基于多模馈源体制的校相结果预估  

Estimation of Phase Calibration Results Based on Multi-Mode Feed System

作　　者：王向伟 李敏剑[1] 樊星[1] WANG Xiangwei;LI Minjian;FAN Xing(The Unit 63618 of PLA,Korla 841001,China)

机构地区：[1]中国人民解放军63618部队,库尔勒841001

出　　处：《遥测遥控》2025年第2期79-85,共7页Journal of Telemetry,Tracking and Command

摘　　要：在地面测控设备执行精密测控任务的过程中,为了准确地跟踪角误差解调信号,需要对跟踪接收机进行相位修正和斜率修正,获取修正值的过程称为校相。确保和差接收通道的精确相位差校准是满足测角分系统对目标自跟踪要求的关键步骤。多模馈源跟踪系统传统的校相方式面临效率低下、易受标校设备故障及野外架设环境影响等挑战,这不仅限制了测控任务的顺利进行,还可能对目标跟踪精度造成不利影响。本文旨在通过对现有标校方法进行研究分析,对现有标校数据进行深度挖掘,引入数理统计的多次拟合分析方法进行移相值预测,从而在实战中有效提升测控设备的应急测控能力,确保任务执行的连续性和准确性。During the execution of precision measurement and control tasks by ground-based equipment,in order to accurately track the angular error demodulation signal,phase and slope correction of the tracking receiver are required,and the process of obtaining the correction value is called phase calibration.Ensuring the precise phase difference calibration of the sum and difference receiving channels is a key step to meet the self-tracking requirements of the target for the angle measurement subsystem.The traditional phase calibration method for multimode feed tracking systems faces challenges such as low efficiency,susceptibility to calibration equipment failures,and the impact of field setup environments,which not only limits the smooth progress of measurement and control tasks but may also have an adverse effect on the accuracy of target tracking.This paper aims to study and analyze existing calibration methods,deeply mine the existing calibration data,and introduce the method of multiple fitting analysis of mathematical statistics to predict the phase shift value,thereby effectively enhance emergency measurement and control capability of the measurement and control equipment in practice,ensuring the continuity and accuracy of task execution.

关 键 词：多模馈源 测角分系统 校相 移相值 

分 类 号：V556.1[航空宇航科学与技术—人机与环境工程] TN953[电子电信—信号与信息处理]