舰船电子对抗

随着激光有源干扰技术的不断发展，激光半主动制导武器攻击精度受到严重影响，编码技术和波门选通技术等是常用的、有效的抗干扰措施。为了增大激光有源干扰难度，选通波门的宽度尽可能窄，而受到激光脉冲触发控制精度、运动物体的多普勒频移等因素的影响，选通波门的宽度不可能无限小。通过分析各因素的影响，得出理想的选通波门宽度取值范围。

With the continuous development of active laser jamming technology, the attack accuracy of semi-active laser guidance weapons has been seriously affected.Coding technology and time-gate selection technology are common and effective anti-jamming measures.In order to increase the difficulty of active laser interference, the width of the time-gate should be as narrow as possible.However, the width of the time-gate cannot be infinitely small due to the influence of laser pulse trigger control accuracy, Doppler frequency shift of moving objects, etc..In this paper, the ideal width range of time-gate is obtained by analyzing the influence of various factors.