US 12,092,724 B2
Object range and velocity detection from varying radar pulse repetition times
Xining Yu, Kokomo, IN (US); James Fredrick Searcy, Westfield, IN (US); and Zhengzheng Li, Agoura Hills, CA (US)
Assigned to Aptiv Technologies AG, Schaffhausen (CH)
Filed by Aptiv Technologies AG, Schaffhausen (CH)
Filed on Sep. 13, 2020, as Appl. No. 17/019,320.
Claims priority of provisional application 62/902,081, filed on Sep. 18, 2019.
Claims priority of provisional application 62/901,378, filed on Sep. 17, 2019.
Prior Publication US 2024/0201358 A1, Jun. 20, 2024
Int. Cl. G01S 13/58 (2006.01); G01S 7/41 (2006.01); G01S 13/42 (2006.01); G01S 13/931 (2020.01)
CPC G01S 13/582 (2013.01) [G01S 7/415 (2013.01); G01S 13/42 (2013.01); G01S 13/931 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A device, comprising:
a transmitter configured to transmit a radar frame including a series of electromagnetic pulses having a varying pulse repetition time between each electromagnetic pulse in the series, and each electromagnetic pulse in the series having a center frequency that varies by a frequency step from the other electromagnetic pulses in the series, the pulse repetition time being based on the frequency step of the respective electromagnetic pulse;
a receiver configured to receive a corresponding series of reflected pulses that reflect from an object in response to the radar frame; and
a processor configured to determine range and velocity information of the object based on the corresponding series of reflected pulses, the range information based on a single reflected pulse of the corresponding series of reflected pulses and on combined reflected pulses of the series of reflected pulses;
wherein the transmitter is further configured to vary the pulse repetition time based on a count of a number of repetitions, an initial center frequency, and an initial pulse repetition time.