Tata Consultancy Services Limited

Krishna Kanth Rokkam

Arpan Pal

Tapas Chakravarty

Achanna Anil Kumar

Andrew Gigie

Kriti Kumar

Angshul Majumdar

Aditi Kuchibhotla

Existing multistatic configurations of Radar systems requires a direct LoS signal and/or time synchronization among the Radar transmitter and the multistatic distributed Radar receivers. The present disclosure provides a phaseless frequency-modulated continuous-wave multistatic Radar (PFMR) imaging that relaxes requirement of the direct LoS signal and only requires a plurality of parameters of a FMCW signal comprising a chirp signal rate, a carrier frequency and, a period of chirp to be known. Further, it also removes condition of the time synchronization among a plurality of FMCW multistatic distributed Radar receivers. However, because of absence of the time synchronization among a plurality of FMCW multistatic distributed Radar receivers, an unknown random phase offset appears after deramping. The present disclosure eliminates the unknown random phase offset, by performing autocorrelation function on a mixed signal, resulting in a phaseless measurement data corresponding to a plurality of FMCW Radar imaging signals.

Method and systems for phaseless frequency-modulated continuous-wave multistatic radar imaging

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Bengaluru, India

Krishna Kanth Rokkam