Figure 3From: Scaling of wireless sensor network intrusion detection probability: 3D sensors, 3D intruders, and 3D environments 3D environment with sensor distributions and samples of intruder/sensors/target states. (a) 3D environment with sensors spheres centers. (b) Two heterogeneous sensors coverage spaces. (c) Two heterogeneous sensor and an intruder representation. (d) Hacked target. (e) Safe target - no intruders detected. (f) Safe target - an intruder detected.Back to article page