复杂背景下猝发信号的捕获算法  

The acquisition algorithm of burst signal in complex background

作　　者：杜亚琦[1,2] 卢振钧[1,2] 

机构地区：[1]通信信息控制和安全技术重点实验室,浙江嘉兴314033 [2]中国电子科技集团公司第三十六研究所,浙江嘉兴314033

出　　处：《电子设计工程》2016年第19期188-190,共3页Electronic Design Engineering

摘　　要：提出了一种复杂背景下猝发信号的捕获算法。针对捕获自适应瞬间通信信号,该捕获算法采用了信号最大积累和双门限判决等方法,采用高速的DDR2内存分组,交替读写以实现其可靠存储,并解决了其猝发的随机概率问题。实际信号测试中,可以在信号繁多的几百MHz宽带背景下准确的检测到猝发信号的信号头和信号尾,并能实时、自动、完整的捕获到猝发信号,彻底解决了500 MHz瞬时带宽内的猝发信号实时、盲捕获问题。An algorithm for acquisition of burst signal in complex background was proposed in this paper. For adaptive instantaneous communication signal acquisition, the acquisition algorithm using the maximum signal accumulation and double threshold decision method、high-speed DDR2 Memory packet alternating reading and writing in order to achieve the reliable storage, and solved the problem of random probability of the burst. The head and tail signal can be detected accurately in background with hundreds of megabytes bandwidth. And in order to meet the requirements of the subsequent recognition and demodulation, the algorithm can detect burst signal real-timely, automatically, completely. Completely solve the real-time、blind acquisition of the burst signal in the instantaneous bandwidth of 500 MHz.

关 键 词：猝发信号 捕获算法 复杂背景 高速DDR 

分 类 号：TN911.1[电子电信—通信与信息系统]