This map shows the geographic impact of Todd Walter's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Todd Walter with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Todd Walter more than expected).
This network shows the impact of papers produced by Todd Walter. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Todd Walter. The network helps show where Todd Walter may publish in the future.
Co-authorship network of co-authors of Todd Walter
This figure shows the co-authorship network connecting the top 25 collaborators of Todd Walter.
A scholar is included among the top collaborators of Todd Walter based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Todd Walter. Todd Walter is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Blanch, Juan, et al.. (2022). Baseline Advanced RAIM User Algorithm: Proposed Updates. Proceedings of the Institute of Navigation ... International Technical Meeting/Proceedings of the ... International Technical Meeting of The Institute of Navigation. 229–251.24 indexed citations
Reid, Tyler, Andrew Neish, Todd Walter, & Per Enge. (2018). Broadband LEO Constellations for Navigation. NAVIGATION Journal of the Institute of Navigation. 65(2). 205–220.144 indexed citations
7.
Blanch, Juan, Todd Walter, Per Enge, et al.. (2014). Architectures for Advanced RAIM: Offline and Online. 787–804.5 indexed citations
8.
Datta‐Barua, Seebany, G. S. Bust, Todd Walter, & G. Crowley. (2012). Preliminary Investigation of Solar Cycle 24 Storms and their Effects on SBAS Navigation. 2731–2741.1 indexed citations
9.
Blanch, Juan, et al.. (2012). Evaluation of Multi-constellation Advanced RAIM for Vertical Guidance Using GPS and GLONASS Signals with Multiple Faults. 884–892.7 indexed citations
10.
Walter, Todd, Juan Blanch, R. Eric Phelts, & Per Enge. (2011). Evolving WAAS to Serve L1/L5 Users. 2495–2504.1 indexed citations
11.
Thoelert, Steffen, Michael Meurer, Grace Gao, et al.. (2011). First Signal in Space Analysis of GLONASS K-1. elib (German Aerospace Center). 3076–3082.3 indexed citations
12.
Schroth, Georg, Markus Rippl, A. Ene, et al.. (2008). Enhancements of the Range Consensus Algorithm (RANCO). elib (German Aerospace Center). 93–103.12 indexed citations
13.
Walter, Todd, et al.. (2008). Modeling Ionospheric Spatial Threat Based on Dense Observation Datasets for MSAS. 1918–1928.9 indexed citations
14.
Blanch, Juan, Todd Walter, & Per Enge. (2008). A Simple Algorithm for Dual Frequency Ground Monitoring Compatible with ARAIM. 1911–1917.2 indexed citations
15.
Blanch, Juan, et al.. (2007). An Optimized Multiple Hypothesis RAIM Algorithm for Vertical Guidance. Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007). 2924–2933.53 indexed citations
16.
Kim, Eunhye, Todd Walter, & J. David Powell. (2006). Optimizing WAAS Accuracy/Stability for a Single Frequency Receiver. Proceedings of the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2006). 962–970.3 indexed citations
17.
Walter, Todd, et al.. (2004). Evaluating Ionospheric Effects on SBAS in the Low Magnetic Latitude Region. Proceedings of the 17th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2004). 1318–1328.5 indexed citations
18.
Luo, Ming, Sam Pullen, Todd Walter, & Per Enge. (2004). Ionosphere Spatial Gradient Threat for LAAS: Mitigation and Tolerable Threat Space. 490–501.30 indexed citations
19.
Nichols, J. D., Andrew J. Hansen, Todd Walter, & Per Enge. (1999). Observations of Equatorial Scintillation Using GPS Receivers. 1451–1460.
20.
Walter, Todd, et al.. (1999). Satellite-Based Augmentation System Signal-In-Space Integrity Performance Analysis, Experience, and Perspectives. 159–179.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.