本文导出哨声波有质动力的一个公式。
A formula of ponderomotive force of whistler waves has been derived in this paper.
结果表明，哨声波能被无碰撞电流片直接激发。
The results show that whistler waves can be directly excited by the collisionless current sheet.
赤道异常和电离层显著地影响哨声波的到达纬度；
The equatorial anomaly and the ionosphere greatly affect the arrival latitude of whistler wave at middle and low latitudes.
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