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xx
说明： 现代通信系统(MATLAB版)(第二版)代码(Modern communication systems (MATLAB version) (Second Edition) code)
- 2011-08-13 20:50:29下载
- 积分：1
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matlab02_Matrix
数学软件Matlab 学习资料（大学课件）(The Matlab software learning materials (courseware))
- 2013-03-14 02:41:42下载
- 积分：1
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DFIGpwm
DFIG model for wind turbine
- 2011-07-06 19:35:24下载
- 积分：1
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Grid-method-with-the-lingo
网格法与lingo,内含例子及多个matlab代码(Grid method with the lingo, containing examples matlab code)
- 2013-03-11 15:25:55下载
- 积分：1
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DSS
A DISCRETE SPREAD SPECTRUM CODE WRITTEN IN MATLAB
- 2012-08-16 21:57:14下载
- 积分：1
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communication
MATLAB产生BPSK信号和FM信号。包括信号的成形滤波，频谱分析和功率谱分析(MATLAB generated BPSK signal and FM signals. Signal shaping filtering, spectrum analysis, power spectrum analysis)
- 2013-03-26 15:47:54下载
- 积分：1
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ce
说明： matlab时针程序，能实现双时针的配合旋转，历时24小时(The matlab clockwise procedures to achieve dual-clockwise with the rotation, which lasted 24 hours)
- 2012-10-18 09:34:40下载
- 积分：1
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ant-colony-algorithm-in-MAtlab
蚁群算法是一种常用的全局最优化方法，可在matlab中实行他的计算。(The ant colony algorithm is a global optimization method can be implemented in matlab his calculations.)
- 2012-11-26 20:41:25下载
- 积分：1
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软件无线电原理与应用
说明： 西安电子科技大学研究生课程软件无线电作业及代码(Software radio assignments and codes for postgraduate courses in Xi Dian University)
- 2020-11-22 09:43:43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
