Countermeasure to Reduce the Large Scanning Blind Area of Terminal Sensitive Projectile Caused by Interval Sampling

doi:10.3969/j.issn.1000-1093.2021.07.002

Abstract

Abstract: For reducing the phenomenon of large searching blind area of terminal sensitive projectile in interval sampling mode, the reason of this phenomenon is analyzed through establishing a scanning point distribution model in interval sampling mode and example demonstrating, which is caused by the periodic repetition or small increment of discrete normalized polar angle. Based on this rule, the geometric features and forming conditions of large blind area phenomena of terminal sensitive projectile without parachute and wing and terminal sensitive projectile with parachute or wings, respectively, are studied and analyzed through theoretical derivation, and the engineering significance of this phenomenon is verified by using experimental data. The small sampling time interval/large sensing device’s field of view countermeasure and the random sampling time interval countermeasure to reduce the scanning blind area are presented based on the forming condition of this phenomenon. They were simulated and evaluated. The result shows that the countermeasure of random sampling can reduces the blind area radius effectively in the precondition of maintaining original hardware scheme, and has technical feasibility and high cost-effectiveness.

Key words: terminalsensitiveprojectile, intervalsampling, scanningblindarea, samplingstrategy

CLC Number:

TJ413⁺.7

YANG Jie, ZHANG Qi, HE Yuanji, GAO Hongquan, DENG Bin. Countermeasure to Reduce the Large Scanning Blind Area of Terminal Sensitive Projectile Caused by Interval Sampling[J]. Acta Armamentarii, 2021, 42(7): 1353-1362.

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