foa

写一个MATLAB程序，实现4个时间同步的CDMA用户的仿真，其中每个用户都使用长度为L=31的不同的Gold序列。每个用户都采用它们代表的Gold序列的二进制（+-1）调制。每个用户的接收端将这个复合的CDMA接收信号相关，而这个复合的信号都在它们各自的序列上受到AWGN的污损（基于按码片相加）。在N=10000信息比特下，仿真估值并画出作为SNR的函数的CDMA通信系统的差错概率。(Write a MATLAB program, the realization of the four time synchronization of the simulation of CDMA users, including the length of each user for use of the L = 31 different Gold sequences. They are used for each user on behalf of the Gold sequence of binary (+-1) modulation. Each user' s receiver will receive the composite CDMA signal, and this composite signal in the sequence of their respective defaced by the AWGN (additive based on the chip by). Information in the N = 10000 bits, the simulation value and draw as a function of SNR of the CDMA communication system the probability of error.)

该算法为fastica的c＋＋版版本，有很好的分离效果。 (The algorithm for the fastica the c++ Version, good separation.)

PC parallel LPT port pinout

Matlab program of a coupling coefficient in a step index fiber coupler for variation of separation of fiber axis

HiperLAN/2 reference model. 16QAM mode with 3/4 code rate (4/6 P2 puncturing rate). (HiperLAN/2 reference model. 16QAM mode with 3/4 code rate (4/6 P2 puncturing rate).)

matlab6.5用户手册 英文原版教程(matlab6.5 English original Tutorial User Manual)

岩石物理模型，Hashtrickman 上界与下界，可以求得不同组成物质的弹性模量的上下界。(rock physics model, using the Hashin-Shtrickman model which can calculate the upper and lower elastic preperties for a rock .)

TOPS alg method for linear array

说明：  计算常用指标Gmean,F-score,sensitivity,specificity,precision,roc和auc曲线，输入test_label,predict_label两个列向量，即可获得以上指标(calculate some indexes)

this file is about filter design