回答式欺骗干扰和高重频堵塞干扰是激光有源干扰的两种主要方法。文中设计了一种首/末脉冲制导可切换的激光四象限制导电路,用以验证这两种干扰方法的有效性和末脉冲制导方法的抗干扰性能。该四象限制导电路的制导方式、时间波门和制导编码等参数在线可调,电路动态范围138.47dB,波门宽度为典型20µs时最大采样保持误差0.24%。

Responder deception jamming and high repetition rate jamming are two main methods of laser active jamming. In his paper, a circuit was designed, whose work mode can be either first pulse guidance or last pulse guidance. The circuit can verify the effectivity of this two methods and the anti-jamming effectivity of last pulse guidance. Guidance mode, width of time gate and guidance encode can be set on-line, dynamic range is 138.47dB and the maximal sampling and hold error is 0.24% when the gate time is typical value 20µs.