Multichannel processing of signals in a radar system
First Claim
1. A method of processing signals in a vehicle radar system, the method comprising:
- selecting first ones of a plurality of receive beams provided by a receive antenna system; and
coupling RF signals in each of the selected receive beams to a corresponding one of a plurality of channels in a multi-channel receiver; and
concurrently processing information in each of the RF signals in the plurality of channels.
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Accused Products
Abstract
A vehicle radar system includes a receive antenna system which concurrently provides signals from multiple receive beams to multiple channels of a multi-channel receiver. The multi-channel receiver concurrently processes the multiple signals provided by the antenna system and provides output signals suitable for further processing. The particular arrangement may also include a transmitter which generates a single or multiple transmit beams. The number of transmit beams may be the same, less than or more than the number of receive beams. This arrangement provides a vehicle radar system which concurrently processes RF signals from multiple antenna beams. By concurrently processing RF signals from multiple antenna beams in an RF receiver, the radar system can derive more accurate information concerning detected objects.
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Citations
28 Claims
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1. A method of processing signals in a vehicle radar system, the method comprising:
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selecting first ones of a plurality of receive beams provided by a receive antenna system; and
coupling RF signals in each of the selected receive beams to a corresponding one of a plurality of channels in a multi-channel receiver; and
concurrently processing information in each of the RF signals in the plurality of channels. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vehicle radar system comprising:
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a receive antenna system adapted to concurrently generate a first plurality of RF antenna beams; and
a multi-channel RF receiver having a second plurality of RF receiver channels with each of the RF receiver channels coupled to receive RF signals from said antenna system wherein the RF signals are received in at least some of the first plurality of RF antenna beams and wherein the received RF signals are concurrently processed in each of the second plurality of RF receiver channels. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A receiver in a radar system, comprising:
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a first multiplexer receiving a first set of receive beams from a beam-former circuit;
a second multiplexer receiving a second set of receive beams from the beam-former circuit, the first set of receive beams and the second set of receive beams representing a same moment in time;
a first channel for down-converting the first set of receive beams, the first channel being connected to the first multiplexer; and
a second channel for down-converting the second set of receive beams, the second channel being connected to the second multiplexer. - View Dependent Claims (21, 22, 23)
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24. A vehicle detection system comprising:
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a transmitter comprising a multi-throw switch network, the multi-throw switch network configured to provide a plurality of transmit beams; and
a transmit antenna configured to transmit the plurality of transmit beams. - View Dependent Claims (25, 26, 27, 28)
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Specification