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D-Index & Metrics

Engineering and Technology

D-Index
38
Citations
7259
World Ranking
7945
National Ranking
2180

Todd Walter publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where Todd Walter sits on this spectrum.

38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38 publications 804+

This scientist: 385 publications — 88th percentile

88% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

Todd Walter D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where Todd Walter sits on this spectrum.

30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 38 D-Index — 20th percentile

20% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

Overview

Todd Walter is affiliated with Stanford University in the United States and has an extensive body of research primarily in engineering and computer science. Their work encompasses subfields including aerospace engineering, computer networks and communications, electrical and electronic engineering, artificial intelligence, and atomic and molecular physics and optics.

The main topics of Todd Walter's research focus on global navigation satellite system (GNSS) positioning and interference, advanced frequency and time standards, indoor and outdoor localization technologies, air traffic management and optimization, inertial sensor and navigation, ionosphere and magnetosphere dynamics, and cryptographic implementations and security.

Recent notable publications include:

  • "An Assessment of GPS Spoofing Detection Via Radio Power and Signal Quality Monitoring for Aviation Safety Operations," 2020, IEEE Intelligent Transportation Systems Magazine
  • "Baseline Advanced RAIM User Algorithm: Proposed Updates," 2022, Proceedings of the Institute of Navigation... International Technical Meeting
  • "Fast Protection Levels for Fault Detection With an Application to Advanced RAIM," 2020, IEEE Transactions on Aerospace and Electronic Systems
  • "GNSS spoofing detection through spatial processing," 2021, NAVIGATION Journal of the Institute of Navigation
  • "GNSS Interference Detection Using Machine Learning Algorithms on ADS-B Data," 2021, Proceedings of the Satellite Division's International Technical Meeting

Frequent co-authors collaborating with Todd Walter include Sherman Lo, Juan Blanch, Jason Anderson, Dennis Akos, and Zixi Liu.

The most common venues where Todd Walter publishes are:

  • Proceedings of the Satellite Division's International Technical Meeting (Online)/CD-ROM
  • Proceedings of the Institute of Navigation... International Technical Meeting
  • NAVIGATION Journal of the Institute of Navigation
  • Proceedings of the ION... Pacific PNT Meeting
  • IEEE Transactions on Aerospace and Electronic Systems

Best Publications

  • Wide area augmentation of the Global Positioning System

    P. Enge;T. Walter;S. Pullen;Changdon Kee

  • Weighted RAIM for Precision Approach

    Todd Walter;Per Enge

  • Baseline advanced RAIM user algorithm and possible improvements

    Juan Blanch;Todd Walker;Per Enge;Young Lee

  • Robust detection of ionospheric irregularities

    Todd Walter;Andrew Hansen;Juan Blanch;Per Enge

  • Broadband LEO Constellations for Navigation

    Tyler G.R. Reid;Andrew M. Neish;Todd Walter;Per K. Enge

  • Advanced RAIM user Algorithm Description: Integrity Support Message Processing, Fault Detection, Exclusion, and Protection Level Calculation

    Juan Blanch;Todd Walter;Per Enge;Young Lee

  • RAIM with Optimal Integrity and Continuity Allocations Under Multiple Failures

    J Blanch;T Walter;P Enge

  • Leveraging Commercial Broadband LEO Constellations for Navigating

    Tyler G. Reid;Andrew M. Neish;Todd F. Walter;Per K. Enge

  • Worldwide Vertical Guidance of Aircraft Based on Modernized GPS and New Integrity Augmentations

    T. Walter;P. Enge;J. Blanch;B. Pervan

  • Wide area differential gps reference system and method

    Per K. Enge;Todd F. Walter;Yi-Chung Chao

  • An Optimized Multiple Hypothesis RAIM Algorithm for Vertical Guidance

    Juan Blanch;Alex Ene;Todd Walter;Per Enge

  • Critical Elements for a Multi‐Constellation Advanced RAIM

    Juan Blanch;Todd Walter;Per Enge;Stefan Wallner

  • CHARACTERISTICS OF DEEP GPS SIGNAL FADING DUE TO IONOSPHERIC SCINTILLATION FOR AVIATION RECEIVER DESIGN

    Jiwon Seo;Todd Walter;Tsung Yu Chiou;Per Enge

  • Statistical characterization of GPS signal-in-space errors

    Liang Heng;Grace Xingxin Gao;Todd Walter;Per Enge

  • Using WAAS Ionospheric Data to Estimate LAAS Short Baseline Gradients

    Seebany Datta-Barua;Todd Walter;Sam Pullen;Ming Luo

  • Bounding higher-order ionosphere errors for the dual-frequency GPS user

    S. Datta-Barua;T. Walter;J. Blanch;P. Enge

  • Availability Impact on GPS Aviation due to Strong Ionospheric Scintillation

    Jiwon Seo;T. Walter;P. Enge

  • Discrete simulation of power law noise (for oscillator stability evaluation)

    N.J. Kasdin;T. Walter

  • Optimal Positioning for Advanced Raim

    Juan Blanch;Todd Walter;Per Enge

  • Satellite Navigation for Aviation in 2025

    J. Blanch;T. Walter;P. Enge

  • Matlab Simulation Toolset for SBAS Availability Analysis

    Shau-Shiun Jan;Wyant Chan;Todd Walter;Per Enge

Frequent Co-Authors

Per Enge
Per Enge Stanford University
Dennis M. Akos
Dennis M. Akos University of Colorado Boulder
Bradford W. Parkinson
Bradford W. Parkinson Stanford University
Andrew J. Hansen
Andrew J. Hansen Montana State University
Anthony J. Mannucci
Anthony J. Mannucci California Institute of Technology
Cesar E. Valladares
Cesar E. Valladares The University of Texas at Dallas
Cathryn N. Mitchell
Cathryn N. Mitchell University of Bath
E. R. de Paula
E. R. de Paula National Institute for Space Research
Keith M. Groves
Keith M. Groves Boston College
Xiaoqing Pi
Xiaoqing Pi Jet Propulsion Lab

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