Communication-in-motion phased-array antenna beam control system

Abstract

The invention discloses a communication-in-motion phased-array antenna beam control system. The system comprises an FPGA control module and a DSP control module, and is characterized in that the FPGA control module is connected with the DSP control module; the FPGA control module receives the position information, the attitude information and the ephemeris data, and sends the ephemeris data, the position information and the attitude information to the DSP control module; the DSP control module carries out resolving according to the ephemeris data, the position information and the attitude information and sends a resolving result to the FPGA control module; and the FPGA control module performs beam resolving according to the resolving result to obtain a phase shift control code and an amplitude control code pointed by a target beam of each antenna unit of a receiving component array and a transmitting component array, and sends the phase shift control code and the amplitude control code to the receiving component array and the transmitting component array. According to the system, the purpose of rapid beam scanning can be achieved, and real-time tracking of a high-speed moving antenna carrier can be achieved more easily in communication-in-motion satellite communication.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a beam control system for a phased array antenna in motion. Background technique [0002] In the field of satellite communication, a satellite communication system refers to a communication system that uses artificial earth satellites as relay stations to forward or transmit radio waves to realize communication between two or more earth stations or between an earth station and a spacecraft. [0003] Mobile communication refers to the abbreviation of "moving satellite ground station communication system". The posture and geographic location of platforms such as vehicles, ships, and airplanes continue to change during the movement process, causing the antenna beam to shift and roll, which is likely to cause signal weakening or loss, so it is necessary to use an antenna in motion. Through the mobile communication system, mobile carriers such as vehicles, ships and aircraft can track satelli...

AI Technical Summary

Problems solved by technology

[0004]The traditional parabolic antenna and flat panel antenna in motion, the control system is servo control, servo control is affected by electronic compass, gyroscope and other devices, scanning accuracy and response Sensitivity is limited, it is difficult to maintain flexible beam switching to achieve real-time tracking of high-speed moving antenna carrier

Images