虚位技术对相控阵雷达导引头制导性能的影响

doi:10.3969/j.issn.1000-1093.2015.12.008

兵工学报 ›› 2015, Vol. 36 ›› Issue (12): 2262-2268.doi: 10.3969/j.issn.1000-1093.2015.12.008

虚位技术对相控阵雷达导引头制导性能的影响

鲁天宇^1,3，尹健^1,2，杜肖³，夏群利³

(1.北京理工大学机电学院，北京 100081； 2.空军装备研究院装备总体论证研究所，北京 100076；

收稿日期:2014-12-03 修回日期:2014-12-03 上线日期:2016-02-02
通讯作者: 鲁天宇 E-mail:lutianyu1987@126.com
作者简介:鲁天宇（1987—），男，博士研究生
基金资助:
上海航天科技创新基金项目（SAST201302）

Effect of Phantom-bit Technology on Guidance Performance of Phased Array Radar Seeker

LU Tian-yu¹， YIN Jian²， DU Xiao¹， XIA Qun-li¹

(1.School of Mechatronical Engineering，Beijing Institute of Technology， Beijing 100081， China；2.General Demonstration Institute， Equipment Academy of Air Force， Beijing 100076， China;3.School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China）

Received:2014-12-03 Revised:2014-12-03 Online:2016-02-02
Contact: LU Tian-yu E-mail:lutianyu1987@126.com

摘要/Abstract

摘要： 为了研究相控阵雷达导引头（PARS）采用虚位技术后对导弹制导性能的影响，根据天线单元置相原理，分析了波束指向误差斜率（BSES）产生的原因，推导了弹体扰动下含有BSES的视线角速率输出传递函数，对其幅值及相角变化规律进行了分析。同时，根据波束空间指向角度关系，建立了BSES寄生回路模型，利用劳斯判据研究了不同虚位数对寄生回路稳定边界的影响。在雷达典型噪声输入条件下，利用参数无量纲化方法研究了不同虚位数对脱靶量的影响。研究表明：PARS采用虚位技术后将产生BSES，虚位数越大，BSES越大，在相同条件下寄生回路越容易失稳，所带来的脱靶量越大，接收机噪声比目标闪烁噪声对脱靶量的影响更大。因此需要根据不同的虚位数进行不同指向区间的误差标定，降低BSES，提高导弹末制导精度。

关键词: 〖JP2〗飞行器控制、导航技术, 相控阵雷达导引头, 虚位技术, 波束指向误差斜率, 寄生回路

Abstract: To study the effect of phantom-bit technology for phased array radar seeker (PARS) on missile guidance system, the cause of boresight error slope (BSES) is discussed according to the principle of antenna element shift phase, the transfer function of line-of-sight rate containing BSES is derived under the disturbance of missile body, and the change rules of amplitude and phase angle are analyzed. A model of BSES parasitic loop is established based on the pointing angle of beam space, and the effect of phantom bit number (PBN) on the stability boundary of parasitic loop is studied with Routh criteria. Under the condition of the typical radar noise input, the dimensionless and adjoint methods are used to research the influence of PBN on miss distance. The result shows that phantom-bit technology of PARS leads to BSES；the larger the PBN is, the bigger the BSES is, the easier the parasitic loop loses its satbility, and the larger the miss distance is. The receiver noise has a greater effect on miss distance compared to target glint noise under the same condition. Therefore an error calibration method, which is used to calibrate the error among different beam angle directions according to different PBNs, needs to be studied to reduce BSES and improve the accuracy of missile terminal guidance.

Key words: control and navigation technology of aerocraft, phased array radar seeker, phantom-bit technology, boresight error slope, parasitic loop

中图分类号:

TJ765.3

鲁天宇，尹健，杜肖，夏群利. 虚位技术对相控阵雷达导引头制导性能的影响[J]. 兵工学报, 2015, 36(12): 2262-2268.

LU Tian-yu， YIN Jian， DU Xiao， XIA Qun-li. Effect of Phantom-bit Technology on Guidance Performance of Phased Array Radar Seeker[J]. Acta Armamentarii, 2015, 36(12): 2262-2268.

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虚位技术对相控阵雷达导引头制导性能的影响

Effect of Phantom-bit Technology on Guidance Performance of Phased Array Radar Seeker

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