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Generalized source-conditions and uncertainty bounds for deconvolution problems

机译:概括的源 - 条件和解压缩问题的不确定性界限

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Many problems in time-dependent metrology can be phrased mathematically as a deconvolution problem. In such a problem, measured data is modeled as the convolution of a known system response function with an unknown source signal. The goal of deconvolution is to estimate the unknown source signal given knowledge about the system response function. A well-studied method for calculating this estimate is Tikhonov regularized deconvolution which attempts to balance the average difference between the estimated solution and true source signal with the variance in the estimated solution. In this article we study this so-called bias-variance tradeoff in the context of estimating a source measured by a high speed oscilloscope. By assuming we have bounds on the true source's Fourier coefficients and a structural model for the uncertainties in the system response function, we derive pointwise-in-time confidence intervals on the true signal based on the estimated signal. We demonstrate the new technique with simulations relevant to the high speed measurement context.
机译:时间依赖性计量中的许多问题可以在数学上用作为解构问题。在这样的问题中,测量数据被建模为具有未知源信号的已知系统响应函数的卷积。去卷积的目标是估计未知的源信号给出了关于系统响应函数的知识。一种研究的计算方法是计算该估计的方法是Tikhonov正规的解卷积,其试图平衡估计的解决方案和真实源信号之间的平均差异,并在估计的解决方案中的方差。在本文中,我们在估计由高速示波器测量的源的上下文中研究了该所谓的偏差差异。假设我们在真正的源源傅立叶系数和系统响应功能中的不确定性的结构模型中,我们基于估计信号导出真实信号的点对时间置信区间。我们展示了与高速测量背景相关的模拟的新技术。

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