1

说明：  本文在DCT噪声信号模型研究的基础上,提出了一种新的音频水印嵌入位置选择策略和一个应用该策略的自适应音频水印算法. 通过定义DCT系数的噪声敏感度,建立了水印嵌入位置和嵌入水印后的音频信号的听觉感知性之间的关系,根据音频水印的不可听性的要求选择最优的嵌入位置,然后调节水印强度来满足鲁棒性的要求,从而最大程度地保持音频水 印的不可听性和鲁棒性,为解决音频水印嵌入过程中不可听性和鲁棒性之间的矛盾提供了一种策略.(Though m any w orks in the literature agree that w aterm ark should be em bedded in the middle2fre2 quency coefficients or percep tually significant components, how to determ ine the position em bedded has no universal definition. A new em bedding strategy and an algorithm app lying the strategy are p roposed for audio w aterm arking in DCT dom ain based on research of DCT noise m odal. B y defining a noise sensitivity vector, a m ath relationship betw een the w aterm ark em beddable position and the audible quality of the audio file w ith w aterm ark is set up.)

基于matlab的数字水印防伪技术，其中能够实现数字水印嵌入与提取(Based on the matlab digital watermark anti-counterfeiting technology, which can realize the digital watermark embedding and extraction)

This file is about OFDM Channel Estimation Based on Comb Pilot.

本程序对OFDM这一调制方式的基本流程进行了仿真，通过高斯白噪声信道，接收信号解调，对比发送和接收信号波形，并画出功率谱密度图形(This program OFDM modulation scheme of this basic flow of the simulation carried out by white Gaussian noise channel, the received signal demodulation, compare sent and received signal waveforms and power spectral density plot graphics)

信道容量编码，C语言实现，照着程序一步一步做会找到你需要的(Channel capacity coding, C language, according to the program will find step by step what you need to do)

MATLAB杆系结构分析：Matlat杆系结构分析源代码,包括： 第一章 静定结构内力和位移计算程序（源程序及例题） 第二章 平面刚架矩阵位移法及静力分析程序（源程序及例题） 第三章 平面刚架静力分析程序的改进（源程序及例题） 第四章 空间刚架静力分析及程序设计（源程序及例题） 第五章 刚架动力特性分析及程序设计（源程序及例题）(MATLAB Frame Structure Analysis: Matlat truss structure of the source code, including: Chapter Static Finite element analysis computer program (source code and examples) Chapter plane frame matrix displacement method, and static analysis of programs (source and Example) Chapter static analysis of plane frame process improvement (source code and examples) Chapter IV space frame static analysis and program design (source code and examples) Chapter Frame Dynamic analysis and program design (the source procedures and examples))

matlab绘图初级入门讲义，十分有用。可以看看(matlab drawing primary entry notes, very useful. Can look at the)

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.)

基本人工鱼群算法程序，matlab代码，非常完整，有注释(AFSA programm is with matlab,which is very good )

用matlab编写的求解武器目标分配的遗传算法程序(Using matlab to solve the distribution of weapons and target the genetic algorithm)