XX-5A试验期间GPS观测到的电离层有源变态效应的实验结果分析

The Result Analyses of the Artificial Modification in the Ionosphere Observed with GPS Receivers During XX-5A Experiments

利用GPS双频接收机，能测量电离层总电子含量（TEC）及其变化。在XX-5A试验期间，GPS接收机监测到了火箭排出的"废气"所造成的电离层有源变态效应。测量结果表明，火箭废气形成了电离层"空洞"。而"空洞"的形成直接影响到弹道的电离层折射修正方法，进一步证明了电离层实时测的必要性。

The ionospheric total electron constent and its variation is observed by using GPS double-frequency receiver. During XX-5A experiments, the active modification of the ionosphere resulted by rocket exhaust was monitored with GPS receiver. The observation results indicated that the rocket exhaust produced an ionospheric hole. The ionospheric hole directly influences on the method of the ionospheric refractive correction for rocket orbit, and farther show that the real-time ionospheric measurement is necessary.