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使用激光/惯性地形剖面测量系统进行地震剖面测量 (sessmic Profiling Using a Laaer/Inertail Terrain Profiler)M.L.Engler and P.J.Fenton,NortechSurveys(Canada)Inc. (S18.1) Nortech测量公司(加拿大)扩大了包括航空激光剖面测量系统在内的高技术水平的测地定位业务。该系统的设计是为直升飞机飞越裸露的或叶片状覆盖的地带,以及为冰雪所覆盖的地表,提供地面的真实资料。该系统利用Nortech公司的Ferranti陆地惯性测量装置(Surveyor)获得直升飞机的三维位置,使用红外激光测高仪测得直升飞机距地面的高度。由于测高仪具有高的脉冲率以及特有的信号处理特性,所以能够获得厚叶片状区的地面真实资料。激光仪所测得的剖面精度不低于1米。在许多叶片状层覆盖、高低起伏不平的地形条件下,航空激光剖面测量系统与其它方法相比,具有一些明显的优点。地面的真实资料可以以高的日生产效率获得,而作出最
Northeuristics (Canada) Inc. (S18.1) Nortech Surveys (Canada) has expanded its portfolio of aerospace and aerospace products including aerospace Laser profile measurement system, including high-tech geodetic positioning business. The system is designed to provide real ground information for helicopters flew over exposed or leaf-covered areas, as well as the surface covered by ice and snow. The system uses the Nortel Ferranti land inertial surveyor (Surveyor) to obtain the three-dimensional position of the helicopter, the use of infrared laser altimeter to measure the height of the helicopter from the ground. Because of the high pulse rate and unique signal processing characteristics of the altimeter, true-to-earth information on thick blade-shaped zones can be obtained. Laser section measured accuracy of not less than 1 meter. Compared with other methods, the airborne laser profiling system has some obvious advantages under the condition of many leaf-shaped layers covering the topography and undulating terrain. The real information on the ground can be obtained with a high daily production efficiency, while making the most