WERA HF Radar Software - Visualize permanent Measurements (Antennas)

Plott_WERA_USort_RCs

A second optional parameter can be used to pass the name of a configuration file. This file must be located in ~/etc e.g. ~/etc/params_oms.cfg . If no optional parameter is supplied, the configuration is read from ~/etc/params.cfg .

The measurement_file.USORT passed to Plott_WERA_USort_RCs is the starting point of a series of 128 samples data sets to be combined. The first figure gives the range-Doppler map of just the first .USORT file (128 samples). The second figure gives the result of combining it with the next coherent .USORT file (256 samples). This process is continued until four .USORT files are combined (512 samples). From this time on, the oldest .USORT file is removed from the combining process and the next one is added to keep a timeseries of 512 samples. This process is repeated until the first gap in the coherent stream of .USORT files is found.

As the data is unsorted and uncalibrated, the calibration file has to be passed in [params*.cfg], see below. If CALF_nnn is not defined, the default file /home/wera/etc/calibration.wera' is used.

Please ensure to pass the correct calibration file to Plott_WERA_USort_RCs.

Plott_WERA_USort_RCs reads all information needed on number of channels, length of timeseries, etc. from the header (first 512 bytes of data file) and the following parameters for PARAM_UV.CFG (VMS) or /home/wera/etc/params.cfg (Linux):

Values in PARAM_UV.CFG or /home/wera/etc/params.cfg: AUTO_SCALE = .TRUE. !.true. = use auto scale C Name of WERA Gain File C GAIN_NAME = '/home/wera/etc/wera_gain.dat' ! calibration file CALF_001 = '/home/wera/etc/calibration_buesum.wera'

The following box shows a typical output generated by Plott_WERA_USort_RCs:

wera@privwera4:~/Fortran/do_> Plott_WERA_USort_RCs ~/data/Buesum/2008-03-080-22-00-00_bue.USORT params_oms.cfg Plott_WERA_USort_RCs V1.0.1 Linux: *** Reading configuration from /home/wera/etc/params_oms.cfg *** Now processing /home/wera/data/Buesum/2008-03-080-22-00-00_bue.USORT nant_sort = 12 antennas Frequency = 10.7449999 MHz NSER = 128 Samples T_chirp = 0.260000 s F_bragg = 0.334428 Hz Last RC = 100 range cells RANGEresol = 1.2000 km RAN_OFF = 0.4167 RC RAN_OFF = 500 m TRUE_NORTH = 349 degrees DDS_Clock = 181.48430769 MHz MT = 1536 samples SSR = 0.000000000000 seconds *** Header: 0128 SAMPLES 20-MAR-08 22:00 UTC Buesum FMUNSO FREQUENZ 10.745MHZ *** Reading Calibration data: /home/wera/etc/calibration_buesum.wera *** Combined: NSER = 128 NANT_SORT = 12 NRAN = 100 Max signal (> range cell 4) at antenna 7 range cell 5 0.361 Hz: Antenna: Phase: Peak-1 Peak Peak+1 1 0.000 0.000 0.000 2 17.903 30.029 36.578 3 142.270 150.694 168.039 4 157.566 171.022 -173.878 5 43.513 39.541 63.688 6 -175.656 -172.336 -168.675 7 175.998 -173.119 -155.421 8 -9.098 30.899 59.426 9 77.930 80.322 98.677 10 143.220 124.280 151.125 11 159.293 156.027 -179.705 12 -164.448 -155.650 -117.526 Direct Path at range cell 2 Antenna: Phase: Peak-1 Peak Peak+1 1 0.000 0.000 0.000 2 153.311 167.154 172.383 3 -18.121 54.202 49.479 4 -160.310 -151.840 -154.203 5 15.156 8.016 0.201 6 -137.307 -152.509 -154.227 7 -33.662 -25.184 -26.134 8 136.004 150.500 149.163 9 -23.016 -21.385 -23.731 10 98.600 125.892 127.237 11 -69.721 -62.501 -62.798 12 85.887 122.454 128.448 Direct Path at range cell 3 Antenna: Phase: Peak-1 Peak Peak+1 1 0.000 0.000 0.000 2 155.052 166.652 170.564 3 -10.265 52.845 45.816 4 -161.410 -153.343 -157.246 5 0.254 7.321 -2.538 6 -154.502 -156.778 -158.748 7 -44.546 -22.930 -23.636 8 133.771 154.426 152.646 9 -44.765 -21.350 -24.229 10 97.512 129.111 129.236 11 -68.772 -60.360 -61.493 12 95.466 128.744 132.617 X Display [X], PostScript [P], GIF [G] -> x Antenna number (1..12) -> 1 Next timestep? [Y/N] -> y *** Now processing /home/wera/data/Buesum/2008-03-080-22-00-33_bue.USORT nant_sort = 12 antennas Frequency = 10.7449999 MHz NSER = 128 Samples T_chirp = 0.260000 s F_bragg = 0.334428 Hz Last RC = 100 range cells RANGEresol = 1.2000 km RAN_OFF = 0.4167 RC RAN_OFF = 500 m TRUE_NORTH = 349 degrees DDS_Clock = 181.48430769 MHz MT = 1536 samples SSR = 33.279999000000 seconds *** Header: 0128 SAMPLES 20-MAR-08 22:00 UTC Buesum FMUNSO FREQUENZ 10.745MHZ *** Reading Calibration data: /home/wera/etc/calibration_buesum.wera *** Combined: NSER = 256 NANT_SORT = 12 NRAN = 100 Max signal (> range cell 4) at antenna 9 range cell 5 0.316 Hz: Antenna: Phase: Peak-1 Peak Peak+1 1 0.000 0.000 0.000 .................................................. X Display [X], PostScript [P], GIF [G] -> g Antenna number (1..12) -> 1 GIF figure in /home/wera/data/Buesum/2008-03-080-22-00-00_bue_USORT_ant01_samp256.gif Next timestep? [Y/N] -> y *** Now processing /home/wera/data/Buesum/2008-03-080-22-01-06_bue.USORT nant_sort = 12 antennas Frequency = 10.7449999 MHz .................................................. X Display [X], PostScript [P], GIF [G] -> g Antenna number (1..12) -> 1 GIF figure in /home/wera/data/Buesum/2008-03-080-22-00-00_bue_USORT_ant01_samp384.gif Next timestep? [Y/N] -> y *** Now processing /home/wera/data/Buesum/2008-03-080-22-01-39_bue.USORT nant_sort = 12 antennas Frequency = 10.7449999 MHz .................................................. X Display [X], PostScript [P], GIF [G] -> g Antenna number (1..12) -> 1 GIF figure in /home/wera/data/Buesum/2008-03-080-22-00-00_bue_USORT_ant01_samp512.gif Next timestep? [Y/N] -> n

The output of the program gives information on:

Frequency : WERA center operating frequency NSER : Number of samples T_chirp : Duration of a chirp -> sample rate F_bragg : Bragg frequency Last RC : Last range cell number RANGEresol : Range resolution RAN_OFF : Range cell offset to compensate for cable length TRUE_NORTH : Geographical direction of the linear array SSR : Start seconds of the timeseries

A series of figures can be generated for each beam direction:
1st figure (128 samples) 2nd figure (256 samples) 3rd figure (384 samples) 4th figure (512 samples)

The dynamic range shown in the figures has a fixed reference point:
The ADC's maximum input voltage of +/-10 Volts * Gain Ramp refers to 0 dB.

Linux: Source is in Plott_WERA_USort_RCs.F Compilation and linking with '. do_plott_wera_usort_rcs.sh' Compilation and linking with '. do_X11R6_plott_wera_usort_rcs.sh' Call with > Plott_WERA_USort_RCs <measurement_file>.sort e.g.: > Plott_WERA_USort_RCs ~/data/Buesum/2008-03-080-22-00-00_bue.USORT params_oms.cfg

VMS: Source is in Plott_WERA_USort_RCs.F Compilation and linking with '@Plott_WERA_USort_RCs' Program needs to be defined as an external command to take parameters from the command line, e.g. $ Plott_WERA_USort_RCs :== $$USER1:[WERA.Fortran]Plott_WERA_USort_RCs.exe Call with $ Plott_WERA_USort_RCs <measurement_file>.USORT param_uv*.cfg e.g.: $ Plott_WERA_USort_RCs $data4:[Buesum]2008-03-080-22-00-00_bue.USORT params_oms.cfg