An imaging algorithm for multiple receiver synthetic aperture sonar

Abstract

With two-order Taylor expansion formula and the equivalent transformation of the radical function, the double square rooted slant range history of multiple receiver synthetic aperture sonar (SAS) can be highly approximated. Based on that, system transfer function in two-dimensional frequency domain, which is required for fast imaging algorithms, is derived. Using the derived transfer functions, this paper presents a range-Doppler (R-D) algorithm for multiple receiver SAS based on our model. Then, simulated data is used to validate the presented method.