Topic
Guidance system
About: Guidance system is a research topic. Over the lifetime, 4282 publications have been published within this topic receiving 45964 citations.
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TL;DR: The active pixel sensor, the possible successor to CCDs, potentially features the same sensitivity and performance of the CCD with additional improvements, and its potential application to guidance and navigation systems is discussed.
Abstract: Charge-coupled devices (CCDs) have been used extensively in the past in star trackers and fine guidance systems. A new technology, the active pixel sensor, is a possible successor to CCDs. This technology potentially features the same sensitivity and performance of the CCD with additional improvements. These improvements include random access capability, easy window-of- interest readout, non-destructive readout for signal-to-noise improvement, high radiation tolerance, simplified clocking voltages, and easy integration with other on-chip signal processing circuitry. The state-of-the-art of this emerging technology and its potential application to guidance and navigation systems is discussed.
28 citations
TL;DR: The article discusses the requirements for communication architecture to command both the tractor and the implement for guidance over an ISO 11783 network, and proposes additional messages for theISO 11783 standard.
28 citations
TL;DR: An effective motion guidance system equipped upon a robotic walking assistant to emulate the biological rhythm for the practical daily use using a pair of force-sensing handles and an intelligent learning scheme to derive the proper driving force from the measured grip force is proposed.
28 citations
TL;DR: A novel approach to model underground utilities for a machine guidance system to provide visual guidance to the operator and an uncertainty buffer zone is proposed that enclosed the true location of the utility as an extra safety measure to avoid a utility strike during excavation.
28 citations
TL;DR: In this article, an automatic guidance system based upon two position sensors was designed to follow a predetermined path and an algorithm, using the kinematic behavior of tractor movement, was developed to determine steering angle to reduce lateral position error.
Abstract: An automatic guidance system based upon two position sensors was designed to follow a predetermined path. An algorithm, using the kinematic behavior of tractor movement, was developed to determine steering angle to reduce lateral position error. The algorithm was evaluated through use of computer simulation and verified in field experiments. When position-measurement error of the guidance system was less than 5 cm and distance measurement interval was less than 20 cm, the system would guide with a root-mean-squared error of less than 5 cm. More accurate measurements of tractor position and yaw angle and also faster error processing are required to improve field performance of the guidance system.
28 citations