Mercurial > public > atmospheric_lidar / annotate
atmospheric_lidar/raymetrics.py@24e450fdd25c (annotated)
atmospheric_lidar/raymetrics.py
Mon, 26 Feb 2018 18:47:42 +0200
- author
- Iannis <i.binietoglou@impworks.gr>
- date
- Mon, 26 Feb 2018 18:47:42 +0200
- changeset 130
- 24e450fdd25c
- parent 129
- 6f902a45b83d
- child 131
- 7225c844bdc5
- permissions
- -rw-r--r--
Improved handling of photodiodes in licel files.
| i@125 | 1 | """ Code to read Raymetrics version of Licel binary files.""" |
| i@125 | 2 | import datetime |
| i@125 | 3 | import logging |
| i@125 | 4 | |
| i@129 | 5 | import numpy as np |
| i@125 | 6 | import pytz |
| i@125 | 7 | |
| i@130 | 8 | from .licel import LicelFile, LicelLidarMeasurement, LicelChannel, PhotodiodeChannel |
| i@125 | 9 | |
| i@125 | 10 | logger = logging.getLogger(__name__) |
| i@125 | 11 | |
| i@125 | 12 | |
| i@125 | 13 | class ScanningFile(LicelFile): |
| i@129 | 14 | licel_file_header_format = ['filename', |
| i@129 | 15 | 'start_date start_time end_date end_time altitude longitude latitude zenith_angle azimuth_angle temperature pressure', |
| i@129 | 16 | # Appart from Site that is read manually |
| i@129 | 17 | 'azimuth_start azimuth_stop azimuth_step zenith_start zenith_finish zenith_step azimuth_offset', |
| i@129 | 18 | 'LS1 rate_1 LS2 rate_2 number_of_datasets', ] |
| i@129 | 19 | licel_file_channel_format = 'active analog_photon laser_used number_of_datapoints 1 HV bin_width wavelength d1 d2 d3 d4 ADCbits number_of_shots discriminator ID' |
| i@125 | 20 | |
| i@125 | 21 | def _read_rest_of_header(self, f): |
| i@125 | 22 | """ Read the rest of the header lines, after line 2. """ |
| i@125 | 23 | raw_info = {} |
| i@125 | 24 | |
| i@125 | 25 | third_line = f.readline() |
| i@125 | 26 | raw_info.update(self.match_lines(third_line, self.licel_file_header_format[2])) |
| i@125 | 27 | |
| i@125 | 28 | fourth_line = f.readline() |
| i@125 | 29 | raw_info.update(self.match_lines(fourth_line, self.licel_file_header_format[3])) |
| i@125 | 30 | return raw_info |
| i@125 | 31 | |
| i@129 | 32 | def _assign_properties(self): |
| i@129 | 33 | super(ScanningFile, self)._assign_properties() |
| i@129 | 34 | self.azimuth_angle = float(self.raw_info['altitude']) |
| i@129 | 35 | self.temperature = float(self.raw_info['temperature']) |
| i@129 | 36 | self.pressure = float(self.raw_info['pressure']) |
| i@129 | 37 | self.azimuth_start = float(self.raw_info['azimuth_start']) |
| i@129 | 38 | self.azimuth_stop = float(self.raw_info['azimuth_stop']) |
| i@129 | 39 | self.azimuth_step = float(self.raw_info['azimuth_step']) |
| i@129 | 40 | self.zenith_start = float(self.raw_info['zenith_start']) |
| i@129 | 41 | self.zenith_finish = float(self.raw_info['zenith_finish']) |
| i@129 | 42 | self.zenith_step = float(self.raw_info['zenith_step']) |
| i@129 | 43 | self.azimuth_offset = float(self.raw_info['azimuth_offset']) |
| i@129 | 44 | |
| i@129 | 45 | |
| i@129 | 46 | class ScanningChannel(LicelChannel): |
| i@129 | 47 | def __init__(self): |
| i@129 | 48 | self.azimuth_start = None |
| i@129 | 49 | self.azimuth_stop = None |
| i@129 | 50 | self.azimuth_step = None |
| i@129 | 51 | self.zenith_start = None |
| i@129 | 52 | self.zenith_finish = None |
| i@129 | 53 | self.zenith_step = None |
| i@129 | 54 | self.azimuth_offset = None |
| i@129 | 55 | super(ScanningChannel, self).__init__() |
| i@129 | 56 | |
| i@129 | 57 | |
| i@130 | 58 | class ScanningLidarMeasurement(LicelLidarMeasurement): |
| i@125 | 59 | file_class = ScanningFile |
| i@125 | 60 | channel_class = LicelChannel |
| i@130 | 61 | photodiode_class = PhotodiodeChannel |
