Abstract
This paper examines the problem of suppressing the dynamic clutter and multitarget detection in a digital video broadcasting-terrestrial (DVB-T)-based passive bistatic radar (PBR). A two-step low-complexity clutter suppression method is presented to attenuate the nonstationary multipath/clutter in a multiple-frequency network. In the first step, we estimate the multipath signals, as orthogonal frequency-division multiplexing channel coefficients, in a symbolwise approach. The variation of the clutter signal is tracked, using the complex exponential basis expansion model, in the second step. Then, the estimated multipath/clutter signals are subtracted from the received signals. An iterative algorithm is also proposed for detecting targets sequentially in a multitarget scenario. The performance of the proposed method is derived analytically, and a criterion is suggested for comparing different clutter cancellation schemes. The resulting solution is shown to be more efficient than other methods in terms of time and memory complexities.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Transactions on Aerospace and Electronic Systems
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
