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huffmanqi
本程序不能编译除大小写字母之外的编码
本程序需事先建立字母权值文后件才可运行
本程序从文件中读入文字，编译后写入文件，所以屏幕上不会直接出现答案(not build this program in addition to case-insensitive outside of the coding process required prior to the establishment of the letters after the value of the text pieces can Win OK this program read from the file into the text, compiled into the paper, not directly on the screen appeared the answer)
- 2006-11-08 11:58:41下载
- 积分：1
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IEEE80211a
The 802.11 standard specifies a carrier sense multiple access with collision avoidance(CSMA/CA) protocol. In this protocol, when a node receives a packet to be transmitted, it first listens to ensure no other node is transmitting. If the channel is clear, it then transmits the packet. Otherwise, it chooses a random "backoff factor" which determines the amount of time the node must wait until it is allowed to transmit its packet. During periods in which the channel is clear, the transmitting node decrements its backoff counter.
- 2011-11-23 06:38:05下载
- 积分：1
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VQ_Audio_Matlab
一些失量量化码书设计的方法总结，包含全面，用matlab编程的(Some loss of quantization codebook design methods are summarized, including comprehensive programming using matlab)
- 2015-04-13 12:35:42下载
- 积分：1
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dwprotected
Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document.
A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.
- 2009-07-13 12:14:31下载
- 积分：1
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3
说明： code of pendulum using pdi controller
- 2010-04-13 23:52:53下载
- 积分：1
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ka_zhuliu_sita
利用基尔霍夫（KA）驻留相位近似求解粗糙面散射系数(Use the Kirchhoff (KA) stationary phase approximation solution of rough surface scattering coefficient)
- 2014-11-27 11:31:44下载
- 积分：1
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5G非正交多址技术SCMA仿真scma
说明： 5G非正交多址技术SCMA仿真(包含编译码代码，直接运行simulation.m即可)(5G Compiling Code Simulation SCMA Non-orthogonal Multiplexing Technology)
- 2021-03-04 20:49:32下载
- 积分：1
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modified_LSB
对LSB替代法进行的改进，比LSB替代法得到的图像质量更好。(LSB substitution method for the improvement of substitution than the LSB get better picture quality.)
- 2021-03-11 22:59:26下载
- 积分：1
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Single-neuron-adaptive-pid
自适应神经元PID算法，此算法经过仿真验证过，好用。(Adaptive neuron PID algorithm, this algorithm through simulation, works.)
- 2015-01-18 11:52:24下载
- 积分：1
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wmk_2d
说明： 在二维 RGB 图像中嵌入水印，其中图像的大小和水印图像的大小可以不一致(2D RGB images embedded watermark, which images the size and the size of the watermark image can be inconsistent)
- 2006-05-16 18:08:10下载
- 积分：1
