天馈系统的标定可利用气球放飞的定标球,接收机的标定可利用标准信号源。
The calibration of antenna system can be carried out using a calibration hung under a balloon, and the calibration of the receiver can be carried out using a standard signal generator.
天馈系统的标定可利用气球放飞的定标球,接收机的标定可利用标准信号源。
The calibration of antenna system can be carried out using a calibration hung under a balloon, and the calibration of the receiver can be carried out using a standard signal generator.
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