激光灯标校准瞄准精度美国宇航公司已用激光灯标校准国防支援计划（ＤＳＰ）预警卫星的瞄准精度，其定位误差比以前减小三分之一。ＤＳＰ卫星可以探测移动发射架上点火的弹道导弹。轨道内校准精度比飞机高２倍，这就容易寻找和攻击发射场。ＤＳＰ所用的同步卫星由ＴＲＷ公... Laser Beacon Calibration Aiming Accuracy NASA has calibrated the targeting accuracy of early warning satellites using laser beacons to reduce its positioning error by one-third. DSP satellites can detect ballistic missiles fired on mobile launchers. In-orbit calibration accuracy 2 times higher than the aircraft, which is easy to find and attack launch site. Synchronous satellites used by DSP by TRW ...