Limit capability and consistency of digital image injection test for IR imaging seeker

LI Hui; WU Jun-hui; CHEN Qian-rong; XU Zhen-ling; WANG Min; GUO Zheng-hong

doi:10.3788/OPE.20162404.0913

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Limit capability and consistency of digital image injection test for IR imaging seeker

更新时间：2020-08-13

- Limit capability and consistency of digital image injection test for IR imaging seeker
- Optics and Precision Engineering Vol. 24, Issue 4, Pages: 913-921(2016)
- 作者机构：
  
  中国洛阳电子装备试验中心,河南洛阳,471003
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20162404.0913
  CLC： TN977;TN216
- Received：20 November 2015，
  
  Revised：12 January 2016，
  
  Published：25 April 2016
- 稿件说明：
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李慧, 吴军辉, 陈前荣等. 红外导引头注入式闭环试验的边界能力及一致性[J]. 光学精密工程, 2016,24(4): 913-921

LI Hui, WU Jun-hui, CHEN Qian-rong etc. Limit capability and consistency of digital image injection test for IR imaging seeker[J]. Editorial Office of Optics and Precision Engineering, 2016,24(4): 913-921
李慧, 吴军辉, 陈前荣等. 红外导引头注入式闭环试验的边界能力及一致性[J]. 光学精密工程, 2016,24(4): 913-921 DOI： 10.3788/OPE.20162404.0913.

LI Hui, WU Jun-hui, CHEN Qian-rong etc. Limit capability and consistency of digital image injection test for IR imaging seeker[J]. Editorial Office of Optics and Precision Engineering, 2016,24(4): 913-921 DOI： 10.3788/OPE.20162404.0913.

摘要

提出一种采用数字图像注入式方法进行红外成像导引头闭环仿真和性能测试的方法。由于注入式仿真试验时红外导引头的红外探测分系统被图像仿真和图像注入设备取代不参与工作

故导引头稳定跟踪回路性能会发生变化。为使注入式闭环仿真试验结果准确可信

建立了评价红外成像导引头仿真试验和实际工作两种情况下稳定跟踪回路性能一致性的指标体系

给出了一致性评估方法。最后

建立了红外成像导引头稳定跟踪回路仿真模型

开发了红外导引头数字图像注入式闭环半实物仿真试验系统并在一导引头实物平台上开展了实验。结合建模仿真与实验验证手段得到了红外导引头数字图像注入式闭环半实物仿真试验系统的边界能力。结果表明:在失调角延时小于73 ms

失调角误差小于0.18°

目标运动最大角速度小于1(°)/Hz时

导引头在注入式仿真试验和实际工作两种情况下的稳定跟踪性能可保持一致。实验结果为红外成像制导武器快速形成图像注入式闭环试验鉴定能力奠定了基础。

Abstract

A new method to simulate and test the closed-loop performance of an IR imaging seeker by using digital image injection was proposed. The detector of IR imaging seeker was replaced by image emulation and injection devices in the simulation condition

so the performance of tracking servo loop was likely to be different from that under the actual condition. To allow the results of the digital image injection to be close the simulation experiment

an evaluation index system and an evaluation method for the consistency capability of the tracking servo loop under the simulation test and an actual condition were established to improving the precision and reliability of simulation test result. Then

the accurate tracking servo system model of an actual IR imaging seeker was setup

and a hardware-in-the-loop simulation test system of digital image injection system was established. The experiments was performed on a seeker platform and the capability limits of the hardware-in-the-loop simulation test of digital image injection system was found by adopting the simulation and modeling combined with the experimental test method. The result shows that the tracking performance of the seeker can be held in consistency under the above two conditions when the maximum random maladjustment angle error is 0.18°

the maladjustment angle delay and the maximum angle velocity of the target are smaller than 73 ms and 1(°)/Hz

respectively. These results provide a foundation for forming the capability of the digital image injection simulation test for infrared imaging guidance weapons.

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references

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