舰船电子对抗
艦船電子對抗
함선전자대항
JIANGCHUAN DIANZI DUIKANG
2012年
2期
35-37
,共3页
小波变换%故障检测%组合导航%量测信号
小波變換%故障檢測%組閤導航%量測信號
소파변환%고장검측%조합도항%량측신호
wavelet transform%fault detection%integrated navigation%measured signal
针对导航系统所存在的软故障及其特性，并结合小波信号分析的特点，提出了基于小波分析的组合导航系统故障检测的方法，采用该方法对含有软故障的组合导航系统信息的量测信号进行处理与分析，从而达到故障检测的目的，将此方法应用于捷联惯性导航系统／全球定位系统（SINS／GPS）组合导航系统的故障检测。对仿真结果的分析表明，该方法可以检测出组合导航系统的所存在的软故障，并且更加简便灵活，效果明显。
針對導航繫統所存在的軟故障及其特性，併結閤小波信號分析的特點，提齣瞭基于小波分析的組閤導航繫統故障檢測的方法，採用該方法對含有軟故障的組閤導航繫統信息的量測信號進行處理與分析，從而達到故障檢測的目的，將此方法應用于捷聯慣性導航繫統／全毬定位繫統（SINS／GPS）組閤導航繫統的故障檢測。對倣真結果的分析錶明，該方法可以檢測齣組閤導航繫統的所存在的軟故障，併且更加簡便靈活，效果明顯。
침대도항계통소존재적연고장급기특성，병결합소파신호분석적특점，제출료기우소파분석적조합도항계통고장검측적방법，채용해방법대함유연고장적조합도항계통신식적량측신호진행처리여분석，종이체도고장검측적목적，장차방법응용우첩련관성도항계통／전구정위계통（SINS／GPS）조합도항계통적고장검측。대방진결과적분석표명，해방법가이검측출조합도항계통적소존재적연고장，병차경가간편령활，효과명현。
Aiming at the existent soft fault and its characteristics in navigation system, this paper puts forward the method to detect the fault of integrated navigation system based on wavelet analysis combing with the characteristics of wavelet signal analysis, uses the method to process and analyze the measured signal of the integrated navigation system information containing the soft fault, thereby achieve the goal of fault detection,adopts the method to detect the fault of strapdown inertial navigation system （SINS）/global position system （GPS） integrated navigation system. The a nalysis to the simulation result indicates that the method can detect the existent soft fault in the integrated navigation system, and is more simple and agile, the effect is obvious.
