基于GPS的红外成像测向交叉定位方法

开展基于GPS的红外成像测向交叉定位研究,引入GPS技术进行测站定位、确定目标测向基准,以地理投影坐标系为定位坐标系,建立双站交叉定位、测站定位、目标测向数学模型；分析定位误差与布站情况、GPS定位精度、测角精度的关系；提出基于SolidWorks的仿真试验方法,验证了本文双站交叉定位数学模型的正确性；设计两组外场验证试验,全面验证了本文定位方法的有效性。试验表明,本文方法对近1km远处目标的定位误差<0.5m,不要求测站相互可见,且便于描述目标偏离测站、其他任意GPS已知点的地理方位角,具有重要应用价值。

GPS-based infrared imaging direction finding cross-location

The GPS-based infrared imaging direction finding cross-location research is carried out.GPS technology is used to locate the stations and determine the reference of direction-finding.The geographic projection coordinate system is used for location.The mathematical models of dual-station cross-location,station location and direction-finding are built.The relationship between location error and system configuration including station location,GPS positioning accuracy and angle measurement accuracy is studied.The simulation experiment method based on SolidWorks is proposed to verify the correctness of the mathematical model of dual-station cross-location.Two groups of field experiment are designed,which have fully verified the effectiveness of the proposed method.Experimental results show that the location error is less than 0.5 m for the target 1 km away.The proposed method does not require the stations to be visible to each other,and it is convenient to describe the geographical azimuth that target deviate from the station or any other position with GPS known.It shows important application value in many fields.