Correlation-Based Radar Receivers with Pulse-Shaped OFDM Signals
| Autor: | Cyrille Enderli, Steven Mercier, Stephanie Bidon, Damien Roque |
|---|---|
| Přispěvatelé: | Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE), Thales (FRANCE) |
| Rok vydání: | 2020 |
| Předmět: |
Computer science
Orthogonal frequency-division multiplexing Matched filter Doppler radar Random sidelobes Matched filtering Multiplexing Pulse shaping law.invention symbols.namesake Signal-to-noise ratio law Waveform sharing Electronic engineering symbols Traitement du signal et de l'image Clutter Waveform Orthogonal frequency-divisionmultiplexing (OFDM) Radar Dual-functional radar-communication (DFRC) Radar-communications Doppler effect RadCom Computer Science::Information Theory |
| Zdroj: | 2020 IEEE Radar Conference (RadarConf20). |
| DOI: | 10.1109/radarconf2043947.2020.9266703 |
| Popis: | In waveform sharing scenarios, various radar receivers have been developed for orthogonal frequency-division multiplexing (OFDM) signals. More general waveforms, such as pulse-shaped multicarrier modulations received little attention so far, despite their increased robustness to high-Doppler scatterers. In this paper, we compare the performance of two correlation-based radar receivers, namely the matched filter and the symbol-based technique, when used with different pulse-shaped multicarrier waveforms. We express the signal-to-interference-plus-noise-ratio in the range-Doppler map, taking into account the pedestal (or random sidelobes) induced by the symbols. Benefits of pulse shaping is further illustrated in a realistic vehicular scenario, in presence of multiple targets and ground clutter. In this context, the symbol-based approach outperforms the matched filter while enjoying a low-computational complexity. More generally, our results reveal the multicarrier pulse shape as a relevant degree of freedom in waveform co-design approaches (e.g., cognitive radar/communication systems). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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