Time series InSAR tropospheric delay correction in complex mountainous areas
US12270897B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2024 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Aug 5, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a time series InSAR tropospheric delay correction method for relieving atmospheric seasonal oscillation, so as to relieve the seasonal oscillation deviation caused by tropospheric delay. This method is based on the temporal and spatial characteristics of atmospheric delay. Firstly, based on the ERA-5 atmospheric grid data covering the study area, the ZTD negative exponential vertical profile function model is established. Fourier series function is introduced to establish the time series model for β and ZTDr, Finally, according to the radar incidence angle parameters, the delay is changed from zenith direction to radar line of sight direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.