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The accuracy of a GPS device is no different in Saudi Arabia than anywhere else in the world. Perhaps the availability of augmentation systems such as WAAS in the U.S. or EGNOS in Europe can enhance the accuracy to a certain extent. But if the manufacturer states that the device can achieve a 3m accuracy then it's probably what you will get 90 or 95% of the ...


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I'm working with our local cycling group to anonymise GPX files on two criteria (primarily for security). I've never come across a standard way of anonymising data but this satisfies two concerns of our members, while preserving accuracy along roads and speed information: Personal locations, removing 'private' areas for individuals; Obscuring timestamps so ...


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make an adjustment to the X and Y coordinate of each point by a random distance between a certain minimum and maximum offset. also make the direction of the offset (plus or minus) a random selection. Include in the randomisation that some points may have no adjustment to one or both parts of a coordinate pair.


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The video files recorded with garmin dash cam 20 are RIFF AVI files . There is a GR20 chunk in the file which contains sequence of 36 byte length binary data. Each 36 byte is about a frame, in this order: bytes |type |description ------+--------+---------------------------- 0-4 |int32 |Frame number 6-8 |int16 |Speed in Km/h 8-12 |int32 ...


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Gamin technical support has said: I can confirm that the 19x NMEA 2000 antenna does use the full 0.01dB resolution in "GNSS Sats in View" mode.


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The Leica Zeno 20 with Zeno Mobile software is exactly what you are looking for. They have Hexagon Imagery Program (30cm resolution imagery) and Open Street Maps on each device as well as shapefile, ASCII and KML file export.


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I have been researching sub-meter bluetooth recievers that can work with Collector, and found the Bad Elf 3300 GNSS Surveyor might do the trick. They claim 10-50cm accuracy after post processing: http://bad-elf.com/pages/be-gps-3300-detail Pair that with a decent tablet running Collector and a lifeproof case, and you have sub meter data collection for under ...


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Having previously answered this question (with the suggestion to use JOSM and a text editor) I think I now found a better answer. Viking GPS editor seems to do a good job. I'm new to it and I'm testing it but so far I'm really pleased. It works quite like GIS software with its ideas of layers and a basemap - but what's particularly pleasing is that it ...


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If you have GeoEvent extension for ArcGIS,you can directly configure it without much coding.The description given says "GeoEvent Extension includes connectors for common data streams including in-vehicle GPS devices, mobile devices, and social media providers. And if you need to use another type of data stream, you can find additional connectors online."


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This is simple technique you should use com.esri.core.geometry.Point class for converting your GPS lat and lng into ArcGIS map point. For Example: private Point ConvertMyLocationPoint(final double x, final double y) { Point wgspoint = new Point(x, y); Point mapPoint = (Point) GeometryEngine.project(wgspoint, SpatialReference.create(4326), ...


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Not unless you use special software; it only makes sense if your device is firmly attached to earth for year-long periods; see sec. 10.1.1 ("Site Displacement Modeling: Tectonic Plate Motion") in the BERNESE Manual: Station coordinates are changing in time due to the steady movement of tectonic plates. Figure 10.8 shows the present day major tectonic ...


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I would recommend uploading it to runkeeper. It imports the route and you can simply enter the duration time yourself. Then runkeeper wil evenly distribute the time among all the waypoints and you will get a flat speed during the complete route. From there, you could export to a gpx file again (I have done this some times now, when I had a route and just a ...


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I just went through solving this problem. The post by AndreJ is accurate and helped to start my investigation as to why the system clock was so far off. In my case, I'm connecting a GPS receiver to a Raspberry Pi 2 running Ubuntu 14.04. Raspberry Pis don't have hardware clocks and so early in the boot process, before ntp can set the clock, the time/date are ...


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Any modern GPS should have accuracy of at least <10 meters. For some Garmin units, there is an 'average' function which increases the accuracy even more by taking many measurements over a period of time.


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This seems to be a known system/software bug: http://forums.gpsreview.net/discussion/29425/garmin-gps-iii-plus-date-problem http://continuouswave.com/ubb/Forum6/HTML/002815.html http://www.colorado.edu/geography/gcraft/notes/gps/gpseow.htm and from the gpsd manpage http://www.catb.org/gpsd/gpsd.html: There are exactly two circumstances under which ...


2

Only vector points/lines can be uploaded on a GPS unit transform polygons into lines using Vector – geometric tools – polygons to lines Convert .shp layer into a .gpx layer (GPX is a default format for GPS) the names of the points/lines of your layer must be listed in a column called “name” in the attribute table of the .shp file. GPS won’t recognize ...



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