A linear array antenna using bifilar helical elements for mobile satellite communications

Konishi, Yoshihiko; Ohtsuka, Masataka; Matsunaga, Makoto; Katagi, Takashi

doi:10.1109/aps.1994.407917

Cited by 7 publications

(1 citation statement)

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“…However, the vehicle is influenced from continuous disturbances during the operations, and its dynamics is described as a class of nonlinear systems, because the relative position and angle between the vehicle and the target undergo large variations in the short period. From the viewpoint of the radio communication field, several schemes have been proposed to the problem [2], [4], [5]. Our first objective of this paper is to propose an optimal controller design method for the precise pointing of the mobile antenna under the continuous disturbance.…”

Section: Introductionmentioning

confidence: 99%

Disturbance Attenuation Control of Mobile Antenna Using Parameter Varying Notch Filter

Nagashio

Kida

Proceedings of 2005 IEEE Conference on Control Applications, 2005. CCA 2005.

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This paper describes a pointing control of a mobile antenna mounted on a vehicle. For the precise pointing, the antenna must be controlled to point to a target under the influence of continuous disturbances acting on the vehicle. To the problem, we propose an optimal controller design method in a framework of the H∞ gain-scheduled controller synthesis. By the synthesis, the optimal controller becomes to include the parameter varying notch filter, which is effective to attenuate the various frequency disturbances. We apply the design method to a numerical model of an automobile having rotating antenna. Finally, the results are confirmed by the experiment.

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Section: Introductionmentioning

confidence: 99%