frequency shift key

基本解釋

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接收機(jī)中，目前研究的重點(diǎn)是高動(dòng)態(tài)環(huán)境下的接收機(jī)，其關(guān)鍵是解決載躰高速運(yùn)動(dòng)給GPS接收機(jī)附加的多普勒頻移問(wèn)題。
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.
決定轉(zhuǎn)發(fā)移頻脈沖乾擾品質(zhì)的是其移頻量和與信號(hào)脈沖的相對(duì)延遲時(shí)間。
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.
運(yùn)動(dòng)狀態(tài)下的同步技術(shù)是通信領(lǐng)域?qū)》嗥绽疹l移的關(guān)鍵技術(shù)，直接影響通信系統(tǒng)的性能。