MATLAB: Units of waveforms phased array system toolbox

Question

Hello all,

is it correct that all waveforms throughout the simulation (transmitted, radiated, propagated, reflected, collected, received and dechirped waveform) have the unit [sqrt(W)]? If so, how is the [sqrt(W)] transformed to dB in the Range-Speed Response Pattern? Estimating the spectrum by using the power spectral density psd = FFT² yields [W]. So to which power does the value in dB refer to?

Thank you!

Answer 1

Yes, you can think of it as volts. The dB is always defined as 10*log10(W).

HTH