-
MATLAB-Function.doc
matlab常用函数大全,很有用,特别是初学者。(matlab full funtions,very useful for initial learners。)
- 2012-07-01 16:36:31下载
- 积分:1
-
matlab
数值方法(MATLAB版)第四版的上机答案 语言是matlab 一般每个题目一个文件夹 主程序一般为main文件(Numerical methods (MATLAB version) fourth edition of the machine language is the answer to every problem a general matlab folder as the main file main general)
- 2013-10-05 17:14:36下载
- 积分:1
-
jiachuang
因为傅立叶变换对应的是无限信号,信号经过分帧后变成有限信号,分帧的信号再进行傅立叶变换后,高频部分将有 泄露 ,所以要加窗.
窗函数的拼谱都是在某高频部分截止,所以每帧信号加窗后的傅立叶变化,频谱基本 泄露 (Because Fourier transform corresponding is infinite signals, signals after framing become limited, framing signal again after Fourier transform, the high frequency part will have leaked , so to add window.
Window function spell spectrum are in a high frequency part of the globe, so each frame and window after Fourier transform, signal spectrum basic leak )
- 2015-03-30 12:16:28下载
- 积分:1
-
23adc
基于Matlab的ADC自动测试系统开发(Matlab-based ADC automatic test system development
)
- 2012-01-25 07:42:23下载
- 积分:1
-
S440_DC-DC_2012b
用MATLAB/SImulin仿真平台搭建的直直变换器,加有闭环控制,正激电路、反激电路、丘克电路。(DC-DC converter modeling and simulation by
matlab simulink,closed-loop control,Foward,Flyback,CuK circuit)
- 2020-12-26 00:19:03下载
- 积分:1
-
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
-
jiguang
激光谐振腔不同初始光强和相位分布下不同腔型下光振幅和相位模拟(Laser resonator with different initial light intensity and phase distribution of different cavity amplitude and phase of optical simulation)
- 2010-12-28 17:17:37下载
- 积分:1
-
matlabexamplefull(2)
matlab程序应用第二集,对于初学者,这是必不可少的学习实例,有什么需要,我会尽量满足大家的。(mobile beasts Matlab Application procedures for beginners, it is essential to study examples What is the need, I will try to meet all the people.)
- 2007-05-06 23:11:45下载
- 积分:1
-
me_kf
这是一个马乐土科夫-GM(1,1)的程序代码,一般用于预测,对于短期预测非常有效(This is a horse paradise Cove-GM (1,1) of the code, generally used for prediction, is very effective for short-term forecast)
- 2011-09-01 16:26:04下载
- 积分:1
-
assgnt1_ex4
matlab image procesing
- 2009-10-12 06:58:43下载
- 积分:1