Method and device for realizing earth observation mode of stationary orbit multi-frequency terahertz detector

Abstract

The invention provides a method and a device for realizing an earth observation mode of a stationary orbit multi-frequency terahertz detector. The method comprises the following steps: setting an earth observation task of a stationary orbit multi-frequency terahertz detector; establishing an observation planning model, determining constraint conditions required to be met by the observation planning model according to the earth observation task, and calculating the observation planning model and related parameters of the constraint conditions; and substituting related parameters of the observation planning model into the observation planning model and the constraint conditions under the corresponding earth observation task, and performing model optimization solution to obtain optimal scanning parameters so as to determine an optimal earth observation mode. Therefore, a conflict problem between scanning efficiency and data quality when the stationary orbit multi-frequency terahertz detector carries out two-dimensional scanning is solved.

Description

technical field [0001] The disclosure relates to a method for realizing the earth observation mode of a multi-frequency terahertz detector in geostationary orbit, and also relates to a device for realizing the earth observation mode of the multi-frequency terahertz detector in geostationary orbit, belonging to the technical field of geostationary orbit remote sensing. Background technique [0002] According to the monitoring requirements of different weather systems, it is necessary to design different earth observation missions and observation modes for multi-frequency terahertz sounders in geostationary orbit. The multi-frequency terahertz sounder carried by the geostationary satellite performs two-dimensional scanning through its main beam to achieve effective coverage of the observation target. The main beam scanning effect of the multi-frequency terahertz detector in geostationary orbit can be comprehensively evaluated from two aspects: scanning efficiency and acquired ...

AI Technical Summary

Problems solved by technology

[0003] In fact, when the multi-frequency terahertz detector in geostationary orbit performs two-dimensional scanning through its main beam, there is a contradiction between the scanning efficiency and the signal-to-noise ratio: speeding up the scanning speed of the multi-frequency terahertz detector in geostationary orbit can ensure its Scanning efficiency, but the signal-to-noise ratio will decrease; slow down the scanning speed of the multi-frequency terahertz detector in geostationary orbit, although the signal-to-noise ratio can be improved, but the scanning efficiency will decrease

Images