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本文叙述了ITD法、随机减量——ITD法及逐步扩阶双递推等时域参数识别法和有关的频域参数识别法在某型歼击机平尾上的应用。给出了多种方法的识别结果,评价了各个方法的优缺点,并介绍了时域参数识别的有关试验技术。
This paper describes the application of the ITD method, the random decrement - ITD method and the stepwise extended double recursion time domain parameter identification method and the related frequency domain parameter identification method on the flat tail of a type of fighter plane. The recognition results of many methods are given, the advantages and disadvantages of each method are evaluated, and the related experimental techniques of time domain parameter identification are introduced.