Pulsed parametric array

In a previous paper [J. Acoust. Soc. Am. Suppl 1 70, S89 (1981)] on the scattering of a cw plane wave by a pulse, the frequency of the scattered signal was found to be fs = fcw[(1 − cos θ)/(1 − cos φ)], where fs is the frequency of the scattered signal, fcw is the frequency of the cw plane wave, θ i... View More