US 2025/0020766 A1 · SPARSE MIMO PHASED ARRAY IMAGING RADAR

Abstract

High-performance 4-D Sparse MEMO Phased Array imaging and object detection radars with substantially reduced hardware and processing specifications are presented for automotive, ariel, and other application spaces. The radar antennas have 2-D angular sparse array and MIMO (Multiple Input and Multiple Output) features that can be implemented with a variety of subarrays or Antenna in Packages (AiPs) greatly simplifying the system manufacturing and feasibility. The significantly reduced data processing requirements also become feasible with the sparse subarray architectures. Advanced signal processing algorithms are presented, when coupled with the sparse and MIMO features, allow improved 2-D angular resolution of objects, improved imaging, and low sidelobes allowing the resolution of weaker targets in the presence of stronger target reflections.

Claims19

Dependent claims

An antenna system, comprising:

a plurality of transmit radiating elements for transmission of electromagnetic signals;
and
a plurality of receive radiating elements for receiving electromagnetic signals;
wherein the antenna system is characterized in that:
the plurality of transmit radiating elements are arranged into separated transmit groupings;
the plurality of receive radiating elements are arranged into at least one receive grouping;
a controller coupled to the plurality of transmit and receive radiating elements for generating transmission signals for the transmit radiating elements, the controller adapted to generate signals for each of the separated transmit groupings with at least one phase difference between the separated transmit groupings;
and
a receiver coupled to the receive radiating elements for processing received signals from the separated transmit groupings at least one receive grouping;
wherein processing distinguishes received signals from each of the transmit groupings.

7 more elements

Dependencies are inferred from the claim text.

Sparse mimo phased array imaging radar

Life of this patent

Sparse mimo phased array imaging radar

Life of this patent

Abstract

Claims19