Analysis on the Key Application Technical Characteristics of the Airborne Terrain Matching System

JIA Xinqiang; GAO Guangen; ZHANG Yachong

doi:10.15892/j.cnki.djzdxb.2022.06.013

Journal of Projectiles, Rockets, Missiles and Guidance >

2022 , Vol. 42 >Issue 6: 85 - 93

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2022.06.013

Analysis on the Key Application Technical Characteristics of the Airborne Terrain Matching System

JIA Xinqiang ¹ ,
GAO Guangen ² ,
ZHANG Yachong ²

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¹ Naval Equipment Department,Xi’an 710065,China
² Xi’an Flight Automatic Control Research Institute,Xi’an 710065,China

Received date: 2022-07-27

Online published: 2025-02-25

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Abstract

As an important means of modern aviation navigation, the airborne terrain matching system comprehensively processes the airborne altitude sensor, inertial navigation, digital terrain elevation data and matching algorithm during its actual operation to obtain high-precision and reliable positioning. In this paper, the composition and main functions of the airborne terrain matching system are discussed, the typical application modes of key technologies such as terrain feature sensing equipment, digital terrain elevation database, main navigation equipment and terrain matching algorithm are analyzed, and the reliability of capture mode and accuracy of tracking mode are taken as the key evaluation indicators of system performance, and the performance of the designed numerical terrain matching system is tested with the actual test flight data. The test results show that the mode control logic works stably in the implementation process, and there is no false positioning phenomenon. The accuracy of capture mode and tracking mode is better than 50 m.

Key words： terrain-aided navigation; terrain matching; electronic countermeasures environment; concealment; performance evaluation

Cite this article

JIA Xinqiang , GAO Guangen , ZHANG Yachong . Analysis on the Key Application Technical Characteristics of the Airborne Terrain Matching System[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2022 , 42(6) : 85 -93 . DOI: 10.15892/j.cnki.djzdxb.2022.06.013

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