Back to results
US 2020/0080824 A1Published application
Accurate range-to-go for command detonation
AssigneeBAE Systems Information and Electronic Systems Integration Inc.
InventorsMichael J. CHOINIERE, Bruce WINKER
Life of this patent
Estimating the term…
Abstract
The system and method for accurately determining range-to-go for the command detonation of a projectile. Using dual laser and/or radio frequency detectors on the tail and on the nose of a spinning projectile to determine the range-to-go, time-to-go, or lateral offset from the projectile to the target.
Claims21
A method for controlling detonation, comprising:
- providing a projectile comprising a tail portion and a front portion;
- detecting a laser signal via a tail detector mounted about the tail portion of the projectile;
- determining a first time at which the laser signal is detected via the tail detector;
- detecting a reflected laser signal via a front detector mounted on the front portion of the projectile, the reflected laser signal being the laser signal that has reflected off a target;
- determining a second time at which the reflected laser signal is detected via the front detector;
- comparing the first time to the second time to determine a time delay;
- determining a lateral offset between the projectile and the target using the time delay;
- and
- determining an angle, theta, using the lateral offset and the time delay to determine the detonation of the projectile.
6 more elements
A method for controlling detonation, comprising:
- providing a projectile comprising a tail portion and a front portion;
- detecting a first RF signal via a tail detector mounted on the tail portion of the projectile;
- determining a first time at which the first RF signal is detected via the tail detector;
- detecting a reflected RF signal via a front detector mounted on the front portion of the projectile, the reflected RF signal being the first RF signal that has reflected off a target;
- determining a second time at which the reflected RF signal is detected via the front detector;
- comparing the first time to the second time to determine a time delay;
- determining a lateral offset between the projectile and the target;
- and
- determining an angle, theta, using the lateral offset and the time delay between detection by the tail detector and detection by the front detector to accurately control the detonation.
6 more elements
A guided munition, comprising;
- a tail sensor located on a tail portion of the guided munition for detecting a laser beam;
- a forward sensor located on a forward portion of the guided munition and detecting a reflected signal from a target;
- a computer readable storage device having instructions, which when executed by a processor, cause the processor to execute:
- determining a first time at which the laser beam is detected via the tail detector;
- determining a second time at which the reflected signal is detected via the front detector;
- comparing the first time to the second time to determine a time delay;
- determining a lateral offset between the guided munition and the target using the time delay;
- determining a detonation start time when the guided munition is approximately perpendicular to the target;
- and
- determining the detonation time using the lateral offset and the time delay.
7 more elements
Dependencies are inferred from the claim text.