Research Article

Experimental Study on Echo Characteristics of Multistatic Large-Scale Underwater Complex Target

Figure 20

Frequency domain energy distribution of strong reflection source in abeam azimuth.
(a) Frequency domain energy distribution of outer shell echo
(b) Frequency domain energy distribution of inner shell echo
(c) Frequency domain energy distribution of fairwater 1 echo
(d) Frequency domain energy distribution of fairwater 2 echo