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2023-03-05
Fast and Efficient Clutter Cancellation Approach for DVB-T Based Passive Radars
By
Progress In Electromagnetics Research B, Vol. 98, 165-187, 2023
Abstract
In passive radar systems, target echoes are submerged in the sidelobes of the static clutter, which includes multiple reflection echoes from the objects located in the operating environment of the considered system. This undesired part of the collected signals degrades the detector performances. Consequently, the reduction of the static clutter contribution is essential to ensuring an efficient operation of passive radars. In the literature, many algorithms and methods have been proposed for clutter suppression, where a good quality of the received signals is required to ensure an efficient clutter suppression. These methods require a considerable amount of data to operate which increases the complexity and the calculation load of the algorithms. In this paper, an important contribution is brought by simultaneously improving the signals quality and reducing the calculation load in the static clutter suppression process. Since the static clutter can be considered as time-invariant, the proposed approach exploits the specific architecture of the DVB-T signals to provide a noise reduction in the receiving channels by averaging the received signals after being split into symbols. Three different methods are proposed to examine the efficiency of the proposed approach. The performances of the proposed approach are validated through a set of simulations and verified using real data.
Citation
Mohamed Elamine Nouar, Osama Mahfoudia, Azzedine Bouaraba, and Xavier Neyt, "Fast and Efficient Clutter Cancellation Approach for DVB-T Based Passive Radars," Progress In Electromagnetics Research B, Vol. 98, 165-187, 2023.
doi:10.2528/PIERB22110305
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