Threshold setting strategies for a quantized total power radiometer

被引：37

作者：

Lehtomäki, JJ ^{[1
]}

Juntti, M ^{[1
]}

Saarnisaari, H ^{[1
]}

Koivu, S ^{[1
]}

机构：

[1] Univ Oulu, Ctr Wireless Commun, FIN-90014 Oulu, Finland

来源：

IEEE SIGNAL PROCESSING LETTERS | 2005年 / 12卷 / 11期

关键词：

constant false-alarm rate (CFAR); detection threshold; quantization; radiometer; signal detection;

D O I：

10.1109/LSP.2005.855521

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We analyze the impact of a uniform quantizer on the false-alarm probability of a total power radiometer. Different possibilities to set the detection threshold are discussed. The main emphasis is on methods that use the estimated noise level. In particular, we analyze the cell-averaging (CA) constant false-alarm rate threshold setting strategy. The numerical results show that the CA strategy offers the desired false-alarm probability.

引用

页码：796 / 799

页数：4

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