added minimum command spacing log parser and check

aerpaw/results/readControllerLogs.m

@@ -0,0 +1,19 @@
+function T = readControllerLogs(filepath)
+    arguments (Input)
+        filepath (1, 1) string;
+    end
+    arguments (Output)
+        T table;
+    end
+    assert(isfile(filepath), "File not found at %s", filepath);
+
+    T = readtable(filepath);
+    T.Var1 = datetime(strip(strip(append(T.Var1, " ", T.Var2), 'left', '['), 'right', ']'), "InputFormat", "yyyy-MM-dd HH:mm:ss.SSSSSS");
+    T.Var2 = [];
+    T.Var3 = strip(append(T.Var3, " ", T.Var4, " ", T.Var5, " ", T.Var6, " ", string(T.Var7), " ", T.Var8, " ", T.Var9));
+    T.Var4 = []; T.Var5 = []; T.Var6 = []; T.Var7 = []; T.Var8 = []; T.Var9 = [];
+    T.Properties.VariableNames{1} = 'timestamp';
+    T.Properties.VariableNames{2} = 'message';
+
+    T(ismissing(T.message), :) = [];
+end

aerpaw/results/readRadioLogs.m

@@ -2,7 +2,6 @@ function R = readRadioLogs(logPath)
     arguments (Input)
         logPath (1, 1) string {isfolder(logPath)};
     end
-
     arguments (Output)
         R (:, 8) table;
     end

aerpaw/results/resultsAnalysis.m

@@ -1,6 +1,23 @@
 %% Plot AERPAW logs (trajectory, radio)
 resultsPath = fullfile(matlab.project.rootProject().RootFolder, "sandbox", "two_around_wall"); % Define path to results copied from AERPAW platform
 
+% Measure intervals between issuing commands from the controller 
+% (make sure this is ~4-5 seconds at minimum to avoid overwhelming the UAV autopilot)
+r = dir(resultsPath);
+controllerPath = fullfile(r(startsWith({r.name}, 'controller_')).folder, r(startsWith({r.name}, 'controller_')).name);
+controllerPath = dir(controllerPath);
+controllerPath = fullfile(controllerPath(endsWith({controllerPath.name}, '_controller_log.txt')).folder, controllerPath(endsWith({controllerPath.name}, '_controller_log.txt')).name);
+controller = readControllerLogs(controllerPath);
+rpIdx = startsWith(controller.message, "Sent REQUEST_POSITION to client 1");
+rpTimes = controller.timestamp(rpIdx);
+dt = diff(rpTimes);
+dt.Format = "mm:ss.SSS";
+fprintf("Minimum command spacing: %2.3f seconds\n", seconds(min(dt)));
+fprintf("Maximum command spacing: %2.3f seconds\n", seconds(max(dt)));
+fprintf("Mean command spacing: %2.3f seconds\n", seconds(mean(dt)));
+fprintf("Median command spacing: %2.3f seconds\n", seconds(median(dt)));
+assert(seconds(min(dt)) > 4, "Minimum command spacing questionably short");
+
 % Plot GPS logged data and scenario information (domain, objective, obstacles)
 seaToGroundLevel = 110; % measured approximately from USGS national map viewer
 plotWholeFlight = true; % do not attempt to automatically trim initial and final positioning and landing from flight plot (buggy)