IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium最新文献_第8页

Observability of integrated navigation system states under varying dynamic conditions and aiding techniques 变动态条件下组合导航系统状态的可观测性及辅助技术

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507185

M. Becker, U. Bestmann, A. Schwithal, P. Hecker

{"title":"Observability of integrated navigation system states under varying dynamic conditions and aiding techniques","authors":"M. Becker, U. Bestmann, A. Schwithal, P. Hecker","doi":"10.1109/PLANS.2010.5507185","DOIUrl":"https://doi.org/10.1109/PLANS.2010.5507185","url":null,"abstract":"The performance of integrated navigation systems not only depends on the quality of the used inertial measurement unit (IMU) and aiding sensor information, but also on the correct observation of the system's state vector. As a classical example, an integration filter shows a good performance if it manages to estimate the sensor errors properly. As the observability varies with the current system states as well as the quality of the aiding information, a meaningful characterization of the system's performance is difficult to obtain. The aim of this paper is to analyze the impact of the influences named above on the observability of the system model that is part of the navigation filter. For linear and linearized systems, e.g. Kalman Filter and Extended Kalman Filter, different measures of observability can be derived from control theory. This paper will show the necessary basic algorithms and methods to evaluate a system's observability. Based on these insights an evaluation of a standard filter model of an integrated navigation system is performed. Therefore, different dynamic conditions as well as aiding information are taken into account. The main focus of this work lies on the examination of real flight data and correlation between system states and their observability. Based on these investigations this paper presents a detailed view on the assessment and first results towards a better characterization of IMU performance.","PeriodicalId":94036,"journal":{"name":"IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86386028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Linear composite code acquisition method for GNSS GNSS线性复合码获取方法

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507210

Yao-Cheng Lin, Shau-Shiun Jan

引用次数: 2

The precise INS/GPS geolocation of a vehicle-towed UXO detection system 车辆牵引的未爆弹药探测系统的精确INS/GPS地理定位

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507277

Jong Ki Lee, Dana J. Cacamise, C. Jekeli

引用次数: 2

Mosaic aided navigation: Tools, methods and results 马赛克辅助导航:工具、方法和结果

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507282

V. Indelman, P. Gurfil, E. Rivlin, H. Rotstein

引用次数: 3

Pedestrian dead reckoning system with phone location awareness algorithm 行人航位推算系统与手机位置感知算法

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507241

S. Shin, M. Lee, Chan Gook Park, H. Hong

引用次数: 52

SAR500 - A high-precision high-stability butterfly gyroscope with north seeking capability SAR500 -高精度、高稳定性、具有寻北能力的蝶形陀螺仪

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507139

D. Lăpădatu, Bjorn Blixhavn, R. Holm, T. Kvisterøy

引用次数: 29

Continuous indoor navigation with RFID and INS 连续室内导航与RFID和INS

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507242

G. Retscher, Q. Fu

{"title":"Continuous indoor navigation with RFID and INS","authors":"G. Retscher, Q. Fu","doi":"10.1109/PLANS.2010.5507242","DOIUrl":"https://doi.org/10.1109/PLANS.2010.5507242","url":null,"abstract":"Some navigation applications, such as the navigation of blind users, require that a continuous positioning is performed in combined outdoor urban and indoor environments with a certain positioning accuracy. For outdoor urban environments usually GNSS and dead reckoning are employed and has proven to be satisfactory. In indoor environments, however, absolute position determination with an accuracy in the range of 1 to 2 meters is still very challenging. For indoor location determination, a number of different positioning methods have been developed. In our approach, Radio Frequency Identification (RFID) has been selected and investigated. Using RFID most commonly cell-based positioning is performed. Apart from that we have also investigated trilateration and location fingerprinting based on signal strength measurements (i.e., RSSI short for Received Signal Strength Indication) from the RFID tags in the surrounding environment. The disadvantage of these two positioning methods, however, is the required calibration in the off-line or training phase to deduce ranges to the tags from the RSSI measurements in the case of trilateration or the establishment of the RSSI database at known locations throughout the building in the case of location fingerprinting. Therefore we have developed a new location method based on cell-based positioning which makes use of the measured RSSI in the on-line or positioning phase, i.e., the so-called time-based Cell-of-Origin (CoO). Two modifications have been implemented in comparison to common CoO and will be discussed in the paper. The new approach was then be tested in an indoor environment in an office building of the Vienna University of Technology. It could be seen that for a combined positioning of RFID time-based CoO and a low-cost MEMS-based INS positioning accuracies on the 1 to 2 meter level can be achieved. The different experiments performed in the test bed are described and discussed in this contribution.","PeriodicalId":94036,"journal":{"name":"IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89751698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 27

Impact of satellite coverage in single-frequency precise heading determination 卫星覆盖对单频精确航向确定的影响

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507316

João Reis, J. Sanguino, A. Rodrigues

引用次数: 10

First responder location and tracking using Synthetic Aperture Navigation 使用合成孔径导航定位和跟踪第一响应者

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507250

L. Haas, M. Harlacher

引用次数: 9

Channels combining techniques for a novel two steps acquisition of new composite GNSS signals in presence of bit sign transitions 信道组合技术用于在位符号转换的情况下两步获取新的合成GNSS信号

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507213

K. Sun, L. Presti

{"title":"Channels combining techniques for a novel two steps acquisition of new composite GNSS signals in presence of bit sign transitions","authors":"K. Sun, L. Presti","doi":"10.1109/PLANS.2010.5507213","DOIUrl":"https://doi.org/10.1109/PLANS.2010.5507213","url":null,"abstract":"In this paper, the problem of acquiring new composite Global Navigation Satellite System (GNSS) signals of the next generation systems (such as Galileo and GPS modernization) is addressed and analyzed, focusing the majority of the attention to the problem of managing the higher sign reversal transition rate due to the navigation message in the data channel and to the secondary code in the pilot channel. It must be considered that in case of the Galileo E1 Open Service (OS) signals, in each period of the primary spreading sequence the presence of a potential sign reversal can reduce the correlation gain. Moreover, the sign transition present on the block of samples being processed produces a Cross Ambiguity Function (CAF) peak splitting along the Doppler axis of the search space matrix constructed during the acquisition stage and it may lead to a wrong Doppler estimate. Here, a new two steps acquisition method has been proposed in order to cope with the CAF peak impairments. Due to the availability of data and pilot components separately broadcast in the new composite GNSS signals, in order to overcome the power loss problem and also to mitigate the CAF peak splitting impairments, novel non-coherent and differentially coherent channels combining techniques based on two steps acquisition scheme have been proposed for jointly combining data and pilot components to recover all the transmitted power from both channels. The proposed two steps channels combining acquisition techniques have been deeply characterized from a statistical point of view. Monte Carlo simulation campaigns have been performed on the simulated Galileo E1 OS signals to evaluate the performances of the proposed acquisition techniques in order to support the theoretical analysis.","PeriodicalId":94036,"journal":{"name":"IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80972600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9