67 lines
2.2 KiB
Matlab
67 lines
2.2 KiB
Matlab
function R = readRadioLogs(logPath)
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arguments (Input)
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logPath (1, 1) string {isfolder(logPath)};
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end
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arguments (Output)
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R (:, 8) table;
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end
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% Extract receiving UAV ID from directory name (e.g. "uav0_..." → 0)
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[~, dirName] = fileparts(logPath);
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rxID = int32(sscanf(dirName, 'uav%d'));
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metrics = ["quality", "snr", "power", "noisefloor", "freqoffset"];
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logs = dir(logPath);
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logs = logs(endsWith({logs(:).name}, metrics + "_log.txt"));
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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), ...
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'VariableNames', ["Timestamp", "TxUAVID", "RxUAVID", "SNR", "Power", "Quality", "NoiseFloor", "FreqOffset"]);
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for ii = 1:numel(logs)
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filepath = fullfile(logs(ii).folder, logs(ii).name);
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% Determine which metric this file contains
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metric = "";
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for m = 1:numel(metrics)
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if endsWith(logs(ii).name, metrics(m) + "_log.txt")
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metric = metrics(m);
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break;
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end
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end
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fid = fopen(filepath, 'r');
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% Skip 3 lines: 2 junk (tail errors) + 1 header (tx_uav_id,value)
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for k = 1:3
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fgetl(fid);
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end
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data = textscan(fid, '[%26c] %d,%f');
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fclose(fid);
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ts = datetime(data{1}, 'InputFormat', 'yyyy-MM-dd HH:mm:ss.SSSSSS');
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txId = int32(data{2});
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val = data{3};
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n = numel(ts);
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t = table(ts, txId, repmat(rxID, n, 1), NaN(n,1), NaN(n,1), NaN(n,1), NaN(n,1), NaN(n,1), ...
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'VariableNames', ["Timestamp", "TxUAVID", "RxUAVID", "SNR", "Power", "Quality", "NoiseFloor", "FreqOffset"]);
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switch metric
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case "snr", t.SNR = val;
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case "power", t.Power = val;
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case "quality", t.Quality = val;
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case "noisefloor", t.NoiseFloor = val;
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case "freqoffset", t.FreqOffset = val;
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end
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R = [R; t]; %#ok<AGROW>
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end
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R = sortrows(R, "Timestamp");
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% Remove rows during defined guard period between TDM shifts
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R(R.TxUAVID == -1, :) = [];
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% Remove self-reception rows (TX == RX)
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R(R.TxUAVID == R.RxUAVID, :) = [];
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end |