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jpeg2avihojoon
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.
)
- 2009-09-17 13:05:51下载
- 积分:1
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ofdm
用MATLAB实现OFDM调制、解调,这样调用模块,其中假设OFDM信号包含6个。(Using MATLAB OFDM modulation, demodulation, so that the calling module, which assume that the OFDM signal consists of six.)
- 2012-04-24 19:00:31下载
- 积分:1
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Beam-space-MUSIC-algorithm
波束空间的MUSIC算法,在阵元误差校正和DOA估计时很实用~~(Beam space MUSIC algorithm, the array element error correction and DOA estimates very practical ~ ~)
- 2013-11-02 00:06:15下载
- 积分:1
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Pysichal-optics
基于高频电磁散射的物理光学法用于计算散射目标的RCS
(Based on high-frequency electromagnetic scattering of the physical optics method used to calculate the scattering target RCS)
- 2020-12-03 11:19:25下载
- 积分:1
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gray
利用matlab来实现数据的灰色建模和预测,具有较好的功能。(Using matlab to the gray data modeling and forecasting, with good function.)
- 2010-12-19 14:41:20下载
- 积分:1
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ZW
说明: 约束优化进化算法,采用多目标优化算法的思想求解约束优化问题(constrained optimization evolutionary algorithms)
- 2011-01-05 15:30:17下载
- 积分:1
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least-squares
数值分析中基于Matlab环境下的关于最小二乘的源代码(Numerical analysis environment based on Matlab source code on least-squares)
- 2011-06-17 08:41:56下载
- 积分:1
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phy1
TD-HSPA+ 物理层的链路级仿真程序(TD-HSPA+ physical layer link level simulation program)
- 2012-06-07 16:49:55下载
- 积分:1
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LMS
The MATLAB simulation for Least Mean Square (LMS)and LMS equilizer.
- 2011-12-20 17:03:01下载
- 积分:1
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Mature_image_4
It is helpful in classifying the maturity stage of cotton.
- 2013-11-24 17:14:32下载
- 积分:1