296 lines
8.5 KiB
Python
296 lines
8.5 KiB
Python
|
#!/usr/bin/env python3
|
||
|
|
|
||
|
|
import isce
|
||
|
|
import datetime
|
||
|
|
import isceobj
|
||
|
|
import numpy as np
|
||
|
|
from isceobj.Attitude.Attitude import Attitude
|
||
|
|
from iscesys.Component.Component import Component
|
||
|
|
from isceobj.Image.Image import Image
|
||
|
|
from isceobj.Orbit.Orbit import Orbit
|
||
|
|
from isceobj.Util.decorators import type_check
|
||
|
|
from iscesys.Traits.Datetime import datetimeType
|
||
|
|
|
||
|
|
NUMBER_OF_SAMPLES = Component.Parameter('numberOfSamples',
|
||
|
|
public_name='number of samples',
|
||
|
|
default=None,
|
||
|
|
type=int,
|
||
|
|
mandatory=True,
|
||
|
|
doc='Width of grd image')
|
||
|
|
|
||
|
|
NUMBER_OF_LINES = Component.Parameter('numberOfLines',
|
||
|
|
public_name='number of lines',
|
||
|
|
default=None,
|
||
|
|
type=int,
|
||
|
|
mandatory=True,
|
||
|
|
doc='Length of grd image')
|
||
|
|
|
||
|
|
STARTING_GROUND_RANGE = Component.Parameter('startingGroundRange',
|
||
|
|
public_name='starting ground range',
|
||
|
|
default=None,
|
||
|
|
type=float,
|
||
|
|
mandatory=True,
|
||
|
|
doc='Ground range to first pixel in m')
|
||
|
|
|
||
|
|
|
||
|
|
STARTING_SLANT_RANGE = Component.Parameter('startingSlantRange',
|
||
|
|
public_name='starting slant range',
|
||
|
|
default = None,
|
||
|
|
type = float,
|
||
|
|
mandatory = True,
|
||
|
|
doc = 'Slant range to first pixel in m')
|
||
|
|
|
||
|
|
ENDING_SLANT_RANGE = Component.Parameter('endingSlantRange',
|
||
|
|
public_name='ending slant range',
|
||
|
|
default=None,
|
||
|
|
type=float,
|
||
|
|
mandatory=True,
|
||
|
|
doc = 'Slant range to last pixel in m')
|
||
|
|
|
||
|
|
SENSING_START = Component.Parameter('sensingStart',
|
||
|
|
public_name='sensing start',
|
||
|
|
default=None,
|
||
|
|
type=datetimeType,
|
||
|
|
mandatory=True,
|
||
|
|
doc='UTC time corresponding to first line of burst SLC')
|
||
|
|
|
||
|
|
SENSING_STOP = Component.Parameter('sensingStop',
|
||
|
|
public_name='sensing stop',
|
||
|
|
default=None,
|
||
|
|
type=datetimeType,
|
||
|
|
mandatory=True,
|
||
|
|
doc='UTC time corresponding to last line of burst SLC')
|
||
|
|
|
||
|
|
SOFTWARE_VERSION = Component.Parameter('softwareVersion',
|
||
|
|
public_name='software version',
|
||
|
|
default = None,
|
||
|
|
type=str,
|
||
|
|
mandatory=True,
|
||
|
|
doc = 'Software version use to generate GRD product')
|
||
|
|
|
||
|
|
TRACK_NUMBER = Component.Parameter('trackNumber',
|
||
|
|
public_name='track number',
|
||
|
|
default=None,
|
||
|
|
type=int,
|
||
|
|
mandatory=False,
|
||
|
|
doc='Track number of the acquisition')
|
||
|
|
|
||
|
|
FRAME_NUMBER = Component.Parameter('frameNumber',
|
||
|
|
public_name='frame number',
|
||
|
|
default=None,
|
||
|
|
type=int,
|
||
|
|
mandatory=False,
|
||
|
|
doc='Frame number of the acquisition')
|
||
|
|
|
||
|
|
ORBIT_NUMBER = Component.Parameter('orbitNumber',
|
||
|
|
public_name='orbit number',
|
||
|
|
default=None,
|
||
|
|
type=int,
|
||
|
|
mandatory=False,
|
||
|
|
doc='orbit number of the acquisition')
|
||
|
|
|
||
|
|
PASS_DIRECTION = Component.Parameter('passDirection',
|
||
|
|
public_name='pass direction',
|
||
|
|
default=None,
|
||
|
|
type=str,
|
||
|
|
mandatory=False,
|
||
|
|
doc='Ascending or descending pass')
|
||
|
|
|
||
|
|
LOOK_SIDE = Component.Parameter('lookSide',
|
||
|
|
public_name='look side',
|
||
|
|
default=None,
|
||
|
|
type=str,
|
||
|
|
mandatory=False,
|
||
|
|
doc='Right or left')
|
||
|
|
|
||
|
|
AZIMUTH_TIME_INTERVAL = Component.Parameter('azimuthTimeInterval',
|
||
|
|
public_name='azimuth time interval',
|
||
|
|
default = None,
|
||
|
|
type = float,
|
||
|
|
mandatory = False,
|
||
|
|
doc = 'Time interval between consecutive lines (single look)')
|
||
|
|
|
||
|
|
GROUND_RANGE_PIXEL_SIZE = Component.Parameter('groundRangePixelSize',
|
||
|
|
public_name='ground range pixel size',
|
||
|
|
default = None,
|
||
|
|
type = float,
|
||
|
|
mandatory = False,
|
||
|
|
doc = 'Ground range spacing in m between consecutive pixels')
|
||
|
|
|
||
|
|
AZIMUTH_PIXEL_SIZE = Component.Parameter('azimuthPixelSize',
|
||
|
|
public_name='azimuth pixel size',
|
||
|
|
default = None,
|
||
|
|
type = float,
|
||
|
|
mandatory = False,
|
||
|
|
doc = 'Azimuth spacing in m between consecutive lines')
|
||
|
|
|
||
|
|
RADAR_WAVELENGTH = Component.Parameter('radarWavelength',
|
||
|
|
public_name='radar wavelength',
|
||
|
|
default = None,
|
||
|
|
type = float,
|
||
|
|
mandatory = False,
|
||
|
|
doc = 'Radar wavelength in m')
|
||
|
|
|
||
|
|
POLARIZATION = Component.Parameter('polarization',
|
||
|
|
public_name='polarization',
|
||
|
|
default = None,
|
||
|
|
type=str,
|
||
|
|
mandatory = False,
|
||
|
|
doc = 'One out of HH/HV/VV/VH/RH/RV')
|
||
|
|
|
||
|
|
####List of facilities
|
||
|
|
ORBIT = Component.Facility('orbit',
|
||
|
|
public_name='orbit',
|
||
|
|
module='isceobj.Orbit.Orbit',
|
||
|
|
factory='createOrbit',
|
||
|
|
args=(),
|
||
|
|
doc = 'Orbit information')
|
||
|
|
|
||
|
|
IMAGE = Component.Facility('image',
|
||
|
|
public_name='image',
|
||
|
|
module='isceobj.Image',
|
||
|
|
factory='createImage',
|
||
|
|
args = (),
|
||
|
|
doc = 'Image on disk for beta0')
|
||
|
|
|
||
|
|
SLANT_RANGE_IMAGE = Component.Facility('slantRangeImage',
|
||
|
|
public_name='slantRangeImage',
|
||
|
|
module='isceobj.Image',
|
||
|
|
factory='createImage',
|
||
|
|
args=(),
|
||
|
|
doc='Image on disl for slant range in m')
|
||
|
|
|
||
|
|
class GRDProduct(Component):
|
||
|
|
"""A class to represent a burst SLC along a radar track"""
|
||
|
|
|
||
|
|
family = 'grdproduct'
|
||
|
|
logging_name = 'isce.grdProduct'
|
||
|
|
|
||
|
|
parameter_list = (NUMBER_OF_LINES,
|
||
|
|
NUMBER_OF_SAMPLES,
|
||
|
|
STARTING_GROUND_RANGE,
|
||
|
|
STARTING_SLANT_RANGE,
|
||
|
|
ENDING_SLANT_RANGE,
|
||
|
|
SENSING_START,
|
||
|
|
SENSING_STOP,
|
||
|
|
TRACK_NUMBER,
|
||
|
|
FRAME_NUMBER,
|
||
|
|
ORBIT_NUMBER,
|
||
|
|
PASS_DIRECTION,
|
||
|
|
LOOK_SIDE,
|
||
|
|
AZIMUTH_TIME_INTERVAL,
|
||
|
|
GROUND_RANGE_PIXEL_SIZE,
|
||
|
|
AZIMUTH_PIXEL_SIZE,
|
||
|
|
RADAR_WAVELENGTH,
|
||
|
|
POLARIZATION)
|
||
|
|
|
||
|
|
|
||
|
|
facility_list = (ORBIT,
|
||
|
|
IMAGE,
|
||
|
|
SLANT_RANGE_IMAGE)
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
def __init__(self,name=''):
|
||
|
|
super(GRDProduct, self).__init__(family=self.__class__.family, name=name)
|
||
|
|
|
||
|
|
@property
|
||
|
|
def sensingMid(self):
|
||
|
|
self.sensingStart + 0.5 * (self.sensingStop - self.sensingStart)
|
||
|
|
|
||
|
|
@property
|
||
|
|
def nearSlantRange(self):
|
||
|
|
'''
|
||
|
|
Return slant range to the first pixel.
|
||
|
|
'''
|
||
|
|
return self.startingSlantRange
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
@property
|
||
|
|
def nearGroundRange(self):
|
||
|
|
'''
|
||
|
|
Return ground range to the first pixel.
|
||
|
|
'''
|
||
|
|
|
||
|
|
return self.startingGroundRange
|
||
|
|
|
||
|
|
|
||
|
|
@property
|
||
|
|
def farSlantRange(self):
|
||
|
|
'''
|
||
|
|
Return slant range to the last pixel.
|
||
|
|
|
||
|
|
def bisection(f, a, b, rhs, TOL=1.0e-3):
|
||
|
|
c = (a+b)/2.0
|
||
|
|
while ((b-a)/2.0 > TOL):
|
||
|
|
if (f(c) == rng):
|
||
|
|
return c
|
||
|
|
elif ((f(a)-rhs) * (f(c)-rhs)) < 0:
|
||
|
|
b = c
|
||
|
|
else:
|
||
|
|
a = c
|
||
|
|
|
||
|
|
c = (a+b)/2.0
|
||
|
|
|
||
|
|
return c
|
||
|
|
|
||
|
|
if self.mapDirection == "SR2GR":
|
||
|
|
rng = self.farGroundRange()
|
||
|
|
r0 = self.nearSlantRange()
|
||
|
|
rmax = r0 + (self.numberOfSamples-1) * self.groundRangePixelSize
|
||
|
|
|
||
|
|
return max( bisection(self.mapPolynomials[0].poly, r0, rmax, rng),
|
||
|
|
bisection(self.mapPolynomials[-1].poly, r0, rmax, rng))
|
||
|
|
|
||
|
|
elif self.mapDirection == "GR2SR":
|
||
|
|
rng = self.startingGroundRange + (self.numberOfSamples-1)*self.groundRangePixelSpacing
|
||
|
|
return max( self.mapPolynomials[0].poly(rng),
|
||
|
|
self.mapPolynomials[-1].poly(rng))
|
||
|
|
else:
|
||
|
|
raise Exception('Unknown map direction: {0}'.format(self.mapDirection))
|
||
|
|
'''
|
||
|
|
return self.endingSlantRange
|
||
|
|
|
||
|
|
@property
|
||
|
|
def farGroundRange(self):
|
||
|
|
'''
|
||
|
|
Return ground range to the last pixel.
|
||
|
|
'''
|
||
|
|
|
||
|
|
return (self.startingGroundRange + (self.numberOfSamples-1) * self.groundRangePixelSize)
|
||
|
|
|
||
|
|
|
||
|
|
@property
|
||
|
|
def side(self):
|
||
|
|
if self.lookSide.upper() == 'RIGHT':
|
||
|
|
return -1
|
||
|
|
elif self.lookSide.upper() == 'LEFT':
|
||
|
|
return 1
|
||
|
|
else:
|
||
|
|
raise Exception('Look side not set')
|
||
|
|
|
||
|
|
def getBbox(self, hgtrange=[-500., 9000.]):
|
||
|
|
'''
|
||
|
|
Bounding box estimate.
|
||
|
|
'''
|
||
|
|
|
||
|
|
r0 = self.nearSlantRange
|
||
|
|
r1 = self.farSlantRange
|
||
|
|
|
||
|
|
ts = [self.sensingStart, self.sensingStop]
|
||
|
|
rngs = [r0, r1]
|
||
|
|
|
||
|
|
pos = []
|
||
|
|
for ht in hgtrange:
|
||
|
|
for tim in ts:
|
||
|
|
for rng in rngs:
|
||
|
|
llh = self.orbit.rdr2geo(tim, rng, height=ht, side = self.side)
|
||
|
|
pos.append(llh)
|
||
|
|
|
||
|
|
pos = np.array(pos)
|
||
|
|
bbox = [np.min(pos[:,0]), np.max(pos[:,0]),
|
||
|
|
np.min(pos[:,1]), np.max(pos[:,1])]
|
||
|
|
return bbox
|
||
|
|
|