基于MSP430的脉冲信号的测试与分析  

Test and analysis of the signal impulse based on MSP430

作　　者：刘连生[1] 张磊[1] 

机构地区：[1]中国民航大学航空自动化学院,天津300300

出　　处：《电子测试》2009年第8期19-22,共4页Electronic Test

摘　　要：在雷达、通信、导航和电子对抗等领域的工程实践中,脉冲信号的测试与分析是至关重要的。本文主要介绍了如何运用MSP430单片机内部自带的定时器模块、比较器模块和模数转换器模块,对被测脉冲信号及其各项电气特性参数包括脉冲宽度、信号电平、信号传输频率、上升时间和下降时间等进行检测和测量。最后,运用该方法测得的标准ARINC429信号的各项电气特性参数符合ARINC429规范,验证了本文所述的方法是正确且实用的。The test and analysis for the signal impulse is extraordinary important for the engineering practice in radar, communications, navigation and electronic countermeasure domain. In this paper, it is mainly introduced how to measure various electrical specification parameters of the signal impulse including pulse width, signal level, signal transmission frequency, rising time and/ailing time by using the timer module.comparator module and A / D converter module which is included in the MCU MSP430. Finally, each item of the standard ARINCA29 signal＇s electrical specification parameter which is obtained by using this measuring method conforms to the ARINC429 specification. That verify the method described in this paper is correct and useful.

关 键 词：MSP430 脉冲宽度 信号频率 上升时间 下降时间 ARINC429总线 

分 类 号：TM935.4[电气工程—电力电子与电力传动]