A Novel Infrared Target Simulator

A novel infrared target simulator with radiation spectrum in the range of 3μm to 5μm was developed and demonstrated. The simulator could imitate the infrared target in different sizes and different distances from observer. The spectral filter was used to filter the radiation emitted from the light source other than the spectrum in the range of 3μm to 5μm. Controlling the rotation of the field stop could imitate the target of different sizes and controlling the transmissivity of neutral density filter could realize different energy density radiation. The target movement within the field of view of infrared seeker was simulated by rotating the direction mirror. The test result shows that the infrared target simulator can simulate the infrared target with radiation spectrum in the range of 3μm to 5μm and satisfy the needs of an infrared hardware-in-the-loop simulation.