基于FPGA的网络导纳测量仪设计与实现  

Design and implementation of network conduction instrumentation based on FPGA technology

作　　者：沈忠义[1] 毛五星[2] 张元发[2] 

机构地区：[1]空军雷达学院研究生管理大队,湖北武汉430019 [2]空军雷达学院雷达与光电对抗教研室,湖北武汉430019

出　　处：《中国测试技术》2007年第5期65-67,117,共4页CHINA MEASUREMENT & TESTING TECHNOLOGY

摘　　要：为了实现对无源端口网络的导纳进行自动测量,根据虚拟仪器设计思想,设计实现了基于FPGA的网络导纳测量仪,系统以FPGA作为数字平台模拟产生优质的正弦信号,在单片机C8051的控制和处理下,自动实现端口网络(RL或者RC电路)导纳值的测量、计算、显示,同时具有频率步进测量功能。实验表明,该导纳测量仪性能稳定、操作简单、测量精度高,具有广阔的应用前景。In order to measure the passive network＇s conduction automatically, a network conduction instrumentation based on FPGA technology was designed and implemented according to the design principle of Virtual Instrument. System adopted FPGA technology building a digital flat-top to imitatively produce the high quality sine signal. Under the control of C8051MCU, measurement, calculation and display of the port network＇s conduction were automatic implementation. Furthermore, the system has the function of frequency step measurement. The results show that the system has several advantages as following： steady performance, convenient operation, high measurement accuracy, and it will have bright foreground application.

关 键 词：导纳测量 直接数字频率合成 快速傅立叶变换 虚拟仪器 FPGA 

分 类 号：TH824[机械工程—仪器科学与技术]