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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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Engineeringmath(ebook-PDF)MatlabProgramming
关于matlab在工程方面的应用，全英文版的pdf(On matlab in engineering applications, the entire English version of the pdf)
- 2008-05-11 21:42:36下载
- 积分：1
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matlabtest9
matlab程序：
matlabtest9 是绘制不同的函数曲线；(matlab program: matlabtest9 is different mapping function curve )
- 2008-08-01 23:15:10下载
- 积分：1
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power_brushlessDCmotor
A three-phase motor rated 1 kW, 500 Vdc, 3000 rpm is fed by a six step voltage inverter. The inverter is a MOSFET bridge of the SimPowerSystems™ library. A speed regulator is used to control the DC bus voltage. The inverter gates signals are produced by decoding the Hall effect signlas of the motor. The three-phase output of the inverter are applied to the PMSM block s stator windings. The load torque applied to the machine s shaft is first set to 0 and steps to its nominal value (11 N.m) at t = 0.1 s.
Two control loops are used. The inner loop synchronises the inverter gates signals with the electromotive forces. The outer loop controls the motor s speed by varying the DC bus voltage.
- 2011-10-19 22:21:07下载
- 积分：1
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remote
remote sensing image analysis done by segmentation and classification is done finally
- 2013-12-09 13:07:51下载
- 积分：1
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COMP-programs
continues answer solution
- 2012-02-05 13:16:48下载
- 积分：1
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music1
无损检测中结合时间反转的music成像算法。通过格林函数构造传递函数，对换能器所得散射信号进行处理，对损伤位置（二次波源）进行成像。(Detection music imaging algorithm combines time-reversed lossless. Passing through Green Constructor, transducer signal processing resulting scattering of damage location (secondary wave source) for imaging.)
- 2020-08-25 20:58:14下载
- 积分：1
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RSP_Small_Target_Detection
雷达之小目标检测（隐身飞行器和武装直升机的雷达监测）(small radar target detection (stealth aircraft and armed helicopters and radar monitoring))
- 2007-01-04 14:04:47下载
- 积分：1
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temperature_measurements_with_thermocouples
This document is common informantion for hardware development to measuringer temperature with TC
- 2015-03-04 13:03:22下载
- 积分：1
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SparseLab200-Core
SparseLab is a Matlab software package designed to find sparse solutions to systems of linear equations, particularly underdetermined systems.
- 2007-08-23 16:58:18下载
- 积分：1
