Results 181 to 190 of about 22,539 (211)
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Four-axis gimbal system application based on gimbal self-adaptation adjustment
2015 34th Chinese Control Conference (CCC), 2015Gimbal lock is a common physical phenomenon in the gimbal system. As for the three-axis gimbal system, gimbal lock could not be avoided when two axes are driven into being collinear with each other. As a result, it will lead to the loss of one degree of rotational freedom.
Ma Jie, Xu Qinbei
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AIAA Infotech@Aerospace (I@A) Conference, 2013
Mechanical gimbals are used in UAV to direct cameras to a target area, regardless of the vehicle attitude. We present an approach to replace the mechanical camera gimbal by a wide-angle fisheye lens and a high-resolution optical camera. The proposed article describes a method that computes a conventional camera image from the distorted image of a fish ...
Florian Boehm +2 more
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Mechanical gimbals are used in UAV to direct cameras to a target area, regardless of the vehicle attitude. We present an approach to replace the mechanical camera gimbal by a wide-angle fisheye lens and a high-resolution optical camera. The proposed article describes a method that computes a conventional camera image from the distorted image of a fish ...
Florian Boehm +2 more
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Fine Slaving of Outer Gimbal During Fast Steering of Dual Gimbaled Sight
2019 5th International Conference on Signal Processing, Computing and Control (ISPCC), 2019In dual gimbaled sight, Electro-optical sensors are in inner gimbals of the sight and outer gimbals have corresponding optical windows. Sizes of these windows are limited due to many reasons of cost, weight and feasibility. Also, there is small physical freedom between gimbals (inner and outer).
Zahir Ahmed Ansari +3 more
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SPIE Proceedings, 2010
Ross-Hime Designs, Inc. presents the results of its research and development of "Low Cost Light-Weight Seeker Gimbals." The Super Seeker, a patent-pending gimbal design, offers a swiveling yoke design lower in cost than current gimbal designs and weighing significantly less than traditional gimbal systems while enabling a doubling of the sensor's ...
Mark Rosheim, Gerald Sauter
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Ross-Hime Designs, Inc. presents the results of its research and development of "Low Cost Light-Weight Seeker Gimbals." The Super Seeker, a patent-pending gimbal design, offers a swiveling yoke design lower in cost than current gimbal designs and weighing significantly less than traditional gimbal systems while enabling a doubling of the sensor's ...
Mark Rosheim, Gerald Sauter
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Photogrammetria, 1955
Zusammenfassung Nachdem man ein Instrument entsprechend der zugehorigen Justieranweisung justiert hat, ergibt sich manchmal die Frage, welches die Ursache der noch verbliebenen Projektionsfehler sein kann, deren Beseitigung naturlich Fabriksspezialisten vorbehalten bleiben muss. Gegenstand der vorliegenden Untersuchung ist eine Analyse des Einflusses
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Zusammenfassung Nachdem man ein Instrument entsprechend der zugehorigen Justieranweisung justiert hat, ergibt sich manchmal die Frage, welches die Ursache der noch verbliebenen Projektionsfehler sein kann, deren Beseitigung naturlich Fabriksspezialisten vorbehalten bleiben muss. Gegenstand der vorliegenden Untersuchung ist eine Analyse des Einflusses
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2008 International Conference on Computational Intelligence for Modelling Control & Automation, 2008
In this paper, PD parameters tuning method for controlling a gimbal device is proposed. The gimbal device which is the controlled object, is one of hanging devices, and it is used to keep the camera to be the horizontal position. For example this technique has been paid to attention in the aerial photography by the RC helicopter. However, it is thought
Kazuo Kawada +4 more
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In this paper, PD parameters tuning method for controlling a gimbal device is proposed. The gimbal device which is the controlled object, is one of hanging devices, and it is used to keep the camera to be the horizontal position. For example this technique has been paid to attention in the aerial photography by the RC helicopter. However, it is thought
Kazuo Kawada +4 more
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A gimbal platform stabilization for topographic applications
AIP Conference Proceedings, 2015The aim of this work is the stabilization of a Gimbal platform for optical sensors acquisitions in topographic applications using mobile vehicles. The stabilization of the line of sight (LOS) consists in tracking the command velocity in presence of nonlinear noise due to the external environment.
MANGIAMELI, MICHELE, MUSSUMECI, Giuseppe
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Dynamic performance of a two-axis gimbaled pedestal in keyhole gimbal-lock conditions
SPIE Proceedings, 2011The common two-axis azimuth-elevation gimbaled pedestal has a full-hemispheric, horizon-to-zenith field of regard. This pedestal has no kinematic difficulties at low elevation angles. In this position, the line-of-sight of the mounted sensor is perpendicular to both the azimuth and elevation gimbal axes, which thus provide two orthogonal degrees of ...
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Gimbal Suspension Gyro: Stability, Bifurcation, and Chaos
Journal of Dynamical and Control Systems, 2001The paper deals with mechanical model of gimballed gyroscope -- balanced gimbal suspension gyro (GSG) which is installed on an immovable base. External gimbal ring is under the action of viscous friction moment and moment represented by some function of the angle between external ring plane and normal vector to internal ring plane, in steady motion ...
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High-G Gimbal Technology Studies
1979Abstract : The objective of this task is to study the gimbal technology and predict feasible concepts worthy of demonstrating a two-axes wide angle stabilized gimbal system. Acceleration environments for the high velocity projectiles are of such intensities that special bearing protection design technology is required to develop a cannon type ...
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