a-scan meaning in Chinese

a型扫掠
a型扫描
形扫描

The results are presented in the form of snapshots and a - scan plots
模拟结果以波场快照和a扫描曲线形式给出。
Comparison of c - scan of entire sample and the date of local point a - scan collected and processed with the metallorgaphs of sample cross section showed that the method could be used to determine the spot size of resistance spot welding
对接头焊点的c扫描及对局部点的a扫描信号的采集与分析，经负际焊点横截面的金相观察对比，可以较准确确定点焊的焊核直径。
Studied the cluster and background reduction algorithm and , proposed an enhanced adaptive step average method based on the amplitude of a - scan signal ; 2 . improved the gpr data acquisition and processing software , some utilities have been added such as position wheel control program , data format translation etc . ; 3 . implemented 3d targets imaging using mixed programming of matlab and visual c + + ; 4
本文的主要工作如下: 1 .研究了探地雷达回波信号杂波及背景去除算法,改进了一种基于a - scan信号强度的自适应滑动平均法; 2 .改进并完善了探地雷达数据采集处理软件,加入了定位轮控制数据采集、数据格式转换、目标距离测定等程序; 3 .研究了探地雷达目标成像算法,利用动态链接库技术实现了在脱离matlab环境下在visualc + +编写的程序中调用matlab程序对目标进行三维成像的功能; 4 .参加外场实验及项目验收。