In looking at the viewed satellites, the following relevant points are noted: This check can already be done with any current version of Android, which include the satellites in view as well as their azimuth and elevation. The first check on the measurements that has been done is related to the satellite visibility. ![]() Nexus 5X SoC Qualcomm Snapdragon 808 (GPS chipset Qualcomm® IZat™ Gen8C).Nexus 6 SoC Qualcomm Snapdragon 805 (GPS chipset Qualcomm® IZat™ Gen8B).These two devices feature the following System-On-Chip (SoC) from Qualcomm: We tested the app in a Motorola Nexus 6 and a LG Nexus 5X, that were placed side by side, with a separation of 25cm. The data shown in this post corresponds to a test done in the rooftop of Rokubun’s office building which offers a clear sky visibility with an elevation mask of ca. The question “how to obtain GPS pseudoranges from smartphones?” can be easily answered if one looks at the Android N API documentation. Google makes it easy now to process the GNSS raw measurements in Android powered devices. For the time being, this feature will be only available in Android powered devices, as Apple has not made any similar announcement in this direction as of today. ![]() A note on this announcement done at the Google I/O 2016 was published in GPS World, last June 2016. ![]() Before that, only the position fixes and some basic information on the satellites in view were available. Following the release of the Android N Preview for App developers, we took the chance of implementing a simple app to fetch the GNSS raw measurements, something that was not possible before this OS release.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |