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公开(公告)号：US20240200903A1
公开(公告)日：2024-06-20
申请号：US18080052
申请日：2022-12-13
Inventor： Paul D. Zemany
Abstract: Techniques are provided for guiding a projectile. A methodology implementing the techniques according to an embodiment includes generating a roll command based on a roll angle obtained from a steering map that causes a change in range and cross range of the projectile that results in a ground motion closest to a desired ground motion. The method also includes calculating a remaining maximum maneuver distance for the projectile, over a time period extending from the current time of flight to the end of flight. The calculation is based on integration a series of maximum maneuvers, obtained from the steering map, at time intervals within the time period. The method further includes generating a lift command for the projectile based on: distance between the target location and an impact point prediction (IPP) calculated at the current time of flight; an error estimate of the IPP; and the remaining maximum maneuver distance.
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公开(公告)号：US11808868B2
公开(公告)日：2023-11-07
申请号：US16972251
申请日：2019-08-30
Inventor： Paul D. Zemany , Matthew F. Chrobak
Abstract: A sensor determines the spin rate or rotation frequency of a munition body of a guided projectile relative to precision guidance munition assembly. The spin rate is used to determine launch velocity of the guided projectile early in flight before GPS is operationally active. The launch velocity is used to determine whether a corrective maneuver is needed to change the range of the guided projectile. Logic can control the canards on the canard assembly in response to the determination that a corrective maneuver is needed.
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公开(公告)号：US20210239430A1
公开(公告)日：2021-08-05
申请号：US16972251
申请日：2019-08-30
Inventor： Paul D. Zemany , Matthew F. Chrobak
Abstract: A sensor determines the spin rate or rotation frequency of a munition body of a guided projectile relative to precision guidance munition assembly. The spin rate is used to determine launch velocity of the guided projectile early in flight before GPS is operationally active. The launch velocity is used to determine whether a corrective maneuver is needed to change the range of the guided projectile. Logic can control the canards on the canard assembly in response to the determination that a corrective maneuver is needed.
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公开(公告)号：US20210231406A1
公开(公告)日：2021-07-29
申请号：US17263941
申请日：2019-08-30
Inventor： Paul D. Zemany , Matthew F. Chrobak
Abstract: A system and method to aid in guidance, navigation and control of a guided projectile including a precision guidance munition assembly is provided. The system and method obtain raw position data during flight of the guided projectile, the raw position data including a plurality of position data points from the guiding sensor for determining positions of the guided projectile, establish a window including a portion of the plurality of position data points, smooth the portion of the plurality of position data points in the window, and determine a reduced noise position estimate of the guided projectile, based, at least in part, on the smoothed portion of the plurality of position data points in the window. The system and method may determine a velocity estimate of the guided projectile and predict an impact point of the guided projectile relative to a target.
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公开(公告)号：US12050085B2
公开(公告)日：2024-07-30
申请号：US18080052
申请日：2022-12-13
Inventor： Paul D. Zemany
Abstract: Techniques are provided for guiding a projectile. A methodology implementing the techniques according to an embodiment includes generating a roll command based on a roll angle obtained from a steering map that causes a change in range and cross range of the projectile that results in a ground motion closest to a desired ground motion. The method also includes calculating a remaining maximum maneuver distance for the projectile, over a time period extending from the current time of flight to the end of flight. The calculation is based on integration a series of maximum maneuvers, obtained from the steering map, at time intervals within the time period. The method further includes generating a lift command for the projectile based on: distance between the target location and an impact point prediction (IPP) calculated at the current time of flight; an error estimate of the IPP; and the remaining maximum maneuver distance.
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Patent Agency Ranking
公开(公告)号：US12044506B1
公开(公告)日：2024-07-23
申请号：US17347976
申请日：2021-06-15
Inventor： Paul D. Zemany , Matthew F. Chrobak , Court E. Rossman
IPC: F41G7/22
CPC classification number: F41G7/2246 , F41G7/2286
Abstract: Techniques are provided for off-axis projectile guidance. λ methodology implementing the techniques according to an embodiment includes determining a maximum acceleration capability of the projectile based on flight data, control surface positions, and aerodynamic coefficients. The method also includes estimating a range from the projectile to a target. The method further includes calculating a first flight path to provide an offset radar viewing angle to the target that is offset from a longitudinal axis of the projectile and calculating a second flight path to provide for interception of the target by the projectile. The calculations are based on the maximum acceleration capability and the range from the projectile to the target. The method further includes guiding the projectile on the first flight path for an initial period of time and then guiding the projectile on the second flight path until target interception.
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公开(公告)号：US11601214B2
公开(公告)日：2023-03-07
申请号：US16253283
申请日：2019-01-22
Inventor： Paul D. Zemany , Matthew F. Chrobak , Egor V. Degtiarev
Abstract: A system and method for nulling or suppressing interfering signals directed toward moving platforms based, at least in part, on dynamic motion data of the moveable platform is provided. The system may be an interference nulling system carried by a moveable platform and may include an antenna array including two or more antenna elements that generates at least one initial steerable null radiation pattern, dynamic motion data logic that determines dynamic motion data of the moveable platform; and update logic that updates the at least one initial steerable null radiation pattern based, at least in part, on the dynamic motion data. The at least one updated steerable null radiation pattern is directed toward a direction from which interfering signals are being transmitted from an interfering signal source.
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公开(公告)号：US09210384B2
公开(公告)日：2015-12-08
申请号：US13971021
申请日：2013-08-20
Inventor： Paul D. Zemany
Abstract: A system and method for real time registration of images is disclosed. The system measures the angle rate of change and approximates attitude difference between the two cameras to provide an estimate of the relative rate of change between the two cameras. Approximating attitude difference between the two cameras reduce the time needed for initial image registration. Real time registration of images reduces the processing load and improves tracking.
Abstract translation: 公开了一种用于图像实时登记的系统和方法。 该系统测量角度变化率并近似两个摄像机之间的姿态差异，以提供两个摄像机之间的相对变化率的估计。 两个相机之间的近似姿态差异缩短了初始图像配准所需的时间。 图像的实时注册减少了处理负荷并改善了跟踪。
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公开(公告)号：US12046032B2
公开(公告)日：2024-07-23
申请号：US17178165
申请日：2021-02-17
Inventor： Michael J. Choiniere , Jay W. Coffey , Jason R. Lane , Davis A Lange , Paul D. Zemany
IPC: G06V20/17 , F41G7/22 , G01J3/28 , G06F18/2113 , G06V10/75
CPC classification number: G06V20/17 , F41G7/2253 , F41G7/2293 , G01J3/2823 , G06F18/2113 , G06V10/751
Abstract: A ground imaging system for use on a guided aerobody includes one or more lenses designed to receive EM radiation from a ground level, a filter substrate having a plurality of filters, a sensor array designed to receive the EM radiation from the filter substrate, and a processing device coupled to the sensor array. The filter substrate is located at a focal plane of the one or more lenses such that the filter substrate receives the EM radiation from the one or more lenses. The plurality of filters includes at least polarization filters and multispectral filters. The processing device is designed to analyze multispectral and polarization signatures of the electromagnetic radiation from identified objects at the ground level and determine that one or more of the objects is not a desired target based at least on the hyperspectral and polarization signatures of the one or more objects.
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公开(公告)号：US11733367B1
公开(公告)日：2023-08-22
申请号：US17230011
申请日：2021-04-14
Inventor： Paul D. Zemany , David P. Charette , Matthew F. Chrobak , Court E. Rossman
CPC classification number: G01S13/42 , F41G7/2246 , F41G7/2286
Abstract: The system and method for chromatic correlation interferometry direction finding (CIDF) used to resolve ambiguities. Ambiguities are overcome by correlating over a range of frequencies. In some cases, multiple (i.e., 2 or more) frequencies or a continuous range of frequencies are used to make a more robust correlation manifold. As the complex response manifold is frequency dependent, using a set of two or more manifolds provides a significant reduction of false peaks.
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