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双传感器复合探测时各传感器判决门限的选取和融合方法的讨论
引用本文:汪仪林.双传感器复合探测时各传感器判决门限的选取和融合方法的讨论[J].探测与控制学报,2007,29(3):1-4.
作者姓名:汪仪林
作者单位:西安机电信息研究所,陕西,西安,710065
摘    要:两种性能传感器复合探测系统中,传感器各自的检测门限的确定及选择合理的融合算法是系统设计中的关键问题。通过仿真讨论了虚警率一定时,双传感器复合的融合方法和不同信噪比的下各传感器门限的选取,得出了在虚警率一定时两传感器输出加权平均的融合方法并不优于单传感器,而传感器输出相与的融合方法只要合理选择各自的门限可得到明显优于单传感器的检测性能。

关 键 词:检测融合  信号处理  恒虚警
文章编号:1008-1194(2007)03-0001-04
收稿时间:2007-02-05
修稿时间:2007年2月5日

Discussion on the Decision-threshold Selection and Data Fusion Method of Dual-sensor Detection System
WANG Yi-lin.Discussion on the Decision-threshold Selection and Data Fusion Method of Dual-sensor Detection System[J].Journal of Detection & Control,2007,29(3):1-4.
Authors:WANG Yi-lin
Abstract:In a comPosite detection system,both the determination of detecting threshold for each sensor and the selection of oPtimized data fusion algorithm are the key Points to the systematic design.Under the condition of constant false alarm rate(CFAR),the data fusion method of dual-sensor detection system and the decision-threshold selection with different signal noise ratio(SNR) are studied in the PaPer via emulation technology.The simulation result shows that the ProPerty of dual-sensor system,which uses the weighted average out-Put method for data fusion,is not better than that of single sensor system.When each sensor's threshold is reasonably selected and their out-Put is ANDed with each other,the detective ProPerty of dual-sensor system is much better than that of the single sensor system.
Keywords:detection fusion  signal Processing  constant false alarm rate(CFAR)
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