Land-based transmitter position determination
First Claim
1. A method for determining a location of a transmitter, the method comprising:
- (a) determining first and second positions respectively of first and second receive antennas in response to signals received at the first and second receive antennas; and
(b) determining the location of the transmitter as a function of the first and second positions.
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Accused Products
Abstract
In a local positioning system, a receiver is adapted for receiving signals from a land-based transmitter. The receiver includes an analog decorrelator for decorrelating the transmitted spread spectrum signals. A down converter connected with an antenna may be spaced away from other portions of the receiver. The down converter down converts received ranging signals and provides them to the remotely spaced receiver portions. A signal line connecting the down converter to the receiver may be operable to transmit any two or more of a reference signal provided to the down converter, the down converted intermediate frequency signals provided to the receiver, and power provided to the down converter. The receiver may be positioned adjacent to or as part of a land-based transmitter. By determining positions of two or more antennas, the location of the associated transmitter is determined.
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Citations
13 Claims
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1. A method for determining a location of a transmitter, the method comprising:
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(a) determining first and second positions respectively of first and second receive antennas in response to signals received at the first and second receive antennas; and
(b) determining the location of the transmitter as a function of the first and second positions. - View Dependent Claims (2, 3, 4)
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5. A system for determining a location of a transmitter, the system comprising:
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first and second receive antennas;
a transmit antenna;
a linkage connected with the first and second receive antennas and the transmit antenna; and
a processor operable to determine the location as a function of signals from the first and second receive antennas. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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Specification