基于实时数字信号处理的宽带单比特瞬时测频接收技术  

Wideband Single-bit IFM Receiving Technology Based on Real-time Digital Signal Processing

作　　者：王坤达[1] 

机构地区：[1]船舶重工集团公司723所,扬州225001

出　　处：《舰船电子对抗》2012年第3期31-36,共6页Shipboard Electronic Countermeasure

摘　　要：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。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.

关 键 词：宽带接收 单比特接收机 实时处理 瞬时测频 

分 类 号：TN971.1[电子电信—信号与信息处理]