Comparing Interval Management Control Laws for Steady-State Errors and String Stability

Weitz, Lesley A ; Swieringa, Kurt A

关键词: CONTROL THEORY;    AVIONICS;    AIRCRAFT APPROACH SPACING;    SPEED CONTROL;    STEADY STATE;    AIRCRAFT STABILITY;    AIR TRAFFIC CONTROL;    SELECTION;    ERRORS;    STABILITY;   

RP-ID  :  NF1676L-27247

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Interval Management (IM) is a future airborne spacing concept that leverages avionics to provide speed guidance to an aircraft to achieve and maintain a specified spacing interval from another aircraft. The design of a speed control law to achieve the spacing goal is a key aspect in the research and development of the IM concept. In this paper, two control laws that are used in much of the contemporary IM research are analyzed and compared to characterize steady-state errors and string stability. Numerical results are used to illustrate how the choice of control laws gains impacts the size of steady-state errors and string performance and the potential trade-offs between those performance characteristics.