All the conventional vibrators use the sweep signal of which the instantaneous frequency shows linear change with time.
常规可控震源都是采用瞬时频率随时间线性变化的扫描信号。
Start frequency, stop frequency and sweep time of the signal synthesized by the method can be preset freely and controlled accurately.
被合成的频率扫描信号的起始频率、终止频率和扫描时间可根据需要随意设定，并且可以实现对三者的精确控制。
Start frequency, stop frequency and sweep time of the signal synthesized by the method can be preset freely and controlled accurately.
被合成的频率扫描信号的起始频率、终止频率和扫描时间可根据需要随意设定，并且可以实现对三者的精确控制。
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