Systems and methods for determining bearing
AssigneeL-3 Communications Corporation
InventorMark Dean Smith
Life of this patent
Estimating the term…
Abstract
A system determines bearing for situational awareness. The system may include a receiver, a processor, and a memory comprising an engine for performing a method. The method includes receiving signals using directional reception; receiving positional data; calculating a correction amount; and applying the correction amount to subsequent uncorrected bearings to provide corrected bearings. Positional data may be received in any conventional format including data link, ADS-B, and MODE S. Positional data may be determined in the target using a global positioning system. The system may provide a signal to display the corrected bearing and/or provide traffic alerting and collision avoidance advisories.
Claims28
A method for determining corrected bearings, the method comprising:
- a step for determining a first uncorrected bearing in accordance with signals received using directional reception;
- a step for calculating a correction amount in accordance with the first uncorrected bearing and received positional data;
- and a step for applying the correction amount to subsequently determined uncorrected bearings to provide the corrected bearings.
A system for determining corrected bearings, the system comprising:
- means for determining a first uncorrected bearing in accordance with signals received using directional reception;
- means for calculating a correction amount in accordance with the first uncorrected bearing and received positional data;
- and means for applying the correction amount to subsequently determined uncorrected bearings to provide the corrected bearings.
A method for situational awareness performed by a system aboard a host vehicle, the method comprising in sequence:
- a step for determining a first uncorrected bearing in accordance with a first signal and a direction, the first signal associated with a first target relative to the host vehicle, the first signal in further accordance with directional reception from the direction;
- a step for determining a correct-bearing in accordance with received positional data, the data being in accordance with the direction;
- a step for determining a correction amount in accordance with the first uncorrected bearing and the correct bearing;
- a step for determining a second uncorrected bearing in accordance with a second signal, the second signal associated with a second target relative to the host vehicle, the second signal in further accordance with directional reception from the direction;
- and a step for determining a corrected bearing in accordance with the second uncorrected bearing, the correction amount, and the direction.
A method for situational awareness performed by a system aboard a host vehicle, the method comprising:
- a step for determining a first uncorrected bearing in accordance with a first signal and a direction, the first signal associated with a first target relative to the host vehicle, the first signal in further accordance with directional reception from the direction;
- a step for determining a first elevation of the first target relative to the host vehicle;
- a step for determining a correct bearing in accordance with received positional data, the data being in accordance with the direction and the first elevation;
- a step for determining a correction amount in accordance with the first uncorrected bearing and the correct bearing;
- a step for determining a second uncorrected bearing in accordance with a second signal, the second signal associated with a second target relative to the host vehicle, the second signal in further accordance with directional reception from the direction;
- a step for determining a second elevation of the second target;
- and a step for determining a corrected bearing in accordance with the second uncorrected bearing, the correction amount, the direction, and the second elevation.
Dependencies are inferred from the claim text.