{"id":48638,"date":"2025-07-22T14:04:35","date_gmt":"2025-07-22T12:04:35","guid":{"rendered":"https:\/\/www.derivaty.sk\/?p=48638"},"modified":"2025-07-22T14:04:35","modified_gmt":"2025-07-22T12:04:35","slug":"presna-barometricka-altimetria-algoritmy-kompenzacie-teploty-a-driftu-pre-vyskove-urcenie","status":"publish","type":"post","link":"https:\/\/www.vrtulniky.sk\/news\/presna-barometricka-altimetria-algoritmy-kompenzacie-teploty-a-driftu-pre-vyskove-urcenie\/","title":{"rendered":"Presn\u00e1 barometrick\u00e1 altimetria: Algoritmy kompenz\u00e1cie teploty a driftu pre v\u00fd\u0161kov\u00e9 ur\u010denie"},"content":{"rendered":"<h2>Pre\u010do barometrick\u00e1 altimetria a kde zlyh\u00e1va bez kompenz\u00e1cie<\/h2>\n<p>Barometrick\u00fd v\u00fd\u0161komer patr\u00ed medzi najenergeticky efekt\u00edvne a r\u00fdchle sn\u00edma\u010de v\u00fd\u0161ky pre drony. Tlak vzduchu kles\u00e1 so st\u00fapaj\u00facou nadmorskou v\u00fd\u0161kou, preto z merania statick\u00e9ho tlaku vieme odvodi\u0165 v\u00fd\u0161ku nad referen\u010dnou hladinou. Probl\u00e9mom je, \u017ee tlak sa men\u00ed aj <em>\u010dasom<\/em> (po\u010dasie) a <em>lok\u00e1lne<\/em> (teplotn\u00e9 gradienty, ohrev elektroniky, pr\u00fadenie od vrt\u00fa\u013e). Bez inteligentnej kompenz\u00e1cie teploty a driftu sa baro v\u00fd\u0161ka dok\u00e1\u017ee roz\u00eds\u0165 o desiatky metrov v priebehu min\u00fat. Tento \u010dl\u00e1nok pon\u00faka syst\u00e9mov\u00fd n\u00e1vod, ako realizova\u0165 <strong>kompenz\u00e1ciu v re\u00e1lnom \u010dase<\/strong> v praxi \u2013 od fyziky, cez umiestnenie sn\u00edma\u010da a filtr\u00e1ciu, po f\u00faziu s IMU\/GNSS a online odhad zaujatosti (biasu).<\/p>\n<h2>Fyzik\u00e1lny z\u00e1klad: z tlaku na v\u00fd\u0161ku<\/h2>\n<ul>\n<li><strong>Hypsometrick\u00e1 rovnica (ISA, troposf\u00e9ra):<\/strong> pri \u0161tandardnom teplotnom gradiente <em>L \u2248 0,0065 K\/m<\/em> plat\u00ed: <br \/><em>h = (T<sub>0<\/sub>\/L) \u00b7 [1 \u2212 (p\/p<sub>0<\/sub>)<sup>R\u00b7L\/g<\/sup>]<\/em>, <br \/>kde <em>R<\/em> je plynov\u00e1 kon\u0161tanta pre such\u00fd vzduch a <em>g<\/em> tia\u017eov\u00e9 zr\u00fdchlenie.<\/li>\n<li><strong>Lok\u00e1lna lineariz\u00e1cia:<\/strong> bl\u00edzko pracovn\u00e9ho bodu je <em>\u0394h \u2248 \u2212(RT\/g) \u00b7 (\u0394p\/p)<\/em>. Prakticky: pri hladine mora ~<em>1 hPa \u2248 8\u20139 m<\/em>, s rast\u00facou v\u00fd\u0161kou kles\u00e1 citlivos\u0165 (Pa\/m).<\/li>\n<li><strong>Teplota:<\/strong> v\u00fd\u0161ka z\u00e1vis\u00ed od teploty vzduchu v st\u013apci, nie len od teploty \u010dipu. Nespr\u00e1vne teplotn\u00e9 predpoklady \u2192 systematick\u00e1 chyba.<\/li>\n<\/ul>\n<h2>Zdroj ch\u00fdb: z \u010doho vznik\u00e1 drift<\/h2>\n<ul>\n<li><strong>Po\u010dasie:<\/strong> barick\u00fd trend (\u00b12\u20133 hPa za nieko\u013eko hod\u00edn) \u2192 desiatky metrov chyby bez re-referen\u010dovania (QNH\/QFE).<\/li>\n<li><strong>Teplota sn\u00edma\u010da:<\/strong> samoohrievanie a ohrev od elektroniky men\u00ed offset tlaku aj jeho citlivos\u0165 (typicky desiatky Pa na 10 \u00b0C).<\/li>\n<li><strong>Dynamick\u00fd tlak a pr\u00fadenie:<\/strong> \u201eprop wash\u201c, bo\u010dn\u00fd vietor, ventil\u00e1cia trupu \u2192 lok\u00e1lne podtlaky\/nadtlaky.<\/li>\n<li><strong>Vibr\u00e1cie:<\/strong> mikromechanick\u00e9 \u0161umy, akustick\u00e9 vplyvy vrt\u00fa\u013e \u2192 vysokofrekven\u010dn\u00fd \u0161um.<\/li>\n<li><strong>IMU\/GNSS chyby pri f\u00fazii:<\/strong> ak sa baro \u201epotiahne\u201c za driftuj\u00facou vertik\u00e1lnou r\u00fdchlos\u0165ou z IMU, vznikne pomal\u00fd posun.<\/li>\n<\/ul>\n<h2>Umiestnenie a mechanika: statick\u00fd tlak bez ru\u0161enia<\/h2>\n<ul>\n<li><strong>Statick\u00fd port:<\/strong> ak sa d\u00e1, pou\u017e\u00edvajte extern\u00fd statick\u00fd otvor\/komoru s labyrintom a filtra\u010dnou membr\u00e1nou; vyh\u00fdbajte sa priamym l\u00edni\u00e1m pr\u00fadenia od vrt\u00fa\u013e.<\/li>\n<li><strong>Term\u00e1lna izol\u00e1cia:<\/strong> sn\u00edma\u010d odde\u013ete od tepl\u00fdch komponentov (regul\u00e1tory, procesor) a tienen\u00edm zni\u017eujte teplotn\u00e9 gradienty.<\/li>\n<li><strong>Anti-vibr\u00e1cie:<\/strong> m\u00e4kk\u00e9 ulo\u017eenie PCB a kr\u00e1tke hadi\u010dky\/komory zni\u017euj\u00fa akustick\u00e9 buzenie.<\/li>\n<li><strong>Redundancia:<\/strong> dva r\u00f4zne baro sn\u00edma\u010de v inej poz\u00edcii (intern\u00fd + extern\u00fd) pom\u00e1haj\u00fa detegova\u0165 lok\u00e1lne chyby.<\/li>\n<\/ul>\n<h2>Teplotn\u00e1 kompenz\u00e1cia: od v\u00fdrobn\u00fdch polyn\u00f3mov po online adapt\u00e1ciu<\/h2>\n<ul>\n<li><strong>V\u00fdrobn\u00e9 koeficienty:<\/strong> modern\u00e9 sn\u00edma\u010de maj\u00fa intern\u00e9 kalibra\u010dn\u00e9 kon\u0161tanty (offset, citlivos\u0165). Pou\u017eite ich, ale po\u010d\u00edtajte s reziduom.<\/li>\n<li><strong>Vlastn\u00fd model:<\/strong> v teplotnej komore namerajte <em>p<sub>mer<\/sub> vs. T<\/em> pri referen\u010dnom tlaku a fitnite polyn\u00f3m 2.\u20133. r\u00e1du pre <em>offset(T)<\/em> a <em>scale(T)<\/em>. Ulo\u017ete koeficienty do FW.<\/li>\n<li><strong>Online korekcia:<\/strong> po\u010das letu sledujte pomal\u00fd drift <em>\u03b4p(T,t)<\/em> cez inova\u010dn\u00fa sekvenciu EKF (baro \u2013 predikcia z IMU\/GNSS) a adaptujte offset s dlhou \u010dasovou kon\u0161tantou (napr. 100\u2013300 s).<\/li>\n<li><strong>Warm-up f\u00e1za:<\/strong> prv\u00fdch 60\u2013120 s po zapnut\u00ed je kritick\u00fdch. Aplikujte zv\u00fd\u0161en\u00e9 filtrovanie a <em>do not trust<\/em> flag pre autopilota a\u017e do teplotnej stabiliz\u00e1cie.<\/li>\n<\/ul>\n<h2>Filtra\u010dn\u00fd re\u0165azec: od surov\u00e9ho tlaku po \u201eflight-grade\u201c v\u00fd\u0161ku<\/h2>\n<ol>\n<li><strong>Oversampling\/decim\u00e1cia:<\/strong> \u010d\u00edtajte sn\u00edma\u010d r\u00fdchlo (100\u2013200 Hz), spriemerujte na 50\u2013100 Hz, zni\u017eujete kvantiza\u010dn\u00fd \u0161um.<\/li>\n<li><strong>IIR n\u00edzkopriepustn\u00fd filter:<\/strong> \u03b1 v rozsahu 0,05\u20130,2 pod\u013ea dynamiky platformy (prudk\u00e9 man\u00e9vre vy\u017eaduj\u00fa vy\u0161\u0161ie p\u00e1smo).<\/li>\n<li><strong>Notch\/median filter:<\/strong> potla\u010denie prop-harmonic \u0161pi\u010diek (napr. 80\u2013200 Hz) alebo median 3\u20135 vzoriek pre \u201espikes\u201c.<\/li>\n<li><strong>Detektor pr\u00fadenia:<\/strong> ak je pr\u00edtomn\u00fd diferenci\u00e1lny tlak alebo IMU vibr\u00e1cie zv\u00fd\u0161en\u00e9, do\u010dasne zn\u00ed\u017ete d\u00f4veru baro merania (zv\u00fd\u0161te <em>R<\/em> v EKF).<\/li>\n<\/ol>\n<h2>F\u00fazia senzorov: EKF\/komplement\u00e1rny pr\u00edstup<\/h2>\n<ul>\n<li><strong>Kr\u00e1tkodob\u00e1 stabilita:<\/strong> IMU (zvisl\u00e9 zr\u00fdchlenie integrovan\u00e9 na r\u00fdchlos\u0165\/v\u00fd\u0161ku) so siln\u00fdm vysokofrekven\u010dn\u00fdm p\u00e1smom.<\/li>\n<li><strong>Strednodob\u00e1 referencia:<\/strong> baro v\u00fd\u0161ka dr\u017e\u00ed pomal\u00e9 zmeny (sekundy a\u017e min\u00faty), ale je n\u00e1chyln\u00e1 na barick\u00e9 trendy.<\/li>\n<li><strong>Dlhodobo:<\/strong> GNSS (geodetick\u00e1 v\u00fd\u0161ka) alebo radar\/laser altimeter (nad zemou) sl\u00fa\u017eia ako \u201eanchor\u201c proti barick\u00e9mu driftu.<\/li>\n<li><strong>Odhad biasu:<\/strong> roz\u0161\u00edren\u00fd KF nech obsahuje stav <em>b<sub>baro<\/sub><\/em> (zaujatos\u0165). Jeho deriv\u00e1ciu via\u017ete na nulov\u00fa priemern\u00fa vertik\u00e1lnu r\u00fdchlos\u0165 cez \u010dasov\u00e9 okn\u00e1 (zero-mean constraint).<\/li>\n<li><strong>Zero-velocity updates (ZUPT):<\/strong> pri stabilnom visen\u00ed z Vision\/IMU (vert. r\u00fdchlos\u0165 ~0) korigujte baro bias tak, aby <em>\u2202h\/\u2202t \u2192 0<\/em>.<\/li>\n<\/ul>\n<h2>QNH, QFE a referencie v auton\u00f3mii dronov<\/h2>\n<ul>\n<li><strong>QNH:<\/strong> tlak zredukovan\u00fd na hladinu mora \u2192 absol\u00fatna nadmorsk\u00e1 v\u00fd\u0161ka. Vhodn\u00e9 pre konzistentn\u00fa geo-referenciu.<\/li>\n<li><strong>QFE:<\/strong> tlak na mieste \u0161tartu \u2192 v\u00fd\u0161ka nad bodom T\/O (h = 0 na \u0161tarte). Praktick\u00e9 pre bezpe\u010dnostn\u00e9 v\u00fd\u0161ky v lok\u00e1lnej misii.<\/li>\n<li><strong>QNE (1013,25 hPa):<\/strong> \u0161tandardn\u00e1 referencia pre letov\u00e9 hladiny \u2013 menej be\u017en\u00e1 v n\u00edzkych UAS oper\u00e1ci\u00e1ch.<\/li>\n<li><strong>Praxe:<\/strong> pri auton\u00f3mii pou\u017e\u00edvajte QFE pre <em>relative altitude<\/em> a GNSS\/DEM pre absolutistick\u00fa kontrolu nad ter\u00e9nom.<\/li>\n<\/ul>\n<h2>Re\u00e1lne-\u010dasov\u00fd mana\u017ement driftu: praktick\u00fd algoritmus<\/h2>\n<ol>\n<li><strong>Inicializ\u00e1cia:<\/strong> 10\u201320 s priemernie tlaku v pokoji, nastavi\u0165 <em>p<sub>ref<\/sub><\/em> a <em>T<sub>ref<\/sub><\/em>; ak dostupn\u00e9 QNH\/QFE zo zeme, pou\u017ei\u0165.<\/li>\n<li><strong>Teplotn\u00e1 korekcia:<\/strong> aplikova\u0165 polyn\u00f3m <em>offset(T)<\/em> a <em>scale(T)<\/em> na surov\u00e9 meranie.<\/li>\n<li><strong>Filtr\u00e1cia:<\/strong> prehna\u0165 cez median (spike killer) \u2192 IIR LPF \u2192 downsample na 50 Hz.<\/li>\n<li><strong>EKF f\u00fazia:<\/strong> stavy: <em>h, v<sub>z<\/sub>, b<sub>baro<\/sub><\/em>. Merania: baro h, IMU a<sub>z<\/sub>, GNSS h (n\u00edzka frekvencia), laser\/radar h<sub>AGL<\/sub> (ak je).<\/li>\n<li><strong>Adapt\u00edvny R:<\/strong> zvy\u0161ova\u0165 meraciu kovarianciu baro, ak RMS vibr\u00e1ci\u00ed IMU alebo \u0394p\u2032 prekra\u010duj\u00fa prah.<\/li>\n<li><strong>Anchor aktualiz\u00e1cie:<\/strong> ka\u017ed\u00e9 30\u2013120 s porovna\u0165 trend baro vs. GNSS\/AGL; mal\u00fa \u010dasov\u00fa kon\u0161tantu priradi\u0165 <em>db\/dt<\/em> pre vyrovnanie dlhodob\u00e9ho driftu.<\/li>\n<li><strong>ZUPT\/hover:<\/strong> ak |v<sub>z<\/sub>| &lt; prah a dr\u017eanie polohy je akt\u00edvne, \u0165aha\u0165 <em>b<sub>baro<\/sub><\/em> k hodnote, ktor\u00e1 nulov\u00e1 vertik\u00e1lny drift.<\/li>\n<\/ol>\n<h2>\u0160um a stabilita: ako nastavi\u0165 \u010dasov\u00e9 kon\u0161tanty<\/h2>\n<ul>\n<li><strong>Allanova anal\u00fdza:<\/strong> odhadnite biely \u0161um a bias instabilitu sn\u00edma\u010da. Pod\u013ea nej nastavte LPF a Q\/R v EKF.<\/li>\n<li><strong>\u010casov\u00e1 kon\u0161tanta biasu:<\/strong> typicky 100\u2013300 s (elektro drony), r\u00fdchlej\u0161ie pri v\u00fdraznom teplotnom gradiente, pomal\u0161ie v stabilnej troposf\u00e9re.<\/li>\n<li><strong>Zisk pre GNSS anchor:<\/strong> mal\u00fd (napr. 0,001\u20130,01 s\u207b\u00b9), aby kr\u00e1tke v\u00fdkyvy GNSS neovl\u00e1dli baro.<\/li>\n<\/ul>\n<h2>Kompenz\u00e1cia pri man\u00e9vroch a vplyv dynamick\u00e9ho tlaku<\/h2>\n<ul>\n<li><strong>Detekcia re\u017eimu:<\/strong> pri prudk\u00fdch zmen\u00e1ch plynu alebo n\u00e1klonu rast\u00fa chyby baro. V autopilotovi po\u010das \u201eaggressive\u201c flight m\u00f3du zn\u00ed\u017ete v\u00e1hu baro.<\/li>\n<li><strong>Model prop-wash:<\/strong> ak pozn\u00e1te RPM\/\u0165ah, mo\u017eno adit\u00edvne korigova\u0165 baro o funkciu <em>f(RPM)<\/em>. Jednoduch\u0161ie je <em>robustn\u00e9 filtrovanie<\/em> + umiestnenie portu.<\/li>\n<\/ul>\n<h2>F\u00fazia s AGL (laser\/radar) a DEM<\/h2>\n<ul>\n<li><strong>AGL senzor:<\/strong> v\u00fdborn\u00fd do ~30\u201350 m nad zemou; nad touto hranicou jeho \u0161um\/spotreba rastie \u2013 baro preber\u00e1 rolu.<\/li>\n<li><strong>Terrain following:<\/strong> kombinujte baro (absol\u00fatny trend) + AGL (relat\u00edvna referencia) + DEM (digit\u00e1lny model reli\u00e9fu) pre bezpe\u010dn\u00e9 clearance nad ter\u00e9nom.<\/li>\n<\/ul>\n<h2>Redundancia a valid\u00e1cia merania<\/h2>\n<ul>\n<li><strong>Dual-baro voting:<\/strong> ak sa rozdiel &gt; prah (napr. 1,5\u20132,5 hPa), flagujte fault a degradujte v\u00e1hu problematick\u00e9ho kan\u00e1la.<\/li>\n<li><strong>Reasonableness checks:<\/strong> odvoden\u00e1 vertik\u00e1lna r\u00fdchlos\u0165 z baro by nemala dlhodobo odporova\u0165 IMU\/GNSS (testy konzistencie v EKF).<\/li>\n<\/ul>\n<h2>Prev\u00e1dzkov\u00e1 prax: kalibr\u00e1cia a misijn\u00e9 n\u00e1vyky<\/h2>\n<ul>\n<li><strong>Pred letom:<\/strong> reset QFE\/QNH, kr\u00e1tke zahriatie (\u226560 s), kontrola stability \u010d\u00edtan\u00ed (\u03c3 &lt; prah).<\/li>\n<li><strong>Po\u010das letu:<\/strong> ak je dostupn\u00fd pozemn\u00fd barograf alebo meteo stanica, pren\u00e1\u0161ajte trend (telemetria) a aktualizujte referenciu dlh\u00fdm filtrom.<\/li>\n<li><strong>Po lete:<\/strong> porovnajte baro \u201eh<sub>landing<\/sub>\u201c s nulou; zaznamenajte bias drift na \u00fa\u010dely adapt\u00e1cie koeficientov.<\/li>\n<\/ul>\n<h2>Bezpe\u010dnostn\u00e9 limity a fallbacky<\/h2>\n<ul>\n<li><strong>Geofence v Z:<\/strong> absolutistick\u00e9 max\/min v\u00fd\u0161ky viazan\u00e9 na GNSS a AGL, nie len baro.<\/li>\n<li><strong>RTH profil:<\/strong> n\u00e1vratov\u00e1 trajekt\u00f3ria nech pou\u017e\u00edva v\u00fd\u0161ku s \u201eanchorom\u201c (GNSS\/AGL) a konzervat\u00edvnu rezervu nad ter\u00e9nom.<\/li>\n<li><strong>Degradovan\u00e9 m\u00f3dy:<\/strong> pri baro fault prepn\u00fa\u0165 na GNSS+IMU s ohl\u00e1senou degrad\u00e1ciou v\u00fd\u0161kovej presnosti.<\/li>\n<\/ul>\n<h2>Metodika testovania a valid\u00e1cie<\/h2>\n<ol>\n<li><strong>Bench test:<\/strong> stabiln\u00fd tlak (uzavret\u00e1 komora), teplotn\u00fd cyklus 0\u201350 \u00b0C, zmerajte offset(T) a hyster\u00e9zu.<\/li>\n<li><strong>Prop-wash test:<\/strong> spustenie motorov na stojane, hodnotenie spektra ru\u0161enia a optimaliz\u00e1cia filtra\/notch.<\/li>\n<li><strong>Field test \u2013 statika:<\/strong> dlh\u00fd hover (5\u201310 min) s AGL; sledujte drift baro po aplik\u00e1cii ZUPT korekci\u00ed.<\/li>\n<li><strong>Field test \u2013 st\u00fapanie\/klesanie:<\/strong> kalibrujte oneskorenie a pr\u00edli\u0161n\u00fa filtr\u00e1ciu (phase lag) proti referencii (AGL\/RTK).<\/li>\n<li><strong>Metoo test:<\/strong> paraleln\u00fd z\u00e1znam baro z dvoch dronov, rovnak\u00fd profil letu, porovnanie trendov a reakcie na front.<\/li>\n<\/ol>\n<h2>Implementa\u010dn\u00e9 tipy pre firmv\u00e9r a autopilota<\/h2>\n<ul>\n<li><strong>\u010casov\u00e9 zna\u010dky:<\/strong> v\u0161etky merania \u010dasujte na spolo\u010dn\u00fa \u010dasov\u00fa b\u00e1zu; kompenzujte latency filtre (predikciou stavu).<\/li>\n<li><strong>Stavov\u00fd stroj d\u00f4very:<\/strong> flagy <em>warming<\/em>, <em>valid<\/em>, <em>degraded<\/em>, <em>fault<\/em>; riadenie v\u00e1h v EKF pod\u013ea stavu.<\/li>\n<li><strong>Logovanie:<\/strong> ukladajte surov\u00fd tlak, T, filtrovan\u00fd tlak, inov\u00e1ciu EKF, odhad biasu, v\u00e1hy meran\u00ed; zjednodu\u0161uje ladenie.<\/li>\n<li><strong>Konfigurovate\u013enos\u0165:<\/strong> oddelen\u00e9 parametre pre LPF cut-off, zisk anchoru, prahy vibr\u00e1ci\u00ed, \u010dasov\u00e9 kon\u0161tanty biasu pod\u013ea typu platformy (MR\/FW\/VTOL).<\/li>\n<\/ul>\n<h2>\u010co o\u010dak\u00e1va\u0165: realistick\u00e1 presnos\u0165 po kompenz\u00e1cii<\/h2>\n<ul>\n<li><strong>Kr\u00e1tkodobo (sekundy):<\/strong> \u0161um \u00b10,1\u20130,3 m pri kvalitnom sn\u00edma\u010di a vhodnom LPF.<\/li>\n<li><strong>Strednodobo (min\u00faty):<\/strong> drift \u2264 \u00b11\u20132 m pri stabilnom po\u010das\u00ed s akt\u00edvnym bias trackingom.<\/li>\n<li><strong>Dlhodobo (desiatky min\u00fat a\u017e hodiny):<\/strong> bez anchoru (GNSS\/AGL\/QNH) sa v barickej zmene m\u00f4\u017ee objavi\u0165 chyba 10+ m; s anchorom udr\u017e\u00edte &lt; 3\u20135 m.<\/li>\n<\/ul>\n<h2>Kombin\u00e1cia techniky a procesu<\/h2>\n<p>Barometrick\u00e1 altimetria je \u201e\u013eahk\u00fd\u201c sn\u00edma\u010d, no <strong>spo\u013eahliv\u00fd<\/strong> je a\u017e vtedy, ke\u010f spoj\u00edte tri vrstvy: <strong>dobre umiestnen\u00fd a teplotne kompenzovan\u00fd sn\u00edma\u010d<\/strong>, <strong>robustn\u00fa filtr\u00e1ciu a adapt\u00edvny odhad biasu<\/strong> a <strong>f\u00faziu s IMU\/GNSS\/AGL<\/strong> s vhodn\u00fdmi v\u00e1hami a bezpe\u010dnostn\u00fdmi fallbackmi. Tak\u00e1to architekt\u00fara umo\u017en\u00ed dronu udr\u017eiava\u0165 stabiln\u00fa v\u00fd\u0161ku, bezpe\u010dn\u00fd clearance a presn\u00e9 profily letu aj v meniacich sa podmienkach \u2013 <em>v re\u00e1lnom \u010dase<\/em> a bez nepr\u00edjemn\u00fdch prekvapen\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Presn\u00e1 v\u00fd\u0161ka vy\u017eaduje kompenz\u00e1ciu teploty a driftu. F\u00fazia s lidarom a pravideln\u00e1 kalibr\u00e1cia vo\u010di referen\u010dn\u00e9mu tlaku stabilizuj\u00fa dr\u017eanie hladiny.<\/p>\n","protected":false},"author":46,"featured_media":88638,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2629],"tags":[2198,2199,2200,2177,2201,1592,2202,2203],"class_list":["post-48638","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-drony","tag-barometricka-altimetria","tag-drift","tag-fuzia-s-lidarom","tag-kalibracia","tag-referencny-tlak","tag-stabilita","tag-teplotna-kompenzacia","tag-zafiltrovanie"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Presn\u00e1 barometrick\u00e1 altimetria: Algoritmy kompenz\u00e1cie teploty a driftu pre v\u00fd\u0161kov\u00e9 ur\u010denie - Podnik\u00e1m, lietam a relaxujem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vrtulniky.sk\/news\/presna-barometricka-altimetria-algoritmy-kompenzacie-teploty-a-driftu-pre-vyskove-urcenie\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Presn\u00e1 barometrick\u00e1 altimetria: Algoritmy kompenz\u00e1cie teploty a driftu pre v\u00fd\u0161kov\u00e9 ur\u010denie - Podnik\u00e1m, lietam a relaxujem\" \/>\n<meta property=\"og:description\" content=\"Presn\u00e1 v\u00fd\u0161ka vy\u017eaduje kompenz\u00e1ciu teploty a driftu. 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