Adaptive filters for direct path and Multipath Interference cancellation: Application to FM-RTL-SDR based Passive Bistatic Radar

Attalah, Mohamed Amine; Laroussi, Toufik; Aouane, Aladdine; Mehanaoui, Ali

doi:10.1109/dt.2017.8012148

Cited by 2 publications

(1 citation statement)

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“…There are also a variety of techniques to be used in the surveillance channel. They may use adaptive filters such as LMS or RLS which are based on least squares principle [10][11][12], Extensive Cancellation Algorithm (ECA) and Sequential Cancellation Algorithm (SCA) which are based on projecting the observations onto the sub-space orthogonal to interferences [3,13,14], and Generalized Likelihood Ratio Test (GLRT) as a classical approach in detection to solve the problem [15,16].…”

Section: Introductionmentioning

confidence: 99%

Passive MIMO radar detection in the presence of clutter or multi‐path without reference channel

Derakhtian

Khorshidi

2021

IET Radar Sonar & Navi

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Target detection problem in a multiple-input multiple-output (MIMO) radar which includes non-cooperative illuminators of opportunity (IOs) and spatially distributed receivers is discussed. The receivers utilize only one processing channel and discard the difficulties in providing an ideal version of the transmitted waveforms. The signal model, in addition to the receiver noise and the possible echo from the target of interest, considers the direct-path and clutter/multi-path interferences (DPI and MPI). A Rao test and an approximated GLR test detectors are proposed to solve the problem and an innovative recursive algorithm is proposed to simultaneously estimate the nuisance parameters in the test. Then, by regarding some matrix properties in the proposed Rao detector expression, a low complexity version of the Rao detector is proposed. Besides, two detectors based on Rao and GLR principles in the case of active MIMO radar are introduced as the performance upper-bounds for the proposed detectors. The convergence and suitable performance of the proposed detectors are verified by numerical simulations. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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