rra/satpredictor
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

adding comments

Browse Source
This commit is contained in:
va7eex 2017-02-21 00:48:04 -08:00 committed by GitHub
parent cf0874c775
commit c09aa20ef0
1 changed files with 18 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
satschedule.py
View File

@ -5,12 +5,12 @@ import time
import datetime
ppmshift = '1'
name = sys.argv[1].upper()
input_sample_rate = '48000'
output_sample_rate = '11025'
gain = '40'
gain_lower_pass = gain
ppmshift = '1' #adjust this if you don't have a TCXO equipped RTLSDR
name = sys.argv[1].upper() #what satellite we're using
input_sample_rate = '48000' #actually the bandwidth of the audio sample we're taking from the RTLSDR
output_sample_rate = '11025' #what we downconvert to to play nicely with wxtoimg
gain = '40' #software gain
gain_lower_pass = gain #we can add more or less gain if a satellite is at a lower elevation, currently disabled
gain_lower_pass_requirement = 40
data = json.load(open('satpredict.txt'))
@ -18,8 +18,11 @@ data = json.load(open('satpredict.txt'))
af_folder = '/tmp/'
output_folder = '~/sat_output/'
wxtoimg_options = ['HVCT', 'MCIR', 'NO'] #['ZA', 'HVCT', 'therm']
#this line is depreciated, make it a zero element array to do rtl_power surveys of the downline band
wxtoimg_options = ['HVCT', 'MCIR', 'NO']
#set options for various to-bash lines
#I don't recommend touching any of these
rtl_fm_options = { '-f':data[name]['frequency'],
'-M':'fm',
'-p':ppmshift,
@ -29,13 +32,14 @@ rtl_fm_options = { '-f':data[name]['frequency'],
'-E': 'dc',
'-A': 'fast' }
rtl_power_options = { '-f':'137M:138M:4k',
rtl_power_options = { '-f':'136.9M:138.1M:4k',
'-g':gain,
'-i':'1s',
'-e':str(data[name]['duration_seconds']) + 's',
'-p':ppmshift,
'-c':'0.2' }
#I REALLY don't recommend touching these, stuff breaks without it and I can't explain why
sox_options = [ '-b16',
'-c1',
'-V1',
@ -43,6 +47,7 @@ sox_options = [ '-b16',
'-r ' + input_sample_rate,
'-t raw' ]
#depreciated
def filename(satname, part):
if(part != ''):
return satname + '_' + part + '.wav'
@ -58,12 +63,16 @@ def convert_time( unixtime ):
int(unixtime)
).strftime('%H:%M %Y-%m-%d')
#gain adjustment based on pass elevationg
if( data[name]['elevation'] < gain_lower_pass_requirement ):
gain = gain_lower_pass
#a bash line
timeoutstr = 'timeout ' + str(data[name]['duration_seconds'])
#a filename
filename = datestamp(data[name]['start_unix']) + name + '_' + str(int(data[name]['elevation']))
#I may or may not have forgotten to specify you need the heatmap.py from the rtl_power page on keenerd.
if( len(wxtoimg_options) == 0 ):
rtlpower = 'rtl_power -f 137M:138M:4k -g ' + gain + ' -i 1s -e ' + str(data[name]['duration_seconds']) + 's -p ' + ppmshift + ' -c 0.2 ' + output_folder + filename + '.csv'
@ -88,7 +97,7 @@ else:
print timeoutstr, rtlstr, af_folder + filename + '.raw'
print soxstr, af_folder + filename + '.raw', af_folder + filename + '.wav', 'rate 11025'
print 'touch -r', af_folder + filename + '.raw', af_folder + filename + '.wav'
print 'bash', 'render.sh', af_folder + filename + '.wav', data[name]['start_unix']+60 #+60 is just for wxmap to work properly
print 'bash', 'render.sh', af_folder + filename + '.wav'
f = open(name + '_sched.txt', 'w')
f.write(convert_time(data[name]['start_unix']))