Michael Ossmann
9856452215
hackrf_sweep: eliminate -n option (num_samples)
...
The firmware has the capability to dwell on each frequency for a
configurable duration in sweep mode, but the hackrf_sweep host tool did
not behave correctly when asked to use a non-default dwell time. The
option has never worked properly, and it is not a feature anyone seems
to want.
2021-11-14 11:41:56 -07:00
Michael Ossmann
2775279fd0
hackrf_sweep: eliminate time stamp adjustment
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We previously attempted to adjust the output time stamp according to the
sample rate and placement of the samples within the USB transfer data,
but the end result was a fixed time offset with respect to the time of
USB transfer completion. We are using only those samples closest to the
end of the transfer, so it makes sense to simply use the time the USB
transfer ends and not try to correct that fixed offset.
It may be possible in the future to have a more accurate time stamp
generated in firmware, but I don't think it is worth complicating the
host code with minor time adjustments until and unless firmware-based
time stamps become available.
2021-11-14 11:20:31 -07:00
Michael Ossmann
10b7d67ea5
Merge pull request #874 from metayan/sweeprate
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hackrf_sweep: Calculate and show sweep rate for subsecond sweeps
2021-04-23 17:35:31 -06:00
Yan
7c14f876a0
hackrf_sweep: initialise sweep_rate
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Thanks to dmaltsiniotis for spotting this.
2021-04-10 13:47:33 +02:00
Yan
90acbcff07
hackrf_sweep: Calculate and show sweep rate for subsecond sweeps
2021-04-08 22:46:42 +02:00
Demetri Maltsiniotis
e664321cc6
Adding call to _setmode for Windows only to specify binary stdout output piping.
2021-04-07 15:11:44 -05:00
Yan
ab4498f8ac
hackrf_sweep: exit early from rx_callback if do_exit set
...
Sometimes, if a small frequency interval is scanned, the callback is
triggered even though we already have the number of sweeps we want, and
sweep_count gets increased, showing the wrong "Total sweeps".
2021-03-20 10:07:51 +01:00
Yan
4c46fc74b3
hackrf_sweep: speed up ending by removing unnecessary code
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hackrf_stop_rx() is handled in hackrf_close(), so there seems to be no need
to call it separately. Furthermore, if hackrf_stop() is called separately,
it causes hackrf_close() to take more than half a second longer.
2021-03-19 16:31:37 +01:00
Yan
2ef7995763
hackrf_sweep: flush output earlier
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Gives listener access to complete data faster.
Otherwise the data might be delayed until the whole closing procedure is done.
2021-03-19 16:29:21 +01:00
Mike Walters
5361b3a7f4
hackrf_sweep: switch main loop timing back to 1Hz
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fixes #850
fixes #851
2021-03-18 19:48:53 +00:00
Michael Ossmann
2ca991e1df
Flush output streams. Do not fclose stdout/stdin.
2021-01-27 12:12:45 -07:00
Michael Ossmann
a6fa7876cb
Give descriptive names to streams.
...
They were previously given the confusing name of fd even though they are
not file descriptors.
2021-01-27 11:59:29 -07:00
Michael Ossmann
8fead43cf2
Merge pull request #748 from ggatis/patch-1
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Update hackrf_sweep.c
2021-01-27 11:38:45 -07:00
ggatis
38f6d4c828
Update hackrf_sweep.c
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change if ( fd != NULL ) to if ( ( fd != NULL ) && ( fd != stdout ) )
before fclose( fd );
2020-06-16 13:55:50 +03:00
Michael Ossmann
c0aed2edb7
firmware: clean up transceiver modes
2020-02-11 16:59:59 +00:00
GravesJake
c47f2b1162
Add cross-platform support for sleeping for milliseconds
2018-11-07 11:35:04 -07:00
GravesJake
39062a7a7b
Remove usleep (incompatible with Windows)
2018-11-07 11:24:13 -07:00
GravesJake
982770b25b
Add limited sweep mode
2018-11-07 10:49:49 -07:00
Dominic Spill
e384a2d2b7
Explicitly cast variables to silence Windows build warnings
2018-03-27 14:11:51 -06:00
Dominic Spill
9f0a46d818
Calculate using doubles and cast to float at the last moment
2018-03-27 10:38:03 -06:00
Dominic Spill
a1f9361f78
Wrong localtime argument type in hackrf_sweep causes crash on win 10
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Thanks jaredd
2017-12-02 20:37:37 -07:00
Morten Shearman Kirkegaard
161d8f77f4
Fixed bug in rx_callback(), where time_stamp.tv_usec was sent through modulo before time_stamp.tv_sec was updated.
2017-08-22 17:17:45 +02:00
Dominic Spill
97d3e65866
Fix misleading typo in bandwidth filter comment
2017-08-17 17:20:27 -06:00
Michael Ossmann
c7956b49b1
hackrf_sweep: report sweep rate instead of data rate
2017-02-21 12:43:59 -07:00
Michael Ossmann
9baac39962
hackrf_sweep: suppress ifft output unless requested
2017-02-21 12:19:00 -07:00
Michael Ossmann
886ba6acfb
hackrf_sweep: corrected output file descriptors in binary and ifft modes for compatibility with output file option
2017-02-20 21:43:12 -07:00
Michael Ossmann
f34cc960ff
hackrf_sweep: Added experimental Inverse FFT binary output mode.
...
In this mode, FFT output bins from multiple hops are stitched together into a
single set of bins per sweep. Each sweep is then processed with an inverse FFT
to simulate a time domain signal at a sample rate equal to the sweep bandwidth.
This wideband time domain signal is sent to the output as complex floats and
can be piped to or viewed with tools such as fosphor or inspectrum. The output
signal is discontinuous, so the time axis (e.g. in inspectrum) will be
incorrect.
2017-02-20 21:07:00 -07:00
Michael Ossmann
13e4dea446
hackrf_sweep: avoid starting RX too early
2017-02-19 11:10:30 -07:00
Michael Ossmann
378b65a598
added cast to fix tv_usec formatting on various platforms
2017-02-17 00:28:32 -07:00
Michael Ossmann
fd579445df
improved accuracy of hackrf_sweep timestamps
2017-02-16 23:22:07 -07:00
Michael Ossmann
bc49bdc344
update timestamp once per sweep
2017-02-16 17:34:38 -07:00
Michael Ossmann
d794ac0e20
output timestamps in microseconds
2017-02-16 14:47:53 -07:00
Michael Ossmann
79f95abdb3
correct discrepancy between number of samples and number of bytes in blocks of samples
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related to #346
2017-02-16 12:46:17 -07:00
Michael Ossmann
6aacfa2cc9
corrected maximum permitted number of FFT bins
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Fixes #346
2017-02-16 12:06:52 -07:00
Michael Ossmann
d7a799d6f2
report actual bin width with indicated precision instead of to the nearest Hz
2017-02-15 16:36:25 -07:00
Michael Ossmann
7cd8e5f7eb
hackrf_sweep output file support
2017-02-15 16:20:35 -07:00
Michael Ossmann
ae367880bf
_USE_MATH_DEFINES only on Windows
2017-02-15 15:03:54 -07:00
mrbubble62
e4106f5aca
Cleaned up
2017-02-15 01:01:09 -05:00
mrbubble62
63435f5616
hackrf_sweep on Windows
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added precompiled fftw-3.3.5
2017-02-14 01:43:14 -05:00
Michael Ossmann
c57066ebf8
hackrf_sweep: removed bin width from binary output because a more precise result can be computed from the number of bins in a record
2017-02-10 16:37:52 -07:00
Michael Ossmann
55e3a2087d
hackrf_sweep: fftwf_free
2017-02-09 23:52:07 -07:00
Michael Ossmann
06e24e876f
added fields to hackrf_sweep binary output
2017-02-09 18:12:29 -07:00
Michael Ossmann
e7647f62f3
fixed bug in frequency reported to binary output of hackrf_sweep
2017-02-08 17:24:05 -07:00
Michael Ossmann
03d93c1369
added one shot mode to hackrf_sweep
2017-02-08 10:46:08 -07:00
Michael Ossmann
c9c70f7adb
hackrf_sweep: don't skip more input than necessary when waiting for valid data
2017-02-08 00:42:13 -07:00
Michael Ossmann
5e6e70659b
hackrf_sweep: suppress processing and output until the first expected frequency is seen
2017-02-08 00:37:42 -07:00
Michael Ossmann
5ab315a73a
code cleanup
2017-02-07 21:11:50 -07:00
Michael Ossmann
c68aedef31
added output description to hackrf_sweep help
2017-02-07 20:25:21 -07:00
Michael Ossmann
05759ce1c8
fft bin selection in hackrf_sweep binary output, similar to text output
2017-02-07 18:02:52 -07:00
Michael Ossmann
813f540e94
fixed FFT bin reordering bug in hackrf_sweep
2017-02-07 17:48:24 -07:00
