Media type: E-Article Title: A 3D Ray Launching Time-Frequency Channel Modeling Approach for UWB Ranging Applications Contributor: Otim, Timothy; Lopez-Iturri, Peio; Azpilicueta, Leyre; Bahillo, Alfonso; Diez, Luis Enrique; Falcone, Francisco Published: Institute of Electrical and Electronics Engineers (IEEE), 2020 Published in: IEEE Access, 8 (2020), Seite 97321-97334 Language: Not determined DOI: 10.1109/access.2020.2996408 ISSN: 2169-3536 Keywords: General Engineering ; General Materials Science ; General Computer Science Origination: Footnote: Access State: Open Access