C-MIGITS II Design and Performance

Michael K. Martin, Bruce C. Detterich

Abstract:	Numerous applications can benefit from use of integrated INS/GPS technology. For several years, Boeing Autonetics has been developing a family of integrated Inertial Navigation System/Global Positioning System (INS/GPS) products, Miniature Integrated GPS/INS Tactical System (MIGITSä), for off-the-shelf employment by various applications that require good performance at a low cost. This paper describes the most recent, coarse/acquisition (C/A) code, MIGITSä product: C-MIGITSä II. First, the product architecture and overall design approach are presented. The C-MIGITSä II design is then discussed in more detail, along with key performance parameters. C-MIGITSä II was developed for applications that place a strong premium on small size and low cost, and can either tolerate C/A code accuracy or can employ differential corrections. It uses the Boeing solid state digital quartz inertial measurement unit (DQI IMU) in conjunction with a Rockwell 5-channel MicroTrackerä low power (LP) commercial GPS engine. These are packaged in a small hermetic enclosure. The product features small size (54 cubic inches) and low weight (2.4 pounds). A tightly coupled navigation mechanization combines the raw IMU and GPS outputs in a single Kalman filter. C-MIGITSä II represents a low-cost, in-production, commercial off-the-shelf, nondevelopmental-item (COTS/NDI) product that can be beneficially employed in a variety of commercial and military applications.
Published in:	Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997) September 16 - 19, 1997 Kansas City, MO
Pages:	95 - 116
Cite this article:	Martin, Michael K., Detterich, Bruce C., "C-MIGITS II Design and Performance," Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997), Kansas City, MO, September 1997, pp. 95-116.
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