X-CT

This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. (This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. )

In this paper, we investigate the timing and carrier frequency offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels. A training sequence which consists of one orthogonal frequency-division multiplexing (OFDM) block having a tile structure in the frequency domain is proposed to perform synchronization. Timing offsets are estimated using correlation-type algorithms. By inserting some null subcarriers in the proposed tile structure, we propose a computationally efficient subspace decomposition- based algorithm for CFO estimation. The issue of optimal tile length is studied both theoretically and through simulations. By judiciously designing the tile size of the pilot, the proposed algorithms are shown to have better performance, in terms of synchronization errors and bit error rate, than the time-division multiplexing-based training method and the computationally demanding space-alternating generalized expectation-maximization

linear discriminan analysis code by matlab

Bluepilling the Xen Hypervisor Joanna Rutkowska & Alexander Tereshkin Invisible Things Lab

matlab经典教材，从入门到精通，大家都在用(matlab classic textbook, from entry to the master, everyone with)

一种用于无互连线逆变器并联的多环控制方法 针对传统逆变器无线并联系统稳态均流精度低和动态响应差等缺点，提出基于传统无 线并联下垂法的新型多环控制结构，分析了逆变器并联系统有功和无功功率的环流模型。( In this paper, a novel control scheme is presented, which is able to improve the transient response and power sharing accuracy of parallel-connected inverters with no control interconnections, and the active and reactive circulating current of the parallel system model are analyzed. A multiple-loop controller is developed based on the traditional droop method. )

Driver template 32 and 64 bit, Visual studio 2008-2010

1.matlab实现三种语音处理，有界面 2.C语言实现MFCC 3.报告说明文档 ( 1.Matlab shíxiàn sān zhǒng yǔyīn chǔlǐ, yǒu jièmiàn 2.C yǔyán shíxiàn MFCC 3. Bàogào shuōmíng wéndàng 1.matlab achieve three voice processing, interface 2.C language MFCC 3 report documentation)

使用matlab下载网站上的文件使用urlwrite函数下载网站上的文件特别适用于批量下载同类型的文件Created使用urlwrite实现批量下载以下载2011美赛数模证书为例 (Using matlab download site to download a file using the urlwrite function files on the Web site especially for bulk download Created using the same type of file to download the bulk download urlwrite achieve 2011 certification as an example the U.S. digital-analog match)

一个用于预测石油污染物降解率的SVR程序，模型参数采用PSO算法优化选择。供大家参考！(a SVR model for prediction of oil degradation rate. Model s parameters was optimized by PSO algorithm.)