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首页> 外文期刊>Instrumentation and Measurement, IEEE Transactions on >Detection of Narrow-Band Signals Through the FFT and Polyphase FFT Filter Banks: Noncoherent Versus Coherent Integration
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Detection of Narrow-Band Signals Through the FFT and Polyphase FFT Filter Banks: Noncoherent Versus Coherent Integration

机译：通过FFT和多相FFT滤波器组检测窄带信号：非相干对相干积分

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摘要

Formulas are derived for computing performance gain that is achieved by coherent integration over noncoherent integration in detection schemes based on polyphase fast Fourier transform (FFT) and FFT filter banks. Numerical computation of the processing gain is then discussed. The crucial role that is played by window energy normalization in detection performance comparisons, which has never been recognized in the literature, is emphasized and analyzed. The numerical results provided for typical implementation parameters are useful for making appropriate tradeoffs in the design of solutions for practical signal detection problems.
机译：得出用于计算性能增益的公式，该公式是在基于多相快速傅里叶变换（FFT）和FFT滤波器组的检测方案中通过相干积分而非非相干积分实现的。然后讨论了处理增益的数值计算。强调和分析了窗能量归一化在检测性能比较中所起的关键作用，这在文献中从未得到认可。为典型的实现参数提供的数值结果对于在设计实际信号检测问题的解决方案时做出适当的权衡非常有用。

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