利用数据平滑抑制无线电高度表的多普勒效应误差  

Use Data Smoothness to Suppress the Doppler Error of Radio Altitude Meter

作　　者：陈昊鹏[1] 张保稳[1] 

机构地区：[1]上海交通大学计算机科学与工程系,上海200030

出　　处：《计算机工程与应用》2003年第13期46-47,67,共3页Computer Engineering and Applications

基　　金：航空基金"航空软件逆向工程技术"资助课题(编号:00F53051)

摘　　要：针对多普勒效应对频率测量造成的误差使无线电高度表的测高精度受到影响的问题,提出使用加权平均算法、N次平均算法来抑制多普勒效应误差对测量的影响,并对它们的优缺点进行了分析,给出了各自适用的场合。这些算法分别在国内的三种无线电高度表上使用的效果证明了它们的可行性和可靠性。Aiming at the problem that the precision of altitude was affected by the error of frequency measure which generated by the Doppler Effect,this paper proposes to use the weighted average method and N times average method of data smoothness to suppress the Doppler error of radio altitude meter.The paper analyzes the benefits and trade-offs of them,and the proper situations that they should be used.These methods have been applied to three sorts of radio altitude meters,and been proved they were feasible and reliable.

关 键 词：多普勒效应 加权平均算法 N次平均算法 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]