摘要
在研究检验量统计特性的基础上,从理论上分析了恒虚警概率准则下门限及驻留时间对系统虚警概率和发现概率的影响,并提出了一种门限及驻留时间的设计方法.门限与虚警概率、搜索并行度及非相干累加次数有关,驻留时间与虚警概率、发现概率、搜索并行度及载噪比有关.仿真结果证明了该方法的正确性.
Based on the research on the statistical property of decision variables, this paper analyzes theoretically the influences of threshold and dwell time on the false-alarm probability and the detection probability under constant false-alarm rate （CFAR） criteria. A method to design the threshold and dwell time is proposed in which the threshold is expressed in the relationship of the false-alarm probability, the cells searched in one pass and the non-coherent integrations, and the dwell time is related to the false-alarm probability, the detection probability, the cells searched in one pass and the carrier-to-noise ratio. Simulation results demonstrate that the proposed method is correct.
出处
《信息与控制》
CSCD
北大核心
2009年第2期253-256,共4页
Information and Control
基金
国家863计划资助项目(2007AA12Z344)
