作者：沈忠义1, 毛五星2, 张元发2
作者单位：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
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
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。
Design and implementation of network conduction instrumentation based on FPGA technology
SHEN Zhong-yi1, MAO Wu-xing2, ZHANG Yuan-fa2
1. Department of Graduate Management, AFRA, Wuhan 430019, China;
2. Department of Electronic Countermeasures, AFRA, Wuhan 430019, China
Abstract: 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.
Keywords: Admittance meter; DDS; FFT; Virtual Instrument; FPGA
2007, 33(5): 65-67117 收稿日期: 2006-11-27;收到修改稿日期: 2007-2-5
基金项目:
作者简介: 沈忠义(1978-),男,硕士研究生,主要从事自动检测、武器系统等研究。
参考文献
[1] 高玉良, 等.现代频率合成与控制技术[M].北京:航空工业出版社, 2002.
[2] 谢嘉奎, 等.电子线路[M].北京:高等教育出版社, 1999.
[3] 莫力, 等.电路设计[M].北京:国防工业出版社, 2005.
[4] 李学海, 等.单片机实用教程[M].北京:电子工业出版社, 2003.
[5] 徐彬, 谭征.基于DDS技术的任意波形发生器[J].电子世界, 2002, 6(1):58-60.
[6] 李彩, 王安, 等.8位高速A/D转换器TLC5510的应用[J].国外电子元器件, 2003, 17(7):59-61.
