电离层加热实验中非常波的异常衰减
Anomalous attenuation of extraordinary waves in the ionosphere heating experiments
摘要：
在电离层F区由高频引起的人工随机不规则结构对无线电波的多次散射可能会导致寻常波和非常波的显著衰减，以及由于寻常波向等离子体波的非线性转换而导致的寻常波的常见异常吸收。为了证明这种效应的存在和强度，在1999年9月6日，7日和9日的苏拉加热设施的实验活动期间，进行了强大的泵浦波和弱探测波的非常偏振的衰减的直接测量。非常波的衰减幅度比自然不规则性引起的背景衰减高1-10 dB。本文根据特征尺度长度为0.1-1 km的人工随机不规则体的多次散射理论对此作了解释。本文还介绍了由实测的非常波衰减确定不规则体谱参数的简单方法，并得出了人工不规则体形成的一些结论。
英文摘要：
Multiple scattering of radio waves by artificial random irregularities HF-induced in the ionosphere F region may cause significant attenuation of both ordinary and extraordinary waves together with common anomalous absorption of ordinary waves due to their non-linear conversion into plasma waves. To demonstrate existence and strength of this effect, direct measurements of attenuation of both powerful pump wave and weak probing waves of extraordinary polarization have been carried out during an experimental campaign on September 6, 7 and 9, 1999 at the Sura heating facility. The attenuation magnitude of extraordinary waves reaches of 1-10 dB over a background attenuation caused by natural irregularities. It is interpreted in the paper on the base of the theory of multiple scattering from the artificial random irregularities with characteristic scale lengths of 0.1-1 km. Simple procedure for determining of irregularity spectrum parameters from the measured attenuation of extraordinary waves has been implemented and some conclusions about the artificial irregularity formation have been obtained.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
