摘要
根据舰船通信系统的多天线阵结构,提出一种适合舰船通信的新的非合作直扩信号检测方法,与传统多信号检测方法不同,新方法在预处理部分引入了核独立分量分析技术,克服了多个信号频段重叠、频谱交叉时信号难以分离的难题,提高了后续部分直扩信号的检测与识别准确率,通过仿真分析,验证了该检测方法的有效性.如对决策参数做适当调整,该检测方法同样适用于其他通信信号的检测.
According to the multiple-antenna matrix structure of ship communications,we present a new method for the detection of non-cooperative DS signals which are suitable for the ship communications and different from traditional methods for the detection of multiple signals.The kernel independent component analysis is employed to the pretreatment of DS signals in this method to solve the problem that it is difficult to be separated for the signals when the overlapping of several signal frequency bands and the spectrum crossing occur.Thus the accuracy of detection and recognition of DS signals in the subsequent parts is improved.Simulation results show that the presented detection method is effective.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2010年第1期41-45,共5页
Journal of Harbin Institute of Technology
基金
国家自然科学基金资助项目(60872108)
关键词
舰船通信
核独立分量分析
直扩信号
ship communication
kernel independent component analysis（K-ICA）
DS signal
