TY - GEN
T1 - Research and simulation of guidance law based on GPS/INS combinaion
AU - Fan, Shi Peng
AU - Lin, Defu
AU - Li, Junzhi
AU - Lv, Yingjie
PY - 2012
Y1 - 2012
N2 - In this work, the proportional navigation (PN) law with gravity compensated based on GPS/INS combination is formulated at first, and a guidance law is designed via Variable Structure Control (VSC). Secondly, as the primary reason of chattering in the traditional VSC, the input Relaycharacteristic is improved in order to reduce chattering at the end time, and three continuous functions are given. To evaluate the performance of the two guidance solutions, a numerical simulation of the missile's guidance with a twoorder dynamics of the autopilot is used. The results show that, guidance law based on VSC is faster than PN law. Moreover, the improvement has a great effect on reducing chattering at the end time, and the third method addressed by this work has a better result.
AB - In this work, the proportional navigation (PN) law with gravity compensated based on GPS/INS combination is formulated at first, and a guidance law is designed via Variable Structure Control (VSC). Secondly, as the primary reason of chattering in the traditional VSC, the input Relaycharacteristic is improved in order to reduce chattering at the end time, and three continuous functions are given. To evaluate the performance of the two guidance solutions, a numerical simulation of the missile's guidance with a twoorder dynamics of the autopilot is used. The results show that, guidance law based on VSC is faster than PN law. Moreover, the improvement has a great effect on reducing chattering at the end time, and the third method addressed by this work has a better result.
KW - GPS/INS
KW - Guidance Loop
KW - Reduce chattering;
KW - Variable Structure Control
UR - http://www.scopus.com/inward/record.url?scp=84877762895&partnerID=8YFLogxK
U2 - 10.1049/cp.2012.1308
DO - 10.1049/cp.2012.1308
M3 - Conference contribution
AN - SCOPUS:84877762895
SN - 9781849195379
T3 - IET Conference Publications
SP - 1678
EP - 1681
BT - International Conference on Automatic Control and Artificial Intelligence, ACAI 2012
T2 - International Conference on Automatic Control and Artificial Intelligence, ACAI 2012
Y2 - 3 March 2012 through 5 March 2012
ER -
