cfft2nc
This program converts Chilbolton FFT data file, which contain
profiles of Doppler spectra, into netCDF. The data are stored as
little-endian floats and currently will only be read in correctly on
little-endian hardware (i.e. Intel-based PCs). The code library of
functions for reading FFT data is in the libcfft
directory.
Usage
cfft2nc [options] file1.fft [file2.fft ...]
The available options are:
- -reversev
- Negate the velocities in the file.
- -noprocess
- Normally the background noise is subtracted from the spectra. This
option leaves the data as it is.
- -noclean
- Normally the central few bins are interpolated over to remove the
any spike due to DC offset problems. This option leaves the central
bins as they are.
- -linear
- Normally the data are converted into a logarithmic dB scale
expressed relative to the noise level. This option causes the data to
be stored in their original linear form.
- -rangeoffset f
- Use a range offset of f metres.