Horizontal array passive inversion in range-independent environments This paper describes a passive approach, called Passive Geo-Acoustic Inversion Techniques (PGAIT) that uses matched-field processing on signals from ships of opportunity for water sound speed and sediment characterization The signals are received on a horizontal array and broadband and temporal averaging techniques are used to reduce ambiguities
Geoacoustic inversion with a horizontal array making use of an . . . To solve the problem of using opportunity sources for geoacoustic inversion, an inversion method for seabed acoustic parameters based on reconstructing the incoherent beamformed outputs of a horizontal array is proposed in this paper
Performance Comparison Between Vertical and Horizontal Arrays for . . . Range-inde-pendent modeling is used for inverting all the horizontal array data considered in this paper Using the Inversion Techniques Workshop Benchmark Test Cases, the performance of a horizontal (simulated towed) and vertical arrays are compared and found to be very similar
Microsoft Word - PGAIT ICA. doc The U S Navy has investigated several inversion techniques to characterize seabed sediments, most of which use an active sonar ap-proach that is limited to areas near the receiver Passive techniques offer the potential to remain covert and greatly extend the area of seabed characterization