2016-11-14 01:52:19 +00:00
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$ qra64_nico -h
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2016-11-06 00:53:47 +00:00
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2016-11-14 01:52:19 +00:00
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QRA64 Mode Tests
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2016, Nico Palermo - IV3NWV
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---------------------------
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Syntax: qra64 [-s<snrdb>] [-c<channel>] [-a<ap-type>] [-t<testtype>] [-h]
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Options:
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-s<snrdb> : set simulation SNR in 2500 Hz BW (default:-27.5 dB)
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-c<channel> : set channel type 0=AWGN (default) 1=Rayleigh
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-a<ap-type> : set decode type 0=NOAP 1=AUTOAP (default) 2=USERAP
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-t<testtype>: 0=simulate seq of msgs between IV3NWV and K1JT (default)
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1=simulate K1JT receiving K1JT IV3NWV JN66
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2=simulate fast-fading routines (option -c ignored)
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Options used only for fast-fading simulations:
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-b : 90% fading bandwidth in Hz [1..230 Hz] (default = 2.5 Hz)
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-m : fading model. 0=Gauss, 1=Lorentz (default = Lorentz)
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-q : qra64 submode. 0=QRA64A,... 4=QRA64E (default = QRA64A)
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-h: this help
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#############################################################################
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2016-11-27 15:50:47 +00:00
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Usage example:
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2016-11-14 01:52:19 +00:00
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2016-11-27 15:50:47 +00:00
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qra64 -c2 -t2 -a2 -b50 -m1 -q2 -s-26.0 -n50000
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2016-11-06 00:53:47 +00:00
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2016-11-27 15:50:47 +00:00
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Simulate a fast-fading channel (-c2)
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Evaluate decoder performance (-t2) with
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2016-11-06 00:53:47 +00:00
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USER_AP (-a2)
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2016-11-27 15:50:47 +00:00
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B90 = 50 Hz (-b50)
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2016-11-06 00:53:47 +00:00
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Lorentz model (-m1)
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submode QRA64C (-q2)
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2016-11-27 15:50:47 +00:00
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Input SNR = -26.0 dB (-s-26.0)
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Simulate 50000 transmissions (-n50000)
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2016-11-06 00:53:47 +00:00
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(type qra64 -h for command syntax)
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Command Output:
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2016-11-27 15:50:47 +00:00
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Input SNR = -26.0dB ap-mode=USER AP
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2016-11-06 00:53:47 +00:00
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2016-11-27 15:50:47 +00:00
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Simulating the fast-fading channel
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B90=50.00 Hz - Fading Model=Lorentz - Submode=QRA64C
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Decoder metric = Matched to fast-fading signal
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Encoding msg [K1JT IV3NWV JN66]
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50000 transmissions will be simulated
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K1JT decoder enabled for [CQ ? ?/blank]
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2016-11-06 00:53:47 +00:00
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K1JT decoder enabled for [K1JT ? ?/blank]
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K1JT decoder enabled for [? IV3NWV ?/blank]
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2016-11-27 15:50:47 +00:00
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K1JT decoder enabled for [K1JT IV3NWV ?]
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2016-11-06 00:53:47 +00:00
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K1JT decoder enabled for [K1JT IV3NWV JN66]
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K1JT decoder enabled for [CQ IV3NWV ?/b/JN66]
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2016-11-27 15:50:47 +00:00
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Now decoding with K1JT's decoder...
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5.5 %
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Undetected error with rc=6
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13.1 %
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Undetected error with rc=7
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70.8 %
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Undetected error with rc=1
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75.8 %
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Undetected error with rc=9
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88.9 %
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Undetected error with rc=6
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100.0 %
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Msgs transmitted:50000
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Msg decoded:
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rc= 0 0 with [? ? ?] AP0
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rc= 1 0 with [CQ ? ?] AP27
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rc= 2 0 with [CQ ? ] AP42
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rc= 3 145 with [CALL ? ?] AP29
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rc= 4 0 with [CALL ? ] AP44
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rc= 5 12085 with [CALL CALL ?] AP57
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rc= 6 0 with [? CALL ?] AP29
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rc= 7 0 with [? CALL ] AP44
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rc= 8 24307 with [CALL CALL G] AP72
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rc= 9 0 with [CQ CALL ?] AP55
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rc=10 0 with [CQ CALL ] AP70
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rc=11 0 with [CQ CALL G] AP70
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Total: 36537/50000 (5 undetected errors)
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Estimated SNR (average in dB) = -26.26 dB
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