Airborne synthetic aperture radar route laying method, device and equipment and storage medium

Abstract

The invention relates to a route laying method and device for an airborne synthetic aperture radar (SAR), a computer device and a storage medium. The method comprises the following steps: according tothe DEM data, the radar parameters, the measuring area range and the initial route direction, calculating sampling start and sampling stop of the air route, and the ground coverage area, the overlapping area and the shadow area corresponding to the areas air route; through given degree of overlap, determining the initial position, sampling start and sampling stop of the next route, calculating the ground coverage area, calculating the overlapping degree of the two, iteratively changing the position of the next route until the actual overlapping degree of the adjacent routes is matched with the preset overlapping degree, determining the next route as the position, and calculating the overlapping area and the shadow area of the next route; repeating the process to determine all route sets of the measuring area; and repeatedly executing the calculation process according to a given angle step length and a rotation route direction until the calculation process rotates for a circle, and taking the area sum of the final overlay area and the shadow area and the minimum route set as an optimal design result.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to an airborne synthetic aperture radar route optimization laying method, device, computer equipment and storage medium. Background technique [0002] Synthetic Aperture Radar (SAR) is a side-looking imaging sensor. In the traditional radar route design, it is generally based on the DEM data of the given area to estimate or count the slope direction of the DEM, based on the direction of the mountain shadow map, artificial experience Determine the flight direction of the route. Then, based on the SAR parameters, determine the lateral overlap of the route according to the requirements, and perform aerial photography partitioning according to the elevation change range of the DEM, so that in the same aerial photography partition, the elevation change value of the DEM is between 1 / 6 and 1 / 4 of the flight height Between, the route is laid on the condition that the highest po...

AI Technical Summary

Problems solved by technology

At the same time, when flying on traditional routes, the sampling start and sampling cutoff are simply estimated according to the average height of the terrain in the survey area and the radar parameters. When the terrain fluctuates greatly, the radar data Inconsistency between the actual coverage and the theoretical design coverage, which will lead to insufficient overlap or air leakage

Images