Ground penetrating radar (GPR) has been used widely in the underground metal mines, and the results of surveying are often influenced by the complicated subsurface environment.
探地雷达技术(GPR)在地下金属矿中应用日益广泛，然而复杂的井下环境时常影响雷达的测试效果。
2
Infrared lens is one of important components of photoelectricity radar which is the key equipment responsible for infrared following up and surveying targets in a fighter plane.
红外透镜是决定战斗机中负责目标红外跟踪及探测的关键机载设备光电雷达的红外性能的重要部件。
3
Fixed target is adopted as observation mark in marking targets of surveyingradar.