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对于单种群进化，多方式进化是提高全局搜索能力和收敛速度的一种有效策略。(For the single-population evolution, multi-way evolution is to improve the global search ability and convergence speed of an effective strategy.)

DIRECTION OF ARRIVAL VIA MUSIC ALGORITHM

DCT and Image Compression In the JPEG image compression algorithm, the input image is divided into 8-by-8 or 16-by-16 blocks, and the two-dimensional DCT is computed for each block. The DCT coefficients are then quantized, coded, and transmitted. The JPEG receiver (or JPEG file reader) decodes the quantized DCT coefficients, computes the inverse two-dimensional DCT of each block, and then puts the blocks back together into a single image. For typical images, many of the DCT coefficients have values close to zero these coefficients can be discarded without seriously affecting the quality of the reconstructed image. The example code below computes the two-dimensional DCT of 8-by-8 blocks in the input image, discards (sets to zero) all but 10 of the 64 DCT coefficients in each block, and then reconstructs the image using the two-dimensional inverse DCT of each block. The transform matrix computation method is used.

说明：  杂波模型，可用于雷达信号处理中，其中模型为瑞利分布(Clutter model can be used for radar signal processing, which for the Rayleigh distribution model)

WSN 质心定位算法 Centorid Algorithm 加经典参考文献 A: 如果接受节点接收到的包数目与发送节点发送的包数目的比值大于CM_threshold,则这两个节点视为邻居节点 未知节点利用邻居锚节点进行定位，没有邻居锚节点的未知节点无法定位。 B: 如果接受节点接收到的包数目与发送节点发送的包数目的比值大于CM_threshold,则这两个节点视为邻居节点 未知节点一旦被定位就充当起锚节点的功能，向周围邻居发送自己的估计坐标信息 未知节点把已经定位的未知节点与锚节点同等对待 C: 如果接受节点接收到的包数目与发送节点发送的包数目的比值大于CM_threshold,则这两个节点视为邻居节点 有邻居锚节点的未知节点只利用邻居锚节点进行定位，没有邻居锚节点的未知节点才利用已经定位了的邻居未知节点进行定位。(WSN centroid localization algorithm Centorid Algorithm A: If you accept the received packet node number and the number of packets sent by the sending node ratio greater than CM_threshold, then these two nodes as neighbors Unknown node using the neighbor anchor nodes to locate, no neighbors anchor nodes and unknown nodes can not be located. B:   If you accept the received packet node number and the number of packets sent by the sending node ratio greater than CM_threshold, then these two nodes as neighbors Unknown nodes are positioned on as soon as the function of anchor nodes to send their neighbors estimated coordinate information Unknown unknown node to node already positioned anchor nodes treated equally C: If you accept the received packet node number and the number of packets sent by the sending node ratio greater than CM_threshold, then these two nodes as neighbors Of the unknown neighbor anchor node the neighbor nodes are only positioned anchor nodes, )

东南大学的《结构模态分析及其损伤诊断》，系统地介绍了结构模态信号处理的算法，是模态信号处理编程和学习的必备选择。(" Modal Analysis and Damage Diagnosis" Southeast University, introduced the algorithm modal signal processing, signal processing modal learning programming and necessary choice.)

抑制载波单边带simulink程序，进行频谱计算研究，分析信号特征。(Sideband suppressed carrier simulink program, Calculation of spectral analysis of the signal characteristics.)

概括了数模的几乎所有的经典算法，是建模必备的资料之一(Summarizes the number of modules in almost all of the classical algorithm, is one of modeling the information necessary )

某型飞机机翼在风洞中测得的翼型自噪声数据，可用于多输入单输出的神经网络建模。(A certain type of aircraft wings in the wind tunnel measured airfoil self-noise data, can be used for multi-input single-output neural network modeling.)

here a file to computee fourier tranform of an image