摘要
本文针对跳频信号检测的问题,研究并设计了一种新的检测算法。该方法对信道进行由"粗"到"细"的分层检测,降低了很多无谓的资源消耗。文章首先介绍了传统信道化处理的思想并推导出其模型的数学表达式。然后分析了这种模型在跳频信道数较多时难于实现的原因,进而提出分层信道化处理的检测模型。接下来对该模型的运算量进行了推导并与传统结构的运算量进行了比较:改进后运算量降低了40%。最后给出了运算效率与信道化层数之间的关系曲线图。
This paper presents an improved channelized-receiving algorithm to receive and detect the Frequency-Hopping（FH） signals.It consists of the coarse detection and fine detection,which can effectively reduce the meaningless hardware or software resource consumption.Firstly,the principle and structure of the channelized-receiver are given.Secondly,the reason why it is difficult to realize is analysed,when there are too many FH channels.Therefore,the layer channelized detection algorithm is proposed.Thirdly,the computation formula of these two methods are analysed and the conclusion is that the computation of the improved algorithm reduces 40%.Finally,the photograph of the relationship between the computation and number of layers is given.
出处
《电路与系统学报》
CSCD
北大核心
2011年第3期113-117,共5页
Journal of Circuits and Systems
关键词
跳频
层次信道化
检测
Frequency-Hopping（FH）
layer channelization
detection
