Improved Detection Performance for Passive Radars Exploiting Known Communication Signal Form
Improved Detection Performance for Passive Radars Exploiting Known Communication Signal Form
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DOI：
10.1109/lsp.2018.2870341
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发表时间：
2018-05
影响因子：
3.9
通讯作者：
Anantha K. Karthik;Rick S. Blum
中科院分区：
文献类型：
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作者：
Anantha K. Karthik;Rick S. Blum
在这封信中，我们探讨无源多输入多输出雷达网络中的目标检测问题。在假定已知非合作发射站所使用的信号格式的先验知识的情况下，推导出一种广义似然比检验方法。与不利用此信息的情况相比，在已知信号格式的情况下，广义似然比检验的性能通常要优越得多。此外，随着每个符号的样本数量增加，性能会提高，并且当每个符号的样本数量足够大时，性能非常接近具有已知发射信号的有源雷达的性能。
In this letter, we address the problem of target detection in passive multiple-input multiple-output radar networks. A generalized likelihood ratio test is derived, assuming prior knowledge of the signal format used in the noncooperative transmit stations. The performance of the generalized likelihood ratio test in the known signal format case is often significantly more favorable when compared to the case that does not exploit this information. Further, the performance improves with increasing number of samples per symbol and for a sufficiently large number of samples per symbol, the performance closely approximates that of an active radar with a known transmitted signal.