与无源相控阵一起使用的相移过程通常将接收波束和发射波束置于对角相对的象限中。在发射脉冲结束后和接收周期开始之前,必须反转相移的符号,以便将接收波束置于与发射波束相同的位置。这需要降低多普勒雷达和脉冲多普勒雷达的亚杂波能见度性能的相位脉冲。例如,钇铁石榴石移相器必须在发射脉冲淬灭之后和接收器处理开始对准发射和接收光束之前进行更改。该脉冲会引入 FM 噪声,从而降低杂波性能。
^Archived copy(PDF). [2009-04-22]. (原始内容(PDF)存档于2008-07-06). Braun's Nobel Prize lecture. The phased array section is on pages 239–240.
^"Die Strassburger Versuche über gerichtete drahtlose Telegraphie" (The Strassburg experiments on directed wireless telegraphy), Elektrotechnische und Polytechnische Rundschau (Electrical technology and polytechnic review [a weekly]), (1 November 1905). This article is summarized (in German) in:
Adolf Prasch, ed., Die Fortschritte auf dem Gebiete der Drahtlosen Telegraphie [Progress in the field of wireless telegraphy] (Stuttgart, Germany: Ferdinand Enke, 1906), vol. 4, pages 184–185.
^See Joseph Spradley, "A Volumetric Electrically Scanned Two-Dimensional Microwave Antenna Array," IRE National Convention Record, Part I – Antennas and Propagation; Microwaves, New York: The Institute of Radio Engineers, 1958, 204–212.
Gran Premio de Japón de 2023Detalles de carrera 14.ª prueba de 20de la Temporada 2023 del Campeonato. Datos generalesFecha 1 de octubre de 2023Sede Twin Ring MotegiCircuitoTipo ylongitud Instalaciones Permanentes4.801 km / 2.983 miMotoGP Pole position Vuelta rápida Jorge Martín1:43.198[1] Johann Zarco1:55.903[1] Podio Jorge Martín Francesco Bagnaia Marc Márquez Moto2 Pole position Vuelta rápida Somkiat Chantra1:49.898[2] Somkiat Chantra1:50.679[2]&...
Ле-Па-Сен-л'ОмеLe Pas-Saint-l'Homer Країна Франція Регіон Нормандія Департамент Орн Округ Мортань-о-Перш Кантон Лонні-о-Перш Код INSEE 61323 Поштові індекси 61290 Координати 48°29′49″ пн. ш. 0°56′02″ сх. д.H G O Висота 196 - 231 м.н.р.м. Площа 9,43 км² Населення 125 (01-2020[1]) Густота ...
يمنح الجواز الصحفي (يشار إليها أيضًا باسم بطاقة صحفية أو إذن صحفي) بعض الامتيازات الخاصة للصحفيين. بعض البطاقات لها حالة قانونية معتمدة والبعض الآخر لا يشير سوى إلى أن حاملها صحفي متدرب. يتم تحديد طبيعة المزايا من خلال نوع الوكالة التي أصدرته حيث يوجد منها ثلاث فئات رئيسية: و
У Вікіпедії є статті про інші географічні об’єкти з назвою Пасадена-Гіллс. Переписна місцевість Пасадена-Гіллсангл. Pasadena Hills Координати 28°16′ пн. ш. 82°13′ зх. д. / 28.267° пн. ш. 82.217° зх. д. / 28.267; -82.217Координати: 28°16′ пн. ш. 82°13′ зх. д....
1966 single by Count FivePsychotic ReactionGerman single picture sleeve, HansaSingle by Count Fivefrom the album Psychotic Reaction B-sideThey're Gonna Get YouReleasedJune 1966 (1966-06)Recorded1966StudioHollywood, CaliforniaGenreGarage rock[1][2]acid rock[3]psychedelic rock[4]proto-punk[5]Length2:56LabelDouble ShotSongwriter(s)Kenn EllnerRoy ChaneyCraig Butch AtkinsonJohn Sean ByrneJohn Mouse MichalskiProducer(s)Hal WinnJoseph HoovenCount Fiv...
Species of bat Philippine dawn bat Conservation status Vulnerable (IUCN 3.1)[1] Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Chiroptera Family: Pteropodidae Genus: Eonycteris Species: E. robusta Binomial name Eonycteris robustaMiller, 1913 Philippine dawn bat range The Philippine dawn bat (Eonycteris robusta) is a species of megabat in the family Pteropodidae found in the Philippines. References ^ Waldien, D.L.; Carino...
Romania television channel This article is about a Romanian television channel. For the Czech television channel, see Prima televize. Television channel Prima TVCountryRomaniaBroadcast areaRomaniaMoldovaHeadquartersBucharest, RomaniaProgrammingPicture format1080i HDTV(downscaled to 16:9 576i for the SDTV feed)OwnershipOwnerClever GroupSister channelsPrima SportPrima NewsPrima ComedyPrima 4KProfit NewsAgro TVCinemaratonCinemaEstMedika TVHistoryLaunched17 December 1997; 25 years ag...
مثال على تفاعل بلمرة ألكين حيث تتفاعل مونمرات الستيرين لتكون بوليستيرينإن البلمرة أو التَّبَلمُر[1] أو الكَوْثَرَة[2][3] في كيمياء البوليمرات هي عملية تفاعل جزيئات المونومر(أحادي الحد) مع بعضها وفق تفاعل كيميائي لتُشكِّل شبكات ثلاثية الأبعاد أو سلاسل بوليمرية.&...
Eingangsbereich (2019) Das Naturhistorische Museum Basel «Archive des Lebens» ist ein Naturkundemuseum in Basel. Es wurde 1821 gegründet und ist seit 1849 im damals eröffneten Museum an der Augustinergasse. Es deckt die meisten Bereiche der Naturwissenschaften ab. Sein Auftrag ist das Erweitern, Bewahren, Erforschen, Dokumentieren und Vermitteln der naturwissenschaftlichen Sammlungen. Direktor Hans Walter Schaub modernisierte von 1959 bis 1979 die Präsentation. Inhaltsverzeichnis 1 Ausst...
Oral tradition of Turkish people Turkishliterature By category Epic tradition Orhon Dede Korkut Köroğlu Folk tradition Folk literature Folklore Ottoman era Poetry Prose Republican era Contemporary Poetry Prose vte Turkish folk literature is an oral tradition deeply rooted, in its form, in Anatolian traditions. However, in its themes, Turkish folk literature reflects the problems peculiar to a settling (or settled) people who have abandoned the nomadic lifestyle. One example of this is the s...
Artikel ini merupakan bagian dari seri Agama Hindu menurut negara Afrika Afrika Selatan · Afrika Tengah · Aljazair · Angola · Benin · Botswana · Burkina Faso · Burundi · Chad · Djibouti · Eritrea · Eswatini · Ethiopia · Gabon · Gambia · Ghana · Guinea · Guinea-Bissau · Guinea Khatulistiwa ...
2019 single by JoJoJoannaSingle by JoJoReleasedOctober 11, 2019 (2019-10-11)GenreFreestyle[1]R&B[2]Length2:08Label Clover Music Warner Bros. Songwriter(s)Joanna LevesqueNatalie DunnRebekah MuhammadJeff GitelmanProducer(s)Jeff GitelmanJoJo singles chronology Say So (2019) Joanna (2019) Sabotage (2019) Music videoJoanna on YouTube Joanna is a song recorded by American singer-songwriter JoJo, released on October 11, 2019 by Clover Music and Warner Bros. Rec...
Carricero de Seychelles Estado de conservaciónVulnerable (UICN 3.1)[1]TaxonomíaReino: AnimaliaFilo: ChordataClase: AvesOrden: PasseriformesSuperfamilia: SylvioideaFamilia: AcrocephalidaeGénero: AcrocephalusEspecie: Acrocephalus sechellensis(Oustalet, 1877)Sinonimia Bebrornis sechellensis[2] [editar datos en Wikidata] El carricero de Seychelles (Acrocephalus sechellensis)[3] [4] es una especie de ave paseriforme de la familia Acrocephalidae ...
Public university in Siliguri, West Bengal, India This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: University of North Bengal – news · newspapers · books · scholar · JSTOR (July 2017) (Learn how and when to remove this template message) This article about higher education may require cleanup. Please review ed...
Second crewed mission to orbit the Moon Apollo 10Apollo 10's Lunar Module, Snoopy, approaches the Command and Service Module Charlie Brown for redockingMission typeCrewed lunar orbital CSM/LM flight (F)OperatorNASACOSPAR IDCSM: 1969-043A[1]LM: 1969-043CSATCAT no.CSM: 3941LM: 3948Mission duration8 days, 3 minutes, 23 seconds Spacecraft propertiesSpacecraftApollo CSM-106LM-4ManufacturerCSM: North American RockwellLM: GrummanLaunch mass42,775 kg[2]Landing mass4,945...
2015 video game Not to be confused with Star Wars: Battlefront (2004 video game). 2015 video gameStar Wars BattlefrontCover artDeveloper(s)DICEPublisher(s)Electronic ArtsProducer(s)Sigurlína Ingvarsdóttir[1]Designer(s)Niklas FegraeusArtist(s)Ken BrownComposer(s)Gordy HaabSeriesStar Wars: BattlefrontEngineFrostbite 3Platform(s)PlayStation 4[2]Windows Xbox One[2]ReleaseNA: November 17, 2015AU: November 18, 2015EU: November 19, 2015Genre(s)First-person shooter, third-pe...
U.S. House district for South Carolina South Carolina's 1st congressional districtInteractive map of district boundaries since January 3, 2023Representative Nancy MaceR–CharlestonDistribution85% urban15% ruralPopulation (2022)762,713[1]Median householdincome$85,282[1]Ethnicity68.2% White18.7% Black8.1% Hispanic2.8% Asian2.1% Native American0.2% Pacific Islander Americans0.1% otherCook PVIR+7[2]Created1789 South Carolina's 1st congressional district is a coastal...
MesovariumTransverse section of human embryo eight and a half to nine weeks old. (Mesovarium visible at center.)Uterus and right broad ligament, seen from behind. (Broad ligament visible at center. Mesovarium not labeled, but it is the portion of the broad ligament closest to the ovary.)DetailsIdentifiersLatinMesovariumTA98A10.1.02.508FTA23803FMA19815Anatomical terminology[edit on Wikidata] The mesovarium is the portion of the broad ligament of the uterus that suspends the ovaries. The ov...