CAJ | 학술논문

平台导引头隔离度的存在不仅降低了导引头跟踪精度，其引起的隔离度寄生回路对导弹制导系统存在严重的影响。通过对平台导引头隔离度产生机理进行分析，分别建立了弹簧力矩和阻尼力矩引起的隔离度模型，在此模型的基础上利用劳斯判据分析了隔离度寄生回路稳定边界，并研究了寄生回路对制导系统有效时间常数和有效比例导引系数的影响。结果表明：为了保证隔离度寄生回路的稳定，需要限制制导控制系统主要参数的取值范围；在寄生回路的作用下制导系统有效时间常数和有效比例导引系数与原设计值发生偏差，需要重点关注。所得结论可以为导弹制导控制系统初步设计以及导引头总体指标确定提供理论参考。
평태도인두격리도적존재불부강저료도인두근종정도，기인기적격리도기생회로대도탄제도계통존재엄중적영향。통과대평태도인두격리도산생궤리진행분석，분별건립료탄황력구화조니력구인기적격리도모형，재차모형적기출상이용로사판거분석료격리도기생회로은정변계，병연구료기생회로대제도계통유효시간상수화유효비례도인계수적영향。결과표명：위료보증격리도기생회로적은정，수요한제제도공제계통주요삼수적취치범위；재기생회로적작용하제도계통유효시간상수화유효비례도인계수여원설계치발생편차，수요중점관주。소득결론가이위도탄제도공제계통초보설계이급도인두총체지표학정제공이론삼고。
The seeker disturbance rejection rate not only severely degrades seeker tracking accuracy, but also has greatly issues for the missile guidance performance. The generation mechanism of disturbance rejection rate was analyzed, and the models of disturbance rejection rate caused by spring torque and damping torque were established. Based on the Routh criterion, the stability zone of parasitical loop was obtained. The effect of the parasitical loop on effective guidance time constant and effective navigation ratio was studied. The result shows that the limits for important guidance parameters should be determined to insure the stability of parasitical loop; both the effective guidance time constant and effective navigation ratio are changed on the action of parasitical loop. The conclusion is helpful for engineers at the preliminary stage of guidance and control system design.