Phase.to.disp {GInSARCorW}

InSAR Unw-Phase to displacement

Description

InSAR Unw-Phase to displacement

Usage

Phase.to.disp(unw_phase, wavelength = "in meter", unit = "m", inc_ang = 0)

Arguments

unw_phase

Un-wrapped InSAR tile/raster.After/before correction.

wavelength

SAR wavelength in meter.

unit

output unit meter , centimeter or milimeter ("m", "cm" or "mm").

inc_ang

SAR incident angle (to get output in LOS direction, don't use if not needed).

Author(s)

Subhadip Datta

Examples

library(raster)
library(GInSARCorW)
library(circular)
noDataAsNA<-FALSE
i1m<-system.file("td","20170317.ztd.rsc",package = "GInSARCorW")
i2m<-system.file("td","20170410.ztd.rsc",package = "GInSARCorW")
GACOS_ZTD_T1<-GACOS.Import(i1m,noDataAsNA)
GACOS_ZTD_T2<-GACOS.Import(i2m,noDataAsNA)
dztd<-d.ztd(GACOS_ZTD_T1,GACOS_ZTD_T2)
unw_pha<-raster(system.file("td","Unw_Phase_ifg_17Mar2017_10Apr2017_VV.img",package = "GInSARCorW"))
crs(unw_pha)<-CRS("+proj=longlat +datum=WGS84 +no_defs")
re_dztd<-d.ztd.resample(unw_pha,dztd)
unw_phase<-GACOS.PhCor(unw_pha,re_dztd,0.055463,inc_ang=39.16362,ref_lat=NA,ref_lon=NA)
Phase.to.disp(unw_phase,0.055463,unit="m",39.16362)