WHY THE USE OF SUCH EXTREM LOW FREQUENCIES FOR COMMUNICATION WITH SUBMARINES? 为什么要将极低频无线电用于潜艇通信?
Miscellaneous FSK-based stations are found here for direct communications with submarines and naval forces. 混杂基于FSK的驻地被发现这里为与潜水艇和海军的直接通信。
A novel adaptive line enhancer(ALE) with high frequency resolution was presented,which suitable for underwater acoustic communication with MFSK or frequency hopping(FH) modulation. 根据水声MFSK或跳频通信中频率估计特点,提出了一种基于自适应线谱增强器(ALE)理论的实用高分辨频率估计新方法。
I am in communication with him on this subject. 关于这问题，我正和他交换意见。
The heavy snow has prevented all communication with the highlands. 大雪阻断了与高地之间的一切联系。