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- W4293454545 abstract "Radio frequency interference (RFI) mitigation and radar echo recovery are critically important for the proper functioning of ultra-wideband (UWB) radar systems using one-bit sampling techniques. We recently introduced a technique for one-bit UWB radar, which first uses a majorization-minimization method for RFI parameter estimation followed by a sparse method for radar echo recovery. However, this technique suffers from high computational complexity due to the need to estimate the parameters of each RFI source separately and iteratively. In this paper, we present a computationally efficient joint RFI mitigation and radar echo recovery framework to greatly reduce the computational cost. Specifically, we exploit the sparsity of RFI in the fast-frequency domain and the sparsity of radar echoes in the fast-time domain to design a one-bit weighted SPICE (SParse Iterative Covariance-based Estimation) based framework for the joint RFI mitigation and radar echo recovery of one-bit UWB radar. Both simulated and experimental results are presented to show that the proposed one-bit weighted SPICE framework can not only reduce the computational cost but also outperform the existing approach for decoupled RFI mitigation and radar echo recovery of one-bit UWB radar." @default.
- W4293454545 created "2022-08-29" @default.
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- W4293454545 date "2021-03-19" @default.
- W4293454545 modified "2023-09-30" @default.
- W4293454545 title "Joint RFI Mitigation and Radar Echo Recovery for One-Bit UWB Radar" @default.
- W4293454545 doi "https://doi.org/10.48550/arxiv.2103.10827" @default.
- W4293454545 hasPublicationYear "2021" @default.
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