基于旋转调频调制盘的定位原理，研究了某型号瞄准制导仪中调制盘图案的设计特点。

Based on positioning principle of rotating frequency-modulated disk, designing characteristics of patterns for some-model guided sight instrument are studied.

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该调制盘的设计具有调制盘的转动中心与光学系统的光轴不同心，连续线性反映目标的偏离量，以及以直角坐标方式给出目标的方位信息等特点。

The design characteristics are that center of the disk is not on optical axis, deviation of target is linear and continuous and azimuth information of target is given in orthogonal coordinate system.

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而重复频率近似等于调制盘系统调制波形载频的光脉冲会干扰导引头接收到的目标信号，使导引头失去目标。

At a repetition rate nearly equal to the carrier frequency of the reticle system, the jamming source will disturb the target's signal received by the seeker, and make the seeker lose the target.

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