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Index Modulation for Frequency Diverse Array
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DOI：10.1109/LAWP.2019.2952576.png)
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摘要
En 中文
The index modulation (IM) approach adds an extra signal modulation dimension by utilizing a subcarrier index domain, which is in addition to the traditional IQ domain. A frequency diverse array (FDA) technology is rapidly developing as a new technique for radar systems. In this letter, a novel transmitter architecture for the FDA, combining the IM concept with the FDA, namely IM-FDA, is presented. Compared with conventional frequency diverse arrays (CFDAs), the proposed architecture offers thumbtack-like beampatterns, which can decouple the range and angle dependence, an issue existing in the CFDA. An additional benefit is that, apart from sensing target location, information can be conveyed to the targets through the selected frequency offset indices in the proposed scheme. The transmitter architecture is elaborated along with its design details, and the efficacy of the proposed architecture is validated via numerical results for the transmit beampattern by comparison with the CFDA and random frequency diverse array.
Keyword:
Frequency diverse array (FDA)
index modulation frequency diverse array (IM-FDA)
thumbtack-like beampattern
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4.8
论文数:
1.0W
被引数:
2.8W
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