LOW COST POSITION AND ORIENTATION SYSTEM (LCPOS) TEST REPORT. REVISION 1

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Authors
  1. Scherzinger, B.
Corporate Authors
Applied Analytics Corp, Markham ONT (CAN);Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
LCPOS is intended to provide real-time position and 3-axis attitude for a marine environment via the integration of low cost inertial measurement unit (IMU) and a P/Y-code GPS receiver as an alternative to a high-cost Ship's INS (SINS). The integration used in LCPOS is a standard Kalman filter based inertial/GPS integration to be performed in real-time. The target vehicle is a displacement hull ship that is representative of the frigates, destroyers and support vessels in the Canadian Navy. DND/DREO has selected the Litton LN-200 IMU and the Trimble TASMAN P/Y-code GPS receiver as the sensors to be integrated in the LCPOS. The LN-200 is a small interferometric fibre-optic gyro (IFOG) based IMU whose price and performance are targeted primarily for the "tactical" market (fire-and-forget missiles and "smart" munitions) where low cost is critical factor. The TASMAN GPS receiver is P/Y-capable when keyed and is therefore able to provide 18 meter R95 and 0.2 m/s V95 performance levels that are typically specified for keyed military receivers. By integrating a low-cost IMU whose performance is relatively poor with a highly accurate GPS receiver, it is expected that the blended navigation solution accuracy should be adequate for the stated purpose of navigation and gun stabilization and pointing. The LCPOS is intended to demonstrate this expectation in a typical marine environment.
Keywords
Low Cost Position and Orientation System (LCPOS)
Report Number
40908289-REV-1;DREO-CR-96-602 — Contractor Report (Final)
Date of publication
21 Mar 1996
Number of Pages
206
DSTKIM No
96-02950
CANDIS No
499493
Format(s):
Hardcopy;Document Image stored on Optical Disk

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