专利名称：Method for the improvement of the signal
to noise level of noisy signals, particularlyfor the mesurement of back-scatteredsignals in optical wave guides
发明人：NEUMANN, ERNST-GEORG,
PROF.DR.,HECKMANN, SIEGFRIED, DIPL.-ING.
申请号：EP82102486.6申请日：19820325公开号：EP0068078B1公开日：19850807
摘要：1. A method of improving the signal-to-noise ratio of noisy electric signalvariations, more specifically for measuring the back-scatter signal of optical wave guides,the back-scatter signal being averaged and subsequently time-expanded and thereaftertransmitted as an at least partial segment of the variation of the overall back-scattersignal variation in accordance with the desired resolution, characterized in that an
analogue storage chain (1) comprising a plurality of consecutively driven capacitive storesin accordance with the desired resolution, is used as an averaging and time-expandingmeans, and that for this averaging operation the analogue storage chain receives a sumsignal (U1 ) of the back-scatter signal (Us ) which is always present in the measuringperiod and its instantaneous memory content (U2 ) and the memory content whichconstitutes the sum signal is read destructively (erasibly).
申请人：PHILIPS KOMMUNIKATIONS INDUSTRIE AG
地址：Thurn-und-Taxis-Strasse 10 90411 Nürnberg DE
国籍：DE
代理机构：Patentanwälte Dr. Solf & Zapf
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