Journal Articles
*: Equal Contribution
[J58]. Keidai Iiyama, Daniel Neamati, and Grace Gao, Satellite Autonomous Clock Fault Monitoring with Inter-Satellite Ranges Using Euclidean Distance Matrices, Navigation: Journal of the Institute of Navigation. Submitted. [paper]
[J57]. Kaila M. Y. Coimbra, Marta Cortinovis, Tara Mina, and Grace Gao, Single-Satellite Lunar Navigation via Doppler Shift Observables for the NASA Endurance Mission, Navigation: Journal of the Institute of Navigation. Accepted. [paper]
[J56]. Tara Mina, Alan Yang, and Grace Gao, Designing Long GPS Memory Codes Using the Cross Entropy Method, Navigation: Journal of the Institute of Navigation. Submitted. [paper]
[J55]. Alan Yang, Tara Mina, and Grace Gao, Spreading Code Sequence Design via Mixed-Integer Convex Optimization, Navigation: Journal of the Institute of Navigation. Accepted. [paper]
[J54]. Adyasha Mohanty and Grace Gao, Tightly Coupled Graph Neural Network and Kalman Filter for Smartphone Positioning, Navigation: Journal of the Institute of Navigation. December 2024, 71 (4); DOI 10.33012/navi.670. [paper]
[J53]. Marta Cortinovis, Keidai Iiyama, and Grace Gao, Satellite Ephemeris Parameterization Methods to Support Lunar Positioning, Navigation, and Timing Services, Navigation: Journal of the Institute of Navigation. December 2024, 71 (4) ; DOI: 10.33012/navi.664. [paper]
[J52]. Derek Knowles, Ashwin V. Kanhere, Daniel Neamati, and Grace Gao, gnss_lib_py: Analyzing GNSS Data with Python, SoftwareX. September 2024; DOI 10.1016/j.softx.2024.101811. [paper]
[J51]. Adyasha Mohanty and Grace Gao, A Survey of Machine Learning Techniques for Improving Global Navigation Satellite Systems, EURASIP Journal on Advances in Signal Processing. June 2024; DOI 10.1186/s13634-024-01167-7. [paper]
[J50]. Tara Mina, Ashwin V. Kanhere, Akshay Shetty, and Grace Gao, GPS Spoofing-Resilient Filtering Using Self-Contained Sensors and Chimera Signal Enhancement, Navigation: Journal of the Institute of Navigation. June 2024, 71 (2) ; DOI: 10.33012/navi.636. [paper]
[J49]. Alan Yang, Tara Mina, and Grace Gao, Spreading Code Optimization for Low-Earth Orbit Satellites via Mixed-Integer Convex Programming, EURASIP Journal on Advances in Signal Processing. May 2024; DOI 10.1186/s13634-024-01160-0. [paper]
[J48]. Shubh Gupta and Grace Gao, Reliable Urban Vehicle Localization Under Faulty Satellite Navigation Signals, EURASIP Journal on Advances in Signal Processing. April 2024; DOI: 10.1186/s13634-024-01150-2. [paper]
[J47]. Keidai Iiyama, Sriramya Bhamidipati, and Grace Gao, Precise Positioning and Timekeeping in Lunar Orbit via Terrestrial GPS Time-Differenced Carrier-Phase Measurements, Navigation: Journal of the Institute of Navigation. March 2024, 71(1); DOI: 10.33012/navi.635. [paper]
[J46]. Adyasha Mohanty and Grace Gao, Learning GNSS Positioning Corrections for Smartphones using Convolutional Neural Networks, Navigation: Journal of the Institute of Navigation. December 2023, 70 (4); DOI: 10.33012/navi.622. [paper]
[J45]. Sriramya Bhamidipati, Tara Mina, Alana Sanchez, and Grace Gao, Satellite Constellation Design for a Lunar Navigation and Communication System, Navigation: Journal of the Institute of Navigation. December 2023, 70 (4); DOI: 10.33012/navi.613. [paper] [video]
[J44]. Sriramya Bhamidipati, Tara Mina and Grace Gao, A Case Study Analysis for Designing a Lunar Navigation Satellite System with Time-Transfer from Earth-GPS, Navigation: Journal of the Institute of Navigation. December 2023, 70 (4); DOI: 10.33012/navi.599. [paper] [video]
[J43]. Tara Mina, Ashwin V. Kanhere, Shreyas Kousik and Grace Gao, Stochastic Reachability-based GPS Spoofing Detection with the Chimera Signal Enhancement, Navigation: Journal of the Institute of Navigation. December 2023, 70 (4); DOI: 10.33012/navi.616. [paper]
[J42]. Shubh Gupta, Adyasha Mohanty, and Grace Gao, Urban Localization using Robust Filtering at Multiple Linearization Points, EURASIP Journal on Advances in Signal Processing. October 2023; DOI: 10.1186/s13634-023-01062-7. [paper]
[J41]. Daniel Neamati, Sriramya Bhamidipati and Grace Gao, Mosaic Zonotope Shadow Matching for Risk-Aware Autonomous Localization in Harsh Urban Environments, Artificial Intelligence. September 2023; DOI: 10.1016/j.artint.2023.104000. [paper]
[J40]. Sriramya Bhamidipati and Grace Gao, Networked Timing Risk Analysis Against GPS Spoofing via Stochastic Reachability in PMUs, Navigation: Journal of the Institute of Navigation. September 2023, 70 (3) navi.574; DOI: 10.33012/navi.574. [paper]
[J39]. Alexandros Tzikas*, Derek Knowles*, Grace Gao, and Mykel Kochenderfer, Multi-robot Navigation using Partially Observable Markov Decision Processes with Belief-based Rewards, JAIS: Journal of Aerospace Information Systems. June 2023; DOI: 10.2514/1.I011146. [paper]
[J38]. Shreyas Kousik, Adam Dai and Grace Gao, Ellipsotopes: Combining Ellipsoids and Zonotopes for Reachability Analysis and Fault Detection, IEEE Transactions on Automatic Control. vol. 68, no. 6, pp. 3440-3452, June 2023; DOI: 10.1109/TAC.2022.3191750. [paper]
[J37]. Akshay Shetty, Timmy Hussain and Grace Gao, Decentralized Connectivity Maintenance for Multi-robot Systems Under Motion and Sensing Uncertainties, Navigation: Journal of the Institute of Navigation. vol. 70, no. 1, March 2023; DOI: 10.33012/navi.552. [paper] [video]
[J36]. Derek Knowles and Grace Gao, Euclidean Distance Matrix-based Rapid Fault Detection and Exclusion, Navigation: Journal of the Institute of Navigation. vol. 70, no. 1, March 2023; DOI:10.33012/navi.555. [paper] [video]
[J35]. Ashwin V. Kanhere*, Shubh Gupta*, Akshay Shetty and Grace Gao, Improving GNSS Positioning using Neural Network-based Corrections, Navigation: Journal of the Institute of Navigation. December 2022, 69 (4); DOI: 10.33012/navi.548. [paper] [video]
[J34]. Sriramya Bhamidipati, Shreyas Kousik and Grace Gao, Set-Valued Shadow Matching Using Zonotopes for 3-D Map-Aided GNSS Localization, Navigation: Journal of the Institute of Navigation. December 2022, 69 (4); DOI: 10.33012/navi.547. [paper] [video]
[J33]. Amr Alanwar, Mahmoud Selim, Shreyas Kousik, Grace Gao, Marco Pavone and Karl H. Johansson, Safe Reinforcement Learning Using Black-Box Reachability Analysis, IEEE Robotics and Automation Letter, 2022, vol. 7, no. 4, pp. 10665-10672, October 2022; DOI: 10.1109/LRA.2022.3192205. [paper]
[J32]. Sriramya Bhamidipati, Tara Mina and Grace Gao, Time Transfer from GPS for Designing a SmallSat-Based Lunar Navigation Satellite System, Navigation: Journal of the Institute of Navigation. September 2022, 69 (3); DOI: 10.33012/navi.535. [paper] [video]
[J31]. David Stier, Asta Wu, Adyasha Mohanty and Grace Gao, A Test Platform for UWB-Based Localization of Dynamic Multi-Agent Systems, IEEE Robotics and Automation Letter. vol. 7, no. 2, pp. 3773-3778, April. 2022; DOI: 10.1109/LRA.2022.3146609. [paper]
[J30]. Adyasha Mohanty, Asta Wu, Sriramya Bhamidipati, and Grace Gao, Precise Relative Positioning via Tight Coupling of GPS Carrier Phase and Multiple UWBs, IEEE Robotics, and Automation Letters, vol. 7, no. 2, pp. 5757 - 5762, April 2022; DOI: 10.1109/LRA.2022.3145051. [paper]
[J29]. Tara Mina and Grace Gao, Designing Low-Correlation GPS Spreading Codes with a Natural Evolution Strategy Machine Learning Algorithm, Navigation: Journal of the Institute of Navigation. vol. 69, no. 1, March 2022; DOI: 10.33012/navi.506. [paper][video]
[J28]. Sriramya Bhamidipati and Grace Gao, Robust GPS-Vision Localization via Integrity-Driven Landmark Attention, Navigation: Journal of the Institute of Navigation, vol. 69, no. 1, March 2022; DOI: 10.33012/navi.501. [paper][video]
[J27]. Adyasha Mohanty, Shubh Gupta and Grace Gao, A Particle Filtering Framework for Integrity Risk of GNSS-Camera Sensor Fusion, Navigation: Journal of the Institute of Navigation. December 2021; DOI: 10.1002/navi.455. [paper]
[J26]. Shubh Gupta and Grace Gao, Data-Driven Protection Levels for Camera and 3D Map-based Safe Urban Localization, Navigation: Journal of the Institute of Navigation, vol. 68, no. 3, pp. 643-660, September 2021. DOI: 10.1002/navi.445. [paper][video]
[J25]. Akshay Shetty and Grace Gao, Predicting State Uncertainty Bounds Using Non-linear Stochastic Reachability Analysis for Urban GNSS-based UAS Navigation, IEEE Intelligent Transportation Systems, vol. 22, no. 9, pp. 5952-5961, September 2021; DOI: 10.1109/TITS.2020.3040517. [paper]
[J24]. Shubhendra Chauhan and Grace Gao, Spoofing Resilient State Estimation for the Power Grid Using an Extended Kalman Filter, IEEE Transactions on Smart Grid, vol. 12, no. 4, pp. 3404-3414, July 2021; DOI: 10.1109/TSG.2021.3051920. [paper]
[J23]. Shubhendra Chauhan and Grace Gao, Synchrophasor Data Under GPS Spoofing: Attack Detection and Mitigation Using Residuals, IEEE Transactions on Smart Grid, vol. 12, no. 4, pp. 3415-3424, July 2021; DOI: 10.1109/TSG.2021.3051926. [paper]
[J22]. Cara Kataria, Steven Franke, Grace Gao and Jennifer Bernhard, Secure Antenna Polarization Modulation Line-of-Sight Analysis and Demonstration, IEEE Transactions on Antennas and Propagation, vol. 69, no. 7, pp. 4100-4108, July 2021; DOI: 10.1109/TAP.2021.3060454. [paper]
[J21]. Matthew Peretic and Grace Gao, Design of a Parallelized Direct Position Estimation-Based GNSS Receiver, Navigation: Journal of the Institute of Navigation, vol. 68, no. 1, pp. 21-39, December 2020; DOI: 10.1002/navi.402. [paper]
[J20]. Sriramya Bhamidipati and Grace Gao, Integrity Monitoring of Graph-SLAM Using GPS and Fish-eye Camera, Navigation: Journal of the Institute of Navigation, vol. 67, no. 3, pp. 583-600, August 2020; DOI: 10.1002/navi.381. [paper] [video]
[J19]. Arthur Chu, Shubhendra Chauhan and Grace Gao, GPS Multi-Receiver Direct Position Estimation for Aerial Applications, IEEE Transactions on Aerospace and Electronic Systems, vol. 56, no. 1, pp. 249 - 262, Feburary 2020; DOI: 10.1109/TAES.2019.2915393. [paper]
[J18]. Tara Mina, Sriramya Bhamidipati and Grace Gao, GPS Spoofing Detection for the Power Grid Network using a Multi-Receiver Hierarchical Framework Architecture, Navigation: Journal of the Institute of Navigation, vol. 66, no. 4, pp. 857-875, December 2019; DOI: 10.1002/navi.341. [paper]
[J17]. Sriramya Bhamidipati and Grace Gao, GPS Multi-Receiver Joint Direct Time Estimation and Spoofer Localization, IEEE Transactions on Aerospace and Electronic Systems, vol. 55, no. 4, pp. 1907-1919, August 2019; DOI: 10.1109/TAES.2018.2879532. [paper]
[J16]. Akshay Shetty and Grace Gao, Adaptive Covariance Estimation of LiDAR-based Positioning Errors for UAVs, Navigation: Journal of the Institute of Navigation, vol. 66, no. 2, pp. 463-476, May 2019; DOI: 10.1002/navi.307. [paper]
[J15]. Cara Kataria, Grace Gao and Jennifer Bernhard, Design of a Compact Hemispiral GPS Antenna with Direction Estimation Capabilities, IEEE Transactions on Antennas and Propagation, vol. 67, no. 5, pp. 2878-2885, May 2019; DOI: 10.1109/TAP.2019.2899009. [paper]
[J14]. Sriramya Bhamidipati and Grace Gao, Locating Multiple GPS Jammers Using Networked UAVs, IEEE Transactions on Internet of Things, vol. 6, no. 2, pp. 1816 - 1828, April 2019; DOI: 10.1109/JIOT.2019.2896262. [paper]
[J13]. Derek Chen and Grace Gao, Probabilistic Graphical Fusion of LiDAR, GPS, and 3D Building Maps for Urban UAV Navigation, Navigation: Journal of the Institute of Navigation, vol. 66, no. 1, pp. 151-168, March 2019; DOI: 10.1002/navi.298. [paper]
[J12]. Yuting Ng and Grace Gao, GNSS Multi-Receiver Vector Tracking, IEEE Transactions on Aerospace and Electronic Systems, vol. 53, no. 5, pp. 2583-2593, October 2017; DOI: 10.1109/TAES.2017.2705338. [paper]
[J11]. Liang Heng and Grace Gao, Accuracy of Range-Based Cooperative Positioning: A Lower Bound Analysis, IEEE Transactions on Aerospace and Electronic Systems, vol. 53, no. 5, pp. 2304-2316, October 2017; DOI: 10.1109/TAES.2017.2691921. [paper]
[J10]. Liang Heng, Athindran Rakesh Kumar and Grace Gao, Location Hash: Private Proximity Detection Using Partial GPS Information, IEEE Transactions on Aerospace and Electronic Systems, vol. 52, no. 6, pp. 2873-2885, December 2016; DOI: 10.1109/TAES.2016.150301. [paper]
[J9]. Grace Gao, Matteo Sgammini, Mingquan Lu and Nobuaki Kubo, Protecting GNSS Receivers from Jamming, Proceedings of the IEEE, vol. 104, no. 6, pp. 1327-1338, June 2016; DOI: 10.1109/JPROC.2016.2525938. [paper]
[J8]. Liang Heng, Daniel B. Work and Grace Gao, GNSS Signal Authentication from Cooperative Peers, IEEE Intelligent Transportation Systems, vol. 16, no. 4, pp. 1794-1805, August 2015; DOI: 10.1109/TITS.2014.2372000. [paper]
[J7]. Liang Heng, Todd Walter, Per Enge and Grace Gao, GNSS Multipath and Jamming Mitigation Using High-Mask-Angle Antennas and Multiple Constellations, IEEE Transactions on Intelligent Transportation Systems, vol. 16, no. 2, pp. 741-750, April 2015; DOI: 10.1109/TITS.2014.2342200. [paper]
[J6]. Grace Gao, Liang Heng, Achim Hornbostel, Holmer Denks, Michael Meurer, Todd Walter and Per Enge, DME/TACAN Interference Mitigation for GNSS: Algorithms and Flight Test Results, GPS Solutions, vol. 17, no. 1, January 2013. [paper]
[J5]. Grace Gao and Per Enge, How Many GNSS Satellites Are Too Many? IEEE Transactions on Aerospace and Electronic Systems, vol. 48, no. 4, pp. 2865-2874, October 2012; DOI: 10.1109/TAES.2012.6324666. [paper]
[J4]. Liang Heng, Grace Gao, Todd Walter and Per Enge, GPS Signal-in-Space Integrity Performance Evolution in the Last Decade, IEEE Transactions on Aerospace and Electronic Systems, IEEE Transactions on Aerospace and Electronic Systems, vol. 48, no. 4, pp. 2932-2946, October 2012; DOI: 10.1109/TAES.2012.6324670. [paper]
[J3]. Patrick Henkel, Grace Gao, Todd Walter and Christoph Gunther, Robust Multi-Carrier, Multi-Satellite Vector Phase Locked Loop with Wideband Ionospheric Correction and Integrated Weighted RAIM, Journal of Italian Institute of Navigation, issue 190, December 2009. [paper]
[J2]. Grace Gao, Alan Chen, Sherman Lo, David De Lorenzo and Per Enge, Compass-M1 Broadcast Codes in E2, E5b and E6 Frequency Bands, IEEE Journal of Selected Topics in Signal Processing, Special Issue on Advanced Signal Processing for GNSS and Robust Navigation, vol. 3, no. 4, pp. 599-612, August 2009; DOI: 10.1109/JSTSP.2009.2025635. [paper]
[J1]. Zhe Xiang, Song Song, Jin Chen, Hao Wang, Jian Huang and Grace Gao, A Wireless LAN-based Indoor Positioning Technology, IBM Journal of Research and Development, vol. 48, no. 5, pp. 617-626, September 2004. [paper]