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jpeg2000
用matlab实现jpeg2000编解码，包括小波变换、huffman编码等，适合初学者(Jpeg2000 codec, including wavelet transform, huffman coding using matlab for beginners)
- 2013-03-03 14:32:25下载
- 积分：1
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lpc
详尽的LPC编码解码算法，基于matlab，适合学习LPC算法。(Detailed LPC codec algorithm, based on matlab, LPC algorithm for learning.)
- 2011-10-31 13:41:54下载
- 积分：1
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32psk
32进制PSK仿真子程序,子程序计算4进制PSK调制的误码率(32 M-ary PSK simulation subprogram, subprogram 4 M-ary PSK modulation calculation of the bit error rate)
- 2009-06-08 22:23:00下载
- 积分：1
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JPEGimageCompressiontechniquesimplementationandopt
摘 要
文章以空间监控系统为背景,深入研究了JPEG图像压缩标准的实现方法,并基于FPGA对其进行了实现和优化。文中给出了详细的实现方法和优化过程,测试表明达到了很好的效果。
简单介绍了有损静态图像压缩当前有两种比较流行的标准JPEG和JPEG2000。说明了用JPEG方法压缩的原因。
介绍JPEG基本原理：JPEG对灰度图像的压缩处理过程主要包括:图像分割,离散余弦变换(DCT),量化(Quantization),“Z”形排序(Zigzag Scan),差分脉冲编码调制(Differential Pulse Code Modulation,DPCM)对直流系数(DC),行程长度编码(Run-Length Encoding,RLE)对交流系数(AC),霍夫曼(Huffman)编码等。
JPEG标准的特点是离散余弦变换。
比较详细介绍压缩系统的构成和实现。实现提及步骤， JPEG压缩模块设计和编码模块实现细节。
(Abstract
Article in the space monitoring system for the background, in-depth study of the JPEG image compression standard implementation methods and carried out based on FPGA implementation and optimization. In this paper, a detailed method of implementation and optimization of the process, testing showed that to achieve good results.
Easy introduction of harmful static image compression has two kinds of comparisons that the current popular standard JPEG and JPEG2000. Illustrated by the reasons for JPEG compression method.
JPEG introduce the basic principles: JPEG compression of gray-scale image processing include: image segmentation, discrete cosine transform (DCT), quantization (Quantization), "Z"-shaped sort (Zigzag Scan), differential pulse code modulation (Differential Pulse Code Modulation, DPCM) on the DC coefficient (DC), Run Length Encoding (Run-Length Encoding, RLE) of the exchange coefficient (AC), Hoffman (Huffman) coding.
JPEG standard is characterized by discrete )
- 2009-03-29 08:39:04下载
- 积分：1
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waveguide_example
计算圆波导的TE/TM传播问题的matlab源程序(matlab code for the simulation of circul waveguide)
- 2010-09-27 21:50:23下载
- 积分：1
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gauss
说明： 高斯消去法 用列主元求解AX=b
数值计算实习 例子(Gaussian elimination)
- 2011-02-27 22:39:21下载
- 积分：1
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Matlab-7---Programming
Matlab 7 - Programming(Matlab 7- Programming)
- 2012-03-26 13:04:09下载
- 积分：1
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machine-synchrone
dynamic model of synchrones machine
- 2014-12-03 21:32:14下载
- 积分：1
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gawywwzm
仿真效率很高的，包含特征值与特征向量的提取、训练样本以及最后的识别，直线阵采用切比学夫加权控制主旁瓣比，包括广义互相关函数GCC时延估计，含噪脉冲信号进行相关检测。(High simulation efficiency, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Linear array using cut than learning laid upon the right control of the main sidelobe ratio, Including the generalized cross-correlation function GCC time delay estimation, Noisy pulse correlation detection signal.)
- 2016-03-24 21:34:47下载
- 积分：1
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aline_CBF
说明： 通过16个接收水听器组成线列阵，分别给出各个阵元接收信号，可实现 时域、频域等信号到达角判别(A linear array composed of 16 receiving hydrophones can be used to distinguish the angle of arrival of signals.)
- 2021-01-30 17:28:40下载
- 积分：1
