HMM is used to describe multi-azimuth radar profiles to obtain the distance-azimuthinformation of radar target through that radar HRRP is sensitive to radar azimuth.
The four quadrant impulse correction scheme may lead to the losing of thrust and the increasing of miss distance, since this scheme cannot measure the exact target azimuthinformation.
四象限脉冲修正方案由于没有准确的目标方位信息，会造成脉冲推力损失和脱靶量增大；
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Moreover, the azimuthinformation gotten by the method can also be used as a quantity of state in such models as Kalman filtering of positioning results and further improve its accuracy.