Ka band along-track interference SAR system and working method thereof

A ka-band and track technology, applied in radio wave measurement systems, radio wave reflection/re-radiation, and utilization of re-radiation. gain effect

Inactive Publication Date: 2017-06-30
王辉
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  • Claims
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Problems solved by technology

[0005] The problem solved by the present invention is that the existing single-satellite SAR interferometry method cannot meet the accuracy requirements of ocean current velocity measurement; in order to solve the problem, the present invention provides a Ka-band along-track interferometric SAR system and its working method

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  • Ka band along-track interference SAR system and working method thereof
  • Ka band along-track interference SAR system and working method thereof
  • Ka band along-track interference SAR system and working method thereof

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Embodiment Construction

[0017] Hereinafter, the spirit and essence of the present invention will be further elaborated in conjunction with the drawings and embodiments.

[0018] It can be seen from the background technology that the traditional satellite altimeter cannot meet the accuracy requirements of ocean current velocity measurement, and the velocity measurement by spaceborne SAR along-track interferometry may require multiple satellites for network measurement, the system is complex and difficult, or the accuracy of single-satellite measurement is limited. The applicant analyzes the above problems, and in the present invention provides a Ka-band along-track interferometric SAR system and its working method that can meet the accuracy requirements of ocean current velocity measurement.

[0019] Such as figure 1 As shown, the Ka-band along-track interferometric SAR system provided by the present invention includes a transmitting antenna mounted on a satellite, and on the same star, the first rece...

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Abstract

The invention discloses a Ka band along-track interference SAR system and a working method thereof. The Ka band along-track interference SAR system comprises a transmitting antenna which is carried on the satellite and a first receiving antenna and a second receiving antenna which are arranged on the same satellite and respectively positioned at the two sides of the transmitting antenna. The working band of the antennas is the Ka band. The connecting line of the centers of mass of the first receiving antenna and the second receiving antenna is parallel to the tracks of the satellite.

Description

technical field [0001] The invention belongs to the technical field of synthetic aperture radar imaging, and in particular relates to a Ka-band along-track interferometric SAR system and a working method thereof. Background technique [0002] Ocean current, also known as ocean current, is a large-scale relatively stable flow formed by water masses with different densities due to heat radiation, evaporation, precipitation, and cold shrinkage, plus wind stress, geostrophic deflection force, and tidal force. It is one of the common forms of motion of seawater. Ocean currents affect and restrict various physical, chemical, biological and geological processes in the ocean, as well as the formation and change of climate and weather over the ocean. [0003] The current ocean current monitoring methods include: (1) using satellite altimeter data to indirectly invert the ground, this method is only applicable to the measurement of ocean circulation at a scale of 100 kilometers, and ...

Claims

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Application Information

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IPC IPC(8): G01S13/90
CPCG01S13/90G01S13/9023G01S13/9029
Inventor 王辉郑世超姜漫孙志强谢少彪
Owner 王辉
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