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理论上证明了:一个高斯光斑或圆光斑圆锥扫描一个扇形调制盘,输出的是一个调频波。在信噪比最大的条件下,计算了最优调制指数,从而可以估计最佳的齿数、最优的带宽。
It is theoretically proved that a Gaussian spot or circular spot cone scans a sector modulation disk and outputs a frequency modulated wave. Under the condition of the largest signal-to-noise ratio, the optimal modulation index is calculated, so that the optimal number of teeth and the optimal bandwidth can be estimated.