mmse_QPSK_rayleigh_channel

说明：  这是一个基于累计量的独立分量分析改进算法的源程序(This is a cumulant-based independent component analysis algorithm source code)

本文算法是将24 位真彩图的亮度分量分块 DCT ,然后利用DCT 量化系数的奇偶特性嵌入8 位灰度水印图,并通过PN 序列加密来保证水印的 安全性。算法中,将灰度图像转换为二进制数据 流,置乱后扩频调制,隐藏在宿主DCT 系数量化值 中,提取时不需要宿主信号,实现水印信号的盲提 取。(This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantization DCT coefficients and then use the parity properties of 8-bit grayscale watermark embedding map, and through the PN sequence of encryption to ensure the security of the watermark. Algorithm, the gray image into binary data stream, scrambling after the spread spectrum modulation, hidden in the host DCT coefficient quantization values, the extraction does not require the host signal, the blind watermark extraction.)

说明：  一维等离子体FDTD的Matlab源代码，是时域有限差分算法中的重要算法(One-dimensional FDTD the Matlab source code for plasma, FDTD method is an important algorithm in)

说明：  tytret for i am hasve to make these code it is very useful matlab code for induction motor simulation

A 4 bit twisted ring counter is a sequential circuit which produces the following sequence of output values: 0000, 1000, 1100, 1110, 1111, 0111, 0011, 0001 and then repeats. Design a circuit for a 4 bit twisted ring counter that uses four D flip flops. Draw a state transition diagram, a state table and a schematic for your circuit. Design an alternate implementation using just three flip flops and draw a state transition diagram, state table and a schematic for your circuit. If your designs are extended to implement an n bit twisted ring counter, how many flip flops are required using each of the two approaches. In what situations would you prefer the first method? In what situations would you prefer the second?

Simulink linear pll

利用卫星观测文件和导航文件进行单点定位，德国导航文件官网提供，程序很精炼(Using satellite observation files and navigation files for single point positioning)

粒子群优化算法。PID控制器的整定，matlab源码。(Tunning of PID controller using Particle Swarm Optimization Author: Wael Mansour (wael192@yahoo.com) MSc Student, Electrical Enginering Dept, Faculty of Engineering Cairo University, Egypt)

In statistical mechanics and mathematics, a Boltzmann distribution (also called Gibbs distribution) is a probability distribution, probability measure, or frequency

CDMA通过gold7和gold31来进行编码。并比较不同编码下的CDMA的性能(cdma performance via different length of gold encode )