US 12,411,211 B2
Multistatic radar system and a method for a spatially resolved detection of an object under test
Matthias Beer, Munich (DE); Marius Brinkmann, Munich (DE); and Gerhard Hamberger, Munich (DE)
Assigned to Rohde & Schwarz GmbH & Co. KG, Munich (DE)
Filed by Rohde & Schwarz GmbH & Co. KG, Munich (DE)
Filed on Oct. 21, 2021, as Appl. No. 17/507,336.
Prior Publication US 2023/0128858 A1, Apr. 27, 2023
Int. Cl. G01S 7/41 (2006.01); G01S 7/02 (2006.01); G01S 13/00 (2006.01); G01S 13/89 (2006.01)
CPC G01S 7/412 (2013.01) [G01S 7/025 (2013.01); G01S 13/003 (2013.01); G01S 13/89 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multistatic radar system for a spatially resolved detection of an object under test, the multistatic radar system including:
an at least two-dimensional multistatic array of antenna elements having an at least partially shared coverage area, and
at least one data processing circuit coupled to the at least two-dimensional multistatic array, wherein the at least one data processing circuit is configured to:
perform beamforming, thereby obtaining at least one image of the object under test at least partially being located within the at least partially shared coverage area,
process the image obtained to resolve at least one scattering center of the object under test,
determine a spatially resolved scattering center distribution based on the at least one image obtained, and
classify the at least one scattering center with regard to at least a threat level based on the determined spatially resolved scattering center distribution, and
a user interface coupled to the at least one data processing circuit,
wherein the at least one data processing circuit is configured to forward the spatially resolved scattering center distribution to the user interface,
wherein, if the data processing circuit detects multiple scattering centers within the at least partially shared coverage area, the data processing circuit provides a notification to the user interface, and
wherein the notification provided to the user interface is triggered only if a distance between the multiple scattering centers located within the at least partially shared coverage area equals or exceeds a predetermined threshold value.