Automotive Radar System and Method for Using Same
First Claim
1. A radar system for a vehicle comprising:
- a transmit unit including a single beam transmit antenna for output of a radar signal into a target zone external to said vehicle; and
a receive unit including a single beam receive antenna capable of receiving a direct receive signal and an indirect receive signal, each of said direct and indirect receive signals being reflections of said radar signal from an object in said target zone, and said direct and indirect receive signals being summed to produce a detection signal indicating a presence of said object in said target zone.
31 Assignments
0 Petitions
Accused Products
Abstract
A radar system (44) for a vehicle (42) includes a transmit unit (56) and a receive unit (58). The transmit unit (56) includes a single beam antenna (72) for output of a radar signal (74) into a target zone (46). The receive unit (58) includes a single beam antenna (76) for receiving a direct receive signal (78) and an indirect receive signal (80). The receive signals (78, 80) are reflections of the radar signal (74) from an object (34, 36) in the target zone (46). The indirect receive signal (80) is reflected off the object (34, 36) toward a reflective panel (54) of the vehicle (42), and the indirect receive signal (80) is reflected off the reflective panel (54) for receipt at the receive antenna (76). The receive signals (78, 80) are summed to produce a detection signal (81) indicating presence of the object (34, 36) in the target zone (46).
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Citations
20 Claims
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1. A radar system for a vehicle comprising:
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a transmit unit including a single beam transmit antenna for output of a radar signal into a target zone external to said vehicle; and a receive unit including a single beam receive antenna capable of receiving a direct receive signal and an indirect receive signal, each of said direct and indirect receive signals being reflections of said radar signal from an object in said target zone, and said direct and indirect receive signals being summed to produce a detection signal indicating a presence of said object in said target zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for detecting an object in a target zone external to a vehicle comprising:
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transmitting a radar signal from a single beam transmit antenna of a transmit unit into said target zone; receiving a direct receive signal and an indirect receive signal at a single beam receive antenna of a receive unit, each of said direct and indirect receive signals being reflections of said radar signal from said object; and summing said direct and indirect receive signals to produce a detection signal indicative of a presence of said object in said target zone. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A radar system for a vehicle comprising:
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a transmit unit including a single beam transmit antenna for output of a radar signal into a target zone external to said vehicle; and a receive unit including a single beam receive antenna capable of receiving a direct receive signal and an indirect receive signal, each of said direct and indirect receive signals being reflections of said radar signal from an object in said target zone, each of said single beam transmit and receive antennas producing an antenna pattern having a main lobe and first side lobes joined to each side of said main lobe, said first side lobes being shoulder-type side lobes, and said antenna pattern being wider in azimuth than in elevation, and said direct and indirect receive signals being summed to produce a detection signal indicating a presence of said object in said target zone. - View Dependent Claims (19, 20)
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Specification