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| author | Josh Blum <josh@joshknows.com> | 2009-08-31 18:18:22 -0700 |
|---|---|---|
| committer | Josh Blum <josh@joshknows.com> | 2009-08-31 18:18:22 -0700 |
| commit | 0c68c486ec09da471c27b6f4d658ae0ba8f861b7 (patch) | |
| tree | d77864cb2bbb8e2d099d9d2d05da2ee823c53045 /gnuradio-core/src | |
| parent | 1aa216df204197b4849581dd4f42b2e7680eb72f (diff) | |
Modified log power fft block so ref scale is peak to peak.
Tweaked fft sink autoscale routine to come up with better numbers.
Modified scope sink ac couple block to use constant tap.
The previous tap calculation would cause failure for very small sample rates.
Diffstat (limited to 'gnuradio-core/src')
| -rw-r--r-- | gnuradio-core/src/python/gnuradio/blks2impl/logpwrfft.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/logpwrfft.py b/gnuradio-core/src/python/gnuradio/blks2impl/logpwrfft.py index cf8eb1be78..7ef40be40a 100644 --- a/gnuradio-core/src/python/gnuradio/blks2impl/logpwrfft.py +++ b/gnuradio-core/src/python/gnuradio/blks2impl/logpwrfft.py @@ -55,9 +55,9 @@ class _logpwrfft_base(gr.hier_block2): c2mag = gr.complex_to_mag(fft_size) self._avg = gr.single_pole_iir_filter_ff(1.0, fft_size) self._log = gr.nlog10_ff(20, fft_size, - -10*math.log10(fft_size) # Adjust for number of bins + -20*math.log10(fft_size) # Adjust for number of bins -10*math.log10(window_power/fft_size) # Adjust for windowing loss - -20*math.log10(ref_scale/2)) # Adjust for reference scale + -20*math.log10(ref_scale/2)+3.0) # Adjust for reference scale self.connect(self, self._sd, fft, c2mag, self._avg, self._log, self) self._average = average |