Miniature Integrated Inertial/Satellite Reference and Navigation System

B.A. Blazhnov, L.P. Nesenjuk, V.G. Peshekhonov, L.P. Staroseltzev

Abstract:	A miniature low-cost integrated inertialkatellite reference and navigation system A4ininavigation for small vessels is described, the results of its laboratory, car and marine trials are presented. The system includes a strapdown In-ertial Measurement Unit (IMIJ), Onboard Microcomputer (OMC) and universal GPS/GLONASS receiver. Dry tuned and fiber-optic rate gyros and pendulum closed-loop ac-celerometers have been chosen for two types of IMU. The OMC design is based on standard PC-104 digital boards. It has an analog input for IMU data and serial ports for output data transmission and for GPS/GLONASS data reception. Four types of universal GPS/GLONASS re-ceivers have been examined for use in the system. Besides the receivers mentioned above, any GPS receiver with the serial output of the WA standard can also be used. The software provides two modes of the system operation: with the satellite receiver or without it. In the first mode, as well as during short-time outages of satellite informa-tion, the system generates’;a completle set of navigation and reference output data. When the GNSS information is not available, the system may be used as a roll, pitch, yaw and heave sensor. The measurement of the corresponding angular rates as well as vertical acceleration and velocity is also provided in this mode. The system meets the following requirements for limiting errors, including those which arise during short-time out-ages of satellite information of up to 100 sec duration: Position 75m Velocity 0.25 mkec Rocking and yaw angles 0.2 deg Three components of angular velocity 0.1 degfsec Azimuth direction storage 0.2 deglmin
Published in:	Proceedings of the 55th Annual Meeting of The Institute of Navigation (1999) June 27 - 30, 1999 Royal Sonesta Hotel Cambridge, MA
Pages:	169 - 176
Cite this article:	Blazhnov, B.A., Nesenjuk, L.P., Peshekhonov, V.G., Staroseltzev, L.P., "Miniature Integrated Inertial/Satellite Reference and Navigation System," Proceedings of the 55th Annual Meeting of The Institute of Navigation (1999), Cambridge, MA, June 1999, pp. 169-176.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In