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In this paper a miniaturized, direction-sensitive signal of the photodetector contains a central frequency spatial filtering velocimeter is presented. A common f, eaual to the Droduct of the obiect velocitv in the imaae " charge coupled device has been t~sed as spatial filter for one-component velocity measurements. The characteristics of this sensor afe investigated and first application results presented.;lane v.p and 'the spatiail frequency of t h i grating R, =