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Volume 31 Issue 9
Dec.  2010
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Cui Wei, Zhu Xin-guo, Wu Si-liang. Study on Double Threshold Detection Based on Constraint Judgment[J]. Journal of Electronics & Information Technology, 2009, 31(9): 2074-2078. doi: 10.3724/SP.J.1146.2009.00080
Citation: Cui Wei, Zhu Xin-guo, Wu Si-liang. Study on Double Threshold Detection Based on Constraint Judgment[J]. Journal of Electronics & Information Technology, 2009, 31(9): 2074-2078. doi: 10.3724/SP.J.1146.2009.00080

Study on Double Threshold Detection Based on Constraint Judgment

doi: 10.3724/SP.J.1146.2009.00080
  • Received Date: 2009-01-16
  • Rev Recd Date: 2009-06-29
  • Publish Date: 2009-09-19
  • Double threshold detection based on constraint judgment is proposed for weak signal detection. The improvement effect on Probability of False Alarm (PFA) and influence on Probability of Detection (PD) are quantitatively analyzed with constraint judgment. The mathematical models of total PFA and PD of double threshold detection based on constraint judgment are built, and the validity of the mathematical models is verified by simulation tests. The simulation results show that the signal-to-noise ratio under scheduled PFA and PD can be decreased by introducing constraint judgment to double threshold detection.
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