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jpeg_encode+decoderhojoon
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 13:07:04下载
- 积分:1
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epsk
epsk调制,用MATLAB实现EPSK调制。(epsk modulation, modulation EPSK use MATLAB to achieve.)
- 2009-04-28 19:32:31下载
- 积分:1
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fulile
对信号进行傅里叶变换的程序,附带实验报告,有兴趣的同学可以下载(Fourier transform of the signal process, with lab reports, students who are interested can download)
- 2011-05-08 17:10:31下载
- 积分:1
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YAMLMatlab
Imports YAML into matlab
- 2012-04-02 08:08:36下载
- 积分:1
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sun_DQ
单相并网逆变器仿真,实现了单相逆变器并网(Single-phase grid-connected inverter simulation,Achieve a single-phase inverter grid)
- 2011-12-08 15:34:49下载
- 积分:1
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QPSK_receiver
QPSK软件接收机,对QPSK整个接收过程进行仿真,包括载频捕获、相位跟踪、滤波、判决等。(QPSK software receiver for receiving QPSK whole process simulation, including the carrier frequency acquisition, phase tracking, filtering, and other judgments.)
- 2021-04-09 04:29:00下载
- 积分:1
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Speech_encoding_lab
一个分析语音的maple程序,检测声音的频率。老师上课的实验。(sample code of SPECCH ENCODING)
- 2010-12-01 21:38:36下载
- 积分:1
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ARFilter
说明: AR滤波器的标准程序,非常好用,可以试验下(AR filter is standard procedure, very easy to use, you can test under)
- 2021-04-15 21:38:54下载
- 积分:1
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Rocket-Launch
Basic rocket launch simulation in Matlab.
- 2013-01-28 21:32:36下载
- 积分:1
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BCH-PZ-decoder
HI MATLAB CODE FOR BCH AND TURBO
- 2013-03-23 16:03:48下载
- 积分:1