calculate the difference on the antenna azimuth

Hi,

I need to calculate the difference of 2 azimuths (lets say analytical and real azimuth).

There is no issue if both are preatty close in between 0 and 360-eps.

The problem begins if one of them is on the other side of the 0 - if I have analytical to be 359 and actual is 1, the diff is 2 degree. If I'll calculate (analytical - actual) I'll get 358 and if I'll calculate (actual-analytical) I'll get -358 which is wrong for both cases.

Is there some convinient way to do the calculation so that the sign will also be avilable (i.e. who is bigger)

Answer 1

[Aparajith Raghuvir]

Hello Michael,

Given an angle A in degrees, the signed angle is

(A + 180) modulo 360 - 180

The difference between two angles, as in your requirement, can be found as follows:

abs(mod((a1+180), 360) - mod((b1+180), 360))

where a1, b1, are the two angles in consideration.

Hope this helps.

Thanks,

Aparajith