Investigation of Sensor Dynamic Effect on Guidance System Performance and Guidance Law Modification via Time-Delay Approximation

Yousefpour, Ali

Investigation of Sensor Dynamic Effect on Guidance System Performance and Guidance Law Modification via Time-Delay Approximation

Document Type : Promotion Article

Author

Ali Yousefpour

Department of Electrical Engineering, School of Engineering, Persian Gulf University

Abstract

There have been many guidance algorithms for six-degree-of-freedom (DOF) vehicles. Any guidance algorithm may have some advantages and or drawbacks regarding to performance and stability. The proportional navigation (PN) technique is one of these guidance methods. The guidance algorithms attempt to nullify the line-of-sight (LOS) rate while the closed-loop stabilities guaranteed. Due to its inherent simplicity and ease of implementation, it has been widely applied to the guidance problems. But the PN method may perform poorly regarding the sensor delays and dynamics. Hence the sensor dynamic effect on the closed-loop performance will be investigated in this paper. Then in order to compensate the sensor dynamic effect on the guidance loop performance, it would be trying to modify the PN guidance law vial the time-delay approximation. The proposed guidance law is used in a typical guidance problem. The simulation results show the effectiveness of the suggested approach in comparing to the similar one.

Keywords

References

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