added sensor tilting and rf sensor sim test cases

@sigmoidSensor/halfAngle.m

@@ -0,0 +1,9 @@
+function value = halfAngle(obj)
+    arguments (Input)
+        obj (1, 1) {mustBeA(obj, "sigmoidSensor")};
+    end
+    arguments (Output)
+        value (1, 1) double;
+    end
+    value = obj.alphaTilt;
+end

@sigmoidSensor/initialize.m

@@ -1,17 +1,24 @@
-function obj = initialize(obj, alphaDist, betaDist, alphaTilt, betaTilt)
+function obj = initialize(obj, alphaDist, betaDist, alphaTilt, betaTilt, tilt, azimuth)
     arguments (Input)
         obj (1, 1) {mustBeA(obj, "sigmoidSensor")}
         alphaDist (1, 1) double;
         betaDist (1, 1) double;
         alphaTilt (1, 1) double;
         betaTilt (1, 1) double;
+        tilt (1, 1) double = 0;
+        azimuth (1, 1) double = 0;
     end
     arguments (Output)
         obj (1, 1) {mustBeA(obj, "sigmoidSensor")}
     end
     
+    % Sensor performance parameters
     obj.alphaDist = alphaDist;
     obj.betaDist = betaDist;
     obj.alphaTilt = alphaTilt;
     obj.betaTilt = betaTilt;
+
+    % Sensor pointing parameters
+    obj.tilt = tilt;
+    obj.azimuth = azimuth;
 end

@sigmoidSensor/sensorPerformance.m

@@ -8,16 +8,20 @@ function value = sensorPerformance(obj, agentPos, targetPos)
         value (:, 1) double;
     end
 
-    % compute direct distance and distance projected onto the ground
-    d = vecnorm(agentPos - targetPos, 2, 2); % distance from sensor to target
-    x = vecnorm(agentPos(1:2) - targetPos(:, 1:2), 2, 2); % distance from sensor nadir to target nadir (i.e. distance ignoring height difference)
+    % Unit vectors from agent to each target
+    diffs = targetPos - agentPos;
+    d = vecnorm(diffs, 2, 2);
+    dirs = diffs ./ d;
 
-    % compute tilt angle
-    tiltAngle = (180 - atan2d(x, targetPos(:, 3) - agentPos(3))); % degrees
+    % Boresight unit vector: tilt=0 → nadir [0,0,-1]; azimuth 0=+Y, 90=+X clockwise
+    boresight = [sind(obj.tilt)*sind(obj.azimuth), sind(obj.tilt)*cosd(obj.azimuth), -cosd(obj.tilt)];
+
+    % Angular offset from boresight to each target direction
+    angularOffset = acosd(dirs * boresight');
 
     % Membership functions
     mu_d = obj.distanceMembership(d);
-    mu_t = obj.tiltMembership(tiltAngle);
+    mu_t = obj.tiltMembership(angularOffset);
 
     value = mu_d .* mu_t; % assume pan membership is always 1
 end

@sigmoidSensor/sigmoidSensor.m

@@ -12,8 +12,9 @@ classdef sigmoidSensor
     end
 
     methods (Access = public)
-        [obj]   = initialize(obj, alphaDist, betaDist, alphaTilt, betaTilt); % initialize sensor, define parameters
+        [obj]   = initialize(obj, alphaDist, betaDist, alphaTilt, betaTilt, tilt, azimuth); % initialize sensor, define parameters
         [value] = sensorPerformance(obj, agentPos, targetPos); % determine sensor performance for a given single sensor and target geometry
+        [value] = halfAngle(obj); % tilt angle (deg) at which sensor performance is halved
         [f]     = plotParameters(obj); % debug, plot sensor response as a function of distance and tilt angle
     end
     methods (Access = private)