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- W2279221434 abstract "A basic problem in the space-based automatic identification system (AIS) is the low probability of detecting messages because ships' messages arrive at the receiver in the same time slot. In this study, sparse linear array optimal beam synthesis (SLA–OBS) technology is proposed to improve the capture ability of AIS messages by forming a narrow beam pattern that points in the direction of the desired AIS messages. To capture the desired signal within the narrow beam pattern, the directions of arrival (DOA) and the number of sources from ships are first estimated. Then, the ideal narrow beam pattern and minimal number of array elements are achieved synchronously with the CPLEX optimal tool. The simulations show that the message detection probability with the proposed method is greater than 95%, even when the situations are very serious, whereas the number of sparse linear antennas is small (no more than six). Copyright © 2015 John Wiley & Sons, Ltd." @default.
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- W2279221434 date "2015-12-16" @default.
- W2279221434 modified "2023-09-25" @default.
- W2279221434 title "Collision-interference cancellation for space-based AIS using beam synthesis technology with optimal sparse linear array" @default.
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- W2279221434 doi "https://doi.org/10.1002/sat.1165" @default.
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