Results 131 to 140 of about 2,053 (167)

Strapdown Guidance Error Analysis

IEEE Transactions on Aerospace and Electronic Systems, 1974
A crucial part of so-called ?strapdown? techniques for inertial guidance systems is the generation of the matrix of direction cosines relating the body axes to the reference axes. This is generally done by direct integration of a set of differential equations having the body angular velocities as inputs.
openaire   +1 more source

Improved strapdown coning algorithms

IEEE Transactions on Aerospace and Electronic Systems, 1992
Three improved algorithms for strapdown attitude computation utilizing accumulated gyro increments from the previous and current update are developed and evaluated analytically under classical coning motion. The error criterion of Miller is derived directly from the rotation vector concept.
Y.F. Jiang, Y.P. Lin
openaire   +1 more source

Strapdown stabilization for imaging seekers

Annual Interceptor Technology Conference, 1993
Abstract : In space constrained applications such as tactical missiles, locating the inertial sensors off the platform simplifies packaging and may allow existing missile autopilot gyros to be used for platform stabilization. In strapdown stabilization, inertial sensors are fixed to the base of the inertial platform rather than directly on the platform
openaire   +1 more source

Strapdown system technology

2004
The preceding chapters have described the fundamental principles of strapdown navigation systems and the sensors required to provide the necessary measurements of angular rate and specific force acceleration. In this chapter, aspects of strapdown system technology are discussed.
openaire   +1 more source

Reliability and Accuracy Prediction for a Redundant Strapdown Navigator

Journal of Guidance and Control, 1980
A comprehensive approach to the evaluation of the accuracy and reliability of a redundant navigation system is described. A Markov model of the redundant system is used to determine the probabilities of particular operational state time histories. Navigation system accuracies are associated with these state time histories through the use of a modified ...
J. HARRISON, K. DALY, E. GAI
openaire   +1 more source

Accurate Direct Strapdown Direction Cosine Algorithm

IEEE Transactions on Aerospace and Electronic Systems, 2019
An assessment of the error inherent in a rotation vector algorithm utilized in a strapdown inertial navigation system is presented, which shows that the accuracy cannot be improved boundlessly only by increasing the number of the used samples. After reaching the upper limit for accuracy, increasing sample size would only enlarge the algorithm error ...
Zihao Xu 0003, Jian Xie, Zhaofa Zhou, Junyang Zhao, Zhiqiang Xu   +4 more
openaire   +2 more sources

Strapdown inertial navigation system calibration

2017 2nd International Ural Conference on Measurements (UralCon), 2017
The paper aims at improving the accuracy of the calibration of strapdown inertial navigation systems (SINS). The calibration is carried out using a 2-axial motion simulator. A new computational method is investigated for the calibration coefficients of the error models of accelerometers and gyroscopes of the strapdown inertial navigation system based ...
S. G. Nikolaev, A. V. Golota
openaire   +1 more source

Strapdown navigation system computation

2004
This chapter is concerned with the real time implementation of attitude, velocity and position information from the inertial measurements in a computer.
openaire   +1 more source

PERFORMANCE OF STRAPDOWN INERTIAL ATTITUDE REFERENCE SYSTEMS

Guidance and Control Conference, 1966
This paper illustrates a method, verified by simulation, of analyzing the major error sources in a strapdown inertial attitude reference system consisting of three pulse-torqued gyros and a digital differential analyzer (DBA). Long-term propagation of commutation error is solved herein through a formulation of effective timing errors that vary \vith ...
openaire   +1 more source

Attitude Determination Algorithm for a Strapdown IMU

IFAC Proceedings Volumes, 1976
Summary Concentrating on the quaternion approach to attitude determination for a strapdown inertial measurement unit, a technique is developed to facilitate selection of algorithmic order without resort to digital simulation. The procedure is demonstrated for algorithms through fourth order and for three specific types of vehicle motion, indicating a
Bernard J. O’connor ;, David A. Zomick ;   +1 more
openaire   +1 more source