What is noticeable about the acoustic field before and after processing? The center of the beam that contains the harmonic frequencies has been filtered out using conventional processing techniques.

The illustration to the left of the acoustic field shows the receive filter processing the same frequencies as were contained in the transmitted signal.

What is noticeable about the acoustic field before and after processing? The center of the beam that contains the harmonic frequencies has been filtered out using conventional processing techniques. The illustration to the left of the acoustic field shows the receive filter processing the same frequencies as were contained in the transmitted signal.