Inertial measurement and navigation system using digital signal

Details Inertial measurement and navigation system using digital signal Inertial measurement and navigation system using digital signal

1992-06-19

1995-01-03

Chin, Gary

Boots, shoes, and leggings

364453, 329325, 375 81, G01C 1900, G06G 778

Patent

active

053792238

ABSTRACT:
An inertial measurement and navigation system using a multisensor which provides analog acceleration and rate information to an analog to digital converter whose digital output is processed by a digital demodulator and fed to an AHRS systems processor whose output is fed to a digital to analog converter. Output information from the digital to analog converter can be stored or used to provide information to the pilot oil cockpit displays. The digital demodulator includes a phase locked loop comprising a Hilbert transform phase detector, a first order IIR loop filter and a digital controlled oscillator which provides in-phase and quadrature reference signals used in demodulation.

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patent: 4970469 (1990-11-01), Kovitz
patent: 5057835 (1991-10-01), Factor et al.
patent: 5067138 (1991-11-01), Van Rens et al.
patent: 5173927 (1992-12-01), Strommer et al.
patent: 5241567 (1993-08-01), Shimakata

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