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FuenteVoz
Fuente de trafico de voz
- 2010-05-10 09:50:37下载
- 积分：1
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Delta-Sigma
Delta-Sigma (Σ-Δ)模数转换技术(Delta-Sigma (Σ-Δ) ADC)
- 2011-06-23 18:59:40下载
- 积分：1
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converter
单相整流器的电流电压双闭环控制仿真图，通过对电流环电压环进行解耦实现(Single-phase rectifier current and voltage double-loop control simulation diagram, by decoupling the current loop voltage loop)
- 2013-04-22 16:17:11下载
- 积分：1
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pca
Principal Component Analysis
- 2009-12-21 18:49:31下载
- 积分：1
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xsk_rd1
sar雷达成像算法仿真，希望有高手指点一下！(sar radar imaging algorithm simulation, you would like to have expert advice!)
- 2007-05-24 14:52:04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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phone_matlab
基于MATLAB的按键式电话信号检测实现(MATLAB-based touch-tone phone signal detection to achieve)
- 2011-09-02 09:42:48下载
- 积分：1
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detection-and-estimation
this matlab program show the ROC ie. reciver operating characterstics. it shows how to plot ROC in matlab . the example is taken from Maurad Barkat- Artech publication
- 2012-07-17 11:29:34下载
- 积分：1
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DTMF
用MATLAB仿真DTMF,分为生成和检测两个部分(use MATLAB to simulate the DTMF including generation and detection)
- 2013-11-27 22:15:55下载
- 积分：1
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semiparameter_sin_eg
关于半参数模型的补偿最小二乘法，利用三次自然样条函数构造正则化矩阵(About half the compensation method of least squares parameter model, the use of natural cubic spline function constructed regularization matrix)
- 2014-05-21 09:52:35下载
- 积分：1
