1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
# This function performs an xml query on a provided xml file.
import sys
import collections
def xml_query(input_xml):
try:
import xml.etree.cElementTree as etree
except:
try:
from lxml import etree
except:
#import xml.etree.ElementTree as etree
print('Failed to load lxml.etree or xml.etree.cElementTree')
sys.exit(1)
inTree = etree.parse(input_xml)
queryList = collections.OrderedDict([
('Volume_file' , 'dummy'),
('Volume_ID' , './/adsHeader/missionDataTakeId'),
('Volume_identifier' , 'dummy'),
('Volume_set_identifier' , 'dummy'),
('Number of records in ref. file' , 'dummy'),
('SAR_PROCESSOR' , 'update_1'),
('SWATH' , './/adsHeader/swath'),
('PASS' , './/generalAnnotation/productInformation/pass'),
('IMAGE_MODE' , './/adsHeader/mode'),
('polarisation' , './/adsHeader/polarisation'),
('Product type specifier' , './/adsHeader/missionId'),
('Logical volume generating facility' , 'dummy'),
('Location and date/time of product creation' , 'dummy'),
('Number_of_lines_Swath' , './/imageAnnotation/imageInformation/numberOfLines'),
('number_of_pixels_Swath' , './/imageAnnotation/imageInformation/numberOfSamples'),
('rangePixelSpacing' , './/imageAnnotation/imageInformation/rangePixelSpacing'),
('azimuthPixelSpacing' , './/imageAnnotation/imageInformation/azimuthPixelSpacing'),
('total_Burst' , 'update_1'),
('Burst_number_index' , 'update_2'),
('RADAR_FREQUENCY (HZ)' , './/generalAnnotation/productInformation/radarFrequency'),
('Scene identification' , 'update_1'),
('Scene location' , 'update_1'),
('Sensor platform mission identifer' , './/adsHeader/missionId'),
('Scene_center_heading' , './/generalAnnotation/productInformation/platformHeading'),
('Scene_centre_latitude' , 'update_2'),
('Scene_centre_longitude' , 'update_2'),
('Radar_wavelength (m)' , 'update_1'),
('Azimuth_steering_rate (deg/s)' , './/generalAnnotation/productInformation/azimuthSteeringRate'),
('Pulse_Repetition_Frequency_raw_data(TOPSAR)' , './/generalAnnotation/downlinkInformationList/downlinkInformation/prf'),
('First_pixel_azimuth_time (UTC)' , 'update_2'),
('Pulse_Repetition_Frequency (computed, Hz)' , './/imageAnnotation/imageInformation/azimuthFrequency'),
('Azimuth_time_interval (s)' , './/imageAnnotation/imageInformation/azimuthTimeInterval'),
('Total_azimuth_band_width (Hz)' , './/imageAnnotation/processingInformation/swathProcParamsList/swathProcParams/azimuthProcessing/totalBandwidth'),
('Weighting_azimuth' , './/imageAnnotation/processingInformation/swathProcParamsList/swathProcParams/azimuthProcessing/windowType'),
('Range_time_to_first_pixel (2way) (ms)' , 'update_1'),
('Range_sampling_rate (computed, MHz)' , 'update_1'),
('Total_range_band_width (MHz)' , 'update_1'),
('Weighting_range' , './/imageAnnotation/processingInformation/swathProcParamsList/swathProcParams/rangeProcessing/windowType'),
('DC_reference_azimuth_time' , 'update_2'),
('DC_reference_range_time' , 'update_2'),
('Xtrack_f_DC_constant (Hz, early edge)' , 'update_2'),
('Xtrack_f_DC_linear (Hz/s, early edge)' , 'update_2'),
('Xtrack_f_DC_quadratic (Hz/s/s, early edge)' , 'update_2'),
('FM_reference_azimuth_time' , 'update_2'),
('FM_reference_range_time' , 'update_2'),
('FM_polynomial_constant_coeff (Hz, early edge)', 'update_2'),
('FM_polynomial_linear_coeff (Hz/s, early edge)', 'update_2'),
('FM_polynomial_quadratic_coeff (Hz/s/s, early edge)', 'update_2'),
('Datafile' , 'update_2'),
('Dataformat' , 'update_2'),
('Number_of_lines_original' , 'update_2'),
('Number_of_pixels_original' , 'update_2')
])
queryList_aux = collections.OrderedDict([
('Swath_startTime' , './/adsHeader/startTime'),
('Swath_stopTime' , './/adsHeader/stopTime'),
('imageLines' , './/swathTiming/linesPerBurst'),
('imagePixels' , './/swathTiming/samplesPerBurst'),
('firstValidSample' , './/swathTiming/burstList/burst/firstValidSample'),
('lastValidSample' , './/swathTiming/burstList/burst/lastValidSample'),
('productSpec' , './/generalHeader/referenceDocument'),
('productVolDate' , './/setup//IOCSAuxProductGenerationTimeUTC'),
('productDate' , './/generalHeader/generationTime'),
('productFacility' , './/productInfo/generationInfo/level1ProcessingFacility'),
('scenePol' , './/adsHeader/polarisation'),
('sceneMode' , './/adsHeader/mode'),
('sceneCenLine_number' , './/geolocationGrid/geolocationGridPointList/geolocationGridPoint/line'),
('sceneCenPixel_number' , './/geolocationGrid/geolocationGridPointList/geolocationGridPoint/pixel'),
('sceneCenLat' , './/geolocationGrid/geolocationGridPointList/geolocationGridPoint/latitude'),
('sceneCenLon' , './/geolocationGrid/geolocationGridPointList/geolocationGridPoint/longitude'),
('height' , './/geolocationGrid/geolocationGridPointList/geolocationGridPoint/height'),
('azimuthTime' , './/geolocationGrid/geolocationGridPointList/geolocationGridPoint/azimuthTime'),
('sceneRecords' , './/imageDataInfo/imageRaster/numberOfRows'),
('orbitABS' , './/adsHeader/absoluteOrbitNumber'),
('orbitTime' , './/generalAnnotation/orbitList/orbit/time'),
('orbitX' , './/generalAnnotation/orbitList/orbit/position/x'),
('orbitY' , './/generalAnnotation/orbitList/orbit/position/y'),
('orbitZ' , './/generalAnnotation/orbitList/orbit/position/z'),
('rangeRSR' , './/generalAnnotation/productInformation/rangeSamplingRate'),
('rangeBW' , './/imageAnnotation/processingInformation/swathProcParamsList/swathProcParams/rangeProcessing/processingBandwidth'),
('rangeTimePix' , './/imageAnnotation/imageInformation/slantRangeTime'),
('azimuthTimeStart' , './/swathTiming/burstList/burst/azimuthTime'),
('heading' , './/generalAnnotation/productInformation/platformHeading'),
('doppler_azimuth_Time' , './/dopplerCentroid/dcEstimateList/dcEstimate/azimuthTime'),
('doppler_range_Time' , './/dopplerCentroid/dcEstimateList/dcEstimate/t0'),
('dopplerCoeff' , './/dopplerCentroid/dcEstimateList/dcEstimate/dataDcPolynomial'),
('azimuthFmRate_reference_Azimuth_time' , './/generalAnnotation/azimuthFmRateList/azimuthFmRate/azimuthTime'),
('azimuthFmRate_reference_Range_time' , './/generalAnnotation/azimuthFmRateList/azimuthFmRate/t0'),
('azimuthFmRate_c0' , './/generalAnnotation/azimuthFmRateList/azimuthFmRate/c0'),
('azimuthFmRate_c1' , './/generalAnnotation/azimuthFmRateList/azimuthFmRate/c1'),
('azimuthFmRate_c2' , './/generalAnnotation/azimuthFmRateList/azimuthFmRate/c2'),
('azimuthFmRatePolynomial' , './/generalAnnotation/azimuthFmRateList/azimuthFmRate/azimuthFmRatePolynomial')
])
# Now find the variables of queryList and queryList_aux in the xml data.
for key in queryList.keys():
try:
vars()[key]
except KeyError or NameError:
vars()[key] = []
if queryList[key][0:3] == './/':
for nodes in inTree.findall(queryList[key]):
vars()[key].append(nodes.text)
dat = vars()[key]
if isinstance(dat,list):
dat = dat[0]
if isinstance(dat,(int,float)):
dat = str(dat)
queryList[key] = dat
for key in queryList_aux.keys():
try:
vars()[key]
except KeyError or NameError:
vars()[key] = []
for nodes in inTree.findall(queryList_aux[key]):
vars()[key].append(nodes.text)
queryList_aux[key] = vars()[key]
# Finally do the first update
queryList['SAR_PROCESSOR'] = 'Sentinel-' + queryList['Sensor platform mission identifer'][-2:]
queryList['total_Burst'] = str(len(queryList_aux['azimuthTimeStart']))
queryList['Scene identification'] = 'Orbit: '+ queryList_aux['orbitABS'][0]
queryList['Scene location'] = 'lat: ' + queryList_aux['sceneCenLat'][0] + ' lon:' + queryList_aux['sceneCenLon'][0]
queryList['Radar_wavelength (m)'] = "{:.9f}".format(299792458.0/float(queryList['RADAR_FREQUENCY (HZ)']))
queryList['Range_time_to_first_pixel (2way) (ms)'] = "{:.15f}".format(float(queryList_aux['rangeTimePix'][0])*1000)
queryList['Range_sampling_rate (computed, MHz)'] = "{:.9f}".format(float(queryList_aux['rangeRSR'][0])/1000000)
queryList['Total_range_band_width (MHz)'] = "{:.9f}".format(float(queryList_aux['rangeBW'][0])/1000000)
deldict = ['orbitABS','rangeBW']
for d in deldict:
queryList_aux.pop(d)
queryList['aux'] = queryList_aux
return queryList
|
