象限探测器放大组件带宽设计方法研究

为了提高激光导引头探测灵敏度，采用数值仿真的方式，拟合出了象限探测器放大组件带宽与激光导引头探测灵敏度的关系曲线，并定量分析了导引照射激光的脉冲宽度对象限探测器放大组件带宽设计的影响。提出象限探测器放大组件带宽设计方法，以某型激光导引头为例，对该方法的有效性进行了实验验证。结果表明，象限探测器放大组件带宽设计方法可有效降低激光导引头最小可探测功率，使用该方法对激光导引头象限探测器放大组件进行优化设计后，激光导引头最小可探测功率较原设计下降约60%，有效地提高了激光导引头探测灵敏度。该研究为激光导引头光电探测系统设计提供了参考。

Study on bandwidth design method of quadrant detector amplification module

In order to improve the detection sensitivity of the laser seeker, the relationship between the bandwidth of the quadrant detector amplification module and the detection sensitivity of the laser seeker was fitted by numerical simulation. The influence of the pulse width of the guided laser irradiation on the bandwidth design of the quadrant detector amplification module was quantitatively analyzed. The bandwidth design method of quadrant detector amplifier was proposed, and the effectiveness of the method was verified by the exam with a laser seeker. The results show that the bandwidth design method of quadrant detector amplifier can effectively reduce the minimum detectable power of laser seeker. After the optimization design of the laser seeker quadrant detector amplifier, the minimum detectable power of the laser seeker can be reduced by about 60% compared with the original design, and the detection sensitivity of the laser seeker can be effectively improved. This study provides a reference for the design of photoelectric detection system of laser seeker.