摘要
本文给出三维频谱分析系统中信号预处理子系统的设计.该子系统由有源状态变量滤波幕(BPF)、自动增益控制电路(AGC)、数模转换电路(ADC)以及微处理机接口电路等组成.本文提出了线性自动增益控制(LAGC)的概念,实现了各个单元电路并给出了其性能分析.
This paper presents the design of signal preprocessing subsystem in a 3-D s.pectrum analysis system.The circuit units of active state-variable type BPF filter, automatic gain control (AGC),ADC,and microcomputer interface are designed and implemented. Also,a new method of linear AGC module is developed in the paper.
出处
《兰州铁道学院学报》
1995年第3期73-79,共7页
Journal of Lanzhou Railway University
关键词
信号处理
有源滤波器
微机接口
频谱分析
设计
signal processing
active filters
automatic gain control (AGC)
spectrum analysis
microcomputer interface