NEXRAD data is also used by the FAA as an overlay on flight radar to enhance aircraft safety.
NEXRAD数据也可以被美国联邦航空局用作对飞行雷达的覆盖，以提高飞机的安全。
2
The main tasks of the paper include: Firstly, it studies and establishes an implementing project of overlay display of the ECDIS and the radar digital batched objects information.
论文的主要工作有：首先，重点研究并制定了电子海图系统与雷达数字批目标信息叠加显示的实施方案。
3
Finally, overlay displaying the radar digital batched objects on electronic chart is realized.