kdee/miSim
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

added more radio metrics

Browse Source
This commit is contained in:
Kevin Dee
2026-03-09 21:21:45 -07:00
parent cdbfaebc17
commit b09f882369
5 changed files with 66 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
aerpaw/radio/CSwSNRRX.py
View File

@@ -267,6 +267,10 @@ class CSwSNRRX(gr.top_block):
'/root/Quality', num_uavs, slot_duration, guard_interval)
self.blocks_file_sink_0 = TdmTaggedFileSink(
'/root/Power', num_uavs, slot_duration, guard_interval)
self.blocks_file_sink_noisefloor = TdmTaggedFileSink(
'/root/NoiseFloor', num_uavs, slot_duration, guard_interval)
self._freqoffset_file = open('/root/FreqOffset', 'w')
self._freqoffset_file.write('tx_uav_id,value\n')
self.blocks_divide_xx_0 = blocks.divide_ff(1)
self.blocks_complex_to_real_0_0 = blocks.complex_to_real(1)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
@@ -310,6 +314,7 @@ class CSwSNRRX(gr.top_block):
self.connect((self.blocks_nlog10_ff_0_0, 0), (self.blocks_add_const_vxx_0, 0))
self.connect((self.blocks_nlog10_ff_0_0, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.blocks_nlog10_ff_0_0_0, 0), (self.blocks_sub_xx_0, 1))
self.connect((self.blocks_nlog10_ff_0_0_0, 0), (self.blocks_file_sink_noisefloor, 0))
self.connect((self.blocks_stream_to_vector_0_0, 0), (self.epy_block_0, 0))
self.connect((self.blocks_sub_xx_0, 0), (self.blocks_file_sink_0_0_0, 0))
self.connect((self.blocks_vector_to_stream_0_0, 0), (self.blocks_keep_m_in_n_0, 0))
@@ -321,6 +326,26 @@ class CSwSNRRX(gr.top_block):
self.connect((self.freq_xlating_fft_filter_ccc_0_0, 0), (self.blocks_stream_to_vector_0_0, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.blocks_multiply_xx_0, 0))
##################################################
# Frequency offset polling thread
##################################################
def _freq_offset_probe():
frame_dur = slot_duration * num_uavs
while True:
val = self.digital_fll_band_edge_cc_0_0.get_frequency()
freq_hz = val * samp_rate / (2 * math.pi)
now = time.time()
slot_time = now % frame_dur
current_slot = int(slot_time / slot_duration)
time_into_slot = slot_time - current_slot * slot_duration
tx_id = -1 if time_into_slot < guard_interval else current_slot
self._freqoffset_file.write(f'{tx_id},{freq_hz}\n')
self._freqoffset_file.flush()
time.sleep(0.01)
_freq_offset_thread = threading.Thread(target=_freq_offset_probe)
_freq_offset_thread.daemon = True
_freq_offset_thread.start()
def get_args(self):
return self.args

15
aerpaw/results/plotRadioLogs.m
View File

@@ -24,16 +24,25 @@ function [f, R] = plotRadioLogs(resultsPath)
R{ii}(bad, :) = [];
end
% Compute path loss from Power (post-processing)
% Power = 20*log10(peak_mag) - rxGain; path loss = txGain - rxGain - Power
txGain_dB = 76; % from startchannelsounderTXGRC.sh GAIN_TX
rxGain_dB = 30; % from startchannelsounderRXGRC.sh GAIN_RX
for ii = 1:numel(R)
R{ii}.PathLoss = txGain_dB - rxGain_dB - R{ii}.Power;
R{ii}.FreqOffset = R{ii}.FreqOffset / 1e6; % Hz to MHz
end
% Build legend labels and color map for up to 4 UAVs
nUAV = numel(R);
colors = lines(nUAV * nUAV);
styles = ["-o", "-s", "-^", "-d", "-v", "-p", "-h", "-<", "->", "-+", "-x", "-*"];
metricNames = ["SNR", "Power", "Quality"];
yLabels = ["SNR (dB)", "Power (dB)", "Quality"];
metricNames = ["SNR", "Power", "Quality", "PathLoss", "NoiseFloor", "FreqOffset"];
yLabels = ["SNR (dB)", "Power (dB)", "Quality", "Path Loss (dB)", "Noise Floor (dB)", "Freq Offset (MHz)"];
f = figure;
tl = tiledlayout(3, 1, 'TileSpacing', 'compact', 'Padding', 'compact');
tl = tiledlayout(numel(metricNames), 1, 'TileSpacing', 'compact', 'Padding', 'compact');
for mi = 1:numel(metricNames)
ax = nexttile(tl);

14
aerpaw/results/readRadioLogs.m
View File

@@ -4,19 +4,19 @@ function R = readRadioLogs(logPath)
end
arguments (Output)
R (:, 6) table;
R (:, 8) table;
end
% Extract receiving UAV ID from directory name (e.g. "uav0_..." → 0)
[~, dirName] = fileparts(logPath);
rxID = int32(sscanf(dirName, 'uav%d'));
metrics = ["quality", "snr", "power"];
metrics = ["quality", "snr", "power", "noisefloor", "freqoffset"];
logs = dir(logPath);
logs = logs(endsWith({logs(:).name}, metrics + "_log.txt"));
R = table(datetime.empty(0,1), zeros(0,1,'int32'), zeros(0,1,'int32'), zeros(0,1), zeros(0,1), zeros(0,1), ...
'VariableNames', ["Timestamp", "TxUAVID", "RxUAVID", "SNR", "Power", "Quality"]);
R = table(datetime.empty(0,1), zeros(0,1,'int32'), zeros(0,1,'int32'), zeros(0,1), zeros(0,1), zeros(0,1), zeros(0,1), zeros(0,1), ...
'VariableNames', ["Timestamp", "TxUAVID", "RxUAVID", "SNR", "Power", "Quality", "NoiseFloor", "FreqOffset"]);
for ii = 1:numel(logs)
filepath = fullfile(logs(ii).folder, logs(ii).name);
@@ -43,13 +43,15 @@ function R = readRadioLogs(logPath)
val = data{3};
n = numel(ts);
t = table(ts, txId, repmat(rxID, n, 1), NaN(n,1), NaN(n,1), NaN(n,1), ...
'VariableNames', ["Timestamp", "TxUAVID", "RxUAVID", "SNR", "Power", "Quality"]);
t = table(ts, txId, repmat(rxID, n, 1), NaN(n,1), NaN(n,1), NaN(n,1), NaN(n,1), NaN(n,1), ...
'VariableNames', ["Timestamp", "TxUAVID", "RxUAVID", "SNR", "Power", "Quality", "NoiseFloor", "FreqOffset"]);
switch metric
case "snr", t.SNR = val;
case "power", t.Power = val;
case "quality", t.Quality = val;
case "noisefloor", t.NoiseFloor = val;
case "freqoffset", t.FreqOffset = val;
end
R = [R; t]; %#ok<AGROW>

2
aerpaw/results/resultsAnalysis.m
View File

@@ -1,5 +1,5 @@
%% Plot AERPAW logs (trajectory, radio)
resultsPath = fullfile(matlab.project.rootProject().RootFolder, "sandbox", "t1"); % Define path to results copied from AERPAW platform
resultsPath = fullfile(matlab.project.rootProject().RootFolder, "sandbox", "t2"); % Define path to results copied from AERPAW platform
% Plot GPS logged data and scenario information (domain, objective, obstacles)
seaToGroundLevel = 110; % measured approximately from USGS national map viewer

20
aerpaw/scripts/startRadio.sh
View File

@@ -8,18 +8,32 @@ screen -S rxGRC -dm \
2>&1 | ts $TS_FORMAT \
| tee $RESULTS_DIR/$LOG_PREFIX\_radio_channelsounderrxgrc_log.txt"
screen -S power -dm bash -c "stdbuf -oL -eL tail -F /root/Power\
screen -S power -dm \
bash -c "stdbuf -oL -eL tail -F /root/Power\
2>&1 | ts $TS_FORMAT \
| tee $RESULTS_DIR/$LOG_PREFIX\_power_log.txt"
screen -S quality -dm bash -c "stdbuf -oL -eL tail -F /root/Quality\
screen -S quality -dm \
bash -c "stdbuf -oL -eL tail -F /root/Quality\
2>&1 | ts $TS_FORMAT \
| tee $RESULTS_DIR/$LOG_PREFIX\_quality_log.txt"
screen -S snr -dm bash -c "stdbuf -oL -eL tail -F /root/SNR\
screen -S snr -dm \
bash -c "stdbuf -oL -eL tail -F /root/SNR\
2>&1 | ts $TS_FORMAT \
| tee $RESULTS_DIR/$LOG_PREFIX\_snr_log.txt"
screen -S noisefloor -dm \
bash -c "stdbuf -oL -eL tail -F /root/NoiseFloor\
2>&1 | ts $TS_FORMAT \
| tee $RESULTS_DIR/$LOG_PREFIX\_noisefloor_log.txt"
screen -S freqoffset -dm \
bash -c "stdbuf -oL -eL tail -F /root/FreqOffset\
2>&1 | ts $TS_FORMAT \
| tee $RESULTS_DIR/$LOG_PREFIX\_freqoffset_log.txt"
#TX
screen -S txGRC -dm \