干扰和噪声中信号失配时的多通道信号检测
Multichannel signal detection in interference and noise when signal mismatch happens
摘要：
本文研究了当信号失配时，在干扰和噪声中检测多路信号的问题。我们首先提出了两个选择性检测器，因为它们的强选择性在某些情况下是优选的。然而，如果需要鲁棒检测器，则这两个检测器将不是合适的候选者。为了克服这个缺点，我们设计了一个可调检测器，这是参数化的非负比例因子，称为可调参数。通过调节可调参数，该检测器可以平滑地改变其抑制或鲁棒检测失配信号的能力。此外，一个选择性检测器和具有适当的可调参数的可调检测器可以提供几乎相同的检测性能，在没有信号失配的现有检测器。我们得到的检测概率（PD）和虚警概率（PFAs）的三个建议的检测器，这是通过蒙特卡罗模拟验证的解析表达式。
英文摘要：
In this paper, we consider the problem of detecting a multichannel signal in interference and noise when signal mismatch happens. We first propose two selective detectors, since their strong selectivity is preferred in some situations. However, these two detectors would not be suitable candidates if a robust detector is needed. To overcome this shortcoming, we then devise a tunable detector, which is parametrized by a non-negative scaling factor, referred to as the tunable parameter. By adjusting the tunable parameter, the proposed detector can smoothly change its capability in rejecting or robustly detecting a mismatch signal. Moreover, one selective detector and the tunable detector with an appropriate tunable parameter can provide nearly the same detection performance as existing detectors in the absence of signal mismatch. We obtain analytical expressions for the probabilities of detection (PDs) and probabilities of false alarm (PFAs) of the three proposed detectors, which are verified by Monte Carlo simulations.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
