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Inertial reference unit

About: Inertial reference unit is a research topic. Over the lifetime, 1306 publications have been published within this topic receiving 22068 citations. The topic is also known as: IRU.


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Proceedings ArticleDOI
03 Mar 2012
TL;DR: Inertial and relative planetary surface navigation techniques for a propulsive planetary hopper, and a preliminary testing plan for advancing this system to mission-ready status is proposed.
Abstract: Hopping vehicles provide advantages over traditional surface exploration vehicles, such as wheeled rovers, by enabling in-situ measurements in otherwise inaccessible terrain. However, significant development over previously demonstrated vehicle navigation technologies is required to overcome the inherent challenges involved in navigating a hopping vehicle, especially in adverse terrain. This paper describes inertial and relative planetary surface navigation techniques for a propulsive planetary hopper. Draper & MIT have been working on an integrated solution for safe and precise landing and traversing via hopping. This modular sensor system uses inertial measurement units (IMUs) and vision-aided packages to analyze the tradeoffs associated with the fusion of inertial and relative sensor solutions, and to act as a proof-of-concept for a hopper navigation system incorporating unified inertial and terrain-relative navigation solutions. This navigation sensor is used to provide the basis for a discussion of the relative merits of inertial and vision-based navigation systems. In addition, a preliminary testing plan for advancing this system to mission-ready status is proposed.

3 citations

Journal Article
TL;DR: The authors think that data from gravity collection system need to be used to compensate or correct errors real-time from gravity aided inertial navigation system in underwater vehicles.
Abstract: The authors think that data from gravity collection system need to be used to compensate or correct errors real-time from gravity aided inertial navigation system in underwater vehicles. Various noise sources are analyzed. Furthermore, without other high precision navigation methods like GPS, a method for correcting the affections from horizontal acceleration and Etvs etc. by directly using output data of the inertial navigation system, is studied and proposed.

3 citations

Proceedings ArticleDOI
24 May 1993
TL;DR: In order to achieve the high reliability required for this replacement system, an Avionics Integrity Program (AVIP) has been implemented which includes extensive in-depth studies to determine actual environments which drive the design process.
Abstract: The requirement for replacement systems for in-service aircraft with aging compass and attitude heading reference systems was the basis for a joint U.S. Air Force/U.S. Navy program to develop, test, and acquire a standard low life-cycle-cost composite system. A single award was made to Smiths Industries in June 1991 to develop the C/AHRS, build fourteen prototypes, and support an extensive test program. The design approach chosen by Smiths included the use of fiber optic gyroscopes. In order to achieve the high reliability required for this replacement system, an Avionics Integrity Program (AVIP) has been implemented which includes extensive in-depth studies to determine actual environments which drive the design process. This paper presents a summary of the C/AHRS requirements and design approach. >

3 citations

Patent
15 Aug 2012
TL;DR: In this paper, a method for functional checking of an inertial sensor, a first test signal having a first frequency being fed in at a test electrode of the sensor for exciting a vibration of a vibration mass and a first response signal corresponding to the vibration mass is recorded, a second test signal with a second frequency different from the first frequency was evaluated, and the two response signals were evaluated.
Abstract: A method for providing functional checking of an inertial sensor, a first test signal having a first frequency being fed in at a test electrode of the inertial sensor for exciting a vibration of a vibration mass and a first response signal corresponding to the vibration mass is recorded, a second test signal having a second frequency different from the first frequency being fed in at the test electrode, a second response signal corresponding to the vibration mass being recorded, and the two response signals being evaluated. Also described is an inertial sensor.

3 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202314
202221
20211
20202
20193
20189