307 lines
11 KiB
Python
307 lines
11 KiB
Python
#! /usr/bin/env python
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#'''
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##################################################################################
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# #
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# Author: Yun-Meng Cao #
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# Email : ymcmrs@gmail.com #
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# Date : June, 2019 #
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# #
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# Generate SLC from SAR_IMS_P1 data #
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# #
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##################################################################################
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#'''
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import numpy as np
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import os
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import sys
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import subprocess
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import getopt
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import time
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import glob
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def check_variable_name(path):
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s=path.split("/")[0]
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if len(s)>0 and s[0]=="$":
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p0=os.getenv(s[1:])
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path=path.replace(path.split("/")[0],p0)
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return path
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def read_template(File, delimiter='='):
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'''Reads the template file into a python dictionary structure.
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Input : string, full path to the template file
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Output: dictionary, pysar template content
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Example:
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tmpl = read_template(KyushuT424F610_640AlosA.template)
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tmpl = read_template(R1_54014_ST5_L0_F898.000.pi, ':')
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'''
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template_dict = {}
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for line in open(File):
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line = line.strip()
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c = [i.strip() for i in line.split(delimiter, 1)] #split on the 1st occurrence of delimiter
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if len(c) < 2 or line.startswith('%') or line.startswith('#'):
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next #ignore commented lines or those without variables
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else:
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atrName = c[0]
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atrValue = str.replace(c[1],'\n','').split("#")[0].strip()
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atrValue = check_variable_name(atrValue)
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template_dict[atrName] = atrValue
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return template_dict
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def UseGamma(inFile, task, keyword):
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if task == "read":
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f = open(inFile, "r")
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while 1:
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line = f.readline()
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if not line: break
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if line.count(keyword) == 1:
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strtemp = line.split(":")
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value = strtemp[1].strip()
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return value
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print("Keyword " + keyword + " doesn't exist in " + inFile)
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f.close
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def rm(TXT):
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call_str = 'rm ' + TXT
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os.system(call_str)
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def usage():
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print('''
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******************************************************************************************************
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Generate SLC and SLC_par file for ERS/ENVISAT (SAR_IMS_1P format)
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usage:
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Down2SLC_ERS.py ProjectName DownName
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e.g. Down2SLC_ERS.py CotopaxiT120ERSA 910101
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*******************************************************************************************************
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''')
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def main(argv):
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if len(sys.argv)==3:
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projectName = sys.argv[1]
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Date = sys.argv[2]
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else:
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usage();sys.exit(1)
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scratchDir = os.getenv('SCRATCHDIR')
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templateDir = os.getenv('TEMPLATEDIR')
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templateFile = templateDir + '/' + projectName + '.template'
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templateContents=read_template(templateFile)
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if 'rlks4cor' in templateContents: rlks4cor = templateContents['rlks4cor']
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else: rlks4cor = '4'
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if 'azlks4cor' in templateContents: azlks4cor = templateContents['azlks4cor']
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else: azlks4cor = '4'
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if 'rwin4cor' in templateContents: rwin4cor = templateContents['rwin4cor']
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else: rwin4cor = '128'
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if 'azwin4cor' in templateContents: azwin4cor = templateContents['azwin4cor']
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else: azwin4cor = '128'
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if 'rsample4cor' in templateContents: rsample4cor = templateContents['rsample4cor']
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else: rsample4cor = '64'
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if 'azsample4cor' in templateContents: azsample4cor = templateContents['azsample4cor']
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else: azsample4cor = '64'
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if ' rpos4cor' in templateContents: rpos4cor = templateContents[' rpos4cor']
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else: rpos4cor = ' - '
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if 'azpos4cor' in templateContents: azpos4cor = templateContents['azpos4cor']
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else: azpos4cor = ' - '
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if 'rfwin4cor' in templateContents: rfwin4cor = templateContents['rfwin4cor']
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else: rfwin4cor = str(int(int(rwin4cor)/2))
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if 'azfwin4cor' in templateContents: azfwin4cor = templateContents['azfwin4cor']
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else: azfwin4cor = str(int(int(azwin4cor)/2))
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if 'rfsample4cor' in templateContents: rfsample4cor = templateContents['rfsample4cor']
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else: rfsample4cor = str(2*int(rsample4cor))
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if 'azfsample4cor' in templateContents: azfsample4cor = templateContents['azfsample4cor']
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else: azfsample4cor = str(2*int(azsample4cor))
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if 'thresh4cor' in templateContents: thresh4cor = templateContents['thresh4cor']
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else: thresh4cor = ' 0.2 '
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rlks = templateContents['Range_Looks']
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azlks = templateContents['Azimuth_Looks']
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projectDir = scratchDir + '/' + projectName
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downDir = scratchDir + '/' + projectName + "/DOWNLOAD"
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slcDir = scratchDir + '/' + projectName + '/SLC'
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if not os.path.isdir(slcDir):
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call_str= 'mkdir ' +slcDir
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os.system(call_str)
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os.chdir(downDir)
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t0 = 't0_' + Date
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call_str = 'ls >' + t0
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os.system(call_str)
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tt = 'tt_' + Date
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call_str = "grep " + Date + ' ' + t0 + '> ' + tt
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os.system(call_str)
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te = 'te_' + Date
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call_str = "grep SAR_IMS_1P " + tt + " > " + te
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os.system(call_str)
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AA= np.loadtxt(te,dtype=np.str)
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Na = AA.size
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AA=AA.reshape(Na,)
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for i in range(Na):
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Date0 = Date+'_' + str(i)
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downName = str(AA[i])
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FileDir = downDir + '/' + downName
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call_str = 'par_ASAR '+ FileDir + ' ' + Date0
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os.system(call_str)
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call_str ="rename 's/VV.SLC/slc/g' *"
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os.system(call_str)
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slcpar = Date0 + '.slc.par'
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call_str = 'ERS_orb_cor_par.py ' + slcpar
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os.system(call_str)
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Date0 = Date
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if len(Date)==6:
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Date6 = Date
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Date0 = Date
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elif len(Date)==8:
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Date0 = Date[2:8]
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Date6 = Date[2:8]
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else:
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print('The input Date is invalid.')
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sys.exit(1)
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dataDir = slcDir + '/' + Date0
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if not os.path.isdir(dataDir):
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call_str = 'mkdir ' + dataDir
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print('Generate SLC dir for date: ' + Date0)
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os.system(call_str)
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call_str = 'mv ' + Date + '*.slc* ' + dataDir
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os.system(call_str)
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os.chdir(dataDir)
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for i in range(Na):
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Date0 = Date+'_' + str(i)
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downName = str(AA[i])
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SLCm = Date0 + '.slc'
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SLCm_par = Date0 + '.slc.par'
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MamprlksImg = Date0 + '.amp'
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MamprlksPar = Date0 + '.amp.par'
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call_str = 'multi_look ' + SLCm + ' ' + SLCm_par + ' ' + MamprlksImg + ' ' + MamprlksPar + ' ' + rlks + ' ' + azlks
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os.system(call_str)
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nWidth = UseGamma(MamprlksPar, 'read', 'range_samples')
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call_str = 'raspwr ' + MamprlksImg + ' ' + nWidth
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os.system(call_str)
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SLC = Date6+'.slc'
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SLCPAR = Date6 + '.slc.par'
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AMP = Date6+'.amp'
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AMPPAR = Date6+'.amp.par'
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if Na==1:
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os.rename(SLCm,SLC)
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os.rename(SLCm_par,SLCPAR)
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os.rename(MamprlksImg,AMP)
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os.rename(MamprlksPar,AMPPAR)
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for i in range(Na-1):
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if i==0:
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DateA = Date + '_0'
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else:
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DateA = Date + '_' + str(i-1) + str(i)
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SLCA = DateA + '.slc'
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SLCA_par = DateA + '.slc.par'
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DateB = Date + '_' +str(i+1)
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SLCB = DateB + '.slc'
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SLCB_par = DateB + '.slc.par'
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DateC = Date + '_' + str(i) + str(i+1)
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SLCC = DateC + '.slc'
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SLCC_par = DateC + '.slc.par'
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#####################################################################################
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MamprlksImg = Date + '.amp'
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MamprlksPar = Date + '.amp.par'
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off = DateC + '.off'
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offs = DateC + '.offs'
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offsets = DateC + '.offsets'
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coffs = DateC + '.coffs'
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coffsets = DateC + '.coffsets'
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snr = DateC + '.snr'
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off_std = DateC + '.off_std'
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########################## Generate off file #############################
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call_str = "create_offset " + SLCA_par + " " + SLCB_par + " " + off + " 1 - - 0"
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os.system(call_str)
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call_str = 'init_offset_orbit '+ SLCA_par + " " + SLCB_par + ' ' + off
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os.system(call_str)
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call_str = 'init_offset '+ SLCA + ' ' + SLCB + ' ' + SLCA_par + ' ' + SLCB_par + ' ' + off + ' ' + rlks4cor + ' ' + azlks4cor + ' ' + rpos4cor + ' ' + azpos4cor
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os.system(call_str)
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call_str = 'init_offset '+ SLCA + ' ' + SLCB + ' ' + SLCA_par + ' ' + SLCB_par + ' ' + off + ' 1 1 - - '
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os.system(call_str)
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call_str = "offset_pwr " + SLCA + " " + SLCB + " " + SLCA_par + " " + SLCB_par + " " + off + " " + offs + " " + snr + " " + rwin4cor + " " + azwin4cor + " " + offsets + " 2 "+ rsample4cor + " " + azsample4cor
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os.system(call_str)
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call_str = "offset_fit " + offs + " " + snr + " " + off + " " + coffs + " " + coffsets + " " + thresh4cor +" 3"
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os.system(call_str)
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call_str = "offset_pwr " +SLCA + " " + SLCB + " " + SLCA_par + " " + SLCB_par + " " + off + " " + offs + " " + snr + " " + rfwin4cor + " " + azfwin4cor + " " + offsets + " 2 " + rfsample4cor + " " + azfsample4cor
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os.system(call_str)
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call_str = "offset_fit " + offs + " " + snr + " " + off + " " + coffs + " " + coffsets + " " + thresh4cor + " 4 >" + off_std
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os.system(call_str)
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########################################################################################
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call_str = 'SLC_cat ' + SLCA + ' ' + SLCB + ' ' + SLCA_par + ' ' + SLCB_par + ' ' + off + ' ' + SLCC + ' ' + SLCC_par
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os.system(call_str)
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if i==(Na-2):
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if len(Date)==6:
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DD = Date
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else:
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DD = Date[2:8]
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SLCm = DD + '.slc'
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SLCm_par = DD + '.slc.par'
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call_str = 'cp ' + SLCC + ' ' + SLCm
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os.system(call_str)
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call_str = 'cp ' + SLCC_par + ' ' + SLCm_par
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os.system(call_str)
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call_str = 'multi_look ' + SLCm + ' ' + SLCm_par + ' ' + MamprlksImg + ' ' + MamprlksPar + ' ' + rlks + ' ' + azlks
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os.system(call_str)
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nWidth = UseGamma(MamprlksPar, 'read', 'range_samples')
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call_str = 'raspwr ' + MamprlksImg + ' ' + nWidth
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os.system(call_str)
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call_str = 'rm *.amp'
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os.system(call_str)
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call_str = 'rm *_*.slc'
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os.system(call_str)
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print("Down to SLC for %s is done! " % Date)
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sys.exit(1)
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if __name__ == '__main__':
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main(sys.argv[:])
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