彈道中段進動目標高精度平動補償方法
doi: 10.11999/JEIT151231 cstr: 32379.14.JEIT151231
基金項目:
國家自然科學基金(61501995, 61372166)
Translation Motion High Accuracy Compensation for Procession Ballistic Target in Midcourse
Funds:
The National Natural Science Foundation of China (61501995, 61372166)
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摘要: 該文針對中段進動目標平動補償問題，分析了中段目標平動及進動的運動特性，指出中段目標進動具有軸對稱性，并利用這一特性提出一種基于對稱共軛相乘的進動目標平動參數(shù)估計方法。該方法通過對稱數(shù)據(jù)的共軛相乘處理消除微動的影響，僅保留平動參數(shù)信息，然后根據(jù)共軛相乘后數(shù)據(jù)傅里葉變換的峰值信息估計平動參數(shù)，并基于所估計平動參數(shù)實現(xiàn)了中段進動目標平動的高精度補償。仿真結果驗證了所提算法的有效性。Abstract: To compensate the translation motion of precession ballistic targets, the characters of translation and precession are analyzed and it is found out that the precession has the center symmetry character. Using this character, a method based on conjugate multiplication of center symmetry data is proposed to estimate the translation motion of precession ballistic target. The precession motion is canceled out due to the conjugate multiplication and the translation motion parameters can be estimated by the spectral peak position of the conjugate multiplied signal. Therefore, the translation motion can be compensated based on the estimated translation motion parameters. Simulation results verify the validity of the proposed algorithm.
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Key words:
- Ballistic target /
- Translation compensation /
- Center symmetry /
- Conjugate multiplication
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