-
公开(公告)号：US11435430B2
公开(公告)日：2022-09-06
申请号：US17112118
申请日：2020-12-04
Inventor： Peter Dusaitis , Matthew F. Chrobak , Brian J. Smith , Paul D. Zemany
Abstract: A method for launching a round from an airborne platform, receiving a plurality of RF signals at the round, determining an amount of time between a first and second received RF signal, where the second signal is a multi-path signal and the first signal is a direct path signal. An altitude of the round is determined based on the delay between the first and second received signal and aligning the round's flight path with an initial velocity vector of the aircraft platform to reduce dispersion. The round can include a plurality of sensors for detecting the RF signals. The second received RF signal may be a multi-path signal having been reflected off of the earth's surface or another object on the earth's surface. The altitude of the round can be determined using the known altitude of the airborne platform, the delay of time between the first and second received signals, and the speed of light.
-
公开(公告)号：US11342687B1
公开(公告)日：2022-05-24
申请号：US17235271
申请日：2021-04-20
Inventor： Court E. Rossman , Maxwell L. Affleck , Matthew F. Chrobak , James F. Fung , Paul D. Zemany
Abstract: An endfire antenna structure is disclosed that is for use on aerodynamic systems. The antenna structure includes a first layer of patterned metal, a second layer of patterned metal, and a stack of material layers that includes the first layer of patterned metal and the second layer of patterned metal. The first layer of patterned metal includes a plurality of parallel slots etched through the metal. The second layer of patterned metal includes a tapered radio frequency (RF) feedline having a narrow end coupled to an input/output (I/O) antenna connection. The second layer of patterned metal is aligned over the first layer of patterned metal such that the tapered RF feedline has a length that extends across the plurality of parallel slots. The stack of material layers is flexible such that the stack of material layers is configured to wrap at least partially around the fuselage of an aerodynamic system.
-
公开(公告)号：US11287233B2
公开(公告)日：2022-03-29
申请号：US16960971
申请日：2019-08-30
Inventor： Paul D. Zemany , Matthew F. Chrobak
IPC: F42B10/26
Abstract: A guided projectile including a precision guidance munition assembly utilizes angular rate sensors to sample a first angular velocity of the precision guidance munition assembly from the first angular rate sensor at a first time, sample a second angular velocity of the precision guidance munition assembly from the second angular rate sensor at the first time, generate a coning command based, at least in part, on the first angular velocity and the second angular velocity, and apply the coning command to the canard assembly. The range may be decreased or increased based on the coning commands.
-
公开(公告)号：US11698244B2
公开(公告)日：2023-07-11
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.
-
公开(公告)号：US20220260340A1
公开(公告)日：2022-08-18
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
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.
-
Patent Agency Ranking
公开(公告)号：US10942013B2
公开(公告)日：2021-03-09
申请号：US16754822
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. The system and method receive position estimates of the guided projectile from a guiding sensor, determine predicted impact points of the guided projectile relative to a target based on the position estimates, determine miss distances of the guided projectile relative to the target, determine smoothed miss distances based, at least in part, on the determined miss distances, and process updated steering commands to steer the guided projectile based on the smoothed miss distances.
-
公开(公告)号：US10907936B2
公开(公告)日：2021-02-02
申请号：US16414851
申请日：2019-05-17
Inventor： Paul D. Zemany , Matthew F. Chrobak , Egor V. Degtiarev
Abstract: A system and method for state estimation in spinning projectiles is provided. The state estimation is based, at least in part, on magnetic sensor data, angular velocity data, and correction terms applied to the magnetic sensor data and the angular velocity data. The system and method for state estimation in spinning projectiles estimates roll angles and roll rates of the spinning projectiles. The roll angle and roll rate estimates allow steering commands to be applied to steer the spinning projectiles in the proper direction.
-
公开(公告)号：US11435165B2
公开(公告)日：2022-09-06
申请号：US17112012
申请日：2020-12-04
Inventor： Brian J. Smith , Matthew F. Chrobak , Peter Dusaitis , Paul D. Zemany
Abstract: A narrow band antenna is configured to guide a munition toward a target location during a flight of the munition from a launch location toward the target location. The antenna has a first mode of operation operable during a first portion of the flight at a first bandwidth, and a second mode of operation operable during a second portion of the flight at a second bandwidth, the second bandwidth being a harmonic of the first bandwidth, and may be a third harmonic of the first bandwidth. The method includes transmitting a target location information to the munition in the first bandwidth during the first portion of the flight and then transmitting the target location information to the munition in the second bandwidth during the second portion of the flight. The first band may be X-band and the second band may be Ka-band.
-
公开(公告)号：US20220179034A1
公开(公告)日：2022-06-09
申请号：US17112118
申请日：2020-12-04
Inventor： Peter Dusaitis , Matthew F. Chrobak , Brian J. Smith , Paul D. Zemany
Abstract: A method for launching a round from an airborne platform, receiving a plurality of RF signals at the round, determining an amount of time between a first and second received RF signal, where the second signal is a multi-path signal and the first signal is a direct path signal. An altitude of the round is determined based on the delay between the first and second received signal and aligning the round's flight path with an initial velocity vector of the aircraft platform to reduce dispersion. The round can include a plurality of sensors for detecting the RF signals. The second received RF signal may be a multi-path signal having been reflected off of the earth's surface or another object on the earth's surface. The altitude of the round can be determined using the known altitude of the airborne platform, the delay of time between the first and second received signals, and the speed of light.
-
公开(公告)号：US20200340787A1
公开(公告)日：2020-10-29
申请号：US16960971
申请日：2019-08-30
Inventor： Paul D. Zemany , Matthew F. Chrobak
IPC: F42B10/26
Abstract: A guided projectile including a precision guidance munition assembly utilizes angular rate sensors to sample a first angular velocity of the precision guidance munition assembly from the first angular rate sensor at a first time, sample a second angular velocity of the precision guidance munition assembly from the second angular rate sensor at the first time, generate a coning command based, at least in part, on the first angular velocity and the second angular velocity, and apply the coning command to the canard assembly. The range may be decreased or increased based on the coning commands.
-
-
-
-
-
-
-
-
-
Search Results
23
records
(took 0.028 seconds)
