A5055158603- GNSS positioning and interference
- Inertial Sensor and Navigation
- Advanced Computational Techniques and Applications
- Advanced Algorithms and Applications
- Wireless Communication Networks Research
- Target Tracking and Data Fusion in Sensor Networks
- Geophysics and Gravity Measurements
- Mobile Agent-Based Network Management
- Advanced Adaptive Filtering Techniques
- Advanced Wireless Communication Techniques
- Power Systems and Technologies
- Bluetooth and Wireless Communication Technologies
- Indoor and Outdoor Localization Technologies
- Satellite Communication Systems
- Technology and Education Systems
- Astronomical Observations and Instrumentation
- Antenna Design and Optimization
- Network Time Synchronization Technologies
- Power Line Communications and Noise
- Soil Mechanics and Vehicle Dynamics
- Advanced Frequency and Time Standards
- Speech and Audio Processing
- Advanced Research in Science and Engineering
Beijing Jiaotong University
2023-2024
Beijing Transportation Research Center
2024
Beijing Satellite Navigation Center
2024
Shenyang Aerospace University
2024
Institute of Microelectronics
2010-2020
Chinese Academy of Sciences
2006-2020
University of Chinese Academy of Sciences
2018
A multi-constellation, multi-frequency Global Navigation Satellite System (GNSS) receiver is capable of simultaneously receiving signals from multiple satellite constellations across various frequency bands. This allows for increased observations, thereby enhancing navigation accuracy, continuity, effectiveness, and reliability. The spread spectrum code structures used in differ among systems. Compatible generators are employed GNSS receivers to support tasks such as signal acquisition...
This paper proposes a novel VLSI architecture of GNSS acquisition engine based on short-time correlation combined with an FFT scheme. The supports multi-constellation systems and multi-frequency satellite signals flexibly by the manner time-division multiplexing. supported include GPS, BDS, GLONASS, GALILEO, QZSS, IRNSS, SBAS. Compared other direct structures, search efficiency is improved using IF playback structure. Based characteristics L1C B1C signal spread spectrum codes, efficient...
A novel fine code phase determination approach is proposed based on the deduced autocorrelation formula of C/A for bandlimited receivers. The able to significantly improve navigation fix accuracy snapshot GPS simplified algorithm Taylor expansion correlation as well reduce computational complexity. In addition, a modified circular combined with frequency FFT acquisition engine optimized receivers proposed, which suitable algorithm. It also utilizes "coarse capture & confirm" mechanism...
DOI: 10.1049/cp:20061542 ISBN: 0 86341 644 6 Location: Hangzhou, China Conference date: 6-9 Nov. 2006 Format: PDF The acquisition of weak signal is a time consuming process for GPS receiver. If the slow, cold-start and warm-start long information passed to tracking program obtained from old data may be out-of-date. Differentially coherent combining correlation results proposed signals. It shown that signals down -177 dBW can acquired in 200 msec without any assistance need complex FFT...
GNSS/INS integration is widely used for train positioning, but railways tunnels and mountains can interfere GNSS signals will lead to performance degradation when the system operated in standalone INS mode. This paper proposes a Long Short Term Memory (LSTM)-assisted using recomputed Inertial Measurement Unit (IMU) error, suppress error divergence of an case solution non-availability. The IMU recomputation method firstly proposed, where GNSS/INS-derived position, velocity attitude (PVA)...