Wideband target strength measurements

The development of the Hydroshock
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III impulsive sound source has allowed the collection of acoustic target strength data over a wide frequency range. Deconvolution of a shock-echo pair provides a wideband target impulse response. Convolution off this impulse response with any sonar ping whose spectrum is defined in the frequency range of the impulse response will generate the echo that would have resulted from that ping. The advantages of frequency domain processing are discussed and several simulated echoes are presented.