Instantaneous Frequency Measurement (IFM) receivers are important for modern electronic reconnaissance systems.

瞬时测频接收机是现代电子侦察系统的重要组成部分。

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For the limitation of the accuracy of IFM technology, the frequency tracking accuracy can't be examined directly.

由于现有瞬时测频技术精度的限制，无法直接对其频率跟踪精度进行检定。

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For the limitation of the accuracy of IFM technology, the frequency tracking accuracy can't be examined directly.

由于现有瞬时测频技术精度的限制，无法直接对其频率跟踪精度进行检定。

youdao