scholarly journals On Building of Inertial Navigation System in the Condition of Presence of Considerable g-Load and Angular Velocity in Preferential Direction

2018 ◽  
Vol 2018 (1) ◽  
pp. 31-38
Author(s):  
Е. А. Degtyareva ◽  
А. N. Lapko ◽  
А. А. Meleshko ◽  
Y. V. Chucha
Keyword(s):  
Angular Velocity ◽  
Navigation System ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Preferential Direction

Simulating Gyro of Strapdown Inertial Navigation System Based on Star Sensor

2012 ◽  
Vol 182-183 ◽  
pp. 1090-1094
Author(s):  
Wei Gao ◽  
Lei Zhang
Keyword(s):  
Angular Velocity ◽  
Real Time ◽  
Navigation System ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Strapdown Inertial Navigation System ◽  
Star Sensor ◽  
Measuring Instrument ◽  
Priori Information ◽  
Strapdown Inertial Navigation

In inertial navigation system, gyro is used to measure the angular velocity of carrier relative to inertial space for achieve attitude matrix updated in real time. Gyro difficult to eliminate the error, results in strapdown inertial navigation system precision decrease with time. Star sensor is a high-precision attitude measuring instrument and don’t require any priori information, the attitude date can be provided by star sensor. Thus, gyro is simulated by star sensor in order to improve the precision of strapdown inertial navigation system.

scholarly journals Analysis of the Strapdown Inertial Navigation System (SINS) Error Genesis

2018 ◽  
Vol 6 (1) ◽  
pp. 44-54
Author(s):  
Pjotrs Trifonovs-Bogdanovs ◽  
Anvar Zabirov
Keyword(s):  
Angular Velocity ◽  
Navigation System ◽  
Velocity Measurement ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Strapdown Inertial Navigation System ◽  
Critical Element ◽  
Velocity Sensor ◽  
Strapdown Inertial Navigation

Abstract Analysis and simulation of the Strapdown Inertial Navigation System (SINS) error genesis revealed that the East Feedback Contour has the greatest influence on the development of an error in this model, and angular velocity sensor Δω𝒚 is the critical element. In order to prevent the development of an error, structural correction in the East Feedback Contour, and elements that are more critical, namely in angular velocity measurement sensors is the best option.

The Design for Twelve-Accelerometer Gravity Gradiometer

2009 ◽  
Vol 419-420 ◽  
pp. 221-224
Author(s):  
Lin Zhao ◽  
Feng Ming Liu ◽  
Hai Jing Yuan ◽  
Hong Bin Zhao
Keyword(s):  
Angular Velocity ◽  
Navigation System ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Gravity Gradient ◽  
Gravity Gradiometer ◽  
Mathematical Relationship ◽  
New Type ◽  
Design And Manufacture

The design and manufacture for GGI are different and only several countries have the ability to produce it. Devising the feasible scheme for gravity gradiometer is the primary question.In this paper, a new type of GGI is designed using twelve accelerometers. First, the mathematical relationship between the accelerometer and GGI is derived and the method to separate the angular velocity and gravity gradient is disscussed. Second, the model of twelve-accelerometer gravity gradiometer is provided. Third, the estimation of angular velocity is analyzed when the GGI is installed in the form of strapdown or stabilized state. Finally, it is concluded that a new type of inertial navigation system using gravity gradiometers will be configured when it becomes possible to precisely measure gravity gradient.

A SQUID Magnetometer-Based Readout System for an Inertial Navigation System

2020 ◽  
Vol 75 (4) ◽  
pp. 336-341
Author(s):  
A. V. Rzhevskiy ◽  
O. V. Snigirev ◽  
Yu. V. Maslennikov ◽  
V. Yu. Slobodchikov
Keyword(s):  
Navigation System ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Squid Magnetometer ◽  
Readout System
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