Method and device for correcting calibration coefficient of backscattering coefficient

A technology of backscattering coefficient and backscattering, which is applied in measuring devices, electrical digital data processing, special data processing applications, etc., and can solve problems such as drift of observation values
CN106777698AActive Publication Date: 2017-05-31NAT SATELLITE OCEAN APPL SERVICE
5 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NAT SATELLITE OCEAN APPL SERVICE
Publication Date
2017-05-31

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a method and a device for correcting calibration coefficient of backscattering coefficient, is used for correcting the calibration coefficient of the backscattering coefficient of a satellite active microwave remote sensor and relates to the field of marine microwave sensing data processing. The method includes: building a combined radar backscattering model combining a microwave two-scale backscattering model with a geometric optical model; calculating to acquire sea surface radar backscattering coefficient according to the combined radar backscattering model, satellite observation data and buoy measured data, wherein the satellite observation data include observation backscattering coefficient; performing linear fitting on the sea surface radar backscattering coefficient and the observation backscattering coefficient to acquire linear fitting coefficient of the observation backscattering coefficient and the sea surface radar backscattering coefficient; correcting the calibration coefficient of the backscattering coefficient of the satellite active microwave sensor according to the linear fitting coefficient to enable the calibration coefficient to be more accurate.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of marine microwave remote sensing data processing, in particular to a calibration coefficient calibration method and device for backscattering coefficients. Background technique

[0002] The ocean surface wind field is an active factor affecting waves, currents, and water masses, and a basic parameter of ocean dynamics. The detection of the global ocean wind field is used in disaster prevention and mitigation in coastal areas, marine environmental protection, and promotion of ocean-related scientific research. is of great significance. Active microwave remote sensors carried by satellites, such as microwave scatterometers and radar altimeters, have become very important observation methods for ocean surface wind fields due to their advantages of all-day, all-weather, high temporal and spatial resolution, and coverage.

[0003] When the backscatter coefficient in the satellite active microwave remote sensor observati...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More