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单片机编程 基于MC9S12HZ256的总线式汽车数字仪表设计

首先研究CAN总线和SAE J1939协议,提出一种基于MC9S12HZ256微控制器的总线式汽车数字仪表解决方案。详细介绍SAE J1939协议的报文帧格式及应用层协议中发动机相关参数的定义,以及步进电机及其驱动和车速信号的处理方法。该数字仪表系统硬件平台由微处理器和信号采集和信息处理及显示等模块组成。软件设计部分编程实现了对CA ...
https://www.eeworm.com/dl/502/29185.html
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技术资料 一种基于单片机的胎心仪信号模拟装置

胎心率是胎儿健康状态的重要生理指标,超声测量胎心率是临床上最常用的一种手段。在超声胎心仪的研制过程中需要胎心仪信号模拟装置来验证仪器精确性,提出一种基于单片机的胎心仪信号模拟装置,该装置用步进电机驱动小钢珠在水中震动,模拟人体内的胎儿心脏的跳动,通过单片机内的定时器功能改变钢珠震动的频率和幅度,通过震动的 ...
https://www.eeworm.com/dl/897404.html
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通讯编程文档 This a GUI based system. The GUI is invoked from the command line by typing "ui_start". The GUI is s

This a GUI based system. The GUI is invoked from the command line by typing "ui_start". The GUI is self explanatory. Tool tips are given in blue color. The cursor needs to be positioned on these for detailed explanation. The main file is "runsim.m". In these simulations the SISO option is not expli ...
https://www.eeworm.com/dl/646/337083.html
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书籍 Digital Phase Locked Loop

This work titled A Digital Phase Locked Loop based Signal and Symbol Recovery System for Wireless Channel is intended to serve as a document covering funda- mental concepts and application details related to the design of digital phase locked loop (DPLL) and its importance in wireless communication. ...
https://www.eeworm.com/dl/521869.html
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书籍 Advanced+Chipless+RFID

The author’s group has developed various chipless RFID tags and reader architectures at 2.45, 4–8, 24, and 60 GHz. These results were published extensively in the form of books, book chapters, refereed conference and journal articles, and finally, as patent applications. However, there is still ro ...
https://www.eeworm.com/dl/522376.html
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技术资料 DSP控制的电力线通信模拟前端接口设计

· 摘要:  DSP(Digital Signal Processor)为各种电子系统提供了许多片内外设以及计算能力,设计人员可以实现许多功能,例如电力载波通信、功率因数校正、变频控制等.笔者设计了一个遵从CEA-709协议的、DSP控制的电力线通信模拟前端接口.   ...
https://www.eeworm.com/dl/942908.html
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技术资料 基于TMS320F2812的外场信号检测研究

· 摘要:  本文介绍了采用TMS320F2812数字信号处理器DSP(Digital Signal Processor)对外场导航音频信号进行检测,从而求得可听度系数KPC的方法.利用DSP强大的计算能力完成对导航音频信号的数字化运算处理等,提高了信号的精度.   ...
https://www.eeworm.com/dl/944081.html
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通讯/手机编程 数字基带传输系统的MATLAB仿真实现 function [sampl,re_sampl]=system_1(A,F,P,D,snr,m,N) 输入变量A ,F,P分别为输入信号的幅度、频率和相

数字基带传输系统的MATLAB仿真实现 function [sampl,re_sampl]=system_1(A,F,P,D,snr,m,N) 输入变量A ,F,P分别为输入信号的幅度、频率和相位,D为量化电平数,snr 为信道信噪比,N为D/A转换时的内插点数;输出变量sampl为抽样后的输入 信号,re_sampl为恢复出的输入信号。 数字基带传输系统的MATLAB仿真实现 [sampl,qu ...
https://www.eeworm.com/dl/527/430254.html
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技术资料 一种新型温度变送器的设计

设计一种适用于工业测量领域的温度变送器。该系统以单片机技术为核心,将 8 路 Pt100 温度传 感器输出信号转变为与所测温度呈线性关系的 8 路 4~20 mA 电流信号,支持 RS485 总线,其采用的数 据传输方式与硬件电路设计能将所测温度以数字信号向外输出,支持工业的局域网络。This paper designs a temperature transmitter suit ...
https://www.eeworm.com/dl/894655.html
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单片机编程 Using the P82B96 for bus inter

The P82B96 offers many different ways in which it can be used as abus interface. In its simplest application it can be used as aninterface between bus systems operating from different supplyvoltages. Opto isolation between two bus systems is possible, andalso the availability of the Tx and Rx signal ...
https://www.eeworm.com/dl/502/31091.html
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