1. Comparison of Correlation-Based OFDM Radar Receivers
- Author
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Cyrille Enderli, Steven Mercier, Stephanie Bidon, Damien Roque, Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE), Thales (FRANCE), Département Electronique, Optronique et Signal (DEOS), Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO), and Thales LAS France
- Subjects
Orthogonal frequency-division multiplexing ,Computer science ,Orthogonal frequency-division multiplexing (OFDM) ,Aerospace Engineering ,Random sidelobes ,02 engineering and technology ,Multiplexing ,law.invention ,symbols.namesake ,0203 mechanical engineering ,law ,Waveform ,Traitement du signal et de l'image ,Electrical and Electronic Engineering ,Radar ,Resilience (network) ,Radar-communications ,RadCom ,020301 aerospace & aeronautics ,Matched filtering ,Passive bistatic radar (PBR) ,Bistatic radar ,Waveform sharing ,symbols ,Clutter ,Reciprocal fitering ,Doppler effect ,Algorithm ,[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing - Abstract
International audience; Various correlation-based receivers have been proposed in passive bistatic and active monostatic radar exploiting information-bearing orthogonal frequency-division multiplexing (OFDM) transmissions, but too little has been dedicated to establishing their relations and advantages over each other. Accordingly, this paper provides an analytical comparison of the most commonly encountered filters, along with a performance analysis regarding three criteria: computational complexity, signal-to-interference-plus-noise-ratio and resilience to ground clutter. The last two especially assess the possible detrimental effects of the random sidelobes (or pedestal) induced by the data symbols in the range-Doppler map. Although simulations show that none of the filters performs unanimously better, the ones employing circular correlations globally evidence attractive results.
- Published
- 2020