This map shows the geographic impact of Ulrich Nickel'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 Ulrich Nickel with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ulrich Nickel more than expected).
This network shows the impact of papers produced by Ulrich Nickel. 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 Ulrich Nickel. The network helps show where Ulrich Nickel may publish in the future.
Co-authorship network of co-authors of Ulrich Nickel
This figure shows the co-authorship network connecting the top 25 collaborators of Ulrich Nickel.
A scholar is included among the top collaborators of Ulrich Nickel 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 Ulrich Nickel. Ulrich Nickel is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Nickel, Ulrich. (2013). Applications of superresolution for radar: Examples, problems and solutions. Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft). 1–5.3 indexed citations
3.
Nickel, Ulrich, et al.. (2013). Data ambiguity in passive radar tracking. Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft). 1. 349–354.2 indexed citations
4.
Feldmann, Michael, et al.. (2013). Maritime surveillance with GSM passive radar: Detection and tracking of small agile targets. Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft). 1. 245–251.20 indexed citations
5.
Feldmann, Michael & Ulrich Nickel. (2011). Target parameter estimation and tracking with adaptive beamforming. Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft). 585–590.5 indexed citations
6.
Knott, Peter & Ulrich Nickel. (2011). Design and development of a V-shaped printed dipole antenna array for passive radar. Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft). 961–964.4 indexed citations
7.
Nickel, Ulrich, et al.. (2011). GMTI tracking in the presence of Doppler and range ambiguities. Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft). 1–8.10 indexed citations
8.
Feldmann, Michael, Ulrich Nickel, & Wolfgang Koch. (2011). Adaptive air-to-air target tracking in severe jamming environment. Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft). 1–8.4 indexed citations
Meyer, Jan, et al.. (2010). Eine erweiterte Systemmodellierung zur Entwicklung von softwareintensiven Anwendungen in der Automobilindustrie.. 149–158.1 indexed citations
11.
Nickel, Ulrich, et al.. (2009). GSM passive radar for medium range surveillance. Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft). 49–52.45 indexed citations
12.
Nickel, Ulrich, Éric Chaumette, & Pascal Larzabal. (2009). Characterization of the performance of generalized monopulse estimation. 1–6.1 indexed citations
Nickel, Ulrich, et al.. (1991). The Reduction Mechanism of Peroxydisulfate, Studied by its Reaction with p-Phenylenediamines.. Zeitschrift für Physikalische Chemie. 170. 159–183.3 indexed citations
16.
Nickel, Ulrich. (1989). Subarray configurations for interference suppression with phased array radar. 2. 82–86.11 indexed citations
Nickel, Ulrich. (1982). Superresolution using an active antenna array. 87–91.5 indexed citations
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.