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目前,对于弹道遭遇段,多卜勒信号的快速变化特性;复杂目标的频谱展宽特性;目标幅度起伏,角度闪烁的附加调幅、调频杂声;作为体目标,在目标机体内因其旋转部份所产生的附加频率成份;以及上述诸因素对于导引头工作,特别是对其速度跟踪环路的影响:环路失锁或丢失,以及动态品质下降等问题还研究得较少。本文旨在对上述问题给予理论上的分析说明,并推导出工程计算公式。虽然在弹道遭遇段导弹已经失控,从制导角度来看已不存在任何影响,但是对于导引头与制导多卜勒引信有着密切关连的设计中,研究这一问题仍是十分重要的。
At present, the fast changing characteristics of Doppler signals for the trajectory encounters, spectrum broadening characteristics of complex targets, additional amplitude modulation and FM flickering with target amplitude fluctuation and flicker angle, as the target of the body, The additional frequency components generated; and the above factors on the seeker work, especially for its speed tracking loop: loop lock or loss, and dynamic quality degradation and other issues are also less studied. The purpose of this paper is to give theoretical analysis and explanation of the above problems and deduce the engineering calculation formula. Although the missiles encountered in ballistic missiles have become out of control, it has not had any impact from the guidance point of view. However, it is still very important to study this issue in the design of the seeker that is closely related to the Doppler guidance.