Modified synthetic aperture algorithm for sonar systems. (English) Zbl 1290.65095
Summary: It is hard to negate the effects of ocean waves on synthetic aperture sonar that has to be operated in the ocean and many efforts to deal with ocean waves have been made. One of these efforts is motion compensation by calculating phase errors with a computer. But the synthetic aperture algorithm with motion compensation is heavy, and remains difficult to be executed on a real-time basis. Thus, a modified synthetic aperture algorithm is proposed in this paper. This algorithm, which is named a 1.5-dimensional algorithm, is in between a one-dimensional and two-dimensional algorithm. It synthesizes a virtual aperture about 10 times faster than other algorithms in a computer simulation.
MSC:
| 65M99 | Numerical methods for partial differential equations, initial value and time-dependent initial-boundary value problems |
References:
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