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Bilateral sar satellite imaging form simulation, dynamic simulation method and system

A simulation method and dynamic simulation technology, applied in the field of subject application, can solve problems such as difficulty in realizing SAR satellite imaging form simulation

Inactive Publication Date: 2020-09-04
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a bilateral SAR satellite imaging form simulation, dynamic simulation method and system

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  • Bilateral sar satellite imaging form simulation, dynamic simulation method and system
  • Bilateral sar satellite imaging form simulation, dynamic simulation method and system
  • Bilateral sar satellite imaging form simulation, dynamic simulation method and system

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Embodiment Construction

[0071] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0072] One-sided SAR satellites usually scan the ground area in the following way, as follows figure 1 shown. The satellite advances along the X direction, and the ground area scanned by the antenna instantaneously is two concentric circles projected to the ground from the cones made with the satellite position point as the apex and perpendicular to the sub-satellite point. The angle between the inner cones, that is, the minimum elevation angle is innerHalfAngle*2 , the included angle of the outer circular cone is the middle part (annulus) whose maximum height angle is outerHalfAngle*2, and then take the outer circular sector (maxclockangle-minclockangle, the sector clamped by the maximum clock angle and the minimum clo...

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Abstract

The invention discloses a bilateral SAR satellite imaging form simulation method. Dynamic simulation method and system, The method comprises the following steps: firstly, judging the specific imagingform type of an SAR satellite according to given sensor parameters of the SAR satellite; the method specifically comprises the following steps: 1. f(x,y)=a1+a2*x+a3*y+a4*x2+a5*x*x is calculated, wherein the value obtained by calculating f(x,y) is f1 when the value of x is tan(minimum elevation); when the value of x is a tan value, the value of f (x, y) is calculated to be f2, and then an image form is determined according to the size relation between the tan value and f2, f1; and finally, according to the judged types of the imaging forms of the bilateral SAR satellites, carrying out simulation by adopting image forms of the same type. According to the method, the imaging form of the bilateral SAR satellite scanning area can be effectively simulated, the simulation effect is good, and theresponse speed is high.

Description

technical field [0001] The invention relates to the application fields of aerospace, earth information science and technology, and more specifically, to a method and system for bilateral SAR satellite imaging form simulation and dynamic simulation. Background technique [0002] In the current earth observation application of remote sensing satellites, remote sensing satellites equipped with SAR sensors are widely used in disaster monitoring, environmental monitoring, ocean monitoring, resource exploration, crop monitoring, etc. Production estimation, surveying and mapping, and military affairs have been widely used, and have also attracted the attention of countries all over the world. Therefore, the imaging form of SAR sensors needs further research and development. Compared with remote sensing satellites such as optics and electronics, SAR satellites have the most and most complex sensor forms, and there is no way to disclose the imaging form simulation method of SAR satel...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/15G06F30/20
Inventor 余翔宇段乐泉陈鑫
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)