| 摘要 |
optoelectronic equipment, in particular, for monitoring and identification of objects in infrared light. SUBSTANCE: thermal image column with elementary radiation intensity A-i is modulated by special purpose raster using periodic signals with frequencies , which are multiples of base frequency Ω.. Signal is received by one photodetector with frequency signal compression. Frequency selection for producing electric signals of Ui. is made using n frequency-modulated reference signals. Reference signal (n+1) whose frequency is a molteple of Ω, is used by noise analyzer to discriminate RMS noise value used by noise compensator to correct Ui.. EFFECT: increased resolving power. 4 cl, 5 dwg
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