| DETECTING MULTIPATH EFFECTS ON SMARTPHONE GNSS MEASUREMENTS USING CMCD AND ELEVATION-DEPENDENT SNR SELECTION TECHNIQUE |
| Paper ID : 1233-GEOSPATIAL (R5) |
| Authors: |
|
Samin Nasr-Azadani *1, Mohammad Mahdi Alizadeh2, harald schuh2 1Faculty of geodesy and Geomatics Engineering, K. N. Toosi University of Technology, Valiasr Street, Tehran, Iran. 2German Research Center for Geosciences (GFZ), Potsdam, Germany |
| Abstract: |
| Regarding the increasing usage of smartphone receivers in science and industry, they must improve their positioning algorithms to increase positioning accuracy and location-based software's productivity. For this goal, various studies have been presented to remove or adjust the errors in the GNSS signal received by mobile phones. Nevertheless, so far, no study has been conducted to investigate the effect of the multipath effect on these observations. Various algorithms have been performed to study the effect of multipath, from detecting and removing this effect by correcting errors in the signal processing step to weighting the measurements to reduce the effect of multipath on the observations in the positioning step. In this article, an attempt has been made to compare the results of two different algorithms, CMCD and Selection Signal based on Elevation depended on SNR, in detecting the effect of multipath on smartphones to check their performance in detecting measurements contaminated with multipath. |
| Keywords: |
| Smartphone positioning, Multipath, Multipath detection, Multipath mitigation, CMCD (Code Minus Carrier Delta range), Elevation-dependent SNR selection |
| Status : Paper Accepted (Poster Presentation) |
