{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T05:26:46Z","timestamp":1772774806361,"version":"3.50.1"},"reference-count":44,"publisher":"IEEE","license":[{"start":{"date-parts":[[2024,10,14]],"date-time":"2024-10-14T00:00:00Z","timestamp":1728864000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2024,10,14]],"date-time":"2024-10-14T00:00:00Z","timestamp":1728864000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,10,14]]},"DOI":"10.1109\/ipin62893.2024.10786184","type":"proceedings-article","created":{"date-parts":[[2024,12,12]],"date-time":"2024-12-12T19:07:40Z","timestamp":1734030460000},"page":"1-7","source":"Crossref","is-referenced-by-count":2,"title":["Precise near-ultrasonic tilt determination for smartphones"],"prefix":"10.1109","author":[{"given":"Jan","family":"Grottke","sequence":"first","affiliation":[{"name":"RWTH Aachen University,Geodetic Institute and Chair for Computing in Civil Engineering & Geo Information Systems,Aachen,Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel","family":"Grottke","sequence":"additional","affiliation":[{"name":"RWTH Aachen University,Geodetic Institute and Chair for Computing in Civil Engineering & Geo Information Systems,Aachen,Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J\u00f6rg","family":"Blankenbach","sequence":"additional","affiliation":[{"name":"RWTH Aachen University,Geodetic Institute and Chair for Computing in Civil Engineering & Geo Information Systems,Aachen,Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"263","reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.33012\/2021.17895"},{"key":"ref2","first-page":"21","article-title":"Automated extraction of image coordinates for Optical Indoor Positioning","volume-title":"Proc. of Int. Conf. on Indoor Positioning and Indoor Navigation (IPIN)","author":"Willert"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.3390\/electronics10050618"},{"issue":"3","key":"ref4","first-page":"63","article-title":"Indoor-Positionierung & lokale Positionierungssysteme","volume":"6","author":"Blankenbach","year":"2017","journal-title":"Leitfaden-Mobile GIS, Von der GNSSbasierten Datenerfassung bis zu Mobile Mapping"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.3390\/s23083876"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1109\/meditcom49071.2021.9647652"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.3390\/s22010026"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1080\/10095020.2019.1613778"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1109\/IPIN54987.2022.9918150"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1109\/TNSRE.2017.2705285"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1088\/1742-6596\/648\/1\/012007"},{"issue":"2","key":"ref12","first-page":"1","article-title":"Using the ADXL202 in pedometer and personal navigation applications","volume":"2","author":"Weinberg","year":"2002","journal-title":"Analog Devices AN-602 application note"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1109\/UBICOMM.2009.23"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1109\/IPIN.2013.6817924"},{"key":"ref15","first-page":"1","article-title":"Enhancing the performance of pedometers using a single accelerometer","volume":"41","author":"Scarlett","year":"2007","journal-title":"Application Note, Analog Devices"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.5081\/jgps.3.1.273"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1002\/wcm.2733"},{"key":"ref18","first-page":"1735","article-title":"On foot navigation: Continuous step calibration using both complementary recursive prediction and adaptive kalman filtering","volume-title":"Proc. of ION GPS","author":"Ladetto"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.1109\/JSEN.2017.2776100"},{"key":"ref20","volume-title":"Smartphone Layout using the example of the Galaxy S20","year":"2024"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.1145\/345910.345917"},{"key":"ref22","doi-asserted-by":"publisher","DOI":"10.3390\/s22082927"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.1109\/JSEN.2022.3148529"},{"key":"ref24","doi-asserted-by":"publisher","DOI":"10.1145\/2146417.2146421"},{"key":"ref25","doi-asserted-by":"publisher","DOI":"10.3390\/s22197345"},{"key":"ref26","doi-asserted-by":"publisher","DOI":"10.1007\/s11277-021-08209-5"},{"key":"ref27","doi-asserted-by":"publisher","DOI":"10.3390\/jsan3010044"},{"key":"ref28","doi-asserted-by":"publisher","DOI":"10.1109\/SURV.2009.090103"},{"key":"ref29","doi-asserted-by":"publisher","DOI":"10.1109\/TMC.2006.57"},{"key":"ref30","volume-title":"Android Documentation for High-resolution audio","year":"2024"},{"key":"ref31","volume-title":"High sampling rate audio recording app Recorder Plus","year":"2024"},{"key":"ref32","volume-title":"High sampling rate audio recording app Super Recorder","year":"2024"},{"key":"ref33","volume-title":"Optical Frequency-Modulated Continuous-Wave (FMCW) Interferometry","author":"Zheng","year":"2005"},{"key":"ref34","doi-asserted-by":"publisher","DOI":"10.1109\/IPIN57070.2023.10332467"},{"key":"ref35","article-title":"An overview of FMCW systems in MATLAB","author":"Parrish","year":"2010","journal-title":"EE 383V Radar Principles"},{"key":"ref36","volume-title":"Detecting and classifying low probability of intercept radar","volume":"2","author":"Pace","year":"2009"},{"key":"ref37","volume-title":"Introduction to radar systems","volume":"3","author":"Skolnik","year":"1980"},{"key":"ref38","volume-title":"AngleCam Pro-pitch & azimuth","year":"2024"},{"key":"ref39","doi-asserted-by":"publisher","DOI":"10.23919\/CCC50068.2020.9188875"},{"key":"ref40","doi-asserted-by":"publisher","DOI":"10.1109\/TIM.2020.2981985"},{"key":"ref41","doi-asserted-by":"publisher","DOI":"10.5194\/isprs-annals-V-1-2020-181-2020"},{"key":"ref42","doi-asserted-by":"publisher","DOI":"10.33012\/navi.632"},{"key":"ref43","doi-asserted-by":"publisher","DOI":"10.3390\/s141222864"},{"key":"ref44","doi-asserted-by":"publisher","DOI":"10.1109\/ICORR.2011.5975346"}],"event":{"name":"2024 14th International Conference on Indoor Positioning and Indoor Navigation (IPIN)","location":"Kowloon, Hong Kong","start":{"date-parts":[[2024,10,14]]},"end":{"date-parts":[[2024,10,17]]}},"container-title":["2024 14th International Conference on Indoor Positioning and Indoor Navigation (IPIN)"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx8\/10786007\/10786103\/10786184.pdf?arnumber=10786184","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,12,13]],"date-time":"2024-12-13T06:30:23Z","timestamp":1734071423000},"score":1,"resource":{"primary":{"URL":"https:\/\/ieeexplore.ieee.org\/document\/10786184\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,10,14]]},"references-count":44,"URL":"https:\/\/doi.org\/10.1109\/ipin62893.2024.10786184","relation":{},"subject":[],"published":{"date-parts":[[2024,10,14]]}}}