作者: 為現(xiàn)場 時間: 2025-3-21 21:56 作者: 云狀 時間: 2025-3-22 02:52
Single Satellite Positioning Method and Error Characteristic Analysis of LEO Navigation Satellitesioning, this paper studies multi-epoch positioning method based on the idea of replacing time to space. Taking advantage of the characteristics of the LEO satellite, such as high angular velocity and high signal landing power, through limited time of navigation signal observation, the pseudo-range a作者: Instinctive 時間: 2025-3-22 07:45
A High Dynamic Positioning Algorithm for Ka Band LEO Satellites in Beam Polling Modellites in point beam polling mode, a LEO satellite/inertial integrated navigation and positioning algorithm based on accumulated error estimation and correction is proposed. A extended Kalman filtering estimator is used to achieve the state error estimation at the output of inertial navigation. By t作者: synovial-joint 時間: 2025-3-22 09:22
Spoofing Monitoring Method Research of GNSS Based on LEO Doppler Measurement support for constructing the future PNT system and improving its service performance. Spoofing is a potential factor to affect reliability of GNSS services, LEO satellites can provide reliable information as independent navigation sources and show good anti-spoofing performance with dual-direction 作者: Recess 時間: 2025-3-22 13:36
Credibility Monitoring Research of BDS Based on LEO/INSare important factors affecting the reliability of airborne satellites navigation system. LEO satellites with advantages of running in low orbits, having rapid change of satellite geometry and strong anti-interference capability of satellite signal, can significantly enhance the credibility of BDS. 作者: Recess 時間: 2025-3-22 17:42
ARAIM Integrity and Continuity Considering Fault Detection and Exclusiont satellites in view. However, there is a heightened likelihood of satellite fault occurrences, which can result in more mission interruptions and increase the continuity risk. In response, fault exclusion algorithms are indispensable to reducing the continuity risk and maintaining continuous naviga作者: 帳單 時間: 2025-3-23 00:53 作者: 有限 時間: 2025-3-23 03:10 作者: Catheter 時間: 2025-3-23 09:23 作者: Occupation 時間: 2025-3-23 12:30
An Asynchronous Observation Positioning Algorithm Based on Factor Graph Optimizationion is an existing trend. Considering the needs of communication services, the integrated signal generally has burst characteristics, and the receiver only receives the signal from the satellite in some specific time slots, and the observation has obvious asynchronous arrival characteristics. Such a作者: infarct 時間: 2025-3-23 15:34 作者: nugatory 時間: 2025-3-23 18:55
Impact of Temporally Correlated Error on ARAIM ISM During Ionospheric Storm Periodect the performance of satellite navigation. Therefore, civil aviation standards require that the impact of ionospheric anomalies (especially ionospheric storms) should be considered in integrity monitoring. To meet the safety requirement of satellite navigation service in civil aviation, it is urge作者: 干旱 時間: 2025-3-24 00:55
Scintillation Identification Based on Spectral Featuresvarious features on scintillation variation. Different methods can be developed with ML to find out potential scintillation impacts, and satisfied results generally could be arrived with accuracy of 95%. It also point out that the descending trend existed over Fresnel frequency is essential to disti作者: Fester 時間: 2025-3-24 03:10
Centimeter-Level Real-Time Orbit Determination and Accuracy Analysis of LEO Satellite with POD4LEO Svelopment of precision orbit determination of low orbit satellites, and the opportunities brought by GNSS satellite-based enhancement service for real-time centimeter-level orbit determination of low orbit satellites, then analyzes the orbit accuracy and clock error accuracy of current satellite-bas作者: 諷刺滑稽戲劇 時間: 2025-3-24 07:14
Impact Analysis of BeiDou Satellite Integrity Events in 2022u System will become the focus of global civil aviation users. During the assessment of the BeiDou open service performance, it was found that in March 2022, the BDS- 3 MEO-3 (PRN21) satellite had a serious abnormal event. The event occurred in which PRN21 satellite had a frequency offset fault of t作者: 鳥籠 時間: 2025-3-24 12:41
Analysis of Navigation Augmentation Performance Based on LEO Satellite Communication Constellationrealized by making full use of the characteristics of LEO communication satellites, such as high transmission rate, low orbit height and large constellation scale, which has attracted extensive attention and become a research hotspot. Based on the systematic analysis of the available resources of th作者: 鳴叫 時間: 2025-3-24 18:24 作者: 金桌活畫面 時間: 2025-3-24 20:39 作者: 消極詞匯 時間: 2025-3-25 01:41 作者: 會議 時間: 2025-3-25 05:24 作者: PARA 時間: 2025-3-25 10:13 作者: ETCH 時間: 2025-3-25 12:53
Laboratory Design and Management Principles, support for constructing the future PNT system and improving its service performance. Spoofing is a potential factor to affect reliability of GNSS services, LEO satellites can provide reliable information as independent navigation sources and show good anti-spoofing performance with dual-direction 作者: Nutrient 時間: 2025-3-25 16:00
Determination of 131I in Water,are important factors affecting the reliability of airborne satellites navigation system. LEO satellites with advantages of running in low orbits, having rapid change of satellite geometry and strong anti-interference capability of satellite signal, can significantly enhance the credibility of BDS. 作者: anniversary 時間: 2025-3-25 22:36 作者: 厭食癥 時間: 2025-3-26 00:50
https://doi.org/10.1007/978-3-658-31415-6uracy and damages the stability of the navigation system. To solve this dilemma, a loose coupled RTK/INS positioning method based on robust estimation is proposed. Firstly, during RTK positioning, for eliminating corrupted measurements caused by Non-Line-of-Sight (NLOS) signals and multipath, this p作者: chance 時間: 2025-3-26 07:28 作者: 旁觀者 時間: 2025-3-26 08:28 作者: microscopic 時間: 2025-3-26 15:05
https://doi.org/10.1007/978-3-663-02873-4ion is an existing trend. Considering the needs of communication services, the integrated signal generally has burst characteristics, and the receiver only receives the signal from the satellite in some specific time slots, and the observation has obvious asynchronous arrival characteristics. Such a作者: uncertain 時間: 2025-3-26 17:55
https://doi.org/10.1007/978-3-663-02873-4on link interference model and interference evaluation methods, and the link interference model is constructed by considering various factors comprehensively. Then, the interference evaluation method based on the spectral separation coefficient is used to quantitatively evaluate the attenuation of c作者: abnegate 時間: 2025-3-26 23:23
Basic Concepts of Radiation Biology,ect the performance of satellite navigation. Therefore, civil aviation standards require that the impact of ionospheric anomalies (especially ionospheric storms) should be considered in integrity monitoring. To meet the safety requirement of satellite navigation service in civil aviation, it is urge作者: myriad 時間: 2025-3-27 03:48 作者: 嘲笑 時間: 2025-3-27 08:21
V. L. Korogodina,B. V. Florko,L. P. Osipovavelopment of precision orbit determination of low orbit satellites, and the opportunities brought by GNSS satellite-based enhancement service for real-time centimeter-level orbit determination of low orbit satellites, then analyzes the orbit accuracy and clock error accuracy of current satellite-bas作者: chlorosis 時間: 2025-3-27 10:57 作者: noxious 時間: 2025-3-27 17:23 作者: Hamper 時間: 2025-3-27 19:37
Late Effects of Radiation in Man,single frequency augmentation and dual frequency dual constellation augmentation, and is currently carrying out civil aviation testing and certification of single frequency augmentation services. When conducting service coverage area assessment, domestic scholars generally use the grid point evaluat作者: 字形刻痕 時間: 2025-3-28 01:12 作者: GROG 時間: 2025-3-28 03:00 作者: 才能 時間: 2025-3-28 08:32 作者: observatory 時間: 2025-3-28 11:50 作者: 網(wǎng)絡(luò)添麻煩 時間: 2025-3-28 16:15
China Satellite Navigation Conference (CSNC 2024) Proceedings978-981-99-6932-6Series ISSN 1876-1100 Series E-ISSN 1876-1119 作者: CAMP 時間: 2025-3-28 19:32
https://doi.org/10.1007/978-3-663-05423-8col based on the Chinese commercial cryptography standard is carried out. Simulation verification. The simulation results can provide theoretical support for the standardization of BDSBAS message authentication.作者: adumbrate 時間: 2025-3-29 00:28
Basic Concepts of Radiation Biology,alization. It further shows that precise GNSS routine observations with the sampling rate of 1?Hz can be served to recognize scintillation event if a sound spectrum range has been chosen. When a set of parameters on spectrum characteristics could be derived and used for ML training, better performance can even be expected.作者: 欲望 時間: 2025-3-29 07:05 作者: 放肆的我 時間: 2025-3-29 07:32
Scintillation Identification Based on Spectral Featuresalization. It further shows that precise GNSS routine observations with the sampling rate of 1?Hz can be served to recognize scintillation event if a sound spectrum range has been chosen. When a set of parameters on spectrum characteristics could be derived and used for ML training, better performance can even be expected.作者: 業(yè)余愛好者 時間: 2025-3-29 14:53
1876-1100 opics in GNSS. Readers learn about the BDS and keep abreast of the latest advances in GNSS technologies and applications.978-981-99-6934-0978-981-99-6932-6Series ISSN 1876-1100 Series E-ISSN 1876-1119 作者: 高貴領(lǐng)導(dǎo) 時間: 2025-3-29 16:57 作者: JUST 時間: 2025-3-29 21:59
Radiobiology and Radiation Hormesisroviding emergency backup positioning based on the LEO communication constellation is quantitatively evaluated through theoretical calculation and simulation analysis. The research results can provide a reference for designing and constructing an integrated positioning, navigation, and timing service system.作者: 思考才皺眉 時間: 2025-3-30 01:44
A High Dynamic Positioning Algorithm for Ka Band LEO Satellites in Beam Polling Modeoposed algorithm can significantly improve the dynamic positioning performance. The three dimensional positioning and velocity measurement accuracy of high dynamic users can reach below 10 m (1σ) and 0.1 m/s (1σ) respectively.作者: 取回 時間: 2025-3-30 05:02
Analysis of Navigation Augmentation Performance Based on LEO Satellite Communication Constellationroviding emergency backup positioning based on the LEO communication constellation is quantitatively evaluated through theoretical calculation and simulation analysis. The research results can provide a reference for designing and constructing an integrated positioning, navigation, and timing service system.作者: 驚呼 時間: 2025-3-30 11:21 作者: 討好美人 時間: 2025-3-30 14:32
Conference proceedings 2024ers discuss the technologies and applications of the Global Navigation Satellite System (GNSS) and in particular the latest advances in the China BeiDou System (BDS). They are divided into 8 topics to match the corresponding sessions at CSNC 2024, which broadly covered key topics in GNSS. Readers le作者: 演繹 時間: 2025-3-30 20:35 作者: 躺下殘殺 時間: 2025-3-30 22:50
Die Eigenschaften isotoper Elemente,or data detection, weighted positioning and data check to eliminate the impact of various risk events and improve the reliability of RTK. Finally, based on the simulation tests, the performance of the algorithm is verified and evaluated. The results show that the SBAS-RTK integrated positioning can 作者: Explicate 時間: 2025-3-31 03:22 作者: 惡心 時間: 2025-3-31 09:04
Laboratory Design and Management Principles,the novel algorithm can detect and recognize fault navigation satellites effectively, and positioning accuracy after exclusion of spoofed satellites can be ensured. LEO can improve anti-spoofing performance of GNSS observably.作者: neologism 時間: 2025-3-31 10:39 作者: tackle 時間: 2025-3-31 16:49 作者: 認(rèn)為 時間: 2025-3-31 18:42 作者: 凝結(jié)劑 時間: 2025-3-31 22:08
https://doi.org/10.1007/978-3-663-07571-4ting the risk indicators of the integrity of various risk sources to make the virtual protection level of the positioning domain equal. Simulation experiments show that compared with the traditional method, this method realizes the construction of multiple risk source index systems that match the re作者: Receive 時間: 2025-4-1 05:24 作者: 濕潤 時間: 2025-4-1 09:10
https://doi.org/10.1007/978-3-663-02873-4asynchronous observation in multiple epochs for joint estimation to reduce positioning error. Simulation shows that the positioning algorithm based on FGO can effectively improve the positioning accuracy compared with the traditional method.作者: inveigh 時間: 2025-4-1 11:22
https://doi.org/10.1007/978-3-663-02873-4tio of useful signals and gradually moderate. The closer the interference station is deployed to the area near the transmitting station, the more obvious the interference effect will be. However, due to the power characteristics of the satellite transparent transponder, its position change in the ne作者: 容易生皺紋 時間: 2025-4-1 16:55 作者: ciliary-body 時間: 2025-4-1 19:43 作者: 機(jī)械 時間: 2025-4-2 00:47
https://doi.org/10.1007/978-3-319-56372-5grity of the BeiDou satellite space signal performance were evaluated in this quarter. The results show that the single satellite integrity risk of the system in the quarter caused by the event is 2.23?×?(10.), and the continuity risk of PRN21 satellite is 0.398%, both of which are far higher than t
