US 12,265,183 B2
Signal processing based on signal subband typing
Kumar Bhargav Viswanatha, Santa Clara, CA (US); Jose Krause Perin, Mountain View, CA (US); Rajendra Tushar Moorti, Mountain View, CA (US); and Mina Rezk, Haymarket, VA (US)
Assigned to Aeva, Inc., Mountain View, CA (US)
Filed by AEVA, INC., Mountain View, CA (US)
Filed on Oct. 3, 2023, as Appl. No. 18/376,045.
Application 18/376,045 is a continuation of application No. 17/854,798, filed on Jun. 30, 2022, granted, now 11,796,652.
Application 17/854,798 is a continuation of application No. 17/337,136, filed on Jun. 2, 2021, granted, now 11,378,667, issued on Jul. 5, 2022.
Application 17/337,136 is a continuation of application No. 16/999,954, filed on Aug. 21, 2020, granted, now 11,047,963, issued on Jun. 29, 2021.
Prior Publication US 2024/0272288 A1, Aug. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 7/493 (2006.01); G01N 29/46 (2006.01); G01S 7/4913 (2020.01); G06F 17/14 (2006.01)
CPC G01S 7/493 (2013.01) [G01N 29/46 (2013.01); G01S 7/4913 (2013.01); G06F 17/14 (2013.01); G06F 17/141 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A frequency modulated continuous wave (FMCW) light detection and ranging (LIDAR) system, comprising:
a processor;
a memory to store instructions that, when executed by the processor, cause the system to:
generate subbands in a frequency domain based on a range-dependent time domain baseband signal generated by an optical detector based on a return signal received by the LIDAR system, the return signal comprising a reflection of an optical beam transmitted by the LIDAR system;
classify each subband into one of a plurality of subband types;
select processing parameters for each subband based on a respective one of the plurality of subband types; and
process each of the subbands using the selected processing parameters for the subband for target detection.