Furthermore, two methods were introduced to ensure alignment accuracy and speed: (1) shortened rotating cycle and redesigned compass parameters were selected to eliminate or ease the amplification to low-frequency senor error A method using neural network (NN) and wavelet-based de-noising technology is introduced into the SINS/GPS/magnetometer integrated navigation system, because system accuracy may decrease during GPS outages. This method is accomplished by utilizing the different error propagation characteristics of two different level alignment algorithms, and the procedure of azimuth alignment is performed by opening the azimuth loop.
The simulation results show that the precision of the azimuth misalignment angle in the platform inertial coordinate is not preferable, however, the misalignment angle in the geocentric inertial coordinate achieves an v. On the other hand, azimuth alignment errors converge much more gradually. LiuJ.
Error time histories are presented for a number of cases to show the interrelationship of important factors such as latitude, inertial sensor errors, measurement noises, and disturbance characteristics.Article · Jun 2000 ChenX.-Q. ZhangX.-S. https://www.hindawi.com/journals/mpe/2014/373575/ See all ›20 ReferencesShare Facebook Twitter Google+ LinkedIn Reddit Download Full-text PDF Error Analysis and Compensation of Gyrocompass Alignment for SINS on Moving BaseArticle (PDF Available) in Mathematical Problems in Engineering 2014(2):1-18 · June 2014 with 24
Use of this web site signifies your agreement to the terms and conditions. Moreover, any new model which is of interest can be developed using the methodology presented in this work. Read our cookies policy to learn more.OkorDiscover by subject areaRecruit researchersJoin for freeLog in EmailPasswordForgot password?Keep me logged inor log in with An error occurred while rendering template. For most navigation systems, the initial azimuth is often large by suffering from much external interference, the linear error model based on small misalignment angle is unsuitable to express the error
For the error of the rotation unit, a finite memory Kalman filter is applied to estimate the states during the initial alignment. Based on a certain SINS, turntable test proves that alignment accuracy and time were significantly improved and slightly shortened in comparison with the classical compass alignment. Please try the request again. my review here ShanB.
ChengReadShow morePeople who read this publication also readMultiposition observability analysis of strapdown inertial navigation systemArticle · Feb 2004 J.-C. XuH. C.
When the GPS is working well, NN is trained using the velocity and position information provided by SINS as input and the corresponding errors as output. On the basis of the local obsersability analysis, a robust adaptive filter is developed to estimate the attitude angle error for SINS rapid transfer alignment. the principle of the platform inertial navigation system which tracks the inertial coordinate is introduced firstly, then the transfer alignment methods in two kinds of inertial coordinate (the platform inertial coordinate Furthermore, based on analysis of velocity error, latitude error, and acceleration error on moving base, two improvements are introduced to ensure alignment accuracy and speed: (1) the system parameters are redesigned
SunY. DongY. See all ›9 ReferencesShare Facebook Twitter Google+ LinkedIn Reddit Request full-text A novel gyrocompass alignment method for strapdown inertial navigation systemArticle in Journal of Computational Information Systems 11(5):1719-1727 · March 2015 with 3 ReadsDOI: 10.12733/jcis13342 1st W. BenReadError analysis of compensation cutting technique for wavefront error of KH2PO4 crystalArticle · Sep 2013 Guipeng TieYifan DaiChaoliang Guan+1 more author ...Bing SongReadData provided are for informational purposes only.