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Nyquist rate sampling of ultra-wideband (UWB) signal is prohibitively costly and UWB receivers suffer from narrowband interference (NBI). In this paper, we present a compressed sensing (CS) based UWB receiver scheme with the capability of NBI mitigation. The key issue is to refine the measurement matrix according to the signal subspace and the NBI subspace such that the energy of the UWB signal can...
Channel estimation is a key issue for ultra-wideband (UWB) wireless communication systems. In this paper, we investigate UWB channel estimation, where the emerging compressed sensing (CS) is used to bypass the difficulty faced by Nyquist sampling. Particularly, we propose a couple of dual-kernel dictionaries, namely cross-derivative dictionary (CDD) and accessorial-derivative dictionary (ADD), to...
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