Robert, WiFi signal is essentially electromagnetic signal. You can imagine it as a light source, having all the effects like reflection and refraction. Some naive pictures that show how wrong are the circular models can be seen here: https://www.degruyter.com/document/doi/10.1515/phys-2019-0039/html
On Tue, Oct 18, 2022 at 1:40 PM Robert Dorinel Tureac <[email protected]> wrote: > Nice work there! > > But with that you do not represent the signal strength right? I'm just > looking for a manner to draw that Signal. I.e. draw a polygon or circle > with a red colour where the RSSI is stronger. > > El mar., 18 oct. 2022 12:34, Darafei "Komяpa" Praliaskouski <[email protected]> > escribió: > >> Hi, >> >> RSSI has very complex shapes in the city terrain, not really following a >> usable distance formula. >> >> That being said I once upon a time got myself a ladder, excel spreadsheet >> and measured one specific access point using my phone and regressed this >> piece of formula. >> >> 0.2347 * exp(-0.07877 * (ap -> 'ss') :: float) as dst >> >> >> On Tue, Oct 18, 2022 at 1:16 PM Robert Dorinel Tureac <[email protected]> >> wrote: >> >>> Hi there guys, >>> >>> Is there any way/function/method/possibility to represent the signal >>> strength of a device having the attributes RSSI and latitude-longitude? >>> >>> I'm trying to achieve something like this, but with no success (yet): >>> https://duckduckgo.com/?q=rssi+signal+wifi+map&atb=v342-1&iar=images&iax=images&ia=images&iai=https%3A%2F%2Fstatic.engeniuscdn.com%2Ffaq_questions%2Fhc%2Farticle_attachments%2F360010237471%2FIn_open.jpg >>> >>> >>> Thanks in advance! >>> >>> Cheers >>> _______________________________________________ >>> postgis-users mailing list >>> [email protected] >>> https://lists.osgeo.org/mailman/listinfo/postgis-users >>> >> _______________________________________________ >> postgis-users mailing list >> [email protected] >> https://lists.osgeo.org/mailman/listinfo/postgis-users >> > _______________________________________________ > postgis-users mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/postgis-users >
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