舰船电子对抗
艦船電子對抗
함선전자대항
JIANGCHUAN DIANZI DUIKANG
2012年
3期
31-36
,共6页
宽带接收%单比特接收机%实时处理%瞬时测频
寬帶接收%單比特接收機%實時處理%瞬時測頻
관대접수%단비특접수궤%실시처리%순시측빈
wideband receiving%single bit receiver%real-time processing%instantaneousfrequency measurement
针对现代电子战接收机的大瞬时带宽、实时处理、高灵敏度、快速测频等高性能指标要求,提出了一种基于实时数字信号处理的宽带单比特瞬时测频接收机方案,结合大带宽高速采样的实时快速处理,将单比特接收算法、滑动快速傅里叶变换（FFT）算法、瞬时频率测量算法应用于该算法结构,给出了超高速单比特采样和高速实时信号处理的硬件实现。仿真结果表明,该接收机不仅具备大带宽、实时处理、高频率分辨率等特性,同时具有优异的信号检测灵敏度。
針對現代電子戰接收機的大瞬時帶寬、實時處理、高靈敏度、快速測頻等高性能指標要求,提齣瞭一種基于實時數字信號處理的寬帶單比特瞬時測頻接收機方案,結閤大帶寬高速採樣的實時快速處理,將單比特接收算法、滑動快速傅裏葉變換（FFT）算法、瞬時頻率測量算法應用于該算法結構,給齣瞭超高速單比特採樣和高速實時信號處理的硬件實現。倣真結果錶明,該接收機不僅具備大帶寬、實時處理、高頻率分辨率等特性,同時具有優異的信號檢測靈敏度。
침대현대전자전접수궤적대순시대관、실시처리、고령민도、쾌속측빈등고성능지표요구,제출료일충기우실시수자신호처리적관대단비특순시측빈접수궤방안,결합대대관고속채양적실시쾌속처리,장단비특접수산법、활동쾌속부리협변환（FFT）산법、순시빈솔측량산법응용우해산법결구,급출료초고속단비특채양화고속실시신호처리적경건실현。방진결과표명,해접수궤불부구비대대관、실시처리、고빈솔분변솔등특성,동시구유우이적신호검측령민도。
Aiming at high performance index requirements of modern electronic warfare receiver such as large instantaneous bandwidth, real-time processing, high sensitivity and fast frequency measurement, etc. , this paper puts forward a project of wideband single-bit instantaneous frequency measurement （IFM） receiver based on real-time digital signal processing,combining with fast realtime signal processing of large bandwidth high-speed sampling, uses the single-bit receiving algorithm,slide fast Fourier transform （FFT） algorithm,IFM algorithm to this algorithm framework, presents the hardware realization of super-speed single-bit sampling and high speed real-time signal processing. The simulation results indicate that the receiver not only is provided with the characteristics such as large bandwidth, real-time processing,high frequency resolution, but also has perfect signal test sensibility.
