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Abstract
Orthogonal frequency division multiplexing (OFDM) is becoming the chosen
modulation technique for wireless communications. OFDM can provide large data
rates with sufficient robustness to radio channel impairments. Many research centers
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dicom文件标准中文第一章，医学数字影像和通讯(DICOM)第一部分：介绍和概述-dicom file Chapter of the standard Chinese Medical Digital Imaging and Communications (DICOM) Part I: Introduction and Overview
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医学数字成像和通讯(DICOM)
部分2:遵从性
-Digital Imaging and Communications (DICOM) Part 2: Compliance
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STC89C58 SCM done with the data acquisition and control 12 AD switch TLC2543, modbus communications protocols used (RTU), Switching to allocate yards from the plane to change addresses, support analog or digital literacy. (4 analog input, six-channel
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Orthogonal frequency division multiplexing (OFDM) is becoming the chosen
modulation technique for wireless communications. OFDM can provide large data
rates with sufficient robustness to radio channel impairments. Many research centers
in the w
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本书专为大学自动控制、机械电子、机械制造与自动化、电力电气、通信工程等专业大
学本科生、研究生、教师、科技工作者编写。本书力图将信号分析与处理、信号与系统、数字
信号处理、工程测试等有关教学内容和MATLAB语言紧密、有机地结合起来，使学生在
学习基础理论知识的同时学会应用MATLAB，在学习应用MATLAB的同时，加深对基
础知识的理解，增强学生的计算机应用能力，提高教学效果。本书编入大量MATI‘AB应
用程序，每章也有一定的数量习题，供读者能尽快掌握MATLAB的编程
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With the recent advances inmicro electro-mechanical systems(MEMS) technology, wireless communications, and digital electronics, the design and development of low-cost, low-power, multifunctional sensor nodes that are small in size and communicate unt
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实验一 交通灯控制实验 2
实验二 可编程定时器/计数器 8
实验三、可编程中断控制器 15
实验四 模/数转换器 A/DC0809 23
五、双机串行通讯 30
六、竞赛抢答器 39
汇编程序源码及电路原理-Experiment a traffic light control experiment 2 experiment two programmable timer/counter 8 third experiment, experiment four program
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The most common wireless technologies use radio. With radio waves distances can be short, such as a few meters for television or as far as thousands or even millions of kilometers for deep-space radio communications. It encompasses various types of f
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1、 等精度数字频率/相位测试仪是电子通信电路测试设计常需要的一种工具。设计的指标包括，测量频率的范围：（0.1Hz-100MHz），测量精度：測频全域不大于百万分之一。具有脉宽测试功能，相位测试功能。系统的组成框图如下所示，TCLK为待测的信号，BCLK为系统的时钟。其主控制结构如图測频原理所示，采用高速的系统时钟BCLK对待测信号时钟TCLK进行计数，然后计算出一个周期的平均值，最后输出高8位数据。-1, and other precision digital frequency/phase
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QPSK 调制全称 Quadrature Phase Shift Keying，意为正交相移键控，是
一种数字调制方式。它的频带利用率高，且抗干扰性能强，已经成为现代通信
技术中一种十分重要的调制解调方-QPSK’s full name is Quadrature Phaseshift Keying which is a kind of digital
modulation types. It has been widely used in wireless communicatio
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We have proposed a digitally implemented QPSK system for Free-Space Optics (FSO) systems for future satellite missions. We have used a Laser source of 1550nm wavelength and data rate of 2.5Gbps.The system consists of a modulating and a demodulating b
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GSM Basics : Global System for Mobile Communications s a digital mobile telephony system that is widely used in Europe and other parts of the world.
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随着工业测控技术和生产自动化技术的不断进步 ,传统的 RS-232、 RS-485和 CCITTV. 24通信技术已不能适应现代化的工业控制需要 ,而现场总线 ( Fieldbus)以其低廉的价格、可靠的性能而逐步成为新型的工业测控领域的通信技术。现场总线是应用在生产现场 ,在微机化测量控制设备之间实现双向串行多节点数字通信的系统 ,是一种开放式、数字化、多点通信的底层控制网络。 汇集了计算机技术、网络通信技术和自动控制技术 ( 3C)的现场总线技术 ,从 20世纪 80年代开始发展起来 ,并逐
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语音设计文档PPT，主要是语音设计方案，应用在电梯对讲系统，能够实现数字语音通信-Voice design documents PPT, the main voice design, used in the elevator intercom system, enabling digital voice communications
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这是有关数字信号处理，通信，硬件开发的日文期干，有用。-This is a journal related to digital signal processing, communications, hardware development of Japanese , useful.
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文章阐述了在高速水声通信中的最新研究成果。-This paper presents a review of
recent results and research problems in high-speed underwater
acoustic communications, focusing on the bandwidth-efficient
phase-coherent methods. Experimental results are included to
illu
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