Plotting latitude, longitude,and signal strength
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Simran Sandhu
el 8 de En. de 2019
Respondida: Jacob Halbrooks
el 3 de Abr. de 2020
I have a list of latitude and longitude along with signal strength obtained from mobile towers in a certain region. I have all the data in CSV format. In total, I have 4 CSV files.
How can I plot that data in MATLAB?
As a range of signal strength will be shown by different colour and other range will be shown in different colour.
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KSSV
el 9 de En. de 2019
Read about pcolor, surf, scatter, conourf. All these can be used to plot what you want.
The below link shows the possible plots which can be obtained from MATLAB. YOu can have a look on the link, it has a plot and respective code from which you can learn.
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KSSV
el 9 de En. de 2019
Editada: KSSV
el 9 de En. de 2019
To use contour you should be having a matrix data. With your data..this is what I can get:
[num,txt,raw] = xlsread('powerlevel.csv') ;
lat = num(:,1) ;
lon = num(:,2) ;
val = num(:,3) ;
scatter(lon,lat,10,val,'filled') ; colorbar
m = 100 ;
x = linspace(min(lon),max(lon),m) ;
y = linspace(min(lat),max(lat),m) ;
[X,Y] = meshgrid(x,y) ;
Z = griddata(lon,lat,val,X,Y) ;
contour(X,Y,Z) ;
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Jacob Halbrooks
el 3 de Abr. de 2020
A new feature is available in R2020a to support importing and visualizing propagation data like this. The feature is available in Communications Toolbox and Antenna Toolbox and supports table-based files or data which contains latitude, longitude, and corresponding values like signal strength. You can learn about the feature here, and below is an example contour map that you can create with it:
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