Electromagnetic vortex synthetic aperture radar echo signal simulation method and device

A technology of synthetic aperture radar and echo signal, applied in the field of radar

Active Publication Date: 2018-02-02
BEIHANG UNIV
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  • Abstract
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Problems solved by technology

[0004] In the related technology, the SAR echo simulation is to simulate the ordinary radar electromagnetic signal as the radar transmission signal, and only the echo signal of the ordinary radar electromagnetic signal can be obtained

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  • Electromagnetic vortex synthetic aperture radar echo signal simulation method and device
  • Electromagnetic vortex synthetic aperture radar echo signal simulation method and device
  • Electromagnetic vortex synthetic aperture radar echo signal simulation method and device

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Embodiment Construction

[0070] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0071] see figure 1 , is a schematic diagram of a radar system according to an embodiment of the present disclosure. The radar system 100 includes: a radar 101 , an airborne device 102 and one or more point targets 103 .

[0072] The radar 101 can be mounted on the airborne equipment 102 and run at a certain speed following the airborne equipment 102 . The radar 101 can perform ranging or two-dimensional imaging on the point target 103 within the beam range. The point target 103 can be any object.

[0073] The radar 101 includes an antenna 201, a transmitter 202, a receiver 203, a signal processing module 204, a transceiving switch 205, and the like.

[...

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Abstract

The invention discloses an electromagnetic vortex synthetic aperture radar echo signal simulation method and device. The method comprises the following steps: obtaining simulation parameters of a radar system; according to the obtained simulation parameters, determining scene parameters of a target scene region; and according to the simulation parameters and the scene parameters, obtaining an electromagnetic vortex synthetic aperture radar echo signal. The provided echo signal simulation method is suitable for the situation where an electromagnetic vortex carrying an orbital angular momentum serves as a radar transmitting signal; and the method can accurately describe the electromagnetic vortex synthetic aperture radar echo signal, and lays a model foundation for realizing electromagneticvortex synthetic aperture radar imaging processing.

Description

technical field [0001] The present disclosure relates to the field of radar technology, and in particular, to a method for simulating echo signals of electromagnetic vortex synthetic aperture radar. Background technique [0002] Synthetic Aperture Radar (SAR) satellites have developed rapidly in recent years. Since SAR satellites are not limited by factors such as weather, geography, and time, they can observe the earth all-weather and all-weather, and have certain penetration Therefore, it is widely used in military reconnaissance, topographic mapping, resource detection, ocean observation, ecological monitoring, natural disaster monitoring, rapid rescue, etc. [0003] Synthetic Aperture Radar simulation technology is a technology that uses simulation method to study SAR system, and it plays a very important role in the development of SAR. The fidelity of simulation results and simulation operation efficiency are two core factors restricting the practical application of SA...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40G01S13/90
CPCG01S7/4052G01S13/90G01S13/904
Inventor 王鹏波方越陈杰杨威门志荣
Owner BEIHANG UNIV
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