Differential geometric guidance method and device for controlling flight distance of variable-speed missile

• Main Authors: CHEN LEI, LIU YUANHE, JIAO YINGJIE, LIANG YANGANG, BAI XIANZONG, LI KEBO
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: CONTROLLING; PHYSICS; REGULATING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES

The invention provides a variable-speed missile flight distance control differential geometric guidance method and device, and the method comprises the steps: constructing a two-dimensional guidance model of a variable-speed missile in an arc length domain through employing a differential geometric principle according to a flight distance control problem of the variable-speed missile hitting a fixed target; predicting the residual flight distance of the variable-speed missile under the guidance of the proportional guidance law by using the analytic characteristics of the proportional guidance law; a flight path control guidance law in an offset proportion guidance form of the variable-speed missile in the arc length domain is constructed through a proportion guidance item for controlling the zero-control miss distance and an offset item for controlling the flight path error; deducing a flight path error kinetic equation under guidance of a flight path control guidance law; and an optimal error dynamics method