socefficient2

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. )

上传个东西太费劲了 用MATLAB写的一段相差程序(about optical abrration )

STM8306 - Dual E nhancement Mode Field E ffect Transistor ( N and P Channel)

对于自控原理中状态反馈的研究，其中包括了matlab的代码，还有仿真结果(For the self-control theory of state feedback in)

说明：  该源码是用simulink对QAM的仿真实现(the source is used Simulink right QAM Simulation)

matlap for the function

已经经过测试，实现CMA盲均衡的功能，对学习还是很有帮助的(Has been tested, CMA blind equalization function, learning or helpful)

MATLAB30个案例配套的例子，便于学习。(Examples of MATLAB30 cases are easy to learn.)

LDA学习用到的算法，不是自己写，别人的，拿来学习用(LDA learning algorithm is used, not her own writing, others, used to learn)

是基于四阶累积量的旋转不变因子ESPRIT算法，在matlab环境下实现(Is based on the cumulative amount of rotation of fourth-order constant factor ESPRIT algorithm in matlab environment to achieve)