摘要
依据大气垂直探测仪的设计要求,给出激光干涉信号光电检测电路的实现方法。通过选择合适的探测器,对前置放大级进行噪声分析,设计了低噪声光电转换前置放大电路。利用Multisim对2阶Butterworth低通滤波器进行仿真,验证了所设计的滤波器是可行的。简化设计了整形电路,从而获取脉冲输出信号。
An implementation method of photoelectric detecting circuit for laser interferometry signals is provided according to the performance of the sounder. In order to design a low-noise preamplifier circuit, it is necessary to choose an appropriate photoelectric detector and to analyze the noise performance of preamplifer. A 2-step Butterworth low pass filter is designed and the simulation in Multisim environment proves that the filter is effective. A conditioning circuit is also designed for getting pulse output signals.
出处
《半导体光电》
CAS
CSCD
北大核心
2010年第2期284-287,共4页
Semiconductor Optoelectronics
关键词
光电检测
放大器
滤波器
噪声
干涉
photoelectric detecting
amplifier
filter
noise
interferometry
