signal

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. )

此程序实现构造Daubechies小波基(this program structure Daubechies wavelet)

This document describes the CDMA AT command, its syntax, its responses, and result codes. It serves as the reference for wireless application development based on the CDMA modem and for its integration and testing. The intended audience is expected to be familiar with CDMA data services protocol and AT modem commands. This document is also intended for use in the North American market. SIM/R-UIM and its related AT commands are not documented here.

Chaos in a fractional order Chua s system

说明：  运用matlab求解hilbert谱，以及边际谱。(Use matlab to solve Hilbert spectrum and marginal spectrum.)

MATLAB是美国MathWorks公司推出的一种可视化的科学计算软件，目前在国内外比较流行(MathWorks MATLAB is a US company launched a visualization in scientific computing software, the more popular at home and abroad)

说明：  matlab中模糊控制实例：小费系统计算源代码(The example of fuzzy control in MATLAB system)

论文的程序，与大家分享 应用混沌序列对水印信息进行置乱源代码 (Thesis process, and application of chaotic sequences to share information on scrambling watermark source code)

file start12 zip file for coding in code warrior assembly language.

说明：  Matlab Simulink仿真程序，用来实现光伏电池的能量管理。(Matlab Simulink simulation program is used to realize the energy management of photovoltaic cells.)