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本文通过地电台站有干扰影响的实测资料的调查研究,得出人为改变台址环境,干扰引起的ρs变化无确定的形态。其变化特征主要与干扰物在测区内所处的位置、角度,干扰物的形状、大小、介质种类以及出现干扰后稳定性的快慢等多种因素有关。对引起的干扰变化,目前还无法排除。但是通过周密调查等方法可以识别出这类干扰。在查出干扰后,一般都要观测较长时间,等干扰条件稳定后继续观测ρs的相对值。如果干扰条件不稳定或干扰时间太长,可采用改变极距的大小、移动布极位置和方位,远离、清除干扰物或搬迁台址等办法,排除干扰。
In this paper, through the investigation and study of the measured data with the influence of the interference of the earth station, it is concluded that there is no definite form of ρs change caused by artificially changing the site environment and interference. The variation characteristics are mainly related to the location, angle, shape and size of the interfering substances, the type of the medium and the stability of the disturbance after the disturbance. The interference caused by changes in the current can not be ruled out. However, such interference can be identified through careful surveys and other methods. After detecting the interference, it is generally necessary to observe for a long time. After the interference conditions are stable, the relative value of ρs should be continuously observed. If the interference conditions are unstable or the interference time is too long, the interference can be removed by changing the pole pitch, moving the pole position and orientation, removing the interference, removing the interference or relocating the site.