...( acousto-optic modulator )产生两对具有同调性(coherence)且角度相互正交的线偏极化光,两个线偏光间具有拍频(beat frequency)作为外差干涉讯号来源,由于以..
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文章详细信息 关键词: 光速;;调制;;差频;;数码 [gap=423]Keywords: light speed;modulate;beat frequency;digital
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beat frequency receiver 拍频接收机
beat frequency amplifier [电子] 拍频放大器
beat frequency detector 拍频检波器 ; 差频检波器
beat frequency meter 差频频率计
ciliary beat frequency 测定纤毛摇动频率
beat frequency electrotherapy unit 差频电疗机
beat-frequency 拍频 ; 查频 ; 差频
·2,447,543篇论文数据,部分数据来源于NoteExpress
The influence of time length and beat frequency on radar range is discussed.
讨论了信号时长和差拍频率对雷达作用距离的影响;
A tunable GaAlAs diode laser is used as a chirp signal source, the distance is detected by calculating the beat frequency.
由可调谐半导体激光器产生一个啁啾信号,通过测量拍信号频率计算距离。
Brillouin enhanced four wave mixing, whose interference beat frequency drives an acoustic field, can improve the SBS phase conjugation fidelity.
采用四波混频加强SBS的方法,其相干拍频驱动声子场,能提高SBS相位共轭保真度。
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