Efficient Processing of Irregular PRF Waveforms: Clutter Suppression and Approximate 2D Matched Filtering
conference paper
Coherently processed waveforms with irregular pulse repetition frequency (PRF) for radar applications have the potential to simultaneously resolve periodic range and Doppler ambiguities. However, their lack of regularity and high sidelobes require tailored processing methods to detect targets and remove unwanted clutter returns. These methods typically incur higher computational loads than classical algorithms, hindering their adoption. This work introduces computationally efficient methods to suppress low-velocity clutter and perform approximate two-dimensional matched filtering using sub-pulse processing. We show that the methods can also be tuned to limit target energy losses when prior information is known. We verify their performance through numerical experiments and show that the proposed methods can efficiently remove slow-moving clutter and process large Doppler spans, while incurring a limited loss (1 to 3 dB) to target energy
Topics
TNO Identifier
989358
Publisher
IEEE
Source title
2023 IEEE Radar Conference (RadarConf23), San Antonio, TX, USA, 2023
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