US 12,092,726 B2
Methods and systems for millimeter wave assisted vehicle navigation
Marek Fojtach, Brno (CZ)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Dec. 10, 2021, as Appl. No. 17/548,032.
Prior Publication US 2023/0184919 A1, Jun. 15, 2023
Int. Cl. G01S 13/60 (2006.01); G01S 13/58 (2006.01); G01S 13/86 (2006.01); G01S 13/933 (2020.01); G01S 19/49 (2010.01)
CPC G01S 13/60 (2013.01) [G01S 13/583 (2013.01); G01S 13/589 (2013.01); G01S 13/86 (2013.01); G01S 13/933 (2020.01); G01S 19/49 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of providing navigation information for a vehicle, the method comprising:
determining that there has been a GPS signal loss with respect to a GPS receiver;
in response to determining that there has been a signal loss, generating a frequency-modulated continuous wave (FMCW) signal;
transmitting, by a plurality of radar transmitters each having a beam direction, the FMCW signal as radio waves;
receiving, by a corresponding plurality of receivers, reflected radio signals;
determining, by a radar signal processor, individual beam velocities of the vehicle in each of the beam directions;
combining the individual beam velocities;
generating, based on the combined beam velocities, a body velocity vector;
combining input from the radar signal processor including the generated body velocity vector and a previous known vehicle position; and
determining, based on the combined input, a real-time position and velocity information for the vehicle.