diff options
| author | Johnathan Corgan <jcorgan@corganenterprises.com> | 2009-10-31 09:28:44 -0700 |
|---|---|---|
| committer | Johnathan Corgan <jcorgan@corganenterprises.com> | 2009-11-01 19:45:34 -0800 |
| commit | ae5b4ed2ce8c4a0903eea1b264da5393a179c9fe (patch) | |
| tree | 73e40e054dbc3fd063b2ce2edcb01e937c333717 /gr-noaa/README | |
| parent | edf412a8ef283d08135a1c5f9c1b4f51b771ec37 (diff) | |
gr-noaa: Switched to 'double rate BPSK' HRPT synchronization
Added hrpt_bit_sync block
Using MM clock sync at double data rate
Created file_rx_hrpt GRC app
Updated demod_rx_hrpt GRC app
Updated usrp_rx_hrpt GRC
Updated usrp_rx_hrpt_nogui app
Deleted usrp_rx_hrpt2 GRC app
Deleted hrpt_sync_fb block
Diffstat (limited to 'gr-noaa/README')
| -rw-r--r-- | gr-noaa/README | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/gr-noaa/README b/gr-noaa/README index fada3550a3..29d11f5934 100644 --- a/gr-noaa/README +++ b/gr-noaa/README @@ -15,20 +15,22 @@ HRPT minor frames into a file. The file stores a series of 11090 word, 16-bits per word corresponding to the HRPT minor frame format (only the lower 10-bits per word are significant.) -The script file by default uses USRP side A, 1698 MHz, at decimation 16. A -configuration file 'usrp_rx_hrpt.cfg' in the current working directory will -allow changing this, as well as implementing persistent storage of GUI +The script file by default uses USRP side A, 1698 MHz, at decimation 16. The +gnuradio configuration file ~/.gnuradio/config.conf, section 'usrp_rx_hrpt.cfg', +will allow changing this, as well as implementing persistent storage of GUI entered parameters from invocation to invocation. The present HRPT demodulator is only tested at decimation 16. The only other -valid decimation rates are 24 and 32, which may word but with more bit +valid decimation rates are 24 and 32, which may work but with more bit errors. No other decimation rates will work. -usrp_rx_hrpt2.py ----------------- -This GUI script uses fewer graphical displays to reduce CPU consumption on -slower machines, but otherwise operates identically to userp_rx_hrpt.py. +file_rx_hrpt.py +--------------- + +This GUI script operates like usrp_rx_hrpt.py, but reads from a pre-captured +data file supplied by -F on the command line. + usrp_rx_hrpt_nogui.py --------------------- @@ -37,6 +39,7 @@ This non-GUI script operates without a display and requires that all parameters be set in the configuration file prior to running. It has no command-line parameters, and works identically to the GUI scripts. + demod_hrpt_file.py ------------------ @@ -53,11 +56,11 @@ Options: Set Decimation [default=16] -p PLL_ALPHA, --pll-alpha=PLL_ALPHA Set pll_alpha [default=50m] - -s SYNC_ALPHA, --sync-alpha=SYNC_ALPHA - Set sync_alpha [default=50m] - -F FILENAME, --filename=FILENAME + -s CLOCK_ALPHA, --clock-alpha=CLOCK_ALPHA + Set clock_alpha [default=50m] + -F INPUT_FILENAME, --input-filename=INPUT_FILENAME Set Filename [default=usrp.dat] - -o OUTPUT, --output=OUTPUT + -o OUTPUT_FILENAME, --output-filename=OUTPUT_FILENAME Set Output [default=frames.dat] |