某型无线电高度表“掉高”分析与应对措施  

Analysis and Solution for the “Height Drop” Error on a Type of Radio Altimeter

作　　者：蒋海超 黄子露 

机构地区：[1]航空工业洪都,江西南昌330024

出　　处：《教练机》2017年第2期31-34,共4页Trainer

摘　　要：分析了差拍计数调频连续波无线电高度表的测高原理及无线电高度表测高误差产生的原因,指出了出现"掉高"现象的危害。由此,对无线电高度表的垂直速度信号实施了针对性滤波措施,改进后飞行试验结果表明该措施可行。This paper analyzes the height measuring principle of the radio altimeter, which adopts the beat countcontinuous wave, finds out the cause for the height measuring error, and points out the bad effects of the ＂heightdrop＂ phenomenon. Based on these efforts, a specific filtering measure is used for the vertical velocity signal of thistype of radio altimeter. The flight testing result after the modification demonstrates that this measure is feasible.

关 键 词：差拍计数 无线电高度表 滤波器 

分 类 号：V241.423[航空宇航科学与技术—飞行器设计]