question2

说明：  有关matlab r2007的实用教程，共十章，从基础学起(Matlab r2007 relevant practical tutorial, a total of ten chapters, starting from basic science)

本程序仿真了AWGN信道下，采用DS扩频对bpsk信号的影响，扩频码采用walsh码，扩频因子16； 接收端进行rake接收，然后分集合并，比较了三种分集方式对误码率的影响 从图像可以看出在扩频因子较高的情况下，最大比值合并与等增益合并性能相近(This program simulates the AWGN channel, using DS spread spectrum signal for bpsk influence spreading code using walsh code spreading factor 16 Rake receiver receiving end, and diversity combining, diversity compares three methods on the bit error rate of As can be seen from the image in the case of higher spreading factor, the maximum ratio combining and equal gain combining similar performance)

分别给出了带卷积吗，卷积吗-RS吗，RS吗的系统误码率仿真程序( )

K-均值聚类算法程序，数据挖掘中比较经典的一种聚类算法。。。(K-means clustering algorithm procedures)

This simulation file has been made in matlab simulink software and describes the bldc sensored motor.

exercise 4 for icarnegie ssd4

Nonsubsampled contourlet transform

OFDM DATA GENERATION

计算亚波长光栅衍射效率,PBS,即偏振光分离(calculate subwave grating diffraction efficiency)

用matlab编程实现数字传输码型的仿真，包括单双极性归零，不归零，HDB3等(Digital transmission code simulation using matlab programming, including single and double polarity zero, not zero, HDB3, etc.)