Observation of coherent precursors in pulsed mode-stirred reverberation fields

被引：11

作者：

Arnaut, L. R. ^{[1
]}

Knight, D. A. ^{[1
]}

机构：

[1] Natl Phys Lab, Div Enabling Metrol, Teddington TW11 0LW, Middx, England

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.98.053903

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on measured statistics of pulsed radio-frequency fields inside a dynamic (mode-stirred) reverberant cavity. Unlike for time-harmonic excitation, the early transient received power during the buildup of energy is quasiperiodic with respect to the stir angle and exhibits unusually long correlations. These correlations decay at the same exponential rate as the increase of energy. By contrast, the probability distribution of the power reaches its asymptotic form in a more rapid but oscillatory manner.

引用

页数：4

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