分析了瞬时频率的物理概念，指出在红外扫描系统中，用瞬时频率来计算系统带宽是值得讨论的。
The physical meaning of instantaneous frequency is analyzed. Its application in the evaluation of the bandwidth of IR scanning systems is discussed.
分析了瞬时频率的物理概念，指出在红外扫描系统中，用瞬时频率来计算系统带宽是值得讨论的。
The physical meaning of instantaneous frequency is analyzed. Its application in the evaluation of the bandwidth of IR scanning systems is discussed.
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