frequency shift

基本解釋

The basic principle of Frequency Shift Keying is at least a century old.
基本原則的頻移鍵控是至少一個世紀(jì)老人。
It depends on many factors whether the algorithms are efficient, such as sampling rate, receiver noise model, Doppler frequency shift etc.
去卷積方法能否在系統(tǒng)中應(yīng)用需視系統(tǒng)的具體情況而定，如采樣率、噪聲模型及多普勒頻移等。
LEO satellite communication system has the properties of larger power dynamic range, larger and faster changed doppler frequency shift and rapid fluctuation compared to ordinary communication system.
相對于一般的通信系統(tǒng)而言，低軌衛(wèi)星通信系統(tǒng)具有信號動態(tài)范圍大，多普勒頻移大且變化速度快，信道起伏劇烈等特點。

And since a moving object causes a tiny change (known as a Doppler shift) in the frequency of the reflected signal, Silent Sentry can also calculate how fast it is moving.
ECONOMIST: Remote sensing
In 1995, a sudden shift in the distribution of North Atlantic temperatures increased hurricane frequency.
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