Error Analysis of ZUPT-Aided Pedestrian Inertial Navigation

2018 ◽  
Author(s):  
Yusheng Wang ◽  
Andrei Chernyshoff ◽  
Andrei M. Shkel
Keyword(s):  
Error Analysis ◽  
Inertial Navigation

Design, modeling, and simulation of an INS system using an asymmetric structure of six accelerometers and its error analysis in the ECEF frame

2016 ◽  
Vol 231 (13) ◽  
pp. 2345-2361 ◽  
Author(s):  
Vahid Ghasemzadeh ◽  
Mohammad M Arefi
Keyword(s):  
Error Analysis ◽  
Lower Cost ◽  
Inertial Navigation ◽  
Asymmetric Structure ◽  
Navigation Systems ◽  
Inertial Navigation Systems ◽  
Symmetric Structure ◽  
Angular Velocities ◽  
Dynamic Relations ◽  
Short Time

The inertial navigation system is one of the most important and common methods of navigation. In this system, accelerometers and gyroscopes are used to measure linear accelerations and angular velocities, respectively. Accelerometers have simpler manufacture techniques, lower cost, and smaller volume and weight in comparison with gyroscopes. Therefore, in some application of navigation systems, non-gyro inertial navigation systems based on accelerometers are used. In this paper, an asymmetric structure of six accelerometers is proposed. Then dynamic relations of this structure are extracted. This structure and its relations can determine linear accelerations and angular velocities, completely. Moreover, the algorithm of inertial navigation in earth centered earth fixed (ECEF) frame is suggested. Error analysis as of the most important issues in inertial navigation is discussed. Thus, bias, misalignment, sensitivity, and noise of accelerometers are modeled appropriately. In addition, a symmetric structure of accelerometers is proposed and its equations are derived. Finally, the designed system, error model of accelerometers, and algorithm of inertial navigation in ECEF frame are simulated. The results of simulation show that the designed system has suitable accuracy and applications for short time navigation. Furthermore, results confirm that the proposed asymmetric structure requires less accelerometer in comparison with symmetric structure.

scholarly journals ERROR ANALYSIS OF INS ARRANGED IN ARDUPILOT MEGA / „ARDUPILOT MEGA“ AUTOPILOTO INERCINIO NAVIGACIJOS ĮRENGINIO PAKLAIDŲ ANALIZĖ

2012 ◽  
Vol 4 (4) ◽  
pp. 408-413
Author(s):  
Ramūnas Kikutis ◽  
Darius Rudinskas
Keyword(s):  
Error Analysis ◽  
Automatic Control ◽  
Unmanned Aerial Vehicles ◽  
Inertial Navigation ◽  
Navigation Systems ◽  
Inertial Navigation Systems ◽  
Aerial Vehicles ◽  
Small Uav ◽  
Huge Impact ◽  
Uav Navigation

Inertial navigation systems (INS) are widely used for controlling piloted or unmanned aerial vehicles (UAV). Automatic control equipment with INS has error budget making a huge impact on the accuracy of UAV navigation. The paper analyzes INS errors and types of errors. Experiments have been done using small UAV. Santrauka Inerciniai navigacijos įrenginiai (INS) plačiai naudojami pilotuojamuose ir nepilotuojamuose orlaiviuose. Nepilotuojamo orlaivio skrydžio tikslumui didelę įtaką turi orlaivio automatinio valdymo sistemos įrenginių paklaidos. Tyrime nagrinėjamas nepilotuojamas orlaivis, kurio automatinio valdymo sistemos dalis yra inercinis navigacijos įrenginys. Analizuojami INS įrenginių paklaidų šaltiniai, paklaidų tipai. Eksperimentiniai tyrimai atlikti naudojant mažo nepilotuojamo orlaivio automatinio valdymo sistemą.

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