CS256936B1 - Noise suppression circuit - Google Patents

Description

3aeBneHo: 3aaBKa: MKH4: · Abtopm: 3aHBHTenb! 31.08.83 N® 3638350 / 24-09 H04B 1/64 HC H3axcoH, Π.Η.Β.Ά. Cmhphob η AH HBTODbl

KonecHHKOB, BA 3a «Ka,

JlecHHMeHKO

Ha3B8HHe Η3θ6ρετβΗΗΗ: UiyMOIIOflABHTEJIb H3O6peTeHHe OTHOCHTCM K OOjiaCTH ΠρΗβοροΟΤροβΗΗΗ and ΗΜβΗΗΟ K 3neKTpOHHbIMcxeMaM o6mero Ha3HaqeHHH h ycTpoňcTeaM perynnpoBaHHH ycHneHHH b HacŤHocTHκ 3JieKTpoHHbiM cxeMaM cyxeHHH h / hjih paciDHpeHHH anHaMHqecKoro AHanasoHa rpoM-KOCTH B yCHJlHTeJIHX 3ByKOBOH qaCTOTbl, Η ΜΟΜβΤ 6bITb HCnonb3OBaHO B BblCOKO "xaqecTBeHHoň annaparype MarHHTHoň 3anncn, rpaM3an »cH h pa ^ HoBemamm,

HaBecTHo ycTpoftcTBO aBTOMaTHHecKoro KOMnpeccHpoBaHHH hjih SKcnaHAHpoea-HHB flHHaMHqecKoro / wana3oHa, κοτρροβ coflepjrarr xaHan CHrHana h Xanana ynpaB-neHHH, πρημθμ xaHan curHana BxmoqaeT b ce6a HHBepTnpyioinnň ycHnHTenb, BbixoAKoíoporo HBJIHETCH BbIXOAOM yCTpoftCTBa, ΗφΗΠί, Τρ HHMHHX HBCTOT, BbKOfl ΚΟΤΟΡΟΓΟcoefliiHeH what bxoaom HHBepTHpyiomero ycHnHTenn h pesHCTop, oahh H3 buboaobKotoporo coeflHHeH what bxoaom HHBepTHpyiomero ycHrarrenH, and KaHan ynpaBneHHHBKmóqaeT b ce6a φορΜΗροΒβτβηΒ ynpaenaiomero HanpaxeHHa (1).

L my my ony ony ony ony ony ony 6 6 6 6 6 6 6 6 ϊ 6 6 6 6 6 6 6 6 no ne yp φ yp yp yp yp yp yp yp yp yp 'HanSonee 6jih3khm no TexHHnecxofi cymHocTH κ Η3θ6ρβτβΗΗΐο nenaeTCH Mymo-nonaBHTenb, conepacamHfl onepaynoHHbiň ycHnHTenb h nacTOTHo-33βηοημμΒ α®πη-renb HanpflxeHHH, oahh βμβοα κοτορογο HBJíaeTCH bxoaom myMonoAaBHTena, pyrogen-ron - κ noAKJBůneH Bbixony onepaitHOHHoro ycHnHTena, HBnaiomerocH bmxoaom Mymo-nonaBHTenfl, and otboa nacToTHo-aaBHCHMoro flenHTena HanpaxéHHa ποακημηθη for hh-BepTHpyromeMy BXOAy onepauHOHHoro ycHnHTena, NPH 3 that nepeoe nneao nacTOTHO-3aBHCHMoro nejiHTenn nanpaxeHHH BbmonHeHo b βηαθ peaHCTopa and Βτοροε coAepMHTnapannenbHo coeAHHeHHbie well BxoAy Φηαβτρ hhmhhx nacTOT h ochobho # 256936 φκπΒτρ eepx- HHX uacTOT, and κροΜβ this, nocnep.oBaTenb »coeflHHGHHbie of p ononnnTenbBbiň φίνπ> τρβθρχηηχ qacTOT, η, ηθητηηημη ochobhomy φΗ-nbTpy βθρχηηχ nacTOT, η Φορμηροβη-rejib ynpaBjíaromero ηθπρηχθηηη, Bbixop, κοτοροτο nonKrumen co BxoflaM ynpaBJ enHHOCHOBHOTO flOnonHHTejIbllorO 4 H) HJIbTpOB ΒθρΧΗΗΧ HaCTOT, KOTOpbie ΒΜΠΟΠΗΘΗΜynpaBJíBeMbiMH qacTOTe well (2).

H3BGCTHbiňuuyMononaBHTenb o6nanaeT HeBbicoKoň>3ΦΦθκτηβηοοτβκ> rnyMO-noflaBJíHHH, oóycnoBneHHoCo 3φφβκτοΜ μοηυπηηηη ypoBHH myMa. Uenb η3ο6ρθτθηηη -yMeHbtneHHe μοαΥ-πηιχηη ypoBHH myMa. IIocTaBJíeHHaB uenb flocTnraeTCH TGM MTO b myMonoflaBUTejie, coflepxameM one-pauHOHHbiň ycujiHTenb h nacTOTHO-3aBHCHMbiň / jejiHTenb ηηπρηχθηηη, o ^ hh βμβοακοτοροΓο hbjihgtch BxoflOM myMonortaBHTejiH, flpyroň ποακιβοηθη κ Bwxofly onepaun-ΟΗΗΟΓΟ yCHJiHTejia, HBJíHioiHerocH BbixoflOM BiyMonoflaBHTejia and otboa uacTOTHo-3aBH-CHMoro flejiHTenB HanpHxeHHH noflKJiioneH κ HHBepTupyroiuGMy Bxofly onepaqHOHHoroycHJiHTenH, NPN one hundred meters nepeoe nis not HacroTHo-33bhchmofo agjihtgjih HanpnxGHHHBbinonHGHO b BHfle pG3HCTopa and BTopoe coflepacHT napajinenbuo coeftHHGHHbte noBXOfly (JttUIbTp HHXHHX H3CTOT H OCHOBHOň <J) HJIbTP BGpXHHX HaCTOT and KpOMG TOTO, nOCJJGňOBaTGJIbHO COeflHHGHHblG flOnOJIHHTGJIbHblň 4) HJIfoTP BepXHHM naCTOT, HHGHTHn-Hblfl HOPSHYMHYMGTO HanpH “CT, BblXOfl ΚΟΤΟΡΟΓΟ nOflKJBOnGH KO BXOflaM ynpaBJlGHHH OCHOBHOTO H flOnOJIHH-TGJIbHOTO φΗΠΒΤρΟΒ ΒβρΧ ΗΧ HaCTOT, KOTOpbie BbinOJlHGHbl ynpaBJÍHeMblMH ΠΟ HaCTOTe, bo BTopoe chamomile η3οτοτηο - 33βηοημογο flejiHTejin HanpnxeHHH ββθ, ηθη cyMMaTOp, BXO-flbl ΚΟΤΟΡΟΓΟ ΠΟΛΚΙΗΟΗΘΗΜ K BbIXOflaM OCHOBHOTO φϋΠΒΤρβ BGPXHHX H3CTOT Η φΗΛΒΤρ-pa HHXHHX MaCTOT COOTBGTCTBGHHOj and BbIXOfl ΠΟβΚΠΙΟΗΘΗ K OTBOfly naCTOTHO-3aBHCH " Moro flejiHTenH HanpnxeHHH, one hundred meters npn bxoa «οποιιηητθιιβηογο φΗΤΗ, τρβ βθρχηηχ NAC-ΤΟΤ nOflKJHOHGH K BbIXOfly OCHOBHOTO φΗΠΒΤρΒ BGpXHHX HaCTOT and T3KJK6 TGM MTOφορΜΗρΟΒβΤβηΒ ynpaBJIHKMUGrO HanpaaeGHHH COflepXHT nOCJieflOBaTejIbHO COeflHHeHHbieHCTOHHHK ΗΗΠρΗΧΘΗΗΗ, ynpaBJIHeMblft fleJIHTeJIb HanpHWGHHH H BblXOflHOH φΗΠΒΤΡ HHX''hhx nacTOT, napajuiejibHo Bxofly k τ k ň ň ň ň ň ň ň ň ň ň ň ň ň ň ň ň ň 3 3 3 G G G G G G G G G G G G G G G H H ΜΗ KOMnapaTop, CGJieKTOp HMHyjlbCOBΠΟ íVIHTGJIbHOCTH, sing ΒρβΜβΗΗ C nepG3anyCKOM, BblXOfl ΚΟΤΟΡΟΓΟ ΠΟβΚΠΙΟΗΘΗ KynpaBJíHiomGMy BXO / JY ynpaBJíHGMoro agjihtgjih HanpnxeHHH h nepe3 uenb noJioxHTenb-hon o6paTHoň cbh3h to ynpaBJMroineMy Bxofly cejiGKTopa HMnynbcoB well fljiHTGJibHocTHΠρΗ 3T0M MGWHy BblXOflOM aMnJIHTyflHOTO flGTGKTOpa H ynpaBJIHIOmHMH BXOflaMH pa3p "FL-ΗΟΓΟ KJIHJHa H 3JIGMGHT3 C yiipaBJIHGMblM COnpOTHBJlGHHGM BKJHOHGHbl COOTBGTCTBGHHOBTop KOMnapaTop h orpaHHHHTejib no μηηημυμυ.

Ha Φηγ. 1 npcncTaBI CTHyHyHhHyH sHeKtHHkHcxmM myMonoflaBHTejiH bPGXHMG KOMnpeCCHpOBaHHH.

Ha Φηγ. 2 nTefaTaTaTaTaTaTaTaNHaH3aItPHcnncMeMMaMonoflaBHTeIH bpexHMe 3KcnaH, HHpoBaHHH.

Ulj ^ MOnOflaBHTGJIb COflepXHT OnepaiJHOHHblň yCHJIHTeJIh 1 HaCTOTHO-3aBHCHMbrií fleJIH-Tejib 2 HanpnxeHHH, nepBoe njieno κοτοροτο BbmoJiHeHo Ha pe3HCTope 3 BTopoecoflepxHT φιυη, τρ 4 hhxhhx nacTOT, ocHoBHoň Φηπβτρ 5 bgpxhhx nacTOT h cyMMa top 6 flOnOJIHHTejlbHblň φΗΗΒΤρ 7 BGPXHHX HaCTOT Η φθρΜΗρθΒ3ΤΘΙΙΒ 8 ynpaBJlHWme-ΓΟ HanpflXGHHH, KOTOpbIH COflGpXHT aMIWHTyflHblH flGTGKTOP 9 HGpBblň H BTOpOň COM "napaTOpbl 10 H 11 CejIGKTOP 12 HMnyjlbCOB ΠΟ flJIHTGJIbHOCTH, ρβηβ 13 ΒρβΜβΗΗ cnepe3anycKOM, PENB 14 nonoxHTGjribHoň cbhsh, hctohhhk 15 HanpHxeHHH, ynpae-JIHGMbM flGJIHTGJlb 16 ΗΗΠρΗΧβΗΗΗ , BbIXOflHOH φΗ-ΠΒΤρ 7 HHXHHX HaCTOT, pa3pflflHbIHΚΠΙ0Η 18, 3JIGMGHT 19 C ynpaBJiHGMbiM COnpOTHBJlGHHGM H OTpaHHHHTGJIb 20 ΠΟ MH “HHMyMy»

IilyMonoflaBHTenb pa6oTaeT cneflywmHM o6pa3OM. 256936 B HCXOflHOM COCTOHHHH ΠρΗ.OTCyTCTBHH CHrHana paGOHHň flHana3OH 'íaCTOT PA3 "Neneh OCHOBHblM φΐ tnbTpOM-5 (φΗΓ. 1, 2) BepXHHX MaCTOT φΗ H / 4 IbTpOM HHJKHHXnacTOT Ha" Ba nořmnana3OHa, npaxTHMecKH nacTOTa pa3p; eneHHH cocTaBJíaeT 1 κΓμ.ΚοοΦΦηηηθητ nepenann b nonoce nponycxaHHH φΗηΒτρβ 4 hhjkhhx nacTOT paeeHeflHHnye, and κ of rises HT nepenauH b nonoce nponycKaHHa ochobhoto φκπΒτρβ 5BepXHHX HacTOT BbiĎpaH b n PO3 SoJibme, Tax ητο b pexHMe xoMnpeccHpoBaHHHκο3φφΗΐίΗβΗτ nepenaHH ycTpoňcTBa b nonoce nponycxaHHH ochobhoto Φηπβτρη 5BepxHHX nacTOT GyneT b N PA3 Gonbme κοοφφΗηΗβΗτβ nepenann ycT leastcTBa b no-noce nponycxaHHH φΗππτρβ 4 hhjkhhx nacTOT, ab pexHMe axcHHlHpoBaHHH b Npa3 MeHbine.

HaGpaHHoe qHcno N (~ 10) onpenenneT MaxcHManbHyio BennnHHy cJKaTHH απκ pac-mnpeHHH nnHaMHnecKoro flnana3OHa cocTaBnniomHX CHrHana, pacnonaraiomHxcH bnonoce nponycxaHHH ochobhoto φΗηητρβ 5 βθρχηηχ nacTOT h cooTBeTCTBeHHO He3aBHCHT rt ero nacroTbi cpe3a. PtaMeHeHne ΒβηπηΗΗΜ CJKaTHH ηπη pacniHpeHHH nhhA-MunecKoro nHanaaona CHrnana ocymecTBnaeTCH nmiib b nonoce aaTyxaHHH ochobho-γο φηηΒτρη 5 βθρχηηχ nacTOT npn nepecTpoňxe ero nacTOTW cpe3a, πρκ jstomoGnacTb nacTOT b κοτοροή ocymecTBnneTCH οηημθηηθ my, onpeflenaeTca Hcxofl-hon; <nonocoň nponycxaHHH ochobhoto φκπΒτρβ 5 βθρχηηχ nacTOT, xoTopan ycTa-HaBnHBaeTca nbflaneň HanpnaceHHH c ηοτοηηηκθ 15 HanpnxeHHH Ha ynpaBnnionpieBXOAbi ochobhoto 5 h nononHHTenbHoro 7 φκπΒτροΒ BepxHnx nacTOT. B pexHMe KOMnpeccnpoBaHHH CHrHan nocTynaeT Ha bxoa ycTtvcBb h cooTeeT — CTBeHHO Ha BXOflbl OCHOBHOTO 5 (φΗΓ, 1) BepxHHX HaCTOT Η φΗΠΒΤρΗ 4hhjkhhx nacTOT. C Bbixona ochobhoto 5 βθρχηηχ nacTOT cocTaBnaionpiecnrHana b nonoce nponycxaHHH φΗηΒτρθ 5 nightTynaioT on orkh H3 bxoaob cyMMa-Topa 6, and b bxoa «ononHHTenbHoro φιυ ^ τρβ 7 βθρχηηχ hsctot. C Bbixoflanepeoro φΗηητρβ 4 hhjkhhx nacToT cocTaBnmomne cnrHana b nonoce nponycxaHHHnocTynaioT Ha npyroň bxoh cyMMaTopa sixth Bbixona cyMMaTopa C 6 CHrHan, oGpaao-BaHHbin cyMMoň cocTaBnntoiiQtx BxoflHoro CHrHana, BbweneHHbix ocHOBHbw Φη ^ τρομ 5βθρχηηχ nacToT η φΗΠΒτροΜ 4 hhjkhhx nacTOT, nocTynaeT Ha onepaijHOHHMň ycHnn-tenbi 1 oXBaneHHbiň oGpaTňoň CBH3bio c Bbixona Ha BXO # nocpencTBOM pe3HCTopa 3.ÍCyMMaTop 6 MojKeT 6bjTb εμποβηθη Ha pe3HCTopax, npnneM conpoTHBneHHH sthxpe3HCTOpos paeHbí conpoTHBneHHH) peaHCTOpa 3 Gnaronapn dumb κοβΦΦηιιηθητ non-ol penanH bxojhob cyMMaTopa 6 no Bbixona myMononaBHTenn Gy ^ eT paBeH enHHHne. Πρκ nocTynneHHH Ha Bxofl xoMnpeccopa CHmana cpeflHenacTOTHbtx h bmcoko-nacToTHbtx cocTaBňHioiQHx CHrHan "ypoBeHb" κοτορωχ Htcxe nopora cpa6aTbiBaHHHBToporo xoMnapaTopa 11 aMnnHTyflHo-qacTOTHan xapaxTepHCTHxa xoMnpeccopaημθθτ nonbeM b oGnacTH bmcokhx cpeflHHX nacTOT h. Bnaronapn TaxoMy nonteMy, cocTaBnmomne CHrHana, npoxpnn qepe3 xoMnpeccop, nocTynaioT b xaHan nepenannh Nanee ηββχο # sxcnaHAepa c ycHneHHeM, oflHaxo Ha Bbixoge axcnaHnepa sthcocTaBHfliomHe ocnaGnaioTcn flo npeimero ypoBHH scneflCTBHe τογο, ίτο xapaxTepHC-thkh axcnaHflepa oGpaTHM xapaxTepHOTHxaM xoMnpeccopa. Οαηοβρθμθηηο c cocTae-nsioinHMH CHrHana ocnaGnHKJTcn H cocTaBnnionpie my xaHana nepeflann, pacnonojKeH-Hbie b τοή XE oGnacTH nacTOT, ΠρΗ nocTynneHHH Ha bxor xoMnpeccopa carHana what cpenHenacTOTHbíMH cocTaenH-khuhmh, ypoBeHb xoTopbtx npeBwmaeT nopor cpaSaTbiBaHHH BToporo xoMnapaTopa 11 h BbicoxonacTOTHbíMH cocTaBnniomHMH c ypoBHeM Hmce yxaaaHHoro nopora npoHcxonHTaaMbixaHHe pa3pHflHoro xnwna 18h paapnn NEP Hero xoHfleHcaTopa βμχοαηογοφΗπητρβ 17 hhjkhhx nacToT and cneflOBaTenbHo, CHHxeHHe HanpH »ehhh Ha ynpaBnniomHXBxoflax ochobhoto 5h nononHHTenbHoro 7 φκηΒτροΒ BepxHHX nacTOT. HacTOTa CPE 3a nocneflHHX NPH noBumaeTcn one hundred meters, HTO Bbi3biBaeT cHHJKeHHe κο3φφΗΗΗβΗΤ3 froth-hh xoMnpeccopa cpeflHHx nacTOTax Ha, Ha ocTaBnan ero HeH3MeHHbiM BbicniHxsqacTo-Tax, o6ecnenHBan τθμ cambio MaxcHManbHyio BenHHHHy cacaTHH Ha bmcokhx nacTOTax. 256936 B 3KcHaTeBwcKoqacTOTHwe cocTaBnntomHeOnHioTCH BMecTe c cocTaB-JtjnoniHMH ínyMa Kanajia nepenaqH, πρκ stom b ónon BepxHHX qacTOT ocnaGneHHeMaKCHMajibHo, mto cooTBeTCTByeT MaRCHMamnoi BennqHHe pacmupeHHH. ConpoTHBne-HHe peancTopa hìmkoctL · KOHneHcaTopa Bbixonnoro ΗΗππτρΒ 17 hhjkhhx qacTOT oirpe-flejiaioT BpeMH ycTaHOBJíeHHH CHCTeMbi πρκ noBbinieHHH ypoBHa CHrHana Ha Bxone tny-MonoflaBHTejw. C yBejlHHSHHeM ypoBHH CpeflHeqaCTOTHbK H BblCOKOqaCTOTHbIX COCTaBílHK »MHX CH-Han Bbnue nopora cpaGaTbreaHHH BToporo KOMnapaTopa 1 qacTOTa cpe3a οοηοβηογο5 h flonoJiHHTenbHoro φΗ 7, ΠΒτροΒ BepxHHX qacTOT nepecTpaHBaeTCH Bbnne rpaHHMHoňqacTOTbi paSoqero nnanasoHa. B one hundred meters cnyqae aMnnHTynHo-qacTOTHan xapaKTepnc-THKa xoMnpeccopa onpenenneTCH aMnnHTynHo-qacTOTHoň xapaKTepHCTHKoň ifcHJibTpa4 hhjkhhx qacTOT, πρπ one hundred meters κο3φφΗμΗεΗΤ nepeflaHH KOMnpeccopa b oCnacTH BepxHHXíqacTOT cTaHoBHTcn MeHbiue enHHHpbi, Tax ψγο BbicoKonacTOTHbie cocTaBnaromne CHR Han npoxo ^ and qepe3 KOMnpeccop, ocnaSnaioTCH h He neperpyataioT KaHanbi nepejaa-mh (b flaHHOM cnyqae MarHHTHyio JieHTy). Πρπ προχορκηθΗΗΗ ynoMHHyTbtx cocTaBnmo-Whx nepe3 SKcnannep ooh ycnnuBaioTCK and ncxofíHoro ypoBHH (ypoBeHb BxoneKOMnpeccopa IIa) - one hundred meters NPH ycHJiHBawTca cocTaBnaromne uiyMa nepenaqH.OflHaKO Kahane, čnaronapn ncnxoaKycTHqecKOMy οφφβκτν μηοκηροβκη γρομκημη 3ByxaMnthxhx 3th cocTaBJíaioiuHe tuyMa He npocnyuiHeaioTCH.

Takhte o6pa3OM, NPW Manbix ypoBHHx BxoflHoro cHrHajia, HecKonbxo npeBbiuiaiomeronopor cpaĎaTbiBaHHH BToporo KOMnapaTopa 11 BpeMH ycTaHOBJíeHHH ycTpoňcTBaonpenenneTCH BpeMeHeM pa3pnna KoHfleHcaTopa Bbixo ^ Horo φΗηΒτρε 17 hhjkhhx QAC-tot qepe3 pa3pHflHbtň ήπιοί 18h HMeeT MaKCHManbHyw BenHHHHy * ΠρΗ GbicTpoM YBE-nHMeHHH BxoflHoro CHrma well ypoBHH, npeBbiuiaiomero nopor orpaHHqeHHH orpaHHMH-Tenn 20 no MHHHMyMy, cHrnan nocTynaeT Ha ynpaBnnwmHH exon aneMeHTa 19 cynpaBnaeMbiM conpoTHBneHneM. H om po noc Bc 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 pe pe pe pe pe pe pe pe pe pe pe pe pe pe pe 6 on on on r r r r r r r r r r r r r r r r r r r r 20 20 20 20 20 H H H H H H H H Πρπ pa3pnne κοκηθΗ-caTopa cHHxaeTCH HanpnjKeHHe Ha Bbixóne Φορμηροβητθπη 8 ynpaBnnwmero Hanpnxe-HHH H COOTBeTCTBeHHO Ha ynpaBHHIOmHX Bxonax OCHOBHOTO 5H nononHHTenbHOrO 7φΗΠΒΤρΟΒ BepXHHX HaCTOT, ΊΤΟ Bbl3blBaeT CMeilieHHe qaCTOTbl cpe33 B o6naCTb Bepx-HHX qacTOT well Tex nop, noxious ypoBeHb cocTaBnHwiuHX CHrHana B φορΜΗροΒβτβηε 8ynpaBnnwiuero HanpnxeHHH Ha Bxone BToporo KOMnapaTopa 11 He chhshtch no Be-πηίηημ, paBHo nopory ero CpaDaTbIBaHHH. ΠρΗ cHHweHHH ypoBHH CHrHana hhjkg nopora cpa6aTbiBaHHH BToporo KOMnapaTopa11 nOCnenHHH BO3BpamaeTCH B HCXOnHOe COCTOHHHe, pa3pHnHblH ΚΠΙΟΊ p33MbIKa- .eTCH 18, 20 but orpaHHHHTenb MHHHMyMy BoaBpamaeTCH b HcxonHoe cocTOHHHe, yee- | ΠΗΊΗΒ3Η TCM Cambli ConpoTHBneHHe 3neMeHTa 19 H KOHneHCaTOp PbixonHoro φΗΠΒΤ'pa-17 hhjkhhx qacTOT 3apnxaeTCH, it ecTb πρπ yMeHbiueHHH ypoBHH BxonHoro CHrHana BO3pacTaeT BpeMH ycTaHOBneHHH, noaTOMy KpaTKOBpeMeHHbie H3MeHeHHH ypoBHH CHrHana Ha He3HaqHTenbHyio BenHHHHy and Taoce KpaTKOBpeMeHHbie HMnynbCHbienoMexH Manor ypoBHH He bhhhwt Ha H3MeHeHHe κο3φφΗηΗεκτ3 nepenaqH ycTpoňcT-h is, cnenoBaTenbHo, He πρΗΒοηπτ κ MonynnnHH ínyMa, npocnyuiHBaeMoro b oTcyT — ctbhh MacKHpywmero nonesHoro CHrHana.

Ilocne 6bicTporo yMeHbiueHHH ypoBHH none3Horo CHrHana, HacTynaiomero Bcnen3a ero yBennqeHHeM, κο3φφΗηπεΗΤ nepenaqH ycTpoňcTBa BoccTaHaBnHBaeTcn well inpewHero 3HaqeHHH, cnycTH BpeMH BoccTaHOBneHHH, κοτοροε onpenenHeTCH BpeMe-iηθμ 3apnna KOHneHcaTopa Bbixonnoro Φηπβτρη 17 hhjkhhx qacTOT. B CBH3H C S Μ ΟΡΟΓ CpaSaTbIBaHHH ΠΘΡΒΟΓΟ KOMnapaTopa 10 BblDpaHHecxonbKO HHJKe (npaKTHqecKH Ha 2 nE) nopora cpaSaTbiBaHHH BToporo KOMnapa-Topa 11

BbnnaioiUHX ero nopor cpa6aTt> iBaHHH. OflHaKO NPH stoma ecJÍH AnHTenbHoCTb HMnynb-ca c $ opMHpoBaHHoro BTopbiM κοΜΠβρβτοροΜ 11 H3 CHrHaiia, nocTynaiomero c Bbtxo-Fla AMN-nuTyflHoro Αβτβκτορβ 9, Ile npeBbímaeT nopora cenexixHH ceneKTopa 12 wt-nyjibcoB well fljiHTejibHocTH, it nocneflHHři He nponyexaeT yxa3aHHbiít HMnynbC Haβχοα foam 13 C BpeMeHH nepeaanycxoM, κοτορωΛ npeflCTeenneT coOoň MOHOCTaĎHnb-Hyio cxeMy, H3MeHHiomyio cocTOHHHe Ha Bbntone to npoTHBononoxHoe πρκ noHBjíeHHHHMnynbca Ha Bxone h BO3BpamaK> myrocH b HcxoflHoe cocTOHHHe nocne οκοηηβηηηHMnynbca, cnycTH 3anaHHoe BpeMH 3anepxxH.

CxemŠ. foam 13 BpeMeHH c nepe3anycxoM Μοχβτ 6biTb BbinonHeHa H3 nocneAosa-TejlbHO CoeflHHeHHbIX φορΜΗρΟΒβΤβηΗ nftn006pa3H0r0 HanpaxeHHH H KOMriapaTOpOB, πρκΗβΜ φορΜΗροΒβτβηΒ nHjióo6pa3Horo HanpnxeHHH Μοχβτ 6biTb o6pa3OBaH napan-JienbHO COeflHHeHHblMH HCTOHHHXOM TOK3, XOHAeHCaTOpOM -H 3aXpblTblM B HCXOflHOMCOCTOHHHH XmOHOM, ynpaBJUHOlUHft BXOA ΚΟΤΟΡΟΓΟ BBJlHeTCH BXOflOM foam BpeMeHHc nepe3anycK0M,

BonpflCTBHe βτογο foam 13 BpeMeHH c nepeaanycxoM ocTaeTCH b hcxoahom coc-tohhhh h ynpaBnsieMbiň AenHTenb 16 HanpHxeHHH oSnanaeT eonbmHM κο3ΦΦηαηθητομnepeflan, oCecnenHBaH Mano BpeMH BoccTaHoBneHHH, the onpenenneMoe BpeMeneM-pjwa KQHfleHcaTopa BbixoflHoro φιυΗ, τρβ 17 hhwhhx nacTOT. Ecnn flnHTenbHOCTb HM-nynbca, ϋφθρΜΗρθΒ3ΗΗΟΓΟ ΠβρΒΜΜ KOMnapaTOpOM 10 npeBbímaeT ΠΟρΟΓ CeneKAHHceneKTopa 12 HMnynbcoB well AnHTenbHocTH, it nocneftHHÍi nponyexaeT yxa3aHHbiftHMnynbC Ha bxoa foam 13 BpeMeHH c nepesanycKOM h oho H3Mghhst CEOE COO-HHHe, η κο3φφΗΗΗεΗΤ nepenanH ynpaBnneMoro nenHTena 16 HanpHxeHHH yMeHbmaeT-ch. IlocKonbKy foam 13 BpeMeHH c nepeaanycKOM BO3BpamaeTCH b HcxoflHoe coctoh-HHE nocne neňcTBHB βχοαηογο HMnynbca, cnycTH 3anaHHoe BpeMH aanepxKH, 6onb-tnoe BpeMH BoccTaHoBneHHH o6ecnenHBaeTCH b TeneHHe Ečer BpeMeHH aaflepxKH, Takhte o6pa3OM, npHcyTCTBHe β φορΜΗροΒθτβπε 8 ynpaenHiomero HanpHxeHHH hhsxo-nacTOTHbix cocTaBnHioiqHX cHrHana o6ecneŮHBaeT 6onbmoe BpeMH BoccTaHoBneHHHκο3φφ6Ητβ nepenanH c yMeHbmeHtfeM ypoBHH sthx coCTaBnmoapix, nocTynaiomHXBCnefl 3a hx yBenHneHHeM. B npoqecce paóoTbi niyMonoflaBHTenH no Mepe pacmnpe-hhh cnexTpa βχοαηογο cnrHana nacTOTa cpe3a οοηοβηογο 5h AononHHTenbHoro7 φκηΒτροΒ BepxHHX nacToT nepecTpaHBaeTCH b cTopoHy BepxHeň rpaHHHHoň NAC-TOTbl, B, C CBH3H ΗΘΜ ypOBeHb HH3XOHaCTOTHbK COCTaBHHKMUHX Β φορΜΗρΟΒβΤΘΠβ 8ynpaBnniotnero HanpHxeHHH cHHxaeTCH and cHman ynpaBneHHH φopMHpyeτcH H3 Bbico- Ac ac ac ac ac ac ac ac ac ac ac ac h h h h h h h h h h h h h h Tex Tex Tex Tex Tex Tex Tex Tex Tex Tex Tex Tex Tex Tex Tex Tex Tex h h h h h h h h h h. 3tooSycnaBnHBaeT Manoe BpeMH BoccTaHoBneHHH κοοφφκμΗθΗΤΗ nonflannineMonoflaBH-TenH npH yMeHbmeHHH ypoBHH BbicoXonacTOTHbix cocTaenHiomHX, HacTynawmeM Bcnen3a hx yBenHHeHHeM.

YnpaBnHiomee HanpnxeHHe Ha Bbtxone 8 ynpaBHHwmero HanpHxeHHHnoflHHHHeTCH cnenyromeMy MaTeMaTHqecxoMy BbipaxeHHio: U, = K U5 Kť (F, U2) K3 - UniJ, (1) rfle Kn - κοοφφΗΗΗθΗτ nepeflann BToporo xoMnapaTOpa 11; ^ - ix η p p H p p ep ο ep ep ep ep 7 7 7 7 7 7 7 ac 7 7 7 7 7 - 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 HB HB HB

Kg - κοΒφφΗμΗ.εΗΤ nepeflann aMnnHTyflHoro ffeTeKTOpa 9;

Unt1 - HanpHxeHHe nopora cpa6aTbmaHHH BToporo KOMnapaTopa 11. H3 BbipaxeHHH (1) 3annmeM 3HaneHHe κο3φφΗΑΗβΗτε nepenanH nononHHTenbHoroφΗΠΒΤρβ 7 BepxHHX MaCTOTI k7 (f, up

- U5K9 Κ '· υ, · Κ9 (2) 256936

Torna πρκ BbipaaceHHe (2) npHHHMaeT bha: k7 (f, u2) U ťf (3) Μ »

BhixonHoe HanpHKeHHe ochobhoto tfcmibTpa 5 eepxHnx yacTOT npencTaBHM cneny »D (MM o6pa3OM: us uex.5 K £, (F 'u2>. Rne Ufcx.j - hanpaxeHHe Ha Bxone ochobhoto φκπΒτρβ 5 BepxHHX qacTOT;

Kj (F, up - κοοφφΗΐίΗβΗτ nepenann ochobhoto (JmjibTpa 5 BepxHHX nacTOT)

Mirfa φγΗκπΗβή uacTOTbi h ynpaBjíHiomero HanpaxeHHa.nOCKOJIbKy OCHOBHoň 5H AOnonHHTenbHbjfl 7 <j> HJIbTpbI BepXHHX yaCTOT mneHTIWHM h ΗΜβιοτ onHHaKOByro aaBHCHMocTb yacTOTM cpe9a ot ynpaBjíaioinero HanpsixeHHa, KS It (F, U2) - KT (F, U2); c yyeTOM (5) h (3) BbipaxeHHe (4) πρκΜβτ βηλ: »5""ί,., Μ '' · U2> - U · / K *. 5 9 OTKyna 1 / of BX. 5 (·

Vmi) vz9 (5) (6) (7)

To yyHTbroaH, uto “K const, Torna BbipaxeHHe (7) moxho 3anncaTb b cneny» K9 meM BHne:

Uy - (K · υβχ.5) 1/2 (8)

Ha BbipaxeHHH (8) cnenyeT, HTO BbixonHoe HanpaxeHHe ocHosHoro 4 »uibTpa 5BepxHHX yacTOT nponopnHOHanbHo Kopmo KBanpaTHOMy BXonHoro HanpaxeHHn hnpn BbinoJiHeHHH ycnoBHH (5) He 3aBHCHT rt peryjiHpoBoyHoft xapaKTepHCTHKH 'Chamorro 4> 5 iuibTpa BepxHHX yacTOT (3aBHCHMocTb yacTora cpeea ynpaBnaraneroHanpaxeHHa rpm).

Hcxona H3 this, ί ο Η Η Η Η en an nen nen nen nen nen nen nen nen nen 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3,, a a a a a B B ΚΟΜΠ U5 +

(KW 112 + U.

(K · U BX. ΚΘΜΠ) "* + U. (9) rne U4 - BbixonHoe HanpHxeHue φΗΠΒΤρβ 4 hhrhhx yacTOT;

Uex k0Mn ~ Bxon «o HanpHxeHne xoMnpeccopa.

HanpaxeHHe Ha Bbixone axcnaHnepa my sanncaTb cnenywmHM o6pa3OM: 1 «ΒΜΧ. 3kc = Uex.3KC · K3kC with Uex. 3kc + β

9kC K-íkcKK®c

BxonHoe HanpHxeHHe axcnaHnepa; κο3φφκΐίΗεΗτ nepenaMH sxcnaHnepa; κοοφφΗΗΗβΗτ nepenanH onepanHOHHoro yctuiHTejia 1; κο3φφΗηΗβΗτ nepenayn nenH OTpunaTejibHOň oSpaTHoň CBH3H, paBHbiň oc US + U4

Ubi> IX 3KC (11) 256936 C BbipaxeHHa (8) oc (K Ugxs / '2 + u4)

BWX.3HC (12) \ t

and TaKxe c yneTOM τογο, hto b ÓKcnaHAepe U BX.5 ubwx. 3kc »nonyttHM:

(K · U) ”+ u4 oc

U BKX. 3KC

Torfla BbipaxeHHe (10) c .yneTOM (13) 3anmneTCH: (13)

Bnx. íkc

U ΒΧ. 3KC 7 (K - UBMx.3Kt) i | U + U4, 1 / K,

u BMx. 3KC

Torfla npH Kj - »oo nojiyuHM: (U ex. 3XC · * · U4) ^

'K

6WX. 3KC (14) (15) r ^ e K - NightTOBHHaa BejiHMHHa. ytiHTbiBaji, hto UBX 8KC “UBklx. 9> ec, BbipajceHHe (15) sannmeTca ^ bux. »Kc (Ubux · 3kc ~ U +) ž

K (16) phospholCTaBiHH 3naqHH 3 BbipaxeHtta (9), nonyHHM! π = C <K 'Ubx- ^ μπ) + U4 - U43 _ u “^ ΒΚΧ. 9KC K <Ujx, chamber (17) H3 BbipaxcHHH (4 7) cjieflyer, HTO b npouecce KOMnpeccnpoBaHna (cxaTna) ληηβ-MiwecKoro flnana3OHa cHmajia h 3KcnaHflHpÓBaHHa (pacinnpeHHa) CHrnan Ha Bwxofle3KcnaHnepa 6yfleT οοοτβθτοτβοββτβ CHmany Ha exofle xoMnpeccopá ^ 3φφβΚΤΗΒΗΟΟΤΒ CHCTeMbl DiyMOnOHHMeHHH " MaaK "ΠΟ CpaBHeHHBO C H3BeCTHbIMH 38" KjnóqaeTCH b cnepy ronjeM

CxaTHe h oBpaTHoe ewty pacmnpeHHe flHHaMHuecKoro nanasoHa ^ h-cooTBeŤCT ΒβΗΗο cHHxeHHe niyMa Kahan nepenanH ocymecTBíiaeTca b nonoce nponycKaHHaφΗΠΒτρβ BepxHHX Ηβοτοτ c ynpaBJíaeMoň HacTOToň cpe3a, xoTopaa aBTOMaTHHec-kh nepecTpaHBaeTca b aasncHMOcTH ot cneKTpa CHrnajia, HTO no3BonaeT chh3htbMOflynauiHK) Rayma κ noBbicHTb 3φφβκτΗΒΗοοτΒ myMonoHHxeHHa; nonytiHTB KBaApaTHHHyro aaBHCHMocTb BbKOflHoro. cnrHana φιυη> τρ3 BepxHHX naeroTc ynpaBJíaeMoft nacTOToň CPEA b xaHane cHrHana ot BxogHoťo, npnqeM wa ynoMa-HyTyio 3aBnctfMocTb Ile oxa3broaeT bjihhhhh perynHpoBOHHaH xapaKTepHCTHxa ynpae-πηθμογο φηπΒτρβ (aaBHCHMOCTb qacTOTw CPEA rt ynpaBnarontero HanpaxeHHa) ΗΤΟnosBOJiítno nojiynHTh xapaKTepncTHKH KOMnpeccupoBaHHH h sKcnaHflupoBaHna / iHHa-MunecKoro fluanaaoHa 6ojiee cTaSHJibHbie, He aaBHcamHe ot pa36poca napaMeTpoeynpaBJíaeMbix sneMeHTOB φπ ^ τρβ πρπ BoaneňcTBHH Ha hhx BHemHHx flecTa6iviH3H-pyioinHX φβκτοροΒ; κροΜβ τογο, nonyneHo yflBoeHne xpyTH3Hbi 3aTyxaHna b xananeynpasjieHHa cocTaBnaromHX. CHrHana, pacnonararoniHXCH HHxe Texymefl uacToTbi CPE 3a ΟβΟΗΧ ΦΗΠΒΤΡΟΒ BepXHHX HaCTOT H Takhte o6pa3OM, CHHXeHO HX ΒΗΗΗΗΗβ ΗΘnepecTpoňxy Φηπβτροβ, HTO yMeHbmaeT Monynaumo Raymi, h cneaoBaTejibHo, ποβη-maeT 3φφβκτΗΒΗοετπ myMonoHHxeHHa, πρκ one hundred meters BpeMa ycTaHoBneHna b myMononaBH-Tene HMeeT quirk BejnwHHy jinnib πρκ δοηωπΗΧ ypoBHax cHrHana. c h pacTeT ποηη-xeHHeM ypoBHa, Tax HTO KpaTKoepeMeHHbie HMnynbCHbie ποΜβχΗ ηη3κόγο ypoBHa, hjih KpaTKOBpeMeHiibie H3MeHemia Ha HeaHanHTenbHyro BejuraHHy nonesHoro curHaaaHe ΠρΗΒΟβΗΤ K H3MeHeHHffi Κ03φφΗΗΗεΗΤ3 nepeflaHH CHCTeMbJ H CJieflOBaTenbHO, κcjibnuHMOMy HSMeHeHHto ypoBHa niyMa. B myMonoflaBeTe BpeMa BoccTaHOBJiHHa H3Me- 256936 1 βποτοΛ β 3BBHCHM0CTH οτ nacTOTO οοοτηβπηιοιιιηχ CHrHajia β φορΜΗροΒβτβπθ ynpaB-jjBKiuero nanpHJKeHHH. Πρη HajiMHHH β φορΜίιροΒβτεηε ynpaBJWioinero ηηπρβμθηηη ηη3-KonacTOTHbix cocTaBjraiomHx BpeMB BoccTaHOBJíeHHH MaKCHMa.ní> Ho. Πο wepe pacmHpe-hhh cneKTpa CHriiana φκπΒτρω Bepxnnx nacTOT nepecTpaHBaioTCH, ocnaCnnH HH3XO-qacTOTHbie cocTaBjnnomHe. Β φορΜΗροΒετεΒβ ynpaBJunomero HanpHxeHHH ocTaioTCHBbicoKonacTOTHbie cocTaBjmiomHe, oOycnaBJíHBaa nepexjiKweHHe b cropoHy yMeHbme-HHH nOCTOHHHOň ΒρβΜβΗΗ BOCCTaHOBJI6HHH WTO ΠΟ3ΒΟΛΗ6Τ B npOljeCCe BOCCTaHOB "JieHHfl ΚΟΒφφΗΒΗβΗΤβ ΠερβββΜΗ ΠρΗ CHHJKeHHH ypOBHH BblCOKOHaCTOTHblX COCTaBJIHIO MNX-CHrHajia, CNE ^ ero yBejinnenHeM ywmeM 3a, yMeHbmHTb myMOBbie βοιώ> ππκη. 3totxe 3φφκτ 6y, neT HMeTb mscto npw HMnyjibCHbix noMexax Manoň flJiHTenbHocTH, htoTaxxe yMeHbiuaeT Moflynnurao ypoBHH myMa. ΦΟΡΜΥΠΛ Η3ΟΒΡΕΤΕΗΗΉ 1. UlyMonoAaBHTejib, coflepxamnň onepaiůioHHbiň ycwiHTejib η nacTOTHo-3aBHCH-

Mbini flejiHTejtb HanpnxeHHH, ohhh βμβοπ κοτοροτο BenaeTCH bxojjom myMononaBH-ŤějiH, flpyroň noflxmoMeH κ Bbixofly onepaivioHHoro ycHJiHTejiH, HBJíHKxuHňcH bmxoaommyMonoflaBHTejw and otboa HacToTHo-3aBHCHMoro fleziHTena HanpflxeHHH ποΛχηιοηβΗ κ HHBepTHpyR5meMy Bxony onepayHOHHoro ycruiHTejra, Rip 3tom nepBoe nneqo UAC-Toth "3aBHCHMOrO fleJIHTejUI HanpHKeHHB BbOTOJlHeHO B BHHG pe3HCTOpa and BTOpoecoflepwHT napajuienbHO coeflHHeHHbie well Bxofly Φηιιβτρ hhwhhx nacTOT h ocnoBHoňφΗΛΒΤρ BepXHHX M3CT0T, β ΚρΟΜβ ΤΟΓΟ, nOCJieflOBaTejIbHO COeflHHeHHbie ΛΟΠΟΠΗΗ-TGJIbHblň φΗΠΒΤΡ BepXHHX HaCTOT, HBeHTHHHblíí OCHOBHOMy ^ HJIbTpy BepXHHX HaCTOT, η φορΜΗροΒβτεύΐΈ ynpaBJunomero HanpHxeHHH, βηχοβ κοτοροΓο ποακϊβοηθη co BXonaMynpaBneHHH οοηοβηογο h flonojiHHTenbHoro Φηπητροβ βθρχηηχ nacTOT, xoTopweBbinoJiHeHbí yiipaBJíHeMbiMH no nacTOTe, oTjiHnaiomHftcH τθμ, hto, c uenb io yMeHbme-hhh MoflynHBHH ypoBHH my bo BTOpoe nis not nacToTHo-33βηοημογο flejiHTenaHanpH »ehhh ββθ / τθη cyMMaTop, bxoak κοτοροτο noflxjnoneHbí κ Bbixo / uM οοηοβηογοίφΜΠΒΤρβ ΒβρΧΗΗΧ H3CT0T Η φΚΠΒΤρβ HHXHHX HaCTOT COOTBeTCTBeHHO and non-BbtXOfl KjnoneH x oTBony ηηοτοτηο-33βηοημογο #ejiHTejiH HanpHxeHHH, one hundred meters bxoa NPH-flo nOJIHHTejIbHorO φΗΠΒΤρβ BepXHHX HaCTOT nOflKJIWqeH K BbIXOfly ΟΟΗΟΒΗΟΓΟ φΗΗΒΤρΒβθρχηηχ nacTOT 2. fflyMonoflaBHTejib well N.1 OTjmnaioiUHňCH τβΜ, ητο φορΜΗροΒβτβπΒ ynpaBJímo mero-HanpnateHHH conepxHT nocneflOBaTejibHO coeflHHeHHbie hctohhhx HanpaxeHHH,: ynpaBJíHeMbrir flejiHTenb HanpHxeHHH η βμχοήηοη Φηπβτρ hhwhhx nacTOT BXJBoneH pa3pJWHbtň kjdoh, and napajinejibHo Bbixony - aneMeHT cynpaBJíaeMbiM conpoTHBJíeHHeM, a Taxxe nocjiefloBaTenbHo coeflHHeHHbie Bxofl nepBbw xoMnapaTop, cejiexTop HMnyjihcoB well AjnrrejibHocTH, foam BpeMeHH c nepeaanycxoM, βμχολ κοτοροτο nonxjnoHeH κ ynpaBjunomeMy BxojjyynpaBJíHeMoro flejiHTejin HanpaxeHHH h nepe3 ijenb nojioxHTenbHoň οδρβτηοϋ cbhshx ynpaBjunomeMy exofly cenexTopa HMnyjibcoB well απητθιιβηοοτη NPA one hundred meters Mexnyboxorom aMnjiHTynHoro ηβτβχτορβ h ynpaBjíaromHMH βχο ^ βμη paapHflHoro XMON hsneMeHTa c ynpaBJíHeMbw conpoTHBJíeHHeM BXjnoneHbí COOTBeTCTBeHHO Βτοροή xoMna-paTOP H orpaHHHHTenb ΠΟ MIHHMyMy. HCTOHHHXH οφορΜβΙξΗΗ, ΠΡΗΗΗΤΗβ BO BHHMaHHe HpH 3ΧΟΠβρΤΗ3βί

TOTHO-3aBHCHMOMy ββπΜτβίΒο BanpHxeHHB, nebano nneno xoToporo BbtnojiHe β BHfle 256936 peSHCTopa 3, &amp; BTopoe conepxHT napajinenbHo coeflHHeHHbie well Bxofly φκπι> τρ 4 hhxhhx ttacTOT h ocHOBHoft φΗπητρ 5 BepxHnx qacTOT, noflKjnoqeHHbie κ cyMMaTopy6, BbKOfl ΚΟΤΟΡΟΓΟ ΠΟβΚηΐΟΗβΗ X OTBOfly ΗβΟΤΟΤΚθ ~ 33ΒΗΟΗΜΟΓΟ ΛβΠΗΤβΠΒ 2 ΗβΠρΗΧβ * matters, and TaxMé ποοηβηοΒΑτβη &amp; Ηο Coe «HHeHHMe oononMHTenbubiťi φκυιι, τρ 7 ΒβρχηκχHaCTOT, BXOfl ΚΟΤΟΡΟΓΟ ΠΟΑΚΠΙΟΗβΗ K BbIXOAy OCHOBHOrO φΗΠΒΤρα 5 BepXHHX HáCTOTκ opMHpoBaTenb $ 8 ynpaBJUHomero HanpHateHHH, βχοα κοτόροΓο noflKraoneH κο βχο-ΑβΜ ynpaBjíeHHH ochobhoío 5h flononHHTenbHoro 7 φκπΒτροΒ sepxHHx naeroT. Φηγ. 1. IIpH3HaHo H3o6peTeHneM after peayntTaTaM sKcnepTHaw, ocymecTBJiHHoFocyflapcT-BeHHbw ΚοΜΗΤβτοΜ CCCP no nenM Η3θ6ρβτβΗηή η οτκρΗΤΗϋ. 2 nepteaca 256936

Claims (2)

10 OBJECT OF THE INVENTION < 1, a noise suppression circuit, an opamp content, a frequency-dependent voltage divider, one output of which is a noise suppression circuit input, the other connected to an op amp output, which is an input of a noise suppression circuit and a frequency dependent output terminal the voltage divider is connected to the inverting input of the operational amplifier, while the first arm of the frequency-dependent voltage divider is implemented in the form of a resistor, and the second comprises a parallel-connected lower frequency filter at the input and a higher-frequency base filter and, in addition, an additional high-frequency additional filter identical to the basic a higher frequency filter and a control voltage former whose output is coupled to input controls of the base and additional high frequency filters, characterized in that in order to reduce the noise level modulation, the second arm of the frequency dependent d is a voltage adder is added to a summing unit whose inputs are connected to the higher frequency base filter and the lower frequency filter correspondingly, and the output is connected to the frequency dependent voltage divider, while the input of the higher frequency higher filter is connected to the higher frequency output of the higher frequency filter . A noise suppression circuit according to claim 1, characterized in that the control voltage former comprises a series-connected voltage source, a controlled voltage divider and an output filter of lower frequencies, in which a discharge key and a parallel output terminal are connected in parallel. a connected input amplitude detector, a first comparator, a pulse resistor selector, a restart timing relay whose output 256936 is connected to the voltage divider control input and a positive feedback to the pulse duration selector control input, between the amplitude detector output and the controllers the discharge key inputs and the resistance-controlled element are respectively connected to the second comparator and the restrictor. 256936