Radar system transmitter beamforming using occupancy map data
CN119620002APending Publication Date: 2025-03-14NXP BV
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Patent Information
- Application Number
- CN202411269677.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-09-12
- Filing Date
- 2024-09-11
- Publication Date
- 2025-03-14
AI Technical Summary
Technical Problem
Existing automotive radar systems send radar signals at the maximum power level, resulting in increased power consumption and increased radar system interference levels.
Method used
By modulating the beamforming operation of the radar signal transmitter using occupancy map data, the power levels of the radar signal in different directions are optimized to improve the power efficiency of the radar system.
Benefits of technology
It realizes that the power of the radar signal in useless directions is reduced without reducing the object detection performance, and the power consumption and interference level of the radar system are reduced.
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Smart Images
Figure CN119620002A_ABST
Abstract
An apparatus may include at least one transmitter unit and at least one receiver unit, where the at least one transmitter unit and the at least one receiver unit are configured to transmit and receive radar signals, where the at least one transmitter unit and the at least one receiver unit are co-located with a vehicle. An apparatus may include a radar processor configured to: determine an occupancy map, where the occupancy map identifies a location of an object relative to the automotive radar system; determining a beamforming weight vector w using the occupancy map; and transmitting, using the at least one transmitter unit, the radar signal using the beamforming weight vector w.
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