Open AccessA Range Doppler Imaging Algorithm Based on the MSR Spectrum for the Multi-Aperutre Syntactic Sonar
Author(s) -
Jinhua Lv,
Jinsong Tang,
Haoran Wu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/782/4/042058
Subject(s) - azimuth , algorithm , doppler effect , correctness , computer science , taylor series , aperture (computer memory) , range (aeronautics) , series (stratigraphy) , signal (programming language) , synthetic aperture sonar , synthetic aperture radar , sonar , computer vision , optics , artificial intelligence , mathematics , physics , acoustics , geology , mathematical analysis , paleontology , materials science , astronomy , composite material , programming language
For ignoring the azimuth variation of the “non-hop-go-hop” time, the existing imaging algorithm for multi-aperture have a poor imaging in moderate squint, so this paper proposes a multi-aperture range Doppler imaging algorithm based on the spectrum of method of series reversion. The exact range history is approximated once, and the error can be adjusted by the order of Taylor series expansion. Then, the analytical expression of the two-dimensional spectrum is obtained by the method of series reversion. In signal processing, the signal of the single aperture is handle with the squint range Doppler imaging algorithm, and the azimuth spectrum is superposed to each aperture, to obtain the image. Finally, the effectiveness and correctness of the algorithm is provided by the simulation experiments.