E. Hammerstad

1.5k total citations · 2 hit papers
12 papers, 1.0k citations indexed

About

E. Hammerstad is a scholar working on Oceanography, Ocean Engineering and Aerospace Engineering. According to data from OpenAlex, E. Hammerstad has authored 12 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Oceanography, 5 papers in Ocean Engineering and 4 papers in Aerospace Engineering. Recurrent topics in E. Hammerstad's work include Underwater Acoustics Research (8 papers), Underwater Vehicles and Communication Systems (5 papers) and Advanced SAR Imaging Techniques (3 papers). E. Hammerstad is often cited by papers focused on Underwater Acoustics Research (8 papers), Underwater Vehicles and Communication Systems (5 papers) and Advanced SAR Imaging Techniques (3 papers). E. Hammerstad collaborates with scholars based in Norway, Sweden and France. E. Hammerstad's co-authors include Ole Kiel Jensen, Roy Edgar Hansen, Torstein Olsmo Sæbø, H.J. Callow, Per Espen Hagen, K. E. Nilsen and Kenneth Gade and has published in prestigious journals such as .

In The Last Decade

E. Hammerstad

11 papers receiving 905 citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Accurate Models for Microstrip Computer-Aided Design

1980 546 citations E. Hammerstad, Ole Kiel Jensen profile →
Equations for Microstrip Circuit Design

1975 352 citations E. Hammerstad profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
E. Hammerstad Norway	8	828	523	106	69	64	12	1.0k
Yinchao Chen United States	14	645 0.8×	389 0.7×	260 2.5×	63 0.9×	93 1.5×	105	897
L.P. Ligthart Netherlands	16	536 0.6×	616 1.2×	118 1.1×	21 0.3×	199 3.1×	103	912
Michael T. Tuley United States	7	237 0.3×	573 1.1×	171 1.6×	74 1.1×	84 1.3×	15	827
Guo‐Qiang Zhu China	15	260 0.3×	412 0.8×	246 2.3×	39 0.6×	88 1.4×	69	648
Il‐Suek Koh South Korea	13	366 0.4×	265 0.5×	197 1.9×	23 0.3×	51 0.8×	96	543
Henning Braunisch United States	18	644 0.8×	168 0.3×	297 2.8×	43 0.6×	131 2.0×	64	928
John Shaeffer United States	9	390 0.5×	575 1.1×	350 3.3×	31 0.4×	107 1.7×	25	932
Richard Hodges United States	18	566 0.7×	1.2k 2.3×	214 2.0×	15 0.2×	51 0.8×	81	1.5k
K. Iizuka Canada	14	305 0.4×	258 0.5×	153 1.4×	27 0.4×	102 1.6×	64	563
Özlem Özgün Türkiye	12	311 0.4×	383 0.7×	273 2.6×	25 0.4×	50 0.8×	61	586

Countries citing papers authored by E. Hammerstad

Since Specialization

Citations

This map shows the geographic impact of E. Hammerstad'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 E. Hammerstad with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites E. Hammerstad more than expected).

Fields of papers citing papers by E. Hammerstad

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by E. Hammerstad. 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 E. Hammerstad. The network helps show where E. Hammerstad may publish in the future.

Co-authorship network of co-authors of E. Hammerstad

This figure shows the co-authorship network connecting the top 25 collaborators of E. Hammerstad. A scholar is included among the top collaborators of E. Hammerstad 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 E. Hammerstad. E. Hammerstad is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

12 of 12 papers shown

1.

Sæbø, Torstein Olsmo, et al.. (2007). Bathymetric Capabilities of the HISAS Interferometric Synthetic Aperture Sonar. 1–10. 20 indexed citations

2.

Hammerstad, E.. (2005). Computer-Aided Design of Microstrip Couplers with Accurate Discontinuity Models. 81. 54–56. 37 indexed citations

3.

Hammerstad, E., et al.. (2005). Ultra Wide Swath Deep Sea Interferometric Multibeam Echo Sounder With Sea Bottom Imaging System. 63–68. 1 indexed citations

4.

Hansen, Roy Edgar, Torstein Olsmo Sæbø, H.J. Callow, Per Espen Hagen, & E. Hammerstad. (2005). Synthetic aperture sonar processing for the HUGIN AUV. 1090–1094 Vol. 2. 27 indexed citations

5.

Hammerstad, E., et al.. (2005). A Microprocessor Controlled Automatic Network Analyzer in a Microwave Computer-Aided Design System. 78. 186–188.

6.

Hammerstad, E., et al.. (2005). Field Testing Of A New Deep Water Multibeam Echo Sounder. 2. 743–749. 12 indexed citations

7.

Hammerstad, E.. (2002). Multibeam echo sounder for EEZ mapping. 2. 1255–1259. 4 indexed citations

8.

Hammerstad, E., et al.. (2002). Advances in multibeam echo sounder technology. I482–I487. 10 indexed citations

9.

Hagen, Per Espen, et al.. (2001). Interferometric Synthetic Aperture Sonar for AUV Based Mine Hunting: The SENSOTEK project. 12 indexed citations

10.

Hammerstad, E., et al.. (1985). Field Performance of the Benigraph High-Resolution Multibeam Seafloor Mapping System. 682–685. 3 indexed citations

11.

Hammerstad, E. & Ole Kiel Jensen. (1980). Accurate Models for Microstrip Computer-Aided Design. 407–409. 546 indexed citations breakdown →

12.

Hammerstad, E.. (1975). Equations for Microstrip Circuit Design. 268–272. 352 indexed citations breakdown →

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.

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