scholarly journals Application of microwave motion sensors in navigation systems for ground vehicle

2019 ◽  
Vol 30 ◽  
pp. 12004 ◽  
Author(s):  
Dmitrii Khablov
Keyword(s):  
Navigation System ◽  
Autonomous Navigation ◽  
Velocity Vector ◽  
Continuous Measurement ◽  
Navigation Systems ◽  
Motion Sensors ◽  
Ground Vehicle ◽  
Cumulative Error ◽  
System A ◽  
Transport Management

Effective land transport management in a controlled and unmanned mode is impossible without its accurate and continuous positioning. The paper discusses the possibility of increasing this accuracy in the absence or uncertain reception of signals from satellites of the global navigation system. Moreover, the use of an additional self-navigation inertial system to solve this problem in this case is not justified for reasons of accuracy and cost. Therefore, as an alternative autonomous navigation system, a solution based on radar Doppler sensors of modular type is proposed. The methods of measuring the velocity vector and the algorithm of direct continuous measurement of displacements are considered. It is shown that the latter measurement option can significantly reduce the cumulative error when positioning vehicles.

scholarly journals Performance Analysis of Navigation Signal Based on FH-BOC Modulation System

2021 ◽  
Vol 2136 (1) ◽  
pp. 012042
Author(s):  
Minshu Zhang ◽  
Lixin Zhang ◽  
Qibing Xu ◽  
Lang Bian
Keyword(s):  
Performance Analysis ◽  
Navigation System ◽  
Navigation Systems ◽  
Signal System ◽  
Code Tracking ◽  
Advantages And Disadvantages ◽  
System A ◽  
Navigation Signal ◽  
Scientific Significance ◽  
Satellite Navigation Systems

Abstract Based on the traditional BOC modulation system, a new navigation signal system based on FH-BOC is proposed in this paper. The simulation and verification of FH-BOC signal are carried out, and the modulation characteristics, code tracking performance and anti-interference performance of FH-BOC signal are analyzed, and the advantages and disadvantages of the modified system are verified. The results show that FH-BOC signal has good ranging and anti-interference ability, which is suitable for navigation system and can reduce the ambiguity of BOC signal’s secondary peak to a certain extent. At the same time, the T has important scientific significance and application value to improve the countermeasure capability of other satellite navigation systems.

Model of an alternative navigation system for high-precision weapons

2020 ◽  
pp. 154851292092195 ◽  
Author(s):  
Vitalii Savchenko ◽  
Volodymyr Tolubko ◽  
Liubov Berkman ◽  
Anatolii Syrotenko ◽  
Pavlo Shchypanskyi ◽  
...  
Keyword(s):  
High Precision ◽  
Global Positioning System ◽  
Navigation System ◽  
Autonomous Navigation ◽  
Least Squares Method ◽  
Positioning System ◽  
Navigation Systems ◽  
Navigation Support ◽  
Global Positioning ◽  
Global Navigation Systems

The article explores the problem of alternative navigation support for high-precision weapons that use guidance based on signals from global navigation systems. It proposes the use of an autonomous navigation system replacing satellite navigation in the case where major Global Positioning System-like systems are unavailable. It suggests the idea and the model of a moving navigation field that can move along the weapon trajectory. The model of accuracy for the pseudolite navigation system uses the least squares method as its basis. The study looks into the accuracy parameters of the moving navigation field. The results of the study show the advantages of a moving field when compared with a stationary navigation field in case of autonomous use. This research also shows the possibility of using an autonomous system for Special Forces, search and rescue operations, and robotic and unmanned aerial, ground, and sea-based vehicles.

Aided Inertial Navigation System Solutions: Application for Synthetic Aperture Sonar

2006 ◽  
Author(s):  
Ursula Ho¨lscher-Ho¨bing ◽  
Mikael Bliksted Larsen
Keyword(s):  
Real Time ◽  
Navigation System ◽  
Autonomous Navigation ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Synthetic Aperture ◽  
Navigation Systems ◽  
Synthetic Aperture Sonar ◽  
Technical Requirements ◽  
Modern Development

Future naval systems for MCM will include a family of advanced underwater vehicles: AUV’s, towed vehicles, inspection ROV’s, expendable mine disposal vehicles etc. Navigation system technical requirements range from low cost for disposable vehicles in high quantity production to state-of-the-art autonomous navigation in support of AUV’s and high resolution Synthetic Aperture Sonar (SAS) for mine hunting. Using modern development tools and floating point embedded processors it was possible to create a generic implementation of the conventional Aided Inertial Navigation System (AINS) framework. The proven framework and real-time embedded software/hardware ensures optimum fit of navigation systems technical requirements via complete freedom in choice of navigation sensors, aiding techniques and operational procedures. This paper describes the underlying navigation system framework and in particular the first real-time embedded application within an underwater vehicle: Extremely high performance relative navigation in support of SAS processing for detection of buried mines.

Near Space Pseudolite Navigation System Design and High-Performance Filtering Algorithm

2013 ◽  
Vol 411-414 ◽  
pp. 931-935
Author(s):  
She Sheng Gao ◽  
Wen Hui Wei ◽  
Li Xue
Keyword(s):  
Kalman Filter ◽  
Particle Filter ◽  
Navigation System ◽  
Particle Filtering ◽  
Autonomous Navigation ◽  
Unscented Kalman Filter ◽  
Navigation Systems ◽  
Filtering Algorithm ◽  
Near Space ◽  
Autonomous Navigation System

This paper analyzes the defects of satellite navigation systems that exist in positioning and precision-guided weapons and pointes out the advantages and military needs of pseudolite. The autonomous navigation nonlinear mathematical model of Near Space Pseudolite SINS/CNS/SAR autonomous navigation system is established. Based on the merits of fading filter, robust adaptive filtering and particle filter, we propose a fading adaptive Unscented Particle Filtering algorithm. The proposed filtering algorithm is applied to SINS/CNS/SAR autonomous navigation system and conducted simulation calculation with the Unscented Kalman filter and particle filter comparison. The results show that the new algorithm that is proposed meets the needs of pseudolite autonomous navigation, and the navigation accuracy is significantly higher than the Unscented Kalman filter and particle filter algorithm.

scholarly journals An Improved Attitude Compensation Algorithm for SINS/GNS Integrated Navigation System

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Feng Xie ◽  
Minzhou Dong
Keyword(s):  
Navigation System ◽  
Autonomous Navigation ◽  
Inertial Navigation System ◽  
High Reliability ◽  
Navigation Systems ◽  
Integrated Navigation ◽  
Simulation Experiments ◽  
Integrated Navigation System ◽  
Strong Robustness ◽  
Improve Accuracy

In order to suppress the error caused by the drift of the gyroscope and further improve accuracy of the navigation system, combined with the method of measuring attitude by using the three-axis components of geomagnetic, a new scheme, consisting of Strapdown Inertial Navigation System (SINS)/Geomagnetic Navigation System (GNS), is designed for autonomous integrated navigation systems. The principle of this SINS/GNS integrated navigation system is explored, and the corresponding mathematical model is established. Furthermore, a Marginalized Particle Filter (MPF) is designed for this autonomous integrated navigation system. The simulation experiments are conducted, and the results show that the improved SINS/GNS autonomous integrated navigation system possesses strong robustness and high reliability, thus providing a new reference solution for autonomous navigation technology.

Utilisation of Robotic Navigation Systems in the Treatment of Atrial Fibrillation

2010 ◽  
Vol 6 (3) ◽  
pp. 60
Author(s):  
Richard Schilling ◽  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Navigation System ◽  
Antiarrhythmic Drugs ◽  
Rhythm Control ◽  
Navigation Systems ◽  
Robotic Navigation ◽  
Increased Risk ◽  
Common Strategy ◽  
Catheter Navigation

Atrial fibrillation (AF) is linked to an increased risk of adverse cardiovascular events. While rhythm control with antiarrhythmic drugs (AADs) is a common strategy for managing patients with AF, catheter ablation may be a more efficacious and safer alternative to AADs for sinus rhythm control. Conventional catheter ablation has been associated with challenges during the arrhythmia mapping and ablation stages; however, the introduction of two remote catheter navigation systems (a robotic and a magnetic navigation system) may potentially overcome these challenges. Initial clinical experience with the robotic navigation system suggests that it offers similar procedural times, efficacy and safety to conventional manual ablation. Furthermore, it has been associated with reduced fluoroscopy exposure to the patient and the operator as well as a shorter fluoroscopy time compared with conventional catheter ablation. In the future, the remote navigation systems may become routinely used for complex catheter ablation procedures.

Geophysical Support of Magnetometer Autonomous Navigation Systems

2020 ◽  
Author(s):  
Vladimir T. Minligareev ◽  
Elena N. Khotenko ◽  
Vadim V. Tregubov ◽  
Tatyana V. Sazonova ◽  
Vaclav L. Kravchenok
Keyword(s):  
Autonomous Navigation ◽  
Navigation Systems
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