Matlab is an ideal tool for simulating digital communications systems, thanks to its easy scripting language and excellent data visualization capabilities. One of the most frequent simulation tasks in the field of digital communications is bit-error- rate testing of modems. The bit-error-rate performance of a receiver is a figure of merit that allows different Designs to be compared in a fair manner. Performing bit-error-rate testing withMatlab is very simple, but does require some prerequisite knowledge
标签： communications simulating scripting digital
上传时间： 2014-01-02
上传用户：plsee
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 book is for you if You re no "dummy," and you need to get quickly up to speed in intermediate to advanced C++ You ve had some experience in C++ programming, but reading intermediate and advanced C++ books is slow-going You ve had an introductory C++ course, but you ve found that you still can t follow your colleagues when they re describing their C++ Designs and code You re an experienced C or Java programmer, but you don t yet have the experience to develop nuanced C++ code and Designs You re a C++ expert, and you re looking for an alternative to answering the same questions from your less-experienced colleagues over and over again C++ Common Knowledge covers essential but commonly misunderstood topics in C++ programming and design while filtering out needless complexity in the discussion of each topic. What remains is a clear distillation of the essentials required for production C++ programming, presented in the author s trademark incisive, engaging style.
标签： intermediate you quickly dummy
上传时间： 2014-01-09
上传用户：wpwpwlxwlx
The MIPS32® 4KEm™ core from MIPS® Technologies is a member of the MIPS32 4KE™ processor core family. It is a high-performance, low-power, 32-bit MIPS RISC core designed for custom system-on-silicon applications. The core is designed for semiconductor manufacturing companies, ASIC developers, and system OEMs who want to rapidly integrate their own custom logic and peripherals with a high-performance RISC processor. It is highly portable across processes, and can be easily integrated into full system-on-silicon Designs, allowing developers to focus their attention on end-user products. The 4KEm core is ideally positioned to support new products for emerging segments of the digital consumer, network, systems, and information management markets, enabling new tailored solutions for embedded applications.
标签： MIPS 8482 Technologies 174
上传时间： 2014-12-22
上传用户：semi1981
Testability is the concern most often voiced by Texas Instruments (TIä ) application specific integrated circuit (ASIC) users. This document is intended to consolidate TI policies into a coherent approach to designing for testability. It is not intended as a specification, but as a guide you can use for developing test strategies when Designs are being initiated
标签： Testability Instruments application specific
上传时间： 2016-11-13
上传用户：wfl_yy
Modern C++ Design is an important book. Fundamentally, it demonstrates generic patterns or pattern templates as a powerful new way of creating extensible Designs in C++--a new way to combine templates and patterns that you may never have dreamt was possible, but is. If your work involves C++ design and coding, you should read this book. Highly recommended.-Herb Sutter。好书！
标签： Fundamentally demonstrates important patterns
上传时间： 2013-11-29
上传用户：PresidentHuang
螺旋桨PID控制 In response to constant pressure to design more efficient, faster, smaller, and better systems, engineers are constantly looking for ways to improve existing Designs or replace them with better ones. Facing large fuel costs, the aerospace industry in particular has been researching alternative Designs to increase fuel efficiency and performance. One such alternative is the development of reconfigurable aircraft wings. These wings would be able to adapt to the current environment increasing lift or reducing drag when appropriate.
标签： efficient response constant pressure
上传时间： 2016-11-22
上传用户：trepb001
The Cyclone® III PCI development board provides a hardware platform for developing and prototyping low-power, high-performance, logic-intensive PCI-based Designs. The board provides a high-density of the memory to facilitate the design and development of FPGA Designs which need huge memory storage, and also includes Low-Voltage Differential Signaling (LVDS) interface of the High-Speed Terasic Connectors (HSTCs) for extra high-speed interface application.
标签： development developing prototypi provides
上传时间： 2017-01-29
上传用户：jjj0202
What is Verilog? ➥ Verilog HDL is a Hardware Description Language (HDL) ➥ Verilog HDL allows describe Designs at a high level of abstraction as well as the lower implementation levels ➥ Primary use of HDLs is the simulation of Designs ➥ Verilog is a discrete event time simulator What is VeriWell? ➥ VeriWell is a comprehensive implementation of Verilog HDL
标签： Verilog HDL 10149 Description
上传时间： 2017-02-18
上传用户：
Introduction Matlab is an ideal tool for simulating digital communications systems, thanks to its easy scripting language and excellent data visualization capabilities. One of the most frequent simulation tasks in the field of digital communications is bit-error- rate testing of modems. The bit-error-rate performance of a receiver is a figure of merit that allows different Designs to be compared in a fair manner. Performing bit-error-rate testing withMatlab is very simple, but does require some prerequisite knowledge.
标签： communications Introduction simulating digital
上传时间： 2017-03-20
上传用户：as275944189
