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Journal of Projectiles, Rockets, Missiles and Guidance >

2015 , Vol. 35 >Issue 4: 27 - 30

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2015.04.007

MISSILES AND GUIDANCE TECHNOLOGY

The Effect of Disturbance Rejection Ratio Parasitical Loop on the Guidance Loop for Radar-Seeker

  • LI Na ,
  • FENG Xing ,
  • LI Qiang ,
  • XIA Qunli
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  • 1 Key Laboratory of Space Physics, Beijing 100076, China
    2 Luoyang Institute of Electro-optical Equipment, AVIC, Henan Luoyang 471009, China
    3 School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China

Received date: 2014-09-02

  Online published: 2025-05-26

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Abstract

In order to analyzing the effect of disturbance rejection ratio on guidance loop for radar-seeker, parasitical loop model considering disturbance rejection ratio with phase lag was proposed. After the analysis of stable zone of parasitical loop with phase lag based on non-dimensional-normalization method, it is concluded that the stable zone of the feedfoward is smaller than feedback, the smallest stable range occurs between -180° and -90° phase lag but not -180°, and when the phase lag is over -90°, the stable zone is close to the case when the phase lag is -180°. These conclusions have great significance for improving stability of guidance loop in engineering applications.

Key words： seeker; disturbance rejection ratio; phase lag; parasitical loop; stability

Cite this article

LI Na , FENG Xing , LI Qiang , XIA Qunli . The Effect of Disturbance Rejection Ratio Parasitical Loop on the Guidance Loop for Radar-Seeker[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2015 , 35(4) : 27 -30 . DOI: 10.15892/j.cnki.djzdxb.2015.04.007

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