ISSN:
1521-1886
Source:
Springer Online Journal Archives 1860-2000
Topics:
Architecture, Civil Engineering, Surveying
,
Geosciences
Notes:
A significant impediment to real-time centimeter survey and vehicle guidance in difficult reception environments is the underlying signal tracking performance of the receiver. A number of researchers have investigated receiver signal tracking enhancements that take advantage of intersatellite path correlations, of particular benefit in environments with multiple satellite attenuations and blockages. This article surveys work in the area, with a focus upon an optimal estimation scheme known as integrated demodulation/navigation (IDN). By contrast with other techniques, IDN employs a high update rate extended Kalman filter to combine and process raw correlator data across satellites. Nonlinear loop simulations of real time kinematic (RTK) tracking during high-g aircraft maneuvers with vehicle-induced blockages are used to illustrate the filtering method and it s robustness. © 1999 John Wiley & Sons, Inc.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/PL00012790
