发布求助
文献互助 智能选刊 最新文献

Navigation-Journal of the Institute of Navigation最新文献

筛选
英文 中文
A Method to Determine Secondary Codes and Carrier Phases of Short Snapshot Signals 短快照信号的二次码和载波相位确定方法
IF 2.2 3区 地球科学
Navigation-Journal of the Institute of Navigation Pub Date : 2022-01-01 DOI: 10.33012/navi.541
Xiao Liu, P. Closas, Adria Gusi-Amigo, A. Rovira‐Garcia, J. Sanz
{"title":"A Method to Determine Secondary Codes and Carrier Phases of Short Snapshot Signals","authors":"Xiao Liu, P. Closas, Adria Gusi-Amigo, A. Rovira‐Garcia, J. Sanz","doi":"10.33012/navi.541","DOIUrl":"https://doi.org/10.33012/navi.541","url":null,"abstract":"","PeriodicalId":56075,"journal":{"name":"Navigation-Journal of the Institute of Navigation","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77352198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gravity Modeling in GNSS-Aided Inertial Navigation System Safety Certification gnss辅助惯性导航系统安全认证中的重力建模
IF 2.2 3区 地球科学
Navigation-Journal of the Institute of Navigation Pub Date : 2022-01-01 DOI: 10.33012/navi.520
Timothy G. Needham, M. Braasch
{"title":"Gravity Modeling in GNSS-Aided Inertial Navigation System Safety Certification","authors":"Timothy G. Needham, M. Braasch","doi":"10.33012/navi.520","DOIUrl":"https://doi.org/10.33012/navi.520","url":null,"abstract":"Safety certification of GNSS-aided inertial navigation systems (INS) in civil aircraft requires thorough testing to ensure proper operation, even in worst-case conditions. One error that must be considered is that of gravity compensation on accelerometer measurements. Prior to the work described in this paper, no stochastic models existed with the Gaussian bounding of the tails required to ensure integrity performance. This paper describes a method to determine efficient stochastic models of the error of current high-order gravity models such as EGM2008. The stochastic and high-order models are combined to achieve a high-fidelity model suitable for use in testing systems designed for low-approach operations such as RNP-AR. This paper also describes a method to determine efficient stochastic models for low-order gravity models such as the WGS-84 ellipsoidal model. Such models may be used in testing systems designed for operations with less stringent lateral requirements.","PeriodicalId":56075,"journal":{"name":"Navigation-Journal of the Institute of Navigation","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77788256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization and Performance Assessment of BeiDou-2 and BeiDou-3 Satellite Group Delays 北斗2号和北斗3号卫星群时延特性与性能评估
IF 2.2 3区 地球科学
Navigation-Journal of the Institute of Navigation Pub Date : 2022-01-01 DOI: 10.33012/navi.526
O. Montenbruck, P. Steigenberger, Ningbo Wang, A. Hauschild
{"title":"Characterization and Performance Assessment of BeiDou-2 and BeiDou-3 Satellite Group Delays","authors":"O. Montenbruck, P. Steigenberger, Ningbo Wang, A. Hauschild","doi":"10.33012/navi.526","DOIUrl":"https://doi.org/10.33012/navi.526","url":null,"abstract":"Based on one year of data, a comprehensive assessment of broadcast group delays and differential code biases (DCBs) from network solutions is presented for all open BeiDou signals. Daily DCB estimates exhibit a precision of 0.1 ns, which also places a limit on long-term variations of the satellite group delays. On the other hand, the estimated DCBs show a notable dependence on the employed receivers, which causes inconsistencies at the few-nanosecond level between BeiDou-2 and BeiDou-3 satellites. Systematic satellite-specific offsets can likewise be identified in broadcast group delay values and clock offsets. These constitute the dominant contribution of the signal-in-space range error (SISRE) budget and are a limiting factor for single point positioning and timing. Use of the modernized B1C/B2a signals is therefore recommended instead of B1I/B3I. This offers a SISRE reduction from about 0.6 m to 0.45 m and also improves the consistency of precise clock and bias products derived from heterogeneous receiver networks.","PeriodicalId":56075,"journal":{"name":"Navigation-Journal of the Institute of Navigation","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75166993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Comparison of Autonomous Orbit Determination for Satellite Pairs in Lunar Halo and Distant Retrograde Orbits 月晕和遥远逆行轨道卫星对自主定轨的比较
IF 2.2 3区 地球科学
Navigation-Journal of the Institute of Navigation Pub Date : 2022-01-01 DOI: 10.33012/navi.522
Zhaofeng Gao, X. Hou
{"title":"Comparison of Autonomous Orbit Determination for Satellite Pairs in Lunar Halo and Distant Retrograde Orbits","authors":"Zhaofeng Gao, X. Hou","doi":"10.33012/navi.522","DOIUrl":"https://doi.org/10.33012/navi.522","url":null,"abstract":"is carried out. A factor called dynamic and geometric dilution of precision (DAGDOP) is proposed to simultaneously incorporate influences from the dynamics and geometry of satellite pairs. Based on the DAGDOP, the effect of different observation arcs on the AOD accuracy is investigated. Next, the AOD accuracy of three different types of satellite pairs—halo+halo, DRO+DRO, and halo+DRO—is systematically analyzed. The hybrid halo+DRO type shows the best overall accuracy. Finally, the AOD performance of the hybrid type is verified in a realistic model. Our studies find that the average AOD accuracy of the halo orbit is about 170 meters, and that of the DRO is about 190 meters. The relative time synchronization error of two satellites is less than 30 nanoseconds.","PeriodicalId":56075,"journal":{"name":"Navigation-Journal of the Institute of Navigation","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89927484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Multi-Frequency Simulation of Ionospheric Scintillation Using a Phase-Screen Model 基于相位屏模型的电离层闪烁多频模拟
IF 2.2 3区 地球科学
Navigation-Journal of the Institute of Navigation Pub Date : 2022-01-01 DOI: 10.33012/navi.545
F. Nunes, F. Sousa, Jose M. V. Marcal
{"title":"Multi-Frequency Simulation of Ionospheric Scintillation Using a Phase-Screen Model","authors":"F. Nunes, F. Sousa, Jose M. V. Marcal","doi":"10.33012/navi.545","DOIUrl":"https://doi.org/10.33012/navi.545","url":null,"abstract":"","PeriodicalId":56075,"journal":{"name":"Navigation-Journal of the Institute of Navigation","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89958950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Commercial GNSS Radio Occultation on Aerial Platforms With Off-The-Shelf Receivers 商用GNSS无线电掩星在空中平台与现成的接收器
IF 2.2 3区 地球科学
Navigation-Journal of the Institute of Navigation Pub Date : 2022-01-01 DOI: 10.33012/navi.544
B. Chan, A. Goel, Jonathan Kosh, T. Reid, Corey Snyder, P. Tarantino, Saraswati Soedarmadji, Widyadewi Soedarmadji, Kevin Nelson, F. Xie, Michael Vergalla
{"title":"Commercial GNSS Radio Occultation on Aerial Platforms With Off-The-Shelf Receivers","authors":"B. Chan, A. Goel, Jonathan Kosh, T. Reid, Corey Snyder, P. Tarantino, Saraswati Soedarmadji, Widyadewi Soedarmadji, Kevin Nelson, F. Xie, Michael Vergalla","doi":"10.33012/navi.544","DOIUrl":"https://doi.org/10.33012/navi.544","url":null,"abstract":"In recent decades, GNSS radio occultation (RO) soundings have proven to be an invaluable input to global weather forecasting. The success of government pro-grams such as COSMIC is now complemented by commercial low-cost cubesats. The result is access to more than 10,000 soundings per day. We examine aerial platforms for commercial GNSS-RO, specifically high-altitude balloons and commercial aviation. Meteorological balloons (radiosondes) are deployed daily in over 900 locations globally. Adding GNSS-RO capability to radiosondes would expand capability and enable local area monitoring. Commercial aviation offers scale with more than 100,000 flights daily. A barrier to entry for the inclusion of GNSS-RO sensors is cost and complexity, as GNSS-RO traditionally requires highly specialized equipment. This paper describes a low-cost and scalable approach to aerial GNSS-RO based on commercial-off-the-shelf (COTS) GNSS receivers. We present hardware prototypes and data processing techniques that demonstrate technical feasibility through the results from several flight testing campaigns.","PeriodicalId":56075,"journal":{"name":"Navigation-Journal of the Institute of Navigation","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89223145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Integrity of Visual Navigation—Developments, Challenges, and Prospects 视觉导航的完整性——发展、挑战和前景
IF 2.2 3区 地球科学
Navigation-Journal of the Institute of Navigation Pub Date : 2022-01-01 DOI: 10.33012/navi.518
Chen Zhu, M. Meurer, C. Günther
{"title":"Integrity of Visual Navigation—Developments, Challenges, and Prospects","authors":"Chen Zhu, M. Meurer, C. Günther","doi":"10.33012/navi.518","DOIUrl":"https://doi.org/10.33012/navi.518","url":null,"abstract":"an essential role in safety-critical applications like civil aviation. Nevertheless, there are several challenges to quantify the risks associated with visual navigation. Over the last few years, several approaches to tackle these challenges have been investigated. These developments are the first steps toward a reliable visual positioning framework with integrity monitoring capabilities. In this paper, we review the current status, particular challenges, and development trends in visual positioning integrity monitoring. In addition, we propose a preliminary framework so that the future developments on visual navigation integrity can benefit from a systematic approach.","PeriodicalId":56075,"journal":{"name":"Navigation-Journal of the Institute of Navigation","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75401076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
GPS-Denied Navigation Aided by Synthetic Aperture Radar Using the Range-Doppler Algorithm 基于距离-多普勒算法的合成孔径雷达抗gps导航
IF 2.2 3区 地球科学
Navigation-Journal of the Institute of Navigation Pub Date : 2022-01-01 DOI: 10.33012/navi.533
Colton Lindstrom, Randall S. Christensen, Jacob Gunther,, S. Jenkins
{"title":"GPS-Denied Navigation Aided by Synthetic Aperture Radar Using the Range-Doppler Algorithm","authors":"Colton Lindstrom, Randall S. Christensen, Jacob Gunther,, S. Jenkins","doi":"10.33012/navi.533","DOIUrl":"https://doi.org/10.33012/navi.533","url":null,"abstract":"","PeriodicalId":56075,"journal":{"name":"Navigation-Journal of the Institute of Navigation","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73735833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Measurement Error Detection for Stereo Visual Odometry Integrity 测量误差检测的立体视觉里程计完整性
IF 2.2 3区 地球科学
Navigation-Journal of the Institute of Navigation Pub Date : 2022-01-01 DOI: 10.33012/navi.542
Yuan-Ting Fu, Shizhuang Wang, Y. Zhai, X. Zhan, Xin Zhang
{"title":"Measurement Error Detection for Stereo Visual Odometry Integrity","authors":"Yuan-Ting Fu, Shizhuang Wang, Y. Zhai, X. Zhan, Xin Zhang","doi":"10.33012/navi.542","DOIUrl":"https://doi.org/10.33012/navi.542","url":null,"abstract":"","PeriodicalId":56075,"journal":{"name":"Navigation-Journal of the Institute of Navigation","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73335695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Coherent Combining and Long Coherent Integration for BOC Signal Acquisition under Strong Interference 强干扰下BOC信号采集的相干合并和长相干集成
IF 2.2 3区 地球科学
Navigation-Journal of the Institute of Navigation Pub Date : 2022-01-01 DOI: 10.33012/navi.508
Chun Yang, A. Soloviev, A. Vadlamani, J. C. Ha
{"title":"Coherent Combining and Long Coherent Integration for BOC Signal Acquisition under Strong Interference","authors":"Chun Yang, A. Soloviev, A. Vadlamani, J. C. Ha","doi":"10.33012/navi.508","DOIUrl":"https://doi.org/10.33012/navi.508","url":null,"abstract":"A coherent combining and long coherent integration (CCLCI) scheme is pre - sented for standalone direct acquisition of binary offset carrier (BOC) signals under strong radio frequency interference (RFI). To mitigate the ambiguity of BOC signals, a split-spectrum method extracts the upper and lower sidebands of a BOC signal, treats them separately as two binary phase shift keying (BPSK) signals, and finally combines the results to recover the loss due to splitting. The CCLCI scheme burns through strong interference by building up the desired weak signal while averaging out noise and interference. It exploits all information available (L1 and L2, upper and lower sidebands, odd and even chips, and I-and Q-components) by applying coherent combining across signal components and long coherent integration over time, followed by noncoherent accumulation if necessary. Issues and enabling techniques are described. The results of an embed - ded implementation in demonstration with a GPS RF simulator are analyzed.","PeriodicalId":56075,"journal":{"name":"Navigation-Journal of the Institute of Navigation","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75759527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信