基于调幅和调频的基本原理，运用产生信号的两种基本方法，使用CCS软件以及Digital Signal Processor实现调幅调频信号的发生。
上传时间： 2014-01-01
上传用户：jqy_china
Qpsk signal Processing Code The DSP code should be efficient and accurate to properly demodulate the incoming signal. The DSP can be coded strictly in “C” or C-language can be intermingled with assembly code.include Real Time Digital Signal Processor Code – Main.c file BER Test Code
标签： Processing demodulate efficient accurate
上传时间： 2014-08-10
上传用户：dancnc
high frequency design：The eye diagram provides visual information that can be useful in the evaluation and troubleshooting of digital transmission systems
标签： information frequency evaluati provides
上传时间： 2016-05-30
上传用户：小宝爱考拉
用fpga实现的DA转换器，有说明和源码，VDHL文件。 A PLD Based Delta-Sigma DAC Delta-Sigma modulation is the simple, yet powerful, technique responsible for the extraordinary performance and low cost of today s audio CD players. The simplest Delta-Sigma DAC consists of a Delta-Sigma modulator and a one bit DAC. Since, both of these components can be realized using digital circuits, it is possible to implement a low precision Delta-Sigma DAC using a PLD.
上传时间： 2016-06-10
上传用户：bjgaofei
Abstract-The effect of the companding process on QAM signals has been under investigation for the past several years. The compander, included in the PCM telephone network to improve voice performance, has an unusual affect on digital QAM data signals which are transmitted over the same channel. The quantization noise, generated by the companding process which is multiplicative (and asymmetric), degrades the detectability performance of the outermost points of the QAM constellation more than that of the inner points. The combined effect of the companding noise and the inherent white gaussian noise of the system, leads us to a re-examination of signal constellation design. In this paper we investigate the detectability performance of a number of candidates for signal constellations including, a typical rectangular QAM constellation, the same constellation with the addition of a smear-desmear operation, and two new improved QAM constellation designs with two-dimensional warpi
标签： investigation Abstract-The companding the
上传时间： 2013-12-20
上传用户：英雄
This project allows you to learn communication systems in greater depth. It contains the Simulink files (*.mdl) which are block design files of various communication systems such as AM, DSB-SC, FM, PLL, Data Acquisition, Digital Data Transmission, PCM and Delta Modulation. The idea here is to implement experiments of a traditional communication lab using Simulink. Most of the block diagrams are self explanatory. More information on the systems and their implementation can be found in the word documents included in the lab directories
标签： communication Simulink contains project
上传时间： 2013-12-09
上传用户：lz4v4
这是一本由MathWorks公司2008年5月出版的有关数字滤波器设计的书，书名是Digital Filters with MATLAB。书中详细介绍了各种滤波器的设计，同时还详细介绍了有关的Matlab函数的使用方法等，是一本学习数字信号处理又结合Matlab少有的好书。书中包含了许多Matlab的程序。
上传时间： 2013-12-26
上传用户：zhangjinzj
Parses UK Profile 1.05/1.06 Object Carousel and saves files to disk (all stored under /tmp/cache at the moment). The files are the scripts and text/image data for MHEG5, the interactive(ish) element of digital TV. At the moment the MHEG scripts are not parsed, so to duplicate that interactive experience, speedy usage of "cat" and "xv" is recommended.
标签： Carousel Profile Parses Object
上传时间： 2014-01-14
上传用户：hgy9473
A few short years ago, the applications for video were somewhat confined—analog was used for broadcast and cable television, VCRs, set-top boxes, televisions and camcorders. Since then, there has been a tremendous and rapid conversion to digital video, mostly based on the MPEG-2 video compression standard. Today, in addition to the legacy DV, MPEG-1 and MPEG-2 audio and video com- pression standards, there are three new high- performance video compression standards. These new video codecs offer much higher video compression for a given level of video quality.
标签： applications for confined somewhat
上传时间： 2016-10-29
上传用户：bjgaofei
MediaPlayer程序可以播放声音、视频文件，还可以显示静态图象文件，如果有CMX DLLs的话，该程序也可以记录或回放高通公司的QCP格式音频文件。它最多可以保存32个多媒体文件。Mediaplayer有常用的功能，例如播放、快速播放、停止和暂停等，它支持许多多媒体格式，包括QCP，MPEG Audio Layer3（MP3），Musical Instrument Digital Interface（MIDI），BREW Compressed Image（BCI），Bitmap（BMP），和包含音视频的Packet Mode Data（PMD）。 这个程序的运行目标设备是Sharp Z-800，在Simulator上，我们选择Sharp Z-800设备图片。
标签： MediaPlayer 程序 播放 视频
上传时间： 2016-11-01
上传用户：
