论文部分内容阅读
不同地区接收BPL地波和天波信号有着不同的结果对于噪声场强在50dB左右,BPL地波场强低于30dB,一跳天波场强约50dB的地方——广州监测站正处于上述情况,可以借助一跳天波识别地波的周期。具体方法是先跟踪在一跳天波第三周末,再把跟踪点前移三周(周数根据天、地波传播时延差决定)[注一]就可以跟踪到BPL地波第三周.这种方法可以作为一些离发射台较远的台站进行周期识别的一种方法。
Different regions receive BPL groundwave and skywave signals with different results. For a noise field strength of about 50dB, BPL groundwave field strength below 30dB, a skywave field strength of about 50dB - Guangzhou monitoring station is in the above situation, you can With a sky-wave to identify the wave period. The specific method is to track the third weekend in the sky wave, and then move the tracking point for three weeks (the number of weeks is determined by the propagation delay of the ground wave) [Note 1] The third week of the BPL can be traced. This method can be used as a method of periodic identification of stations located further away from the launch pad.