Vehicle obstacle warning radar
First Claim
1. A method for detecting an object, said method comprising:
- providing a transmitting antenna;
providing a first array of receiving antennas;
transmitting from said transmitting antenna;
measuring a magnitude and phase of a respective received signal at each of said receiving antennas of said first array;
determining a first magnitude of a first weighted sum of respective phase-compensated signals related to each of said receiving antennas of said first array;
comparing said first magnitude of said first weighted sum from said first array against a first predetermined threshold value;
comparing said first magnitude of said first weighted sum from said first array against a second predetermined threshold value; and
detecting an object by considering a ratio of said first magnitude to said first predetermined threshold value and a ratio of said first magnitude to said second predetermined threshold value.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for detecting an object using a transmitting antenna and an array of receiving antennas. The method comprises the step of transmitting a signal from the transmitting antenna. The magnitude and phase of a respective received signal at each of the receiving antennas is then measured. Next, the magnitude of a weighted sum of respective phase-compensated signals related to each of the receiving antennas is determined. The magnitude of the weighted sum is compared against a first predetermined threshold value and, optionally, a second predetermined threshold value. An object may be detected by considering a ratio of the magnitude of the weighted sum to the first predetermined threshold value and, optionally, to the second predetermined threshold value. In some embodiments, a second array of receiving antennas may be provided to facilitate the determination of the location of the object.
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Citations
14 Claims
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1. A method for detecting an object, said method comprising:
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providing a transmitting antenna; providing a first array of receiving antennas; transmitting from said transmitting antenna; measuring a magnitude and phase of a respective received signal at each of said receiving antennas of said first array; determining a first magnitude of a first weighted sum of respective phase-compensated signals related to each of said receiving antennas of said first array; comparing said first magnitude of said first weighted sum from said first array against a first predetermined threshold value; comparing said first magnitude of said first weighted sum from said first array against a second predetermined threshold value; and detecting an object by considering a ratio of said first magnitude to said first predetermined threshold value and a ratio of said first magnitude to said second predetermined threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for determining the location of an object, said method comprising:
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providing a transmitting antenna; providing a first array of receiving antennas and a second array of receiving antennas; transmitting from said transmitting antenna; measuring a magnitude and phase of a respective received signal at each of said receiving antennas of said first array and said second array; determining a first weighted sum of the magnitudes of said first array; determining a second weighted sum of the magnitudes of said second array; comparing said first weighted sum of said first array against a predetermined threshold value; comparing said second weighted sum of said second array against a predetermined threshold value; and performing position triangulation if at least one peak of said first weighted sum of said first array and at least one peak of said second weighted sum of said second array both at least exceed said respective predetermined threshold value. - View Dependent Claims (11)
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12. A method for detecting an object, said method comprising:
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providing a transmitting antenna; providing a first array of receiving antennas; transmitting from said transmitting antenna; measuring a magnitude and phase of a respective received signal at each of said receiving antennas of said first array; determining a first magnitude of a first weighted sum of respective phase-compensated signals related to each of said receiving antennas of said first array; comparing said first magnitude of said first weighted sum from said first array against a first predetermined threshold value; and detecting an object by considering a ratio of said first magnitude to said first predetermined threshold value. - View Dependent Claims (13, 14)
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Specification