Enhanced underwater target tracking using innovative spectral denoising method

This paper explores the application of an innovative spectral denoisng method to improve underwater target tracking capabilities and the bearing estimation accuracy using uniform linear array of passive sonobuoys. Direction of arrival (DOA) estimation using the denoised array data is attained via Bartlett beamforming which is widely employed in underwater target tracking systems. The proposed technique is tested for simulated single and multiple source detection at relatively low signal to noise ratios. Results are presented to illustrate the improvement in bearing estimation using the proposed technique.