A Hybrid Integrity Solution for Precision Landing and Guidance
Abstract
NAVSYS Corporation has designed a hybrid integrity monitoring solution for precision approach and landing in a GPS environment degraded by RF interference. The integrity solution described in this paper leverages the capabilities of next generation digital spatial processing and ultra-tightly-coupled (UTC) GPS/inertial integrated military User Equipment (UE). The design includes a spatial environment integrity monitor, a GPS/inertial RAIM solution that allows detection of small error drift rates before the blended solution can be corrupted and an integrity monitoring function embedded within the Kinematic Carrier Phase Tracking (KCPT) algorithms which provides a level of confidence on the final KCPT solution. Simulation results showing the expected performance of some aspects of this multi-level integrity monitoring approach are presented. A design for an aircraft GPS/inertial digital spatial processing receiver, the HAGR-A, is also included. This receiver, which is based on the NAVSYS Software GPS Receiver, will be used as a test bed for implementation and testing of these integrity monitoring techniques.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 2004
- Accession Number
- ADA444445
Entities
People
- Alison K. Brown
- Kenn L. Gold