Infrared and Laser Engineering, Volume. 46, Issue 3, 331001(2017)
Effect of seeker disturbance rejection rate on performance of optimal guidance laws with terminal impact angle constraint
In order to study the effect of seeker disturbance rejection rate on performance of optimal guidance law, based on guidance law with terminal impact angle(GLTIA) and extended guidance law with terminal impact angle(EGLIA), the regularization of strapdown seeker disturbance rejection rate on the stability of guidance system was studied. Using adjoint method the miss distance of GLTIA and EGLIA were analyzed. The results show that the stable domain of guidance system is larger when strapdown seeker parasitic loop is negative feedback than positive feedback, the stability will reduce when the value of disturbance rejection rate gets bigger. Though EGLIA has more excellent guidance performance than GLTIA, but the influence of a parasitic loop of seeker disturbance rejection rate will be more serious, the sufferable value of seeker disturbance rejection rate for EGLIA is about 2.5%, and the GLTIA is about 3.5%. In the practical application, if the guidance law would work with advanced performance, the value of seeker disturbance rejection rate should be much stricter to reduce the effect of parasitic loop.
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Zhang Wenyuan, Lan Zhi, Xia Qunli, Qi Zaikang. Effect of seeker disturbance rejection rate on performance of optimal guidance laws with terminal impact angle constraint[J]. Infrared and Laser Engineering, 2017, 46(3): 331001
Category: 光电导航与控制
Received: Jul. 5, 2016
Accepted: Aug. 10, 2016
Published Online: Jun. 27, 2017
The Author Email: Wenyuan Zhang (zhwy_bit@163.com)