High accuracy inertial sensors from inexpensive components

Details High accuracy inertial sensors from inexpensive components High accuracy inertial sensors from inexpensive components

2005-04-19

2005-04-19

Tsai, Carol S W (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

C600S484000, C702S190000

Reexamination Certificate

active

06882964

ABSTRACT:
An analytical apparatus for optimally combining measurements from N individual rate sensing devices or gyros into a single rate estimate significantly improves performance over that of any individual component device. Kalman filtering is used to combine rate sensed devices optimally in the sense of minimizing the variance of the rate error. The Riccati differential equation (RDE) associated with combining a collection of rate sensed devices is completely and exactly solved to derive to the matrix RDE. This analytic solution serves as the key for understanding all of the theoretical properties of the optimal filter, and provides a complete characterization of the final virtual rate sensed performance. In addition, the analytic RDE solution allows many practical problems to be solved that have proved essential for developing successful filter implementations. A discrete-time minimum variance filter implementation combines sensor measurements optimally.

REFERENCES:
patent: 4828389 (1989-05-01), Gubbins et al.
patent: 5157461 (1992-10-01), Page
patent: 5262843 (1993-11-01), Sugarbaker et al.
patent: 5626140 (1997-05-01), Feldman et al.
patent: 6115624 (2000-09-01), Lewis et al.
patent: 6356815 (2002-03-01), Wu et al.
patent: 6577952 (2003-06-01), Geier et al.
patent: 20020111717 (2002-08-01), Scherzinger et al.

Affiliated with

Also associated with

Rating

High accuracy inertial sensors from inexpensive components does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High accuracy inertial sensors from inexpensive components, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High accuracy inertial sensors from inexpensive components will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3440945