Small satellite platforms with television cameras onboard became popular in recent years. Many of these devices are non-commercial and are student-built. The small budget of such a mission suggests mainly educational use. Meanwhile, high-quality pre-flight radiometric calibration of onboard equipment will significantly expand the range of remote sensing tasks performed by the mission. This article describes a method and equipment for measuring the main energy characteristics of television cameras - signal transmission function, zone characteristics, noise signal of matrix detector. The proposed equipment provides a high dynamic range with good accuracy and has a low cost.
Dual-channel opto-electronic surveillance systems which operate in visible and infrared spectrum ranges are widespread. Their analysis and design needs suitable tools. A simplified physics-mathematical model of a dual-channel optoelectronic surveillance system was developed to determine energy resolution of the system. Noise equivalent brightness difference and noise equivalent temperature difference were used to define the ability of television and thermal imaging systems to detect objects. As an example of applying the model an algorithm of spectral channel selection depending on the conditions of surveillance was developed.
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