为什么拍频信号的频谱看不见?
求助,为什么看不见拍频信号的频谱🆘 #=MQE 激光器扫描区间:1545nm-1555nm r7I,%}k 激光器扫描速度:50hz/s 也就是说扫描速度为500nm/s M~G1ZB 延时光纤:1m rLzYkZ 采集卡速度:2M E9Q?@' h 采样点数:40000 :EUV#5V. I)-u)P?2x
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