基于DWL的合成视景系统数据库的完整性

合成视景系统（SVS）是解决可控飞行撞地(CFIT)事故的有效途径，近年来，国家实施的重点基础研究发展计划已经把SVS的相关研究纳入了计划研究的一部分。SVS数据库的完整性研究是SVS研究中比较重要的部分。基于现阶段大部分飞机上都配备GPS、雷达测高仪等设备，本文主要基于下视传感器（DWL）对SVS数据库的完整性进行研究。基于DWL对SVS数据库进行实时监控可以有效保证数据库垂直方向数据的完整性，但是对于飞机数据库水平方向数据的完整性保证能力还略显不足。

Synthetic Vision System Terrain Database Integrity Based on DWL

Synthetic vision system (SVS) is an effective solution of controlled flight into terrain (CFIT). In recent years, the national key basic research development plan has brought into the related research on synthetic vision system to study. The study of synthetic vision system terrain database integrity is an important part of the SVS research. Based on the present stage, most aircrafts are equipped with GPS, radar altimeter and other equipment, this paper is about a study of synthetic vision system terrain database integrity based on downward looking (DWL). The real-time monitor of synthetic vision system database based on DWL can effectively guarantee the integrity of the vertical database data, but for aircraft horizontal database data integrity, the assurance ability is also slightly insufficient.