Radar warning receiver (RWR) time-coincident pulse data extraction and processing
W.A. Gee · 2012
This paper will present an approach for implementing an airborne radar warning receiver (RWR) pulse data extraction (PDE) and processing technique capable of handling multiple time-coincident radio-frequency (RF) pulse input threat emitter signals received in a dense threat radar signal environment. The pulse data extraction technique is specifically developed to accommodate the RF to video response of current commercial-off-the-shelf (COTS) or militarized COTS (MOTS) extended-range detector logarithmic video amplifiers (ERDLVAs), including extracting signal information in the presence of device noise. The approach uses a combination of time-domain filtering, adjustable thresholds, and edge detection techniques combined with a four-quadrant data comparison to extract individual pulse data from overlapped multi-source and uncorrelated noisy pulse inputs, and the processed data output can be used as part of the presented PDE algorithm and also may provide pre-processing for currently used pulse deinterleaving and sorting methods. The developed technique has the potential to provide system response that is optimized for various threat environments via pre-deployment programming or continuous-time dynamic variations in the PDE.