Fig. 1. Geometrical relationship for depth estimation of target.
Fig. 2. Trigonometric relationship for calculating Vradial.
Fig. 3. Performance variations with changes in horizontal range.
Fig. 4. Performance variations with changes in relative depth.
Fig. 5. Small angle approximation error with angle.
Table 1. Input Parameters for simulation.
References
- J. G. Lim, Performance analysis of automatic target detection algorithm for underwater proximity detection sensor node, (Master's degree, Master's degree, 2012).
- D. Kapolka, "Equivalence of the waveguide invariant and two path ray theory methods for range prediction based on Lloyd's mirror patterns," J. Acoust. Soc. Am. 123, 3596 (2008). https://doi.org/10.1121/1.2934751
- D. Desrochers, High resolution beamforming techniques applied to a DIFAR sonobuoys, (Master's degree, Royal Military College of Canada, 1999).
- Lecture21: The Doppler Effect, http://users.physics.harvard.edu/-schwartz/15cFiles/Lecture21-Doppler.pdf, 2019.
- R. Olson and D. H. Cress, "Passive Acoustic Range Estimation of Helicopters," Technical Report EL-92-13 of US Army Corps of Engineers, 06-08 (1992).