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MODAL ANALYSIS OF NOISE IN SIGNAL-PROCESSING-IN-THE-ELEMENT DETECTORS

机译:信号处理探测器中的噪声模态分析

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Detector noise limits the performance of signal-processing-in-the-element detectors. For detectors to be optimized, an expression for the signal and noise must be found. The results of the eigenmode solution to the charge transport problem are used to derive the power spectral density of the noise in analytic form. This result is then coordinated with a similarly obtained modulation transfer function to yield a frequency-dependent signal-to-noise ratio (SNR). The SNR is used to reveal performance trends over several ranges of detector parameters. The most important result is that the contact boundary velocity strongly controls the SNR. The optimum SNR condition occurs when the contacts are not perfectly ohmic but exhibit a partially blocking behavior. (C) 1996 Optical Society of America [References: 12]
机译:检测器噪声限制了信号处理中检测器的性能。为了优化检测器,必须找到信号和噪声的表达式。电荷传输问题的本征模解的结果用于以解析形式导出噪声的功率谱密度。然后,将该结果与类似获得的调制传递函数进行协调,以产生与频率相关的信噪比(SNR)。 SNR用于揭示检测器参数几个范围内的性能趋势。最重要的结果是接触边界速度强烈控制SNR。最佳SNR条件是在触点不是完全欧姆但表现出部分阻塞行为时发生的。 (C)1996年美国眼镜学会[参考文献:12]

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