US 12,436,238 B2
Emulation of spatially distributed objects with a sparsely populated array of radar target simulators
Bernhard Holzinger, Baden Wuerttemberg (DE); Tom Vandeplas, Rotselaar (BE); Gregory S. Lee, Mountain View, CA (US); and Karam Noujeim, Santa Clara, CA (US)
Assigned to KEYSIGHT TECHNOLOGIES, INC., Santa Rosa, CA (US)
Filed by Keysight Technologies, Inc., Santa Rosa, CA (US)
Filed on Feb. 24, 2023, as Appl. No. 18/113,848.
Prior Publication US 2024/0288545 A1, Aug. 29, 2024
Int. Cl. G01S 7/40 (2006.01); G01S 13/931 (2020.01)
CPC G01S 7/4095 (2021.05) [G01S 7/4086 (2021.05); G01S 13/931 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system for receiving a radar signal transmitted by a radar device under test (DUT), and transmitting an emulated echo signal reflected from an emulated target to the radar DUT in response to the radar signal, the system comprising:
a plurality of antennae disposed in an array of rows and columns;
a plurality of radar target simulators (RTS's), one or more of the plurality of RTS's being selectively connected to each of rows or columns of the plurality of antennae, wherein the plurality of antennae are adapted to receive signals selectively from the one or more RTS's connected to the column or row, and to transmit the signals to the DUT; and
a switching matrix adapted to selectively switch between selected antennae in each of the columns or each of the rows of the plurality of antennae to connect selected respective RTS's of the plurality of RTS's to selected active antennae of the plurality of antennae in a time division manner.