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Merge pull request #49 from tejeez/master

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Improved waterfall display by @tejeez
This commit is contained in:
András Retzler 2016-10-29 19:48:09 +02:00 committed by GitHub
commit 398fcfdc0b
4 changed files with 23 additions and 8 deletions
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9
config_webrx.py
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@ -70,8 +70,11 @@ sdrhu_public_listing = False
dsp_plugin="csdr"
fft_fps=9
fft_size=4096
fft_overlap=0.3
samp_rate = 250000
fft_averages=int(round(1.0 * samp_rate / fft_size / fft_fps / (1.0 - fft_overlap)))
center_freq = 145525000
rf_gain = 5 #in dB. For an RTL-SDR, rf_gain=0 will set the tuner to auto gain mode, else it will be in manual gain mode.
ppm = 0
@ -146,9 +149,9 @@ iq_server_port = 4951 #TCP port for ncat to listen on. It will send I/Q data ove
#access_log = "~/openwebrx_access.log"
waterfall_colors = "[0x000000ff,0x2e6893ff, 0x69a5d0ff, 0x214b69ff, 0x9dc4e0ff, 0xfff775ff, 0xff8a8aff, 0xb20000ff]"
waterfall_min_level = -115 #in dB
waterfall_max_level = 0
waterfall_colors = "[0x000000ff,0x0000ffff,0x00ffffff,0x00ff00ff,0xffff00ff,0xff0000ff,0xff00ffff,0xffffffff]"
waterfall_min_level = -88 #in dB
waterfall_max_level = -20
#A guide is available to help you set these values: https://github.com/simonyiszk/openwebrx/wiki/Calibrating-waterfall-display-levels
#Warning! The settings below are very experimental.

6
htdocs/openwebrx.js
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@ -1018,7 +1018,7 @@ function canvas_mousewheel(evt)
zoom_max_level_hps=33; //Hz/pixel
zoom_levels_count=5;
zoom_levels_count=14;
function get_zoom_coeff_from_hps(hps)
{
@ -1040,8 +1040,10 @@ function mkzoomlevels()
zoom_levels=[1];
maxc=get_zoom_coeff_from_hps(zoom_max_level_hps);
if(maxc<1) return;
// logarithmic interpolation
zoom_ratio = Math.pow(maxc, 1/zoom_levels_count);
for(i=1;i<zoom_levels_count;i++)
zoom_levels.push(1+(maxc-1)*(i/(zoom_levels_count-1)));
zoom_levels.push(Math.pow(zoom_ratio, i));
}
function zoom_step(out, where, onscreen)

1
openwebrx.py
View File

@ -287,6 +287,7 @@ def spectrum_thread_function():
dsp.set_samp_rate(cfg.samp_rate)
dsp.set_fft_size(cfg.fft_size)
dsp.set_fft_fps(cfg.fft_fps)
dsp.set_fft_averages(cfg.fft_averages)
dsp.set_fft_compression(cfg.fft_compression)
dsp.set_format_conversion(cfg.format_conversion)
apply_csdr_cfg_to_dsp(dsp)

13
plugins/dsp/csdr/plugin.py
View File

@ -51,6 +51,7 @@ class dsp_plugin:
self.csdr_print_bufsizes = False
self.csdr_through = False
self.squelch_level = 0
self.fft_averages = 50
def chain(self,which):
any_chain_base="ncat -v 127.0.0.1 {nc_port} | "
@ -58,7 +59,11 @@ class dsp_plugin:
if self.csdr_through: any_chain_base+="csdr through | "
any_chain_base+=self.format_conversion+(" | " if self.format_conversion!="" else "") ##"csdr flowcontrol {flowcontrol} auto 1.5 10 | "
if which == "fft":
if self.fft_averages > 1:
fft_chain_base = any_chain_base+"csdr fft_cc {fft_size} {fft_block_size} | csdr logaveragepower_cf -70 {fft_size} {fft_averages} | csdr fft_exchange_sides_ff {fft_size}"
else:
fft_chain_base = any_chain_base+"csdr fft_cc {fft_size} {fft_block_size} | csdr logpower_cf -70 | csdr fft_exchange_sides_ff {fft_size}"
if self.fft_compression=="adpcm":
return fft_chain_base+" | csdr compress_fft_adpcm_f_u8 {fft_size}"
else:
@ -117,8 +122,12 @@ class dsp_plugin:
#to change this, restart is required
self.fft_fps=fft_fps
def set_fft_averages(self,fft_averages):
#to change this, restart is required
self.fft_averages=fft_averages
def fft_block_size(self):
return self.samp_rate/self.fft_fps
return self.samp_rate/self.fft_fps/self.fft_averages
def set_format_conversion(self,format_conversion):
self.format_conversion=format_conversion
@ -181,7 +190,7 @@ class dsp_plugin:
#run the command
command=command_base.format( bpf_pipe=self.bpf_pipe, shift_pipe=self.shift_pipe, decimation=self.decimation, \
last_decimation=self.last_decimation, fft_size=self.fft_size, fft_block_size=self.fft_block_size(), \
last_decimation=self.last_decimation, fft_size=self.fft_size, fft_block_size=self.fft_block_size(), fft_averages=self.fft_averages, \
bpf_transition_bw=float(self.bpf_transition_bw)/self.if_samp_rate(), ddc_transition_bw=self.ddc_transition_bw(), \
flowcontrol=int(self.samp_rate*2), start_bufsize=self.base_bufsize*self.decimation, nc_port=self.nc_port, \
squelch_pipe=self.squelch_pipe, smeter_pipe=self.smeter_pipe )