基于非相干积累的信道化接收机虚警检测  

Detection of false alarms in the channelized receiver based on noncoherent integration

作　　者：杨一鸣[1] 吴曼青[1] 郑生华[2] 

机构地区：[1]合肥工业大学计算机与信息学院,安徽合肥230009 [2]中国电子科技集团公司第38研究所,安徽合肥230031

出　　处：《合肥工业大学学报（自然科学版）》2007年第11期1415-1416,1501,共3页Journal of Hefei University of Technology：Natural Science

摘　　要：数字信道化接收机是一种新型接收机,非相干积累的时频短时傅里叶变换,能有效地增加接收机的处理增益和对非平稳信号的截获能力,从而提高数字信道化接收机的整体检测性能。该文就其虚警检测问题展开分析,获得了给定虚警概率下的单信道虚警检测门限,并进行了仿真验证,进而为工程中的实际应用提供了有效的理论支持。The analysis of time-frequency short time Fourier transform（STFT） based on noncoherent integration can increase the processing gain of the receiver and its capability of intercepting the nonsta- tionary signals effectively, thus improving the detection performance of the system. The paper deals with the threshold of false alarm detection by a single channel under a given false alarm rate（FAR）. Both mathematic analysis and simulation are support for practical application. carried out. This study provides an effective theoretic

关 键 词：信道化接收机 非相干积累 时频短时傅里叶变换 检测门限 

分 类 号：TN974[电子电信—信号与信息处理]