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公开(公告)号：US11175115B2
公开(公告)日：2021-11-16
申请号：US16467357
申请日：2017-01-05
Inventor： David J. Schorr , Jason H. Batchelder , Jeremy B. Gibson , James H. Steenson, Jr. , Joseph D. Vasile
Abstract: Techniques are provided for determination of a guided-munition orientation during flight based on lateral acceleration, velocity, and turn rate of the guided-munition. A methodology implementing the techniques, according to an embodiment, includes obtaining a lateral acceleration vector measurement and a velocity of the guided-munition, and calculating a ratio of the two, to generate an estimated lateral turn vector of the guided-munition. The method also includes integrating the estimated lateral turn vector, over a period of time associated with flight of the guided-munition, to generate a first type of predicted attitude change. The method further includes obtaining and integrating a lateral turn rate vector measurement of the guided-munition, over the period of time associated with flight of the guided-munition, to generate a second type of predicted attitude change. The method further includes calculating a gravity direction vector based on a difference between the first and second types of predicted attitude change.
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Patent Agency Ranking
公开(公告)号：US20210116216A1
公开(公告)日：2021-04-22
申请号：US16604011
申请日：2017-04-10
Inventor： David J. Schorr , Jason H. Batchelder , Jeremy B. Gibson , James H. Steenson, Jr.
Abstract: [A system and method for dynamic autopilot control comprising providing input to a guidance and control autopilot comprising Mach and dynamic pressure; tailoring parameters of the autopilot, the parameters comprising: roll gain; a pitch/yaw gain; a pitch/yaw loop compensator frequency; a guidance filter bandwidth; a guidance filter lead compensator frequency; and a navigation gain.
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公开(公告)号：US11480413B2
公开(公告)日：2022-10-25
申请号：US16604011
申请日：2017-04-10
Inventor： David J. Schorr , Jason H. Batchelder , Jeremy B. Gibson , James H. Steenson, Jr.
Abstract: [A system and method for dynamic autopilot control comprising providing input to a guidance and control autopilot comprising Mach and dynamic pressure; tailoring parameters of the autopilot, the parameters comprising: roll gain; a pitch/yaw gain; a pitch/yaw loop compensator frequency; a guidance filter bandwidth; a guidance filter lead compensator frequency; and a navigation gain.
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公开(公告)号：US20200096291A1
公开(公告)日：2020-03-26
申请号：US16467357
申请日：2017-01-05
Inventor： David J. Schorr , Jason H. Batchelder , Jeremy B. Gibson , James H. Steenson, Jr. , Joseph D. Vasile
Abstract: Techniques are provided for determination of a guided-munition orientation during flight based on lateral acceleration, velocity, and turn rate of the guided-munition. A methodology implementing the techniques, according to an embodiment, includes obtaining a lateral acceleration vector measurement and a velocity of the guided-munition, and calculating a ratio of the two, to generate an estimated lateral turn vector of the guided-munition. The method also includes integrating the estimated lateral turn vector, over a period of time associated with flight of the guided-munition, to generate a first type of predicted attitude change. The method further includes obtaining and integrating a lateral turn rate vector measurement of the guided-munition, over the period of time associated with flight of the guided-munition, to generate a second type of predicted attitude change. The method further includes calculating a gravity direction vector based on a difference between the first and second types of predicted attitude change.
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公开(公告)号：US10480904B2
公开(公告)日：2019-11-19
申请号：US16333860
申请日：2017-08-17
Inventor： David J. Schorr , Jeremy B. Gibson , James H. Steenson
Abstract: A device, system, and method for shaping the trajectory of a projectile employing a Gravity bias, Gbias. The system includes a seeker, a guidance filter, a pitch rate filter, an actuator, pitch/yaw/roll coupled aerodynamics, and lateral rate sensors. It receives roll orientation input to a guidance and control autopilot; it applies Additional Gbias to that produced by the null rate command to the lateral control loops of the guidance and control autopilot device. The lateral rate command is equal to the desired Additional Gbias divided by an estimate of the projectile velocity. The Additional Gbias is translated to a rate command and incorporated into guidance loop commands to boost an Inherent Gbias to shape the trajectory of the projectile to the target.
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公开(公告)号：US20190265004A1
公开(公告)日：2019-08-29
申请号：US16333860
申请日：2017-08-17
Inventor： David J. Schorr , Jeremy B. Gibson , James H. Steenson
Abstract: A device, system, and method for shaping the trajectory of a projectile employing a Gravity bias, Gbias. The system includes a seeker, a guidance filter, a pitch rate filter, an actuator, pitch/yaw/roll coupled aerodynamics, and lateral rate sensors. It receives roll orientation input to a guidance and control autopilot; it applies Additional Gbias to that produced by the null rate command to the lateral control loops of the guidance and control autopilot device. The lateral rate command is equal to the desired Additional Gbias divided by an estimate of the projectile velocity. The Additional Gbias is translated to a rate command and incorporated into guidance loop commands to boost an Inherent Gbias to shape the trajectory of the projectile to the target.
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