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首页> 外文期刊>Measurement Science & Technology >Validation of Joint European Torus polarimetric measurements with residual analysis
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Validation of Joint European Torus polarimetric measurements with residual analysis

机译:残差分析验证联合欧洲Torus极化测量

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摘要

Recently a complete model of JET polarimeter calibration has been developed. A specific propagation code has also been written to simulate the measurements of both the vertical and horizontal chords during plasma operation. In this paper, these two models have been checked with residual analysis methods valid for nonlinear systems. The differences between the estimates of the codes and the experimental measurements, during both calibration and plasma operation, have been calculated and analysed statistically. The distribution of the residuals confirms the quality of the model developed to interpret the calibration of the diagnostic. On the other hand, during plasma operation, the residuals do not present a Gaussian distribution and there is clear evidence of serial correlation at subsequent times. Correlation analysis with the inputs indicates that problems with the magnetic field topology, provided by an independent equilibrium code, are the source of the inadequacies in the results of the propagation model.
机译:最近,已经开发了JET旋光仪校准的完整模型。还编写了一个特定的传播代码来模拟等离子操作期间垂直和水平弦的测量。在本文中,已经使用对非线性系统有效的残差分析方法检查了这两个模型。在校准和等离子体操作过程中,已估算出代码估算值与实验测量值之间的差异,并进行了统计分析。残差的分布确认了为解释诊断的校准而开发的模型的质量。另一方面,在等离子操作期间,残差不呈现高斯分布,并且在随后的时间有明显的序列相关性证据。与输入的相关性分析表明,由独立的平衡代码提供的磁场拓扑问题是传播模型结果不足的根源。

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