摘要
考虑了信号处理单元的频率函数对红外探测器输出信号的影响,推导了红外探测系统在探测器噪声限下的作用距离方程,对传统的作用距离方程进行了修正;给出了采用匹配滤波技术的信号处理系统和调制系统必须满足的关系及相应的作用距离方程表达式,为红外系统的设计和性能评估提供了正确的理论依据。
With consideration of frequency function of signal processing circuit, a generalized range equation of IR system is again derived under detector noise limit and the conventional generalized range equation is modified. In this paper we also discusse the relationships between signal processor and modulator of the system with matched-filter and give a correspondent range equation, which provide a theoretical guideline for designing and evaluating the performance of IR system.
出处
《红外技术》
CSCD
1992年第3期8-12,共5页
Infrared Technology
关键词
红外系统
红外探测
探测距离
IR system
IR detection
Range equation
Detection distance
