The time in the simulation experiment under the IGC law is about 0.1 s shorter than that of the PIGC law and about 0.5 s shorter than that of the CGC law against a moving target on the ground.
The time in the simulation experiment under the IGC law is about 0.1 s shorter than that of the PIGC law, and it is about 1.4 s shorter than that of the CGC law against a maneuvering target.
In short, it is easily obtained that the states are stabilized most rapidly; both the miss distance and the impact angle can be satisfied under the IGC law, while only partial index can be satisfied under the CGC law and the PIGC law.
Chawla, "Neuro-adaptive augmented dynamic inversion based PIGC design for reactive obstacle avoidance of UAVs," in AIAA Guidance, Navigation, and Control Conference, Portland, Oregon, August 2011.