Method for inverting low-frequency vibration parameters of spacecraft based on multiple continuous remote sensing images
The invention discloses a method for inverting low-frequency vibration parameters of a spacecraft based on multiple continuous remote sensing images, and the method comprises the following steps of: firstly, continuously shooting multiple remote sensing images on a ground scene at a high speed by us...
Gespeichert in:
Hauptverfasser: | , , , , , , , |
---|---|
Format: | Patent |
Sprache: | chi ; eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | The invention discloses a method for inverting low-frequency vibration parameters of a spacecraft based on multiple continuous remote sensing images, and the method comprises the following steps of: firstly, continuously shooting multiple remote sensing images on a ground scene at a high speed by using a spacecraft optical camera at a frequency far higher than the vibration frequency of the spacecraft, and intercepting image blocks with the same scene by using an SIFT (Scale Invariant Feature Transform) algorithm; calculating an entropy value based on a gray-level co-occurrence matrix for a plurality of continuous remote sensing image blocks; then measuring corresponding MTF data of the image blocks by using a blade edge method, and constructing support vector regression (SVR) to measure the vibration quantity corresponding to each remote sensing image block; determining whether the vibration quantity is positive or negative according to the moment when the maximum entropy value of a plurality of continuous r |
---|