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研究用于评定飞机小幅值姿态和航迹精确控制的纵向飞行品质准则，提出以线性化小扰动飞机方程和飞控系统为评定对象，用等效系统拟配法、系统稳定裕度、ＮｅａｌＳｍｉｔｈ准则、姿态带宽准则、ＧＭ／ＰＭ准则和回落准则对整个飞机进行品质评价．综合分析这些准则的相互关系后，认为分别用上述６种方法评价飞机的飞行品质，可以得出该飞机的综合性能指标，而不至于得出一个片面的结论．
In this paper, the longitudinal flight quality criteria for aircraft small amplitude attitude and precise track control are studied. The linearized small disturbance aircraft equations and flight control system are evaluated. The equivalent system fitting method, system stability margin, Neal Smith criterion, attitude bandwidth criterion, GM / PM criterion and fallback criterion to evaluate the quality of the whole aircraft. After comprehensively analyzing the interrelationship of these criteria, it is considered that evaluating the aircraft flight quality by the above six methods respectively can obtain the comprehensive performance index of the aircraft without drawing a one-sided conclusion.