Laser dazzling of focal plane array cameras

Abstract

Laser countermeasures against infrared focal plane array cameras aim to saturate the full camera image. In this paper we will discuss the results of three different dazzling experiments performed with MWIR lasers and show that the obtained results are independent of the read-out mechanism of the camera and can be explained by an expression derived from the point spread function of the optics. This expression also allows us to estimate the required laser power to saturate a complete focal plane array in a camera system. Simulated Images with simulated dazzling effects based on this expression will be shown.

Dazzling effect of repetitive short pulse laser on TDI CCD camera

“…Optical saturation and temperature rise in CCD cameras induced by laser have been analyzed in the literature [5]. There are also some similar studies [6][7][8][9] on the dazzling effects of infrared cameras, which give results similar to that of CCD cameras.…”

Target detection against strong light based on gate viewing

“…street light, lawn light, automobile light, ship light) is important in security surveillance, sea search and rescue, automobile night vision, evidence gathering and so on [1][2][3] . For the traditional passive or active imaging techniques, strong light in background will disturb target detection, and even lead to failure due to the saturation of image sensors cause by glare as shown in Fig.1.…”

Use of complementary wavelength bands for laser dazzle protection

“…9,10 Regarding sensors, laser dazzling was intensively studied experimentally and theoretically by various groups. [11][12][13][14][15][16][17][18] The measurement of laser-induced damage thresholds of imaging sensors is also an important and ongoing topic. [18][19][20] Protection against laser dazzle faces the challenge that nowadays lasers are available with any wavelength in the visible spectral range.…”