US 11,906,655 B2
Method and apparatus for capturing the surroundings
Martin Vossiek, Fürth (DE); Michael Gottinger, Buckendorf (DE); Peter Gulden, Erding (DE); Mark Christmann, Munich (DE); and Christoph Mammitzsch, Neubiberg (DE)
Assigned to Symeo GmbH, Neubiberg (DE)
Appl. No. 16/490,476
Filed by Symeo GmbH, Neubiberg (DE)
PCT Filed Feb. 28, 2018, PCT No. PCT/EP2018/054861
§ 371(c)(1), (2) Date Aug. 30, 2019,
PCT Pub. No. WO2018/158281, PCT Pub. Date Sep. 7, 2018.
Claims priority of application No. 10 2017 104 377.2 (DE), filed on Mar. 2, 2017; and application No. 10 2017 110 063.6 (DE), filed on May 10, 2017.
Prior Publication US 2021/0405183 A1, Dec. 30, 2021
Int. Cl. G01S 7/40 (2006.01); G01S 13/90 (2006.01); G01S 7/02 (2006.01); G01S 13/00 (2006.01)
CPC G01S 7/4021 (2013.01) [G01S 7/023 (2013.01); G01S 13/003 (2013.01); G01S 13/9021 (2019.05); G01S 13/9023 (2013.01); G01S 13/90 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A radar system for capturing surroundings of an object, the system mounted or mountable on the object, wherein the radar system comprises:
at least two non-coherent radar modules, the at least two non-coherent radar modules respectively comprising a transmitter and a receiver, the radar modules
arranged or arrangeable on the object in a distributed fashion;
at least one evaluation device configured to:
process transmitted and received signals provided by respective radar modules to establish measurement signals that are coherent in relation to each other; and
perform phase noise compensation, including:
determining variation between spectra corresponding to respective measurement signals by determining a scalar product of a first measurement signal spectrum and a second measurement signal spectrum; and
canceling a phase noise portion of a respective spectrum amongst the measurement spectra separate from determining a variation between spectra.