The present paper studies the application schemes of aerodynamic coefficient identification based on the differential evolution (DE) algorithm from free flight data. Two identification schemes utilizing the DE algorithm are proposed, including the whole discrete point (WDP) scheme and the differential interval linear (DIL) scheme. Several comparative tests are conducted to study the performances of the two schemes by using the noisy simulated flight data and the measured radar data. The results show satisfactory performance in estimating the aerodynamic coefficients for the two schemes. The WDP scheme provides more accurate and robust coefficients estimates in exchange of more than two times greater computational effort compared with the DIL scheme.

中文翻译：

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基于差分进化算法的气动系数辨识应用方案研究

本文研究了基于自由飞行数据差分进化算法的空气动力学系数辨识应用方案。提出了两种利用DE算法的识别方案，包括整体离散点（WDP）方案和差分间隔线性（DIL）方案。通过使用嘈杂的模拟飞行数据和实测雷达数据，进行了几种比较测试，以研究这两种方案的性能。结果表明，在估算两种方案的空气动力学系数时，性能令人满意。与DIL方案相比，WDP方案提供了更准确，更可靠的系数估计，但所需的计算量却是原来的两倍。