摘要
导出了信号截获因子与信号参数的关系 ,认为大的时间 带宽积是低截获概率信号的必要条件。讨论了直接序列 (DS)扩频信号作为低截获概率 (LPI)雷达信号的不足 ,然后提出了一种对于雷达具有适当的时间带宽积、对于辐射计具有较大时间带宽积的信号 ,并分析和验证了该信号的LPI性能。
The relation between the interception factor and signal parameters is deduced. Large time bandwidth(TB) product is a necessary condition for an LPI signal. The shortcoming of the direct sequence(DS) spread sprectrum signal acting as an LPI radar signal is discussed. A new type of signal with suitable TB product for radar and a very large TB product for radiometer is designed and evaluated.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2002年第11期31-33,共3页
Systems Engineering and Electronics
基金
国防科技预研基金资助课题 (99J3 3 KG0 12 2 )
