Research On The Application Of Calibration Field In Aerial Photogrammetry For Frame Digital Camera

Based on the study and analysis of the principle of POS system, this paper focuses on the POS supporting aerial photogrammetry method and main error sources, analyzes the important use of survey area calibration field in POS supporting aerotriangulation and makes researches and tests on the key techniques such as survey area calibration field location,flight plan, frequency of calibration, control point layout plan and indexes of calibration process control quality.Combining with the experiment verification of the frame digital camera test flight,this paper presents the control point layout plan of POS supporting aerotriangulation based on calibration field and summarizes the operation process of the POS supporting aerial photogrammetry which improves the production efficiency and provides an important basis and technical support for the production of frame digital cameras.This paper mainly studies the application of survey area calibration fields assisting frame digital cameras,the content includes as follows:1、This paper presents the theory and technology method of POS supporting aerial photogrammetry and discusses the important role of survey area calibration fields.2、This paper makes research on key technology of survey area calibration fields which includes survey area layout, aerial flight, layout of basestation and ground control point and data calculation of calibration fields.3、This paper makes difference type of trials and conclusions by means of calculation and analysis accuracy of test results of five different calibration field layout plans.4、This paper analyses and tests on the quantities of photo control point on different mapping scale after the calibration,confirms the possibility of direct positioning and the control point optimization layout of POS supporting aerial photogrammetry production.5、By real examplesof production this paper summarizes the operation process of the POS supporting aerial photogrammetry and determines the scientific and reasonable POS supporting aerotriangulation production technology flow.