diff -r 000000000000 -r d56e90f31b9e system_settings/optic_input_ver8c_PollyXT_RALPH_7.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/system_settings/optic_input_ver8c_PollyXT_RALPH_7.py Thu Nov 10 16:02:34 2016 +0200 @@ -0,0 +1,142 @@ +# This Python script will be executed from within the main calc_lidar_correction_parameters_G_H_K.py +# Probably it will be better in the future to let the main script rather read a conguration file, which might improve the portability of the code within an executable. +# Due to problems I had with some two letter variables, most variables are now with at least three letters mixed small and capital. + +# Header to identify the lidar system +# Values of DO, DT, and DR etc. from fit to lamp calibrations in Leipzig (LampCalib_2_invers_c_D0=0.opj) +EID = "oh" # Earlinet station ID +LID = "POLLY_XT_RALPH LampCalib_2_invers_c_DO=0.opj ver8c-7" # Additional lidar ID (short descriptive text) +# firet fit intern (FITLN1) => DO = 0, DT fixed -0.9998, eta and DR fitted, +# => internal calib with LinPol before the receiver +print(" Lidar system :", EID, ", ", LID) + + +# --- IL Laser IL and +-Uncertainty +bL = 1. #degree of linear polarization; default 1 +RotL, dRotL, nRotL = 90, 1., 0 #alpha; rotation of laser polarization in degrees; default 0 +# --- ME Emitter and +-Uncertainty +DiE, dDiE, nDiE = 0., 0.1, 0 # Diattenuation +TiE = 1. # Unpolarized transmittance +RetE, dRetE, nRetE = 0., 180.0, 0 # Retardance in degrees +RotE, dRotE, nRotE = 0., 1.0, 0 # beta: Rotation of optical element in degrees + +# --- MO Receiver Optics including telescope +DiO, dDiO, nDiO = 0.0, 0.0022, 0 +TiO = 1.0 +RetO, dRetO, nRetO = 0., 180.0, 0 +RotO, dRotO, nRotO = 0., 0.5, 0 #gamma + +# --- PBS MT transmitting path defined with (TS,TP); and +-Uncertainty +# --- Pol.Filter +ERaT, dERaT, nERaT = 0.0001, 0.0001, 1 # Extinction ratio +RotaT, dRotaT, nRotaT = 90., 2., 0 # Rotation of the pol.-filter in degrees +DaT = (1-ERaT)/(1+ERaT) +TaT = 0.5*(1+ERaT) +# --- PBS combined with Pol.Filter +TP, dTP, nTP = 0.512175, 0.0024, 1 +TS, dTS, nTS = 1-TP, 0.02, 0 +TiT = 0.5 * (TP + TS) +DiT = (TP-TS)/(TP+TS) +RetT, dRetT, nRetT = 0., 180., 0 # Retardance in degrees + +# --- PBS MR reflecting path defined with (RS,RP); and +-Uncertainty +# --- Pol.Filter +ERaR, dERaR, nERaR = 1, 0.003, 0 +RotaR, dRotaR, nRotaR = 0., 2., 0 +DaR = (1-ERaR)/(1+ERaR) +TaR = 0.5*(1+ERaR) +# --- PBS 50/50 +RP, dRP, nRP = 1-TP, 0.02, 0 +RS, dRS, nRS = 1-TS, 0.00, 0 +RetR, dRetR, nRetR = 0., 180., 0 +TiR = 0.5 * (RP + RS) +DiR = (RP-RS)/(RP+RS) + +# --- Parallel signal detected in the transmitted channel => Y = 1, or in the reflected channel => Y = -1 +Y = -1. + +# --- Calibrator Location +LocC = 3 #location of calibrator: 1 = behind laser; 2 = behind emitter; 3 = before receiver; 4 = before PBS +# --- Calibrator Type used; defined by matrix values below +TypeC = 3 #Type of calibrator: 1 = mechanical rotator; 2 = hwp rotator (fixed retardation); 3 = linear polarizer; 4 = qwp; 5 = circular polarizer; 6 = real HWP calibration +-22.5° +# --- MC Calibrator +if TypeC == 1: #mechanical rotator + DiC, dDiC, nDiC = 0., 0., 0 + TiC = 1. + RetC, dRetC, nRetC = 0., 0., 0 + RotC, dRotC, nRotC = 0., 0.1, 1 #constant calibrator offset epsilon + # Rotation error without calibrator: if False, then epsilon = 0 for normal measurements + RotationErrorEpsilonForNormalMeasurements = True # is in general True for TypeC == 1 calibrator +elif TypeC == 2: # HWP rotator + DiC, dDiC, nDiC = 0., 0., 0 + TiC = 1. + RetC, dRetC, nRetC = 180., 0., 0 + #NOTE: use here twice the HWP-rotation-angle + RotC, dRotC, nRotC = 0.0, 0.1, 1 #constant calibrator offset epsilon + RotationErrorEpsilonForNormalMeasurements = True # is in general True for TypeC == 2 calibrator +elif TypeC == 3: # linear polarizer calibrator + DiC, dDiC, nDiC = 0.9998, 0.0001, 1 # ideal 1.0 + TiC = 0.505 # ideal 0.5 + RetC, dRetC, nRetC = 0., 0., 0 + RotC, dRotC, nRotC = 0.0, 0.1, 1 #constant calibrator offset epsilon + RotationErrorEpsilonForNormalMeasurements = False # is in general False for TypeC == 3 calibrator +elif TypeC == 4: # QWP calibrator + DiC, dDiC, nDiC = 0.0, 0., 0 # ideal 1.0 + TiC = 1.0 # ideal 0.5 + RetC, dRetC, nRetC = 90., 0., 0 + RotC, dRotC, nRotC = 0.0, 0.1, 1 #constant calibrator offset epsilon + RotationErrorEpsilonForNormalMeasurements = False # is False for TypeC == 4 calibrator +elif TypeC == 6: # real half-wave plate calibration at +-22.5° => rotated_diattenuator_X22x5deg.odt + DiC, dDiC, nDiC = 0., 0., 0 + TiC = 1. + RetC, dRetC, nRetC = 180., 0., 0 + #Note: use real HWP angles here + RotC, dRotC, nRotC = 0.0, 0.1, 1 #constant calibrator offset epsilon -1.15 + RotationErrorEpsilonForNormalMeasurements = True # is in general True for TypeC == 6 calibrator +else: + print ('calibrator not implemented yet') + sys.exit() + +# --- LDRCal assumed atmospheric linear depolarization ratio during the calibration measurements (first guess) +LDRCal,dLDRCal,nLDRCal= 0.006, 0.02, 1 + +# ==================================================== +# NOTE: there is no need to change anything below. + +# --- LDRtrue for simulation of measurement => LDRsim +LDRtrue = 0.4 +LDRtrue2 = 0.004 + +# --- measured LDRm will be corrected with calculated parameters GHK +LDRmeas = 0.3 + +# --- this is just for correct transfer of the variables to the main file +RotL0, dRotL, nRotL = RotL, dRotL, nRotL +# Emitter +DiE0, dDiE, nDiE = DiE, dDiE, nDiE +RetE0, dRetE, nRetE = RetE, dRetE, nRetE +RotE0, dRotE, nRotE = RotE, dRotE, nRotE +# Receiver +DiO0, dDiO, nDiO = DiO, dDiO, nDiO +RetO0, dRetO, nRetO = RetO, dRetO, nRetO +RotO0, dRotO, nRotO = RotO, dRotO, nRotO +# Calibrator +DiC0, dDiC, nDiC = DiC, dDiC, nDiC +RetC0, dRetC, nRetC = RetC, dRetC, nRetC +RotC0, dRotC, nRotC = RotC, dRotC, nRotC +# PBS +TP0, dTP, nTP = TP, dTP, nTP +TS0, dTS, nTS = TS, dTS, nTS +RetT0, dRetT, nRetT = RetT, dRetT, nRetT + +ERaT0, dERaT, nERaT = ERaT, dERaT, nERaT +RotaT0,dRotaT,nRotaT= RotaT,dRotaT,nRotaT + +RP0, dRP, nRP = RP, dRP, nRP +RS0, dRS, nRS = RS, dRS, nRS +RetR0, dRetR, nRetR = RetR, dRetR, nRetR + +ERaR0, dERaR, nERaR = ERaR, dERaR, nERaR +RotaR0,dRotaR,nRotaR= RotaR,dRotaR,nRotaR + +LDRCal0,dLDRCal,nLDRCal=LDRCal,dLDRCal,nLDRCal \ No newline at end of file