Yasuhiro Koyama
- Aerospace Engineering top 2%
- Astronomy and Astrophysics top 5%
- Oceanography top 5%
- Atomic and Molecular Physics, and Optics
- Atmospheric Science
- Co-authors
- Tetsuro KondoThomas HobigerRyuichi IchikawaMamoru SekidoTomoji TakasuToshikazu KondoY. TakahashiFuminori Takahashi
- Topics
- GNSS positioning and interference (45 papers)Geophysics and Gravity Measurements (34 papers)Ionosphere and magnetosphere dynamics (19 papers)
- Partner nations
- JapanAustriaUnited States
In The Last Decade
Yasuhiro Koyama
73 papers receiving 601 citations
Peers
Comparison fields: 5 of 47
- Aerospace Engineering 486
- Astronomy and Astrophysics 396
- Oceanography 351
- Atomic and Molecular Physics, and Optics 85
- Atmospheric Science 56
Countries citing papers authored by Yasuhiro Koyama
This map shows the geographic impact of Yasuhiro Koyama'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 Yasuhiro Koyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Yasuhiro Koyama more than expected).
Fields of papers citing papers by Yasuhiro Koyama
This network shows the impact of papers produced by Yasuhiro Koyama. 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 Yasuhiro Koyama. The network helps show where Yasuhiro Koyama may publish in the future.
Co-authorship network of co-authors of Yasuhiro Koyama
This figure shows the co-authorship network connecting the top 25 collaborators of Yasuhiro Koyama. A scholar is included among the top collaborators of Yasuhiro Koyama 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 Yasuhiro Koyama. Yasuhiro Koyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 6 | |
| 2 | 3 | |
| 3 | 20th Meeting of the European VLBI Group for Geodesy and Astronomy, Bonn, March 29-30,2011 | 0 |
| 4 | GPU Based Software Correlators - Perspectives for VLBI2010 | 1 |
| 5 | Next-generation A/D Sampler ADS3000+ for VLBI2010 | 2 |
| 6 | Design Aspects of the VLBI2010 System | 51 |
| 7 | Progress Report of the IVS VLBI2010 Committee | 6 |
| 8 | 1 | |
| 9 | Evaluation of a Laser-pumped Cs Gas-cell Frequency Standard on Geodetic VLBI | 1 |
| 10 | MK3TOOLS - Seamless Interfaces for the Creation of VLBI Databases from Post-Correlation Output | 1 |
| 11 | VLBI measurements for time transfer between time and frequency laboratories | 1 |
| 12 | 12 | |
| 13 | An evaluation of atmospheric path delay correction in differential VLBI experiments for spacecraft tracking | 0 |
| 14 | Internet VLBI System Based on the PC-VSSP (IP-VLBI) Board | 1 |
| 15 | Observing Electromagnetic Radiation by Leonid Impacts on the Moon | 1 |
| 16 | Radio science results: An evaluation of atmospheric gradient using water vapor radiometers in Kashima, Japan | 0 |
| 17 | GALAXY: Real-Time VLBI for Radio Astronomy Observations | 0 |
| 18 | Recent VLBI activities at the Communications Research Laboratory, Japan. | 1 |
| 19 | 2 | |
| 20 | Geodetic VLBI activities of Communications Research Laboratory -Contribution to NASA Crustal Dynamics Project- | 2 |
About Yasuhiro Koyama
Yasuhiro Koyama is a scholar working on Oceanography, Astronomy and Astrophysics and Aerospace Engineering, having authored 86 papers that have together received 665 indexed citations. Recurring topics across this work include GNSS positioning and interference (45 papers), Geophysics and Gravity Measurements (34 papers) and Ionosphere and magnetosphere dynamics (19 papers). The work is most often cited by research in Oceanography (351 citations), Astronomy and Astrophysics (396 citations) and Aerospace Engineering (486 citations). Yasuhiro Koyama has collaborated with scholars based in Japan, Austria and United States. Frequent co-authors include Tetsuro Kondo, Thomas Hobiger, Ryuichi Ichikawa, Mamoru Sekido, Tomoji Takasu, Toshikazu Kondo, Y. Takahashi, Fuminori Takahashi, Tadahiro Gotoh and Junichi Nakajima. Their work appears in journals such as Journal of Geophysical Research Atmospheres, PLoS ONE and Geophysical Research Letters.
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.