Research On Macro Model For Compatibility Between Indexes Of On-orbit Lidar And Attribute Of Target In Space

With the large scale development of exploring the aerospace technology by human beings,the on-orbit servicing technology is becoming the “strategic heights” of sustaining country security and promoting domestic development of economy,the pose measurement of non-cooperation target in space is one of them.On the other hand,imaging radar technology is an important approach to realize the pose measurement of non-cooperation target in space.In the field of aerospace,the requirement of carrying the laser radar system on spacecraft is thorny.The conventional or overdue index selection has some undesirable effect on the on-orbit system.So solving the problem of index optimization selection of laser radar is the premise and key to realize the pose measurement of non-cooperation target in space.This paper researches on the working principle and target features of detector array radar and refers to the imaging radar indexes and target property compatibility iterating macro model,in order to solve the problem and providing the theoretical evidence for choosing reasonable laser radar index.The model explores the relationship between laser radar index and target property for realizing to choose the reasonable key parameters,resolution,field angle,transmit power,ranging precision,of laser radar.Firstly,utilizing the target scale and target distance to calculate the initial value of radar resolution and field angle.Secondly,based on the formulation of laser radar distance,iterating the solution of biggest radar scaling distance in order to supply the evidence of optimizing transmit power of laser radar.Thirdly,using deep symbiosis matrix to analyze the target surface texture,and iterate the second order parameters of co-occurrence matrix to make sure the reasonable resolution and field angle.Finally,the reasonable ranging precision of the radar can be acquainted by point clouds registration algorithm to iterating the result of the point clouds registration algorithm under the target coordination and world coordination.The experimental result shows that the index value of model optimization selection of laser radar similar to the index value of experience or even has better economy under the requirement of measuring accuracy,from that,the macro model of detector array radar mentioned above can provide the theoretical evidence to select reasonable index for 3-D array lidar in space.