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\u044d\u0442\u0438\u0445 \u0441\u043b\u0443\u0447\u0430\u0435\u0432 \u043f\u043e\u043a\u0430\u0437\u0430\u043d\u043e, \u0447\u0442\u043e \u0437\u0430 \u0441\u0447\u0435\u0442 \u0444\u0430\u043a\u0442\u043e\u0440\u0430 \u043d\u0435\u0440\u0430\u0432\u043d\u043e\u043c\u0435\u0440\u043d\u043e\u0441\u0442\u0438 \u0441\u0438\u0433\u043d\u0430\u043b \u0443\u0434\u043b\u0438\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e \u043c\u0435\u0440\u0435 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0432\u0434\u043e\u043b\u044c \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0432\u043e\u043b\u043e\u043a\u043d\u0430. \u041f\u043e\u0440\u044f\u0434\u043e\u043a \u0443\u0434\u043b\u0438\u043d\u0435\u043d\u0438\u044f \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0435\u0434\u0438\u043d\u0438\u0446 \u043f\u0438\u043a\u043e\u0441\u0435\u043a\u0443\u043d\u0434 \u043d\u0430 \u043a\u0438\u043b\u043e\u043c\u0435\u0442\u0440 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Scilab. \u041f\u043e\u043b\u0443\u0447\u0435\u043d\u044b \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0435 \u043e\u0446\u0435\u043d\u043a\u0438 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u0432 \u043c\u043e\u0434\u0435\u043b\u0435\u0439 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442\u0430 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u043e\u0442 \u0447\u0430\u0441\u0442\u043e\u0442\u044b \u0434\u043b\u044f \u043e\u043a\u043e\u043d \u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u043e\u0441\u0442\u0438 850, 1330 \u0438 1550 \u043d\u043c.<\/p>\n
\u041a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0441\u043b\u043e\u0432\u0430<\/strong>: \u0434\u0438\u0441\u043f\u0435\u0440\u0441\u0438\u044f, \u0437\u0430\u0442\u0443\u0445\u0430\u043d\u0438\u0435, \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0441\u0438\u0433\u043d\u0430\u043b, \u0441\u043f\u0435\u043a\u0442\u0440, \u043f\u0440\u0435\u043e\u0431\u0440\u0430\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0424\u0443\u0440\u044c\u0435, \u0433\u0430\u0443\u0441\u0441\u043e\u0432 \u0438\u043c\u043f\u0443\u043b\u044c\u0441, \u0438\u043c\u043f\u0443\u043b\u044c\u0441 \u041d\u0430\u0439\u043a\u0432\u0438\u0441\u0442\u0430.<\/p>\n\u0420\u043e\u0437\u0448\u0438\u0440\u0435\u043d\u0430 \u0430\u043d\u043e\u0442\u0430\u0446\u0456\u044f \u0430\u043d\u0433\u043b\u0456\u0439\u0441\u044c\u043a\u043e\u044e \u043c\u043e\u0432\u043e\u044e<\/strong><\/p>\nWithin the framework of the general problem of increasing the efficiency of fiber-optic transmission systems, the problem of estimating the influence of the non-uniformity of the attenuation coefficient on the shape and duration of an optical signal is considered. A general model of the joint influence of the dispersion factor and the unevenness factor is given. The method of processing experimental data is given. A theoretical model of the dependence of the attenuation coefficient on the wavelength was adopted as the initial data. This dependence is recalculated in the dependence of the transmission coefficient on the cyclic and angular frequency. It is shown that in local regions these dependences are approximated with great accuracy by polynomials of no higher than the third order. To obtain quantitative estimates, a narrow-frequency channel with a width of about 100 GHz is considered. As models of optical signals, the Nyquist pulse of a particular type is considered. In this case, the spectral density is assumed to be a kind of raised cosine with a small rounding coefficient. Another model under consideration is an optical signal in the form of a Gaussian pulse. For these two cases, it is shown that, due to the factor of non-uniformity, the signal is lengthened as it propagates along the optical fiber. The order of elongation is in units of picoseconds per kilometer per one nanometer of the laser emission band. These values \u200b\u200bare somewhat smaller than the values \u200b\u200bof dispersion effects. However, in calculating the regeneration areas of promising fiber-optic transmission systems, the effect of irregularity should also be taken into account. To solve problems by numerical methods, software was developed in the Scilab programming environment. Quantitative estimates of the parameters of the model of the dependence of the transfer coefficient on the frequency for the transparency windows of 850, 1330 and 1550 nm were obtained.<\/p>\n
Keywords:<\/strong> dispersion, attenuation, optical signal, spectrum, Fourier transform, Gaussian impulse, Nyquist impulse.<\/p>\nReferences<\/strong><\/p>\n\n- BigData shagaet po planete. Kolichestvo dannyh v mire udvaivaetsja kazhdye dva goda [Jelektronnyj resurs]. \u2013 Rezhim dostupa : https:\/\/rg.ru\/2013\/05\/14\/infa-site.html.<\/li>\n
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\u0417\u0410\u0412\u0418\u0421\u0418\u041c\u041e\u0421\u0422\u042c \u0414\u041b\u0418\u0422\u0415\u041b\u042c\u041d\u041e\u0421\u0422\u0418 \u0418 \u0424\u041e\u0420\u041c\u042b \u041e\u041f\u0422\u0418\u0427\u0415\u0421\u041a\u0418\u0425 \u0421\u0418\u0413\u041d\u0410\u041b\u041e\u0412 \u041e\u0422 \u041d\u0415\u0420\u0410\u0412\u041d\u041e\u041c\u0415\u0420\u041d\u041e\u0421\u0422\u0418 \u041a\u041e\u042d\u0424\u0424\u0418\u0426\u0418\u0415\u041d\u0422\u0410 \u0417\u0410\u0422\u0423\u0425\u0410\u041d\u0418\u042f DEPENDENCE OF DURATION AND FORM OF OPTICAL SIGNALS ON THE UNEQUAL ATTENUATION \u0421\u0442\u043e\u0440\u0456\u043d\u043a\u0438: 201-210. \u041d\u043e\u043c\u0435\u0440: \u21161, 2019 (269) \u0410\u0432\u0442\u043e\u0440\u0438: \u041d.\u0410. \u041e\u0414\u0415\u0413\u041e\u0412, \u0410.\u0418. \u0413\u0423\u0417\u0423\u041d \u041e\u0434\u0435\u0441\u0441\u043a\u0430\u044f \u043d\u0430\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u0430\u044f \u0430\u043a\u0430\u0434\u0435\u043c\u0438\u044f \u0441\u0432\u044f\u0437\u0438 \u0438\u043c. \u0410.\u0421. \u041f\u043e\u043f\u043e\u0432\u0430 N.A. ODEGOV, A.I. GUZUN Odessa National \u041e.S. Popov Academy of Telecommunications DOI: https:\/\/www.doi.org\/10.31891\/2307-5732-2019-269-1-201-210 \u0420\u0435\u0446\u0435\u043d\u0437\u0456\u044f\/Peer review […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[21],"tags":[],"_links":{"self":[{"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/posts\/1988"}],"collection":[{"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1988"}],"version-history":[{"count":3,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/posts\/1988\/revisions"}],"predecessor-version":[{"id":5750,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/posts\/1988\/revisions\/5750"}],"wp:attachment":[{"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}