IPNL 智能定位与导航实验室 EN 简 繁
研究方向

接收机层 GNSS 信号处理与 SDR

软件无线电接收机、矢量跟踪、信号质量分析,把退化的卫星信号转化为带明确不确定度的可用测量。

GNSS SDR矢量跟踪捕获 / 跟踪L1 / L5直接位置估计C/N0相关器特征接收机层不确定度

方向负责人： Bing Xu

可信导航必须在位置估计之前就开始。许多城市 GNSS 失效从接收机层就埋下种子 —— 弱信号、相关峰畸变、多径、NLOS、多普勒不一致、跟踪环失锁 —— 下游估计器都无法完全弥补。

传统标量跟踪接收机输出黑盒测量,弱信号或畸变信号会失锁;IPNL 用软件无线电 + 矢量跟踪输出带明确不确定度的测量。

我们研究接收机层算法,把弱、畸变信号转化为可用的测量、似然与不确定度模型 —— 软件无线电接收机、矢量跟踪、捕获 / 跟踪、GPS L1/L5 处理、直接位置估计、相关器层特征、城市 / 植被 / 高动态环境下的 C/N0 评估。

这是 IPNL 自许立达博士读博起就奠定的基础,代表作是开源 MATLAB 矢量跟踪接收机 GPS_VT_SDR,由 NOAA GPS Toolbox 收录。

实验室成员

Bing Xu (15) Yiran Luo (7) Guohao Zhang (4) Abhijit Dey (3) Qiongqiong Jia (3) Chin-Lok Tsang (2) Hoi-Fung Ng (2) Haosheng Xu (1) Liang Zhang (1) Qian Meng (1) Yuan Li (1) Yue Jiang (1)

相关项目

相关论文

2026 (2)

journal Q1
Fang, J., Bing, Xu, Liu, X., & Hsu, L.-T. (2026).Multipath Parameter Estimation Using GNSS Receiver Doppler Measurements. IEEE Transactions on Aerospace and Electronic Systems. https://doi.org/10.1109/taes.2026.3683035
journal Q1
Tsang, C.-L., Hoi-Wah, Ng, Luo, Y., Hai, Di, & Hsu, L.-T. (2026).Ultra-low power GNSS L5 band snapshot positioning: A two step approach. IEEE Internet of Things Journal. https://doi.org/10.1109/jiot.2026.3680038

2024 (4)

journal Q1
Vicenzo, S., Xu, B., Xu, H., & Hsu, L. T. (2024).GNSS direct position estimation-inspired positioning with pseudorange correlogram for urban navigation. GPS Solutions. https://doi.org/10.1007/s10291-024-01627-5
journal Q1
Fang, J., Zhang, L., Zhang, G., Xu, B., & Hsu, L. T. (2024).Characterization and Validation of GNSS Multipath-Induced Doppler Measurement Error. IEEE Transactions on Aerospace and Electronic Systems. https://doi.org/10.1109/taes.2024.3487132
conference
Fang, J., Zhang, L., Zhang, G., Bing, Xu, & Hsu, L.-T. (2024).Modeling and Validation of GNSS Multipath-Induced Doppler Tracking Error. The International Technical Meeting of the The Institute of Navigation. https://doi.org/10.33012/2024.19549
conference
Vicenzo, S., Xin, Qi, Bing, Xu, & Hsu, L.-T. (2024).Machine Learning Assisted GNSS Direct Position Estimation for Urban Environments Applications. The International Technical Meeting of the The Institute of Navigation. https://doi.org/10.33012/2024.19567

2023 (8)

journal
Jia, Q., Luo, Y., Bing, Xu, Hsu, L.-T., & Renbiao, Wu (2023).A robust vector tracking loop structure based on potential bias analysis. Chinese Journal of Aeronautics. https://doi.org/10.1016/j.cja.2023.11.013
journal Q1
Luo, Y., Hsu, L. T., Jiang, Y., Liu, B., Zhang, Z., Xiang, Y., & El-Sheimy, N. (2023).High-Accuracy Absolute-Position-Aided Code Phase Tracking Based on RTK/INS Deep Integration in Challenging Static Scenarios. Remote Sensing. https://doi.org/10.3390/rs15041114
journal unranked
Tsang, C. L., Luo, Y., Xu, B., & Hsu, L. T. (2023).C/N0 Assessment Based on GPS L5/L1C/A Signal Acquisition in Open-Sky/Light-Urban/Dense-Urban/Indoor Environments with Extended Coherent Integration Time. Journal of Aeronautics, Astronautics and Aviation.
journal Q1
Fang, J., Yue, J., Xu, B., & Hsu, L. T. (2023).A post-correlation graphical way for continuous GNSS spoofing detection. Measurement. https://doi.org/10.1016/j.measurement.2023.112974
journal Q1
Luo, Y., Hsu, L. T., Tsang, C. L., & El-Sheimy, N. (2023).An Unassisted Super-Resolution Satellite Navigation Receiver Using GPS L5 Signals. IEEE Transactions on Aerospace and Electronic Systems. https://doi.org/10.1109/taes.2023.3293782
journal Q1
Dey, A., Iyer, K., Xu, B., Sharma, N., & Hsu, L. T. (2023).Performance Evaluation of Vectorized NavIC Receiver Using Improved Dual-Frequency NavIC Measurements. IEEE Transactions on Instrumentation and Measurement. https://doi.org/10.1109/tim.2023.3295020
journal Q1
Luo, Y., Hsu, L. T., & El-Sheimy, N. (2023).A Baseband MLE for Snapshot GNSS Receiver Using Super-Long-Coherent Correlation in a Fractional Fourier Domain. NAVIGATION: Journal of the Institute of Navigation. https://doi.org/10.33012/navi.588
conference
Vicenzo, S., Bing, Xu, Dey, A., & Hsu, L.-T. (2023).Experimental Investigation of GNSS Direct Position Estimation in Densely Urban Area. Proceedings of the 36th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2023). https://doi.org/10.33012/2023.19341

2022 (3)

journal Q1
Dey, A., Iyer, K., B., X., Sharma, N., & Hsu, L. T. (2022).Carrier-Aided Dual Frequency Vectorized Tracking Architecture for NavIC Signals. IEEE Transactions on Instrumentation and Measurement. https://doi.org/10.1109/tim.2022.3146927
journal Q1
Jia, Q., Hsu, & L. T. and Wu, R. (2022).Scalar and vector tracking loop simulation based on a uniform semi-analytic model and robustness analysis in multipath/NLOS situations. GPS Solutions. https://doi.org/10.1007/s10291-022-01280-w
journal Q1
Yue, J.& Xu B. and Hsu, L. T. (2022).Data Denoising Based on Hadamard Matrix Transformation and Rayleigh Quotient Maximization: Application to GNSS Signal Classification. IEEE Transactions on Instrumentation and Measurement. https://doi.org/10.1109/tim.2022.3184357

2021 (1)

journal Q1
H.F., N., Zhang, G., & Hsu, L. T. (2021).Urban Positioning: 3D Mapping Aided GNSS using Dual-Frequency Pseudorange Measurements from Smartphones. NAVIGATION: Journal of the Institute of Navigation. https://doi.org/10.1002/navi.448

2020 (3)

journal Q1
Sun, R., L., F., Wang, G, Cheng, Q., & Hsu, L. T. and Ochieng W. Y. (2020).Using Dual-Polarization GPS Antenna with Optimized Adaptive Neuro-Fuzzy Inference System to Improve Single Point Positioning Accuracy in Urban Canyons. NAVIGATION: Journal of the Institute of Navigation. https://doi.org/10.1002/navi.408
journal Q2
H.F., N., Zhang, G., Yang, K.Y., & Yang, S. X. Hsu L. T. (2020).Improved Weighting Scheme using Consumer-level GNSS L5/E5a/B2a Pseudorange Measurements in the Urban Area. Advances in Space Research. https://doi.org/10.1016/j.asr.2020.06.002
journal Q1
Jia, Q., Hsu, L. T., B., X., & R., W. (2020).Assessment of beamforming for GNSS multipath mitigation with a cost-effective structure. Journal of Navigation.

2019 (4)

journal Q1
B., X.& Hsu, L. T. (2019).An Open Source Matlab Code on GPS Vector Tracking based on Software-Defined Receiver. GPS Solutions. https://doi.org/10.1007/s10291-019-0839-x
journal Q1
Luo, Y., J., L., C., Y., B., X., Y., L., Hsu, L. T., & El-Sheimy, N. (2019).Research on Time-Correlated Errors Using Allan Variance in a Kalman Filter Applicable to Vector-Tracking-Based GNSS Software-Defined Receiver for Autonomous Ground Vehicle Navigation. Remote Sensing. https://doi.org/10.3390/rs11091026
journal Q1
B., X.& Jia, Q. and Hsu L. T. (2019).Vector Tracking Loop-based GNSS NLOS Detection and Correction: Algorithm Design and Performance Analysis. IEEE Transactions on Instrumentation and Measurement. https://doi.org/10.1109/tim.2019.2950578
journal Q2
Meng, Q., Hsu, L. T., B., X., Luo, X., & El-Mowafy, A. (2019).A GPS Spoofing Generator using an Open Sourced Vector Tracking-Based Receiver. Sensors. https://doi.org/10.3390/s19183993

2017 (1)

journal unranked
Kubo, N., Kobayashi, K., Hsu, L.T., & Amai, O. (2017).Multipath Mitigation Technique under Strong Multipath Environment Using Multiple Antennas. Journal of Aeronautics, Astronautics and Aviation, Series A.

2014 (1)

journal Q1
Hsu, L. T., Jan, S. S., Groves, P. D., & Kubo, N. (2014).Multipath mitigation and NLOS detection using vector tracking in urban. GPS Solutions. https://doi.org/10.1007/s10291-014-0384-6

2013 (1)

journal unranked
Hsu, L. T.& Jan, S. S. (2013).Performance Analysis of Advanced GPS Receiver Technique in Radio Frequency Difficult Environment. Journal of Aeronautics, Astronautics and Aviation, Series A.

2010 (1)

journal unranked
Jan, S. S.& Hsu, L. T. (2010).Assessment of Composite PRN Code Acquisition Methods for GPS Signal. Journal of the Chinese Society of Mechanical Engineers.