| 3. | To the principle of single - station high - frequency ground wave detection radar , simple pulse wave was chosen , but this wave has many limitations , so continuous signal wave was preferred 从雷达信号波形选择来看,对于单站高频地波超视距雷达体制,最初采用简单脉冲波形。但这种波形存在着许多缺点,最终采用连续波信号体制。 |