Problem and Analysis of Phase Wind-Up of Satellite Navigation Antennas for Rotating Carriers

Abstract

This paper analyzes the characteristics of satellite navigation signals received by the high-speed rotating carrier in order to solve the problems existing in the application of satellite navigation receiver in the high-speed rotating carrier, studies the influence of rotation on the received signal amplitude and carrier phase shift. This paper also establishes the received signal amplitude change model and carrier phase shift model under the condition of body rotation. The antenna phase wind-up is proposed to introduce additional carrier phase shift and improve the original system model. Based on the signal model, the system simulation is carried out, and the experimental environment is built for testing, which verifies the necessity and correctness of the system model with antenna phase wind-up, and provides theoretical support for improving the defensive and guiding performance of small-caliber rotating missile.

Keywords

• |rotation carrier|satellite navigation|amplitude change model|carrier phase shift model|phase wind-up