Method of operating a pulsed radar device and pulsed radar device
AssigneeNXP B.V.
InventorsWolfgang Küchler, David Lugitsch
Life of this patent
Estimating the term…
Abstract
A radar system can improve performance by estimating a channel impulse response (CIR) in a way that accounts for noise arising from asymmetric interference. The system transmits a first channel-sounding sequence (CSS) that includes a first pulses and a second CSS that includes second pulses. The second pulses are complements of the first pulses. A first CIR corresponding to the first CSS and a second CIR corresponding to the second CSS are combined to produce an overall CIR that reduces or eliminates artefacts caused by asymmetric interference.
Claims12
A method of operating a pulsed radar device, the method comprising:
- transmitting a first channel sounding sequence (CSS) comprising first pulses and transmitting a second CSS comprising second pulses, wherein the second pulses are complements of the first pulses;
- receiving reflections of the first CSS from one or more objects and reflections of the second CSS from the one or more objects;
- and
- calculating an overall channel impulse response (CIR) using the reflections of the first CSS and the reflections of the second CSS, wherein calculating the overall CIR comprises:
- calculating a first CIR using the first reflections;
- calculating a second CIR using the second reflections;
- and
- generating the overall CIR by combining the first CIR with the second CIR,
- wherein combining the first CIR with the second CIR at least partially cancels asymmetric distortion of the first CSS and the second CSS present in the first CIR and the second CIR.
A pulsed radar device, comprising:
- processing circuitry;
- transmitter circuitry coupled to the processing circuity;
- and
- receiver circuitry coupled to the processing circuitry;
- wherein the processing circuitry is configured to:
- transmit, using the transmitter circuitry, a first channel sounding sequence (CSS) comprising first pulses and transmitting a second CSS comprising second pulses, wherein the second pulses are complements of the first pulses;
- receive, using the transmitter circuitry, reflections of the first CSS from one or more objects and reflections of the second CSS from the one or more objects;
- and
- calculate an overall channel impulse response (CIR) using the reflections of the first CSS and the reflections of the second CSS, wherein calculating the overall CIR comprises:
- calculating a first CIR using the first reflections;
- calculating a second CIR using the second reflections;
- and
- generating the overall CIR by combining the first CIR with the second CIR,
- wherein combining the first CIR with the second CIR at least partially cancels asymmetric distortion of the first CSS and the second CSS present in the first CIR and the second CIR.
Dependencies are inferred from the claim text.