US 11,994,608 B2
Method and device for non-coherent distributed full-duplex transmission radar systems
Michael Gottinger, Buckenhof (DE); Igor Bilous, Neubiberg (DE); Peter Georg Gulden, Erding (DE); and Martin Vossiek, Fürth (DE)
Assigned to Symeo GmbH, Nuebiberg (DE)
Filed by Symeo GmbH, Nuebiberg (DE)
Filed on May 25, 2021, as Appl. No. 17/330,094.
Application 17/330,094 is a continuation of application No. PCT/EP2019/073857, filed on Sep. 6, 2019.
Claims priority of application No. 102018129795.5 (DE), filed on Nov. 26, 2018.
Prior Publication US 2022/0043105 A1, Feb. 10, 2022
Int. Cl. G01S 7/00 (2006.01); G01S 7/35 (2006.01); G01S 13/82 (2006.01); G01S 13/93 (2020.01); G01S 13/931 (2020.01); G01S 13/933 (2020.01)
CPC G01S 7/006 (2013.01) [G01S 7/35 (2013.01); G01S 13/825 (2013.01); G01S 13/931 (2013.01); G01S 13/933 (2020.01); G01S 2013/9316 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A radar method for exchanging signals between at least two non-coherent transceiver units, the method comprising:
aligning clock offsets and/or clock rates of respective clock sources of the at least two transceiver units;
performing a full-duplex measuring process, in which a first transmit signal is transmitted from a first transceiver unit to a second transceiver unit and a second transmit signal is transmitted from the second transceiver unit to the first transceiver unit, the measuring process comprising generating a comparison signal in each of the first transceiver unit and the second transceiver unit by mixing and/or correlating the first transmit signal with a received second transmit signal and vice versa, respectively; and
exchanging the comparison signals between the transceiver units as part of the full-duplex measuring process:
wherein the alignment of clock offsets and/or clock rates is performed prior to the full-duplex measuring process, such that a time offset and/or a frequency offset between the transmit signals remains at least substantially constant during a transmission time of the full-duplex measuring process.