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提出了利用伪随机序列并行确定上行组阵各天线载波相位差的标校方法。该方法具有精度高、并行处理、所需时间短、标校通道一致等显著技术优势。利用现有的扩频测控多功能数字基带系统搭建实验平台,通过演示实验验证了该标校方法的正确性以及工程可实现性。实验结果与理论分析十分吻合。
A calibration method based on pseudo-random sequence parallel determination of phase difference of each antenna carrier in uplink group array is proposed. The method has the obvious advantages of high precision, parallel processing, short time, consistent calibration of calibration channels. By using the existing spread spectrum measurement and control multi-functional digital baseband system to build an experimental platform, the correctness of the calibration method and the feasibility of the project are verified through demonstration experiments. The experimental results are in good agreement with the theoretical analysis.