Target detection with a liquid-crystal-based passive Stokes polarimeter
نویسندگان
چکیده
منابع مشابه
Target detection with a liquid-crystal-based passive Stokes polarimeter.
We present an imaging system that measures the polarimetric state of the light coming from each point of a scene. This system, which determines the four components of the Stokes vector at each spatial location, is based on a liquid-crystal polarization modulator, which makes it possible to acquire four-dimensional Stokes parameter images at a standard video rate. We show that using such polarim...
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Polarized light carries information about the various physical parameters that have been acting upon it. Obtaining information on the observed object by studying the polarization of light reflected can be accomplished by several methods. The four Stokes parameters of the reflected light wave (S0, S1, S2, and S3) are generally estimated by observing the scene, with a CCD sensor, through a polari...
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Nowadays liquid-crystal variable retarders (LCVRs) are widely used in optical systems because of their capacity to provide a controlled variable optical retardance by means of an applied voltage, without the need of any moving mechanical part. Nevertheless, the main disadvantages of these components, reported by users in several papers, are the necessity of using a temperature control system fo...
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In this paper a novel method is introduced for target detection in bistatic passive radars which uses the concept of correntropy to distinguish correct targets from false detections. In proposed method the history of each cell of ambiguity function is modeled as a stochastic process. Then the stochastic processes consist the noise are differentiated from those consisting targets by constructing...
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ژورنال
عنوان ژورنال: Applied Optics
سال: 2004
ISSN: 0003-6935,1539-4522
DOI: 10.1364/ao.43.000274