bangbai

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. )

该文件详细介绍了MATLAB进行矩阵的各种运算，内容丰富，浅显易懂(For matrix operation with MATLAB)

用普鲁尼谱估计法进行功率谱估计，程序运行良好(Diop rooney spectrum estimation)

数字图像处理姚敏版第六章彩色图像所有例子的完整matlab代码 可以正确运行(Yao Min version of digital image processing color images all the examples of Chapter VI of the complete matlab code can be correctly)

计算阶跃响应相关指标，包括超调量、上升时间、调整时间、稳态误差等，计算效果很好。( Calculate the step response-related indicators, including the overshoot, rise time, settling time, steady-state error, etc., is calculated with good results.)

analogue model of full bridge rectifer, for high validating pfc

fft与ifft系列程序，用于图像的滤波算法，信息提取。使用matlab环境，易用性强。 (fft and ifft program, matlab environment, easy to use.)

说明：  微电网并网及其控制策略研究，运用PQ控制策略进行能量的分配(Research on Grid-connected Microgrid and Its Control Strategy)

当前统计模型机动目标跟踪算法。本程序对做圆周运动的机动目标的X方向进行了跟踪仿真。(Current statistical model for maneuvering target tracking algorithm. This procedure for doing circular motion of the X direction of maneuvering target tracking simulation carried out.)

MATLAB code for trajectory smoothing and curvature calculation.