摘要
数字滤波器以其精确、灵活方便等优点而在测控系统中得到了广泛的应用.作者利用数字滤波技术成功地解决了飞机供电系统中直流脉动电压和频率调制等的测试问题.本文讨论了IIR和FIR数字滤波器的特点、设计方法及其在飞机供电系统性能多数测试中的应用情况.
Research on the digital measurement of AEPSS (Aircraft Electrical Power Supply System)perametcrs has been done by Qian II]. but as far as open literature is concerned the following tWo problems arc still unsolved:(l)the measurement of DC voltage ripple spectrum when only microcomputcr isavailable;(2)the accurate measurement of frequency modulation ratio of AC voltage.The abovermentioned two unsolved problems arc dealt with as follows:l.The authors apply infinite Impulse Response aIR) digital filters to meas...
出处
《西北工业大学学报》
EI
CAS
CSCD
北大核心
1994年第2期260-264,共5页
Journal of Northwestern Polytechnical University
关键词
数字滤波器
脉动电压
频率调制
频谱
digital filter
DC voltage ripple
frequency modulation