System and method for target detection with a radar antenna
AssigneeAutoliv ASP, Inc.
InventorXueru Ding
Life of this patent
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Abstract
A system and method for controlling a radar antenna are provided. The method includes generating a first single beam antenna pattern, generating a second single beam antenna pattern and transmitting the first and second single beam antenna patterns. The method further includes using phase detection to determine angular information for a detected object based on a phase difference of received signals.
Claims19
A method for determining angular information for an object using a radar system, said method comprising:
- generating a first single beam antenna pattern;
- generating a second single beam antenna pattern;
- transmitting the first and second single beam antenna patterns, wherein the first single beam antenna pattern is narrower than the second single beam antenna pattern;
- and
- using phase detection to determine angular information for a detected object based on a phase difference of received signals.
A method of controlling a radar system to determine angular information for a detected object, said method comprising:
- powering a first and a second antenna array column of an antenna to generate a first single beam antenna pattern;
- powering only the first antenna array column to generate a second single beam antenna pattern, the first single beam antenna pattern narrower than the second single beam antenna pattern;
- and
- performing phase detection on reflected signals from the first and second single beam antenna patterns to determine angular information for a detected object.
A pulsed Doppler radar system comprising:
- a transmitter configured to transmit pulses;
- a receiver configured to receive reflected signals from the pulses;
- an antenna configured to generate a first antenna pattern and a second antenna pattern, wherein the first antenna pattern is narrower than the second antenna pattern;
- a switch to switch between the first antenna pattern and the second antenna pattern;
- and
- a processor configured to determine angle information for a detected object based on phase detection of reflected signals from the first and second antenna patterns.
Dependencies are inferred from the claim text.