AN ERROR SENSITIVITY MODEL FOR DOPPLER POSITIONING USING TRANSIT SATELLITES

Authors
  1. McMillan, J.C.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
The Transit satellite positioning system is a commonly used navigation aid and was included in the DREO developed Marine Integrated Navigation System (MINS-B II) and Primary Land Arctic Navigation System (PLANS). MINS and PLANS are both Kalman filter based multi-sensor optimally integrated navigation systems and as such require detailed stochastic and deterministic error models for all of their sensors. The paper provides a detailed geometric derivation of the deterministic error model relating the position error of a Transit satellite Doppler position fix (or similarly a SARSAT fix) to the error in the velocity and height that is fed into the Transit receiver (or assumed for the SARSAT transponder). This error model is presented in the form of explicit functions of variables which are normally provided by a Transit receiver with each position fix, namely the satellite maximum elevation angle, the satellite direction of travel and the receiver latitude. TRUNCATED
Report Number
DREO-1015 —
Date of publication
15 Aug 1989
Number of Pages
142
DSTKIM No
90-00440
CANDIS No
62718
Format(s):
Hardcopy;Originator's fiche received by DSIS

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