Table of Contents

Original Articles

• Open Access

  Doppler Positioning Using Multi-Constellation LEO Satellite Broadband Signals as Signals of Opportunity

  Amir Allahvirdi-Zadeh, Ahmed El-Mowafy, and Kan Wang

  NAVIGATION: Journal of the Institute of Navigation June 2025, 72 (2) navi.691; DOI: https://doi.org/10.33012/navi.691
• Open Access

  Performance Evaluation of DFMC SBAS Messages Broadcast by the Japanese Quasi-Zenith Satellite System (QZSS) in Oslo, Norway

  Toru Takahashi, Susumu Saito, Mitsunori Kitamura and Takeyasu Sakai

  NAVIGATION: Journal of the Institute of Navigation June 2025, 72 (2) navi.692; DOI: https://doi.org/10.33012/navi.692
• Open Access

  Thirty Years of Maintaining WGS 84 with GPS

  William Konyk, Alex Smith, Bob Wong, and Andrew Tollefson

  NAVIGATION: Journal of the Institute of Navigation June 2025, 72 (2) navi.693; DOI: https://doi.org/10.33012/navi.693
• Open Access

  Comprehensive Analysis of Acquisition Time for a Multi-Constellation and Multi-Frequency GNSS Receiver at GEO Altitude

  Young-Jin Song, Ki-Ho Kwon, and Jong-Hoon Won

  NAVIGATION: Journal of the Institute of Navigation June 2025, 72 (2) navi.694; DOI: https://doi.org/10.33012/navi.694