recently i was going through a system which can detect laser threats arround 360 degree field of view, but the specification says the angle accuracy in rms
how to understand this kind of angles,what actually rms means here ?
please find the datasheet here
RMS = ROOT MEAN SQUARE
https://en.wikipedia.org/wiki/Root_mean_square
You use the r.m.s. error as a measure of the spread of the measured values about the predicted y value (in this case your angles).