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9 November 1994 Teleoperation of a mobile vehicle via a 23-GHz microwave radio link in nuclear plant environments: a feasibility study
David Kerr, T. C. West, K. Bouazza-Marouf, Jim Hewit
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Proceedings Volume 2247, Sensors and Control for Automation; (1994) https://doi.org/10.1117/12.193948
Event: Optics for Productivity in Manufacturing, 1994, Frankfurt, Germany
Abstract
Free space communication links for remote tele-operation of robots have important applications in hazardous environments. They have a distinct advantage over conventional umbilical control in that they allow potentially greater freedom when manoeuvering around obstacles, and obviate any unnecessary cable payload. Omnidirectional, short-wave radio links are widely used for such purposes. Very little consideration has yet been given to the use of microwave frequencies (10 GHz and above), whose fixed line-of-sight operating mode and high bandwidth have made them ideal for external local area networks. In this paper, we examine the broadcast characteristics of a commercial 23 GHz microwave link using a 25 cm diameter horn. Investigations were carried out in a representative environment over a wide range of distances, alignment criteria, and pathways. We describe the investigations in received signal quality for the communication of analogue video and digital data. Received signal tests using image processing equipment show the signal to noise ratio obtained under test conditions, compared to that required for adequate quality. We conclude by assessing the relative merits and disadvantages of using a microwave link for telemetry applications, compared with conventional radio and laser free space systems.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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David Kerr, T. C. West, K. Bouazza-Marouf, and Jim Hewit "Teleoperation of a mobile vehicle via a 23-GHz microwave radio link in nuclear plant environments: a feasibility study", Proc. SPIE 2247, Sensors and Control for Automation, (9 November 1994); https://doi.org/10.1117/12.193948
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KEYWORDS
Microwave radiation
Sensors
Receivers
Transceivers
Control systems
Transmitters
Image sensors
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