空军预警学院学报
空軍預警學院學報
공군예경학원학보
Journal of Air Force Radar Academy
2014年
5期
318-322,334
,共6页
天波超视距雷达%海杂波抑制%参考信号
天波超視距雷達%海雜波抑製%參攷信號
천파초시거뢰체%해잡파억제%삼고신호
OTHR%sea clutter cancellation%reference signals
针对传统的天波雷达海杂波循环对消法无法自适应判断对消次数的问题,研究了一种改进的方法即基于参考相邻单元的海杂波循环对消法。该方法用当前海面检测分辨单元所在的子区内其他分辨单元的回波信号构建参考信号,并利用从参考信号提取出的海杂波多普勒频率参数对检测单元进行海杂波循环对消。通过理论分析和实测数据验证,证明了该方法的有效性。
針對傳統的天波雷達海雜波循環對消法無法自適應判斷對消次數的問題,研究瞭一種改進的方法即基于參攷相鄰單元的海雜波循環對消法。該方法用噹前海麵檢測分辨單元所在的子區內其他分辨單元的迴波信號構建參攷信號,併利用從參攷信號提取齣的海雜波多普勒頻率參數對檢測單元進行海雜波循環對消。通過理論分析和實測數據驗證,證明瞭該方法的有效性。
침대전통적천파뢰체해잡파순배대소법무법자괄응판단대소차수적문제,연구료일충개진적방법즉기우삼고상린단원적해잡파순배대소법。해방법용당전해면검측분변단원소재적자구내기타분변단원적회파신호구건삼고신호,병이용종삼고신호제취출적해잡파다보륵빈솔삼수대검측단원진행해잡파순배대소。통과이론분석화실측수거험증,증명료해방법적유효성。
Considering that the times of cancellation can not be determined adaptively by using the conventional sea clutter cancellation of circulation for sky wave radar, this paper puts forward an algorithm, namely a sea clutter cancellation of circulation based on referring to the adjacent cells. This proposed algorithm constructs a reference signal using the echoe signals from other resolution cells in the sub zone where the resolution cells for current sea surface detection are located, and implements the sea clutter cancellation of circulation using the sea clutter's Doppler frequency parameter extracted from the reference signals. By theoretical analysis and test of the measured data, it is proved that this algorithm is of availability.