该有实用价值。(Dimensional analysis and scaling ：Dimensional analysis is a tool based on the observations )

Lucas – Kanade Motion Estimation using Pyramids (视频,运动估计)(Lucas-Kanade Motion Estimation using harvested amids (video, motion estimation))