interpretation

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. )

基于Matlab的PID参数最优化设计(fminsearch单纯形法)(Matlab-based design of PID parameter optimization (fminsearch simplex method))

无线传感器网络连通问题 其中点的测试matlab程序(Wireless sensor network connectivity issues which point the test matlab program)

OFDM系统自适应算法仿真，MATLAB程序 (Adaptive Algorithm for OFDM systems, MATLAB program)

This program is DOA estimation by using beamformer method.

m序列PTS方法: “mSeqPTS_Papr_V8.m”，m序列PTS方法(V=8)PAPR的互补累积分布函数(CCDF)曲线； “PTSV8_Mseq_sspa.m”， m序列PTS方法(V=8) 经过SSPA放大器后OFDM系统误码性能曲线。 (A way to reduce the high PAPR of OFDM system-PTS)

电力电子环流SIMULINK模型 Notice that the Thyristor blocks have an output identified by the letter m. This output returns a Simulink vectorized signal containing the thyristor current (Iak) and voltage (Vak). (SIMULINK model of power electronic circulation Notice that the Thyristor blocks have an output identified by the letter m. This output returns a Simulink vectorized signal containing the thyristor current (Iak) and voltage (Vak).)

Ant Colony optimization solving sales man problem

k-means算法对irisdata数据集进行聚类(The k-means algorithm clustering the irisdata datasets)

基于matlab的qpsk调制模块，可以调用随机数列进行调制，根据需要设置进制数(Qpsk modulation based on the matlab module, you can call out random numbers to carry out modulation, according to the need for M-ary number)