基于互累积量的遥测数据时延估计方法  

An Approach to Estimate Time Delay of Telemetry Data Based on Cross-cumulant

作　　者：朱学锋[1] 韩宁[1] 

机构地区：[1]92941部队

出　　处：《遥测遥控》2009年第3期65-68,共4页Journal of Telemetry,Tracking and Command

摘　　要：分析遥测数据的时延特点和处理要求,提出在遥测数据流基础上基于互累积量估计各测站时间延迟的方法。仿真试验表明,方法可以精确估计遥测数据的帧时延,增强各测站遥测数据对接过程中时间和帧数据的一致性和准确性,为数据处理提供完整的遥测数据。This paper analyzes the characteristics of time delay and the demands of data processing on telemetry data,and it presents a new method based on high-order statistic which revises the time delay between observation stations on telemetry data streams.Simulation results show that the proposed method can accurately estimate the sub-frame time delay of telemetry data,and promote the consistency and veracity of time and data during the data joining of the telemetry data of observation stations,and provide integrated telemetry data for data processing.

关 键 词：遥测数据 时延估计 互相关 高阶统计量 

分 类 号：V557.3[航空宇航科学与技术—人机与环境工程]