frequency shift key

基本解释

About GPS receiver, the research importance is high-dynamic receiver. The key is to solve the Doppler frequency shift caused by the high-speed movement of carrier.
在GPS接收机中，目前研究的重点是高动态环境下的接收机，其关键是解决载体高速运动给GPS接收机附加的多普勒频移问题。
The key factors of the Relayed frequency shift jamming to it's quality are it's frequency shift amount and the time delay between the jamming pulse and the jammed signal.
决定转发移频脉冲干扰品质的是其移频量和与信号脉冲的相对延迟时间。
In movement state, the technology of synchronization is the key of overcoming Doppler frequency shift in the communication, and the performance of communication has influenced.
运动状态下的同步技术是通信领域克服多普勒频移的关键技术，直接影响通信系统的性能。