本文给出了一种在亚、跨、超音速区域从飞行试验数据识别迎角测量值上洗修正系数(Kα)的方法,该方法在歼×飞机飞行试验中进行了验证。文中介绍该方法的基本原理,试飞结果及误差分析。试飞表明,该方法是可行的,并且计算方法和所需数据与识别纵向气动导数时相同,故试飞工作可在一起进行,从而缩短飞行试验周期和降低飞行试验的费用。 In this paper, we present a method to wash the positive coefficient (Kα) from the angle of attack test data in the sub-span, supersonic region and flight test data. The method is validated in the J-flight test. The article describes the basic principles of the method, flight test results and error analysis. Flight tests show that this method is feasible, and that the calculation method and required data are the same as for the longitudinal aerodynamic derivatives, so that the flight test can be carried out together to shorten the flight test period and reduce the flight test cost.