DSSS

to understand the Algorithm go to matlab help in page dct2 and idct2 to get the mathematical expression for M = N = 8, we can calculate the most of hard values and save it as LUTs to speed up the execution now compare our special 8X8 functions with the internal general functions use this code: A = int32(100*rand(8,8)) tic for i = 1 : 1000 IDCT_8X8(DCT_8X8(A)) end toc tic for i = 1 : 1000 idct2(dct2(A)) end toc i had built the general functions too, but with low speed (to understand the Algorithm go to matlab help in page dct2 and idct2 to get the mathematical expressionfor M = N = 8, we can calculate the most of hard values and save it as LUTs to speed up the executionnow compare our special 8X8 functions with the internal general functionsuse this code: A = int32 (100* rand (8,8)) tic for i = 1: 1000 IDCT_8X8 (DCT_8X8 (A)) end toc tic for i = 1: 1000 idct2 (dct2 (A)) end toc i had built the general functions too, but with low speed)

本程序由经典９９行拓扑优化程序改编，可以反向进行反向夹持器的拓扑优化( A 105 LINE TOPOLOGY OPTIMIZATION CODE BY OLE SIGMUND, JANUARY 2002 This example is selected from the document of "on the design of compliant mecanisms using topology optimization" Note the input displacement is specified as 5e-3mm here )

分析了MATLAB/Simulink 中DSP Builder 模块库在FPGA 设计中优点， 然后结合FSK 信号的产生原理，给出了如何利用DSP Builder 模块库建立FSK 信号发生器模 型，以及对FSK 信号发生器模型进行算法级仿真和生成VHDL 语言的方法，并在modelsim 中对FSK 信号发生器进行RTL 级仿真，最后介绍了在FPGA 芯片中实现FSK 信号发生器的设 计方法。(Analysis of the MATLAB/Simulink in DSP Builder Blockset in the FPGA design advantages, and then combined with the emergence of the principle of FSK signal is given how to use DSP Builder Blockset establish FSK signal generator model, as well as the FSK signal generator model algorithm class VHDL simulation and generation language approach, and in ModelSim for FSK signal generator for RTL-level simulation, and finally introduce the FPGA chip realize FSK signal generator design method.)

matlab 实现的最大中值滤波，数字图形处理实验(matlab implementation of median filter, digital graphics experimental)

功率控制算法，对做cdma研究的用户很有帮助。(power control algorithm, the research done cdma users helpful.)

说明：  MATLAB神经网络应用设计:书中实例源程序！ 方便大家学习！(Application of MATLAB neural network design: example of source book! To facilitate learning!)

说明：  Here is an AGC code for seismic data

face recognition program using eigenface approach and euclidean distance method.

说明：  HDB3码的编码，图形，功率谱密度。用于通信原理教学等(Code HDB3 coding, graphics, power spectral density. Communication Theory for teaching)

matlab 的拟牛顿方法，减少计算导数带来的计算量的一种迭代方法，用来计算非线性问题。(matlab quasi-Newton methods to reduce the computational calculation of the amount of the derivative of an iterative method to calculate the nonlinear problem.)