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中文摘要：
飞机是一个非线性且各通道间存在耦合的系统。在辨识领域用得较为广泛的单通道时域和频率辨识都不能得到满意的用于实践的模型,而CIFER（Comprehensive Identification From Frequency Response）采用先进的线性调频Z变换（Chirp Z-Transform）、多输入处理以及组合窗技术,能有效滤除各种干扰的影响、克服单通道辨识中忽略通道之间作用的缺陷,最终得到满意的能用于操作性能提升、飞机模拟仿真以及控制系统设计的飞机系统多输入多输出线性模型。此外,通过该线性模型,可以借助物理结构得到相应的飞机物理参数。
英文摘要：
Aircraft system is a nonlinear and channel-coupled system.The widely used SISO time and frequency identification methods can not obtain good models for application.Yet Comprehensive Identification From Frequency Response（CIFER） can get excellent model by taking advantage of Chirp Z-Transform,multi-input conditioning,and composite window techniques,thus the influences of various interferences can be filtrated and the defect of SISO identification can be overcome.The CIEFER can be used for obtaining a linear,multi-input/multi-output（MIMO）model for aircraft system,which can be used in aircraft simulation,quality handling,and flight-control studies.In addition,the physical parameters of the aircraft can be worked out by using the knowledge of physical structures.
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