Licel Raw Data Format |
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The header lines (ASCII format) have a length of 80 characters, where the two last characters are <CRLF>. The header lines are followed by the data in binary format.
The first header line contains the filename,
- which begins with a letter.
- The next characters represent the year after 2000 (two digits),
- the month (hexadecimal, one digit),
- the day (decimal, two digits),
- the hour (decimal, two digits),
- a period (.),
- the minute (decimal, two digits),
- the seconds (decimal, two digits),
- and the first 2 decimal places of the seconds (decimal, two digits).
The second header line contains information about the system:
- measurement site (8 characters),
- measurement start time,
- measurement finish,
- the altitude above sea level (m),
- the longitude and
- the latitude.
- the zenith angle
In the third header line
- the number of laser shots of the Type 1 laser,
- the repetition rate of the Type 1 laser,
- the number of laser shots of the Type 2 laser,
- the repetition rate of the Type 2 laser
- and the number of the following data sets are given.
The header lines specific to the data sets contain:
- data set active (
1/0). Non-active data sets will not be written.
- photon counting I Analog (
1/0)
- laser type
- number of data points
- the number
1
- High voltage of the PM (V)
- bin width
- wavelength (nm) followed by a period (.)
- polarization status 0 - none p - parallel s - perpendicular
0 0 00 000
- the number of bits of the ADC
- the number of shots
- discriminator level or data range of the ADC
- device identificator
The header lines are followed by a <CRLF> and the 32 bit data sets which are
separated by a <CRLF>. The data sets can be converted to quantities with physical units by using the number of shots and additionally the number of bits and the data range in case of the analog signal. This procedure is executed e.g. in show_tmp.exe