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The compressed spectrum sensing problem for cognitive radio (CR) spectrum sharing in device-to-device (D2D) communications is investigated, with an emphasis on collaborative sensing strategies for multi-user CR-based D2D networks. Because the D2D users are assumed to be geographically close to each other, the same spectral occupancy is expected, which can be exploited in the sensing algorithm design...
When radar transmits wideband signals, the range resolution is smaller than the size of the target. Then the target is spread in the range dimension and the energy is scattered. In this paper, the characteristic of the echoes for wideband radar is firstly described. Then a new method called segment integrated correlation detection (SICD) is proposed for moving target detection in a wideband radar...
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