METHOD AND APPARATUS FOR NON-LINE-OF-SIGHT DETECTION AND CODED RADAR SIGNALS
First Claim
Patent Images
1. A method for object detection, comprising:
- transmitting a sounding signal;
determining a clutter signature based on the sounding signal;
transmitting an object detection signal;
receiving a return object detection signal;
determining a return time of the object detection signal;
determining a location of a detected object by using the return time;
filtering out the clutter signature from the return object detection signal;
producing a filtered return object detection signal based on the filtering; and
extracting motion of the detected object by using the filtered return object detection signal.
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Abstract
Radar systems are disclosed to detect objects in non-line-of-sight (“NLOS”) areas. A clutter signature is used to determine a location and motion of an object.
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Citations
20 Claims
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1. A method for object detection, comprising:
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transmitting a sounding signal; determining a clutter signature based on the sounding signal; transmitting an object detection signal; receiving a return object detection signal; determining a return time of the object detection signal; determining a location of a detected object by using the return time; filtering out the clutter signature from the return object detection signal; producing a filtered return object detection signal based on the filtering; and extracting motion of the detected object by using the filtered return object detection signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A radar sensing unit, comprising:
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a sounding signal module for transmitting a sounding signal to determine a clutter signature; a memory unit storing the clutter signature; a radar controller generating, controlling, and interpreting an object detection signal; a transmit antenna unit coupled to the radar controller, adapted to transmit the object detection signal; a receive antenna unit coupled to the radar controller, adapted to receive a return object detection signal; and a non-line of sight module coupled to the transmit antenna unit and the receive antenna unit adapted to; determine a location of a detected object by using a return time of the object detection signal; filter out the clutter signature from the return object detection signal to produce a filtered return object detection signal; and extract motion of the detected object by using the filtered return object detection signal. - View Dependent Claims (16, 17, 18, 19)
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20. A system for object detection, comprising:
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a transmit antenna to transmit a sounding signal and an object detection signal; a receive antenna to receive a return sounding signal and a return object detection signal; a sounding signal module to determine a clutter signature based on the return sounding signal; and a non-line of sight module to; determine a return time of the object detection signal; determine a location of a detected object by using the return time; filter out the clutter signature from the return object detection signal to produce a filtered return object detection signal; and extract motion of the detected object by using the filtered return object detection signal.
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Specification