An active frequency drfit islangding detection method based on ARM is elaborated. By calculating, feasibility for adjusting frequency drfit accuracy by SPWM is verified.
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The invention relates to an active frequency identification label, a system and an identification method.
本发明为一种有源射频识别标签、系统及识别方法。
Crewed by civilians, Impeccable is equipped with an active low-frequency towed array with a series of modules, each housing two high-powered transducers.
“无瑕号”由平民操作，装备有主动探测的低频声纳，具备一系列的模块，每一模块配有两个大马力的传感器。
The active filter acts as an infinite impedance to the external for the fundamental frequency and as a low resistor for harmonic frequencies.
对外电路而言，在基波频率下有源滤波器被控制为无限大阻抗，在谐波频率下被控制为小电阻。
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