现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2013年
19期
9-11
,共3页
瞿东辉%周易%王旭明
瞿東輝%週易%王旭明
구동휘%주역%왕욱명
声纳浮标%直升机噪声%自适应%干扰抑制
聲納浮標%直升機譟聲%自適應%榦擾抑製
성납부표%직승궤조성%자괄응%간우억제
sonobuoy%helicopter noise%self-adaptive%interference suppression
声纳浮标的空中布放平台具有与水下目标相近的噪声特性。应用自适应信号处理技术对空中直升机噪声干扰抑制问题进行了研究。分别以直升机空中噪声和组合振速为参考信号，选择基于最小均方误差（LMS）准则进行自适应干扰抵消。仿真分析表明以组合振速为参考信号可以有效抑制高速运动直升机的噪声。
聲納浮標的空中佈放平檯具有與水下目標相近的譟聲特性。應用自適應信號處理技術對空中直升機譟聲榦擾抑製問題進行瞭研究。分彆以直升機空中譟聲和組閤振速為參攷信號，選擇基于最小均方誤差（LMS）準則進行自適應榦擾牴消。倣真分析錶明以組閤振速為參攷信號可以有效抑製高速運動直升機的譟聲。
성납부표적공중포방평태구유여수하목표상근적조성특성。응용자괄응신호처리기술대공중직승궤조성간우억제문제진행료연구。분별이직승궤공중조성화조합진속위삼고신호，선택기우최소균방오차（LMS）준칙진행자괄응간우저소。방진분석표명이조합진속위삼고신호가이유효억제고속운동직승궤적조성。
The airborne deployment platform of sonobuoy has similar noise characteristics with underwater target. The suppression of helicopter noise interference is researched with adaptive signal processing technology. The helicopter aerial noise and combined vibration velocity are respectively used as reference signal,and the least mean square(LMS)principle is chosen to offset the self-adaptively interference. The simulation result indicates that taking combined vibration velocity as reference signal may effectively suppress the helicopter noise in high-velocity motion.
