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1. (WO2018106311) SIGNALS OF OPPORTUNITY AIDED INERTIAL NAVIGATION

Pub. No.:    WO/2018/106311    International Application No.:    PCT/US2017/053018
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Sat Sep 23 01:59:59 CEST 2017
IPC: G01S 11/10
G01C 21/16
Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventors: KASSAS, Zak M.
MORALES, Joshua J.
Title: SIGNALS OF OPPORTUNITY AIDED INERTIAL NAVIGATION
Abstract:
A signal of opportunity (SOP)-aided inertial navigation system (INS) framework provides various technical solutions to technical problems facing GNSS implementations. A mobile receiver, whether handheld or vehicle-mounted, has access to Global Navigation Satellite System (GNSS) signals, multiple unknown terrestrial SOPs, and IMU measurements, which are used to estimate receiver states. When GNSS signals become unreliable, the mobile receiver continues to navigate using the SOP-aided INS. The SOP-aided INS produces bounded estimation errors in the absence of GNSS signals, and the bounds are dependent on the quantity and quality of exploited SOPs.