Single Lateral Channel Aided Inertial Navigation System based on North Channel
2009
Pjotrs Trifonovs-Bogdanovs, Dmitrijs Fetisovs, Tatjana Trifonova-Bogdanova

Inertial Navigation System (INS) block diagram analysis results show that it is possible to create single-channel Inertial Navigation System (1INS) using only one channel from conventional full-channel system - lateral, longitudinal or vertical channel respectively. In the full-channel variant of INS there is a crosslink between channels and for this reason the additional external flying vehicle flight parameter sources are needed for channel crosslink compensation. In the 1INS without these additional sources system error increases significantly in comparison with full-channel INS variant. 1INS lateral channel based on North channel model is offered in this work. Simulation results of this system error model are presented. Different variants of system correction using external velocity information source are offered (heading-aided 1INS). Different models of 1INS with correction are offered, and also error model with different correction variant and its combinations simulation results are presented in this work. Obtained simulation results shows that there is significant accuracy increase of 1INS when using offered correction methods.


Atslēgas vārdi
inertial navigation, single-channel, lateral channel, North channel, aided, correction, accuracy analysis, error model, error propagation

Trifonovs-Bogdanovs, P., Fetisovs, D., Trifonova-Bogdanova, T. Single Lateral Channel Aided Inertial Navigation System based on North Channel. Transports. Aviācijas transports. Nr.31, 2009, 110.-113.lpp. ISSN 1407-8015.

Publikācijas valoda
English (en)
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