Description: 基于DVB-c欧洲标准的有线数字标准，实现差分编码和解码，可以实现该功能-based on DVB-c European standards Digital Cable standards, the differential coding and decoding, can achieve the functional Platform: |
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Author:孙月 |
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Description: Sobel算子：是一种空域微分算子，可以通过它锐化图象。
将图象分块(8*8),作DCT变换,并作IDCT：DCT是一种可分离图象变换，用来图象压缩编码。-Sobel Operator : airspace is a differential operator, through its image sharpening. Image will block (8* 8), for the DCT and IDCT for : DCT is a separable Image Transform, used to image compression coding. Platform: |
Size: 2048 |
Author:xuhua |
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Description: 转,matlab(边界提取,链码生成,差分链码生成及频率向量生成程序)具有旋转不变性了的链码-Turn, matlab (border extraction, chain code generation, differential chain code generation and the frequency of vector generation procedure) has the rotation invariance of the chain code Platform: |
Size: 6144 |
Author:陈娟 |
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Description: DAB发送端仿真，包括编码，删余，QPSK映射，频率交织，差分调制，循环嵌缀，加NULL、PRS,IFFT，信道-DAB sending end simulation, including coding, cut more than, QPSK mapping, interwoven frequency, differential modulation, the cycle is made up of inlay, plus NULL, PRS, IFFT, channel Platform: |
Size: 5120 |
Author:Aries |
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Description: 一篇西安电子科技大学的硕士论文，讨论了各种空时编码技术的设计准则和编译码方案，分析了不需要信道状态信息的差分酉空时编码调制技术，给出了仿真结果。-Xidian University, a master s thesis, discussed a wide range of space-time coding technology, design criteria and codec programs analyzed do not need to channel state information of Differential Unitary Space-Time code modulation technology, the simulation results. Platform: |
Size: 2368512 |
Author:fisher |
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Description: 根据空时分组编码的特性及缺陷,考虑使用差分空时编码,该程序实现差分空时分组编码的性能仿真,是根据Space–Time Block Coding for Wireless一书的性能仿真-Space-time block coding according to the characteristics and defects, to consider the use of differential space-time coding, the program realize differential space-time block coding performance simulation is based on Space-Time Block Coding for Wireless book one of the performance simulation Platform: |
Size: 2048 |
Author:张靖悦 |
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Description: 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 Platform: |
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Author:压子 |
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Description: 差分脉冲编码调制（DPCM）的matlab模块仿真，实现抽样，量化，预测，编码并解码，欢迎下载使用，我自己编的-Differential pulse code modulation (DPCM) of matlab simulation module, the realization of the sample, quantification, prediction, coding and decoding, welcome to download, I own the Platform: |
Size: 7168 |
Author:张正锋 |
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Description: 1100011001的非归零码、曼彻斯特编码、差分曼彻斯特编码、调幅（ASK）、调频（FSK）和调相（PSK）的编码波形示意图-1100011001 of the NRZ, Manchester encoding, differential Manchester encoding, AM (ASK), frequency modulation (FSK) and phase modulation (PSK) waveform diagram of the coding Platform: |
Size: 1024 |
Author:刘骁明 |
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Description: 我毕设时的MSK编程，，MATLAB，，带有差分编码的，程序比较简洁易懂-I completed the set when the MSK program,, MATLAB,, with differential coding, the procedure is simple and easy to understand Platform: |
Size: 2460672 |
Author:张含 |
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Description: Implementation of JPEG compression algorithm with JFIF header being appended.This project involves writting code for following steps : Chroma subsampling,partitioning ,level shifting,DCT,quantization,zigzag scanning(involves DC differential coding & AC huffman coding) & adding jfif header following the rules specified in itu-t.81. Platform: |
Size: 966656 |
Author:dwn |
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Description: 利用群酉码编码，差分译码的MATLAB仿真程序-Using group unitary coding, differential coding of the MATLAB simulation program Platform: |
Size: 1024 |
Author:高建丰 |
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Description: Tool for compress and decompress for image, using differential coding prediction-Tool for compress and decompress for image, using differential coding prediction Platform: |
Size: 92160 |
Author:Lusa Elena |
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Description: 有关FIR滤波器、求解微分方程、移动通信系统低通等效模型、信道编码、转移矩阵一些简单示例仿真。-The FIR filter, solving differential equations, low-pass equivalent mobile communication system model, channel coding, some simple examples of transition matrix simulation. Platform: |
Size: 179200 |
Author:linda |
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Description: 是学习PCA特征提取的很好的学习资料，FMCW调频连续波雷达的测距测角，主要是基于mtlab的程序，有信道编码，调制，信道估计等，本科毕设要求参见标准测试模型，双向PCS控制仿真，使用大量的有限元法求解偏微分方程，关于小波的matlab复合分析。- Is a good learning materials to learn PCA feature extraction, FMCW frequency modulated continuous wave radar range and angular measurements, Mainly based on the mtlab procedures, Channel coding, modulation, channel estimation, Undergraduate complete set requirements refer to the standard test models, Two-way PCS control simulation, Using a large number of finite element method to solve partial differential equations, Matlab wavelet analysis on complex. Platform: |
Size: 7168 |
Author:ckefda |
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