... We examine the effects of amplifiers gain fluctuations, of fluctuations in the amplifiers noise temperatures, in the reference load tem perature and in the DC gain ratio. We find that 1=f gain fluctuations are suppressed by proper gain modulation, leaving fluctuations in the amplifiers noise temperatures as the main source of 1=f type noise. ... 4 Discussion and conclusions We have shown that the dominant source of 1=f noise in the radiometer output is amplifier noise temperature fluctuations. ...
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Ссылки http://www.mrao.cam.ac.uk/ppeuc/astronomy/papers/mandolesi.ps -- 152.7 Кб -- 17.07.1997 Похожие документы
The HyperNews Linux KHG Discussion Pages . ... Go read The Linux Kernel if you want an introduction to the Linux kernel that is better than the KHG. ... The most common Linux kernel programming task is writing a new device driver. ... The Linux Kernel Hackers' Guide has changed quite a bit since its original conception four years ago. ... Copyright (C) 1996,1997 Michael K. Johnson, johnsonm@redhat.com . ... Untitled by welch@mcmail.com . ... 1. linux-kernel@vger.rutgers.edu by Michael K. Johnson . ...
... This is a list of animated supernova images which I have had the pleasure of collecting over the years. ... Pedro Re animation of 2005cs . ... Pedro Re' animation of his images of 2002ap . ... U of Iowa animation of images of 2000bg . U of Iowa animation of images of 2000C . U of Iowa animation of images of 1999gp . ... Pedro Re' animation of his images of 1999by . ... Pedro Re' animation of his images of 1998dh . ... Pedro Re' animation of his images of 1998S ( description ) . ...
... После длительного полета аппарат встретиться с кометой Wirtanen и выйдет на орбиту вокруг нее. На поверхность кометы опуститься посадочный модуль, который проведет научные исследования. В течении круизной фазы, КА выполнит гравитационные маневры, один раз около Марса и два раза около Земли. ... В течении 17 месячной работы в непосредственной близости от ядра кометы, Rosetta будет исследовать поверхность с расстояния 10 - 50 километров, с помощью инструментов дистанционного зондирования. ...
Космическая деятельность в начале 21 века (взгляд изнутри) Г.М. Чернявский НТЦ «Космонит», Российская корпорация ракетно-космического приборостроения и информационных систем 1. ... Однако, монетарный подход в России привел к тому, что международное сотрудничество сводится к участию на рынке космических услуг. ... Но если Европа при тесном взаимодействии с США весьма активна по основным направлениям космической деятельности, то Россия находится под угрозой превращения в «космического извозчика». ...
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Ссылки http://resurs.cpi.space.ru/files/Space_activity_at_the_beginning_of_XXI-st_Century_rus.doc -- 227.0 Кб -- 16.08.2012 Похожие документы
Using Site testing data for Adaptive Optics simulations Kislovodsk, October 2010 1Glen Herriot, 1David Andersen, 1Jean-Pierre VИran, 2Brent Ellerbroek, 2Luc Gilles, 2Lianqi Wang 1National Research Council Canada Herzberg Institute of Astrophysics 2TMT Project Office, Pasadena TMT.AOS.PRE.10.074.REL01 1 Outline TMT / NFIRAOS Site Testing Parameters and their value for Adaptive Optics Simulations ... TMT.AOS.PRE.10.074.REL01 9 What is the interest of Adaptive Optics in r 0 Seeing ? ...
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Ссылки http://site2010.sai.msu.ru/static/doc/GHerriot_site2010.ppt.pdf -- 1942.1 Кб -- 18.10.2010 Похожие документы
... Plate drilling . ... Hole locations . ... Approximately 670 holes are drilled in each plate. ... Once the plug-plate is assembled and installed on the telescope, guide stars imaged onto coherent fiber-optic bundles are used to determine the errors in telescope pointing, image scale and rotator angle. ... As described in the introduction, the holes are drilled tilted with respect to the normal to the plate surface. The tilt of holes were measured on six plates drilled prior to plate uw0111. ...
... Submitted by Al Takeda on 11/18/2011 09:00:32 . Comet Garradd and The Coathanger . ... The members of the Coathanger group range from magnitude 5.1 to 7.2 and is best viewed with a wide field telescope or binoculars since it occupies an area of 60 minutes of arc (1-degree). 2 images x 360-second subframes, Total= 12 minutes (Taken through thin clouds). ... ATMoB Clubhouse, Westford, MA, 2 September 2011. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...
... Dmitry Stepanovich (VIDEO of March 2011) . Olga Silchenko, a soloist of the Early Music Theatre . ... Anna and Olga Silchenko have presented the duets by Rubinstein and Chaikovsky (VIDEO) . ... Two Russian romances - duets by Olga Silchenko and Dmitry Stepanovich (VIDEO) . ... N. Rimsky-Korsakov "The Tsar's Bride", the duet of Lubasha and Gryaznoy - by Olga Silchenko and Dmitry Stepanovich (VIDEO) . ... Vivaldi "Magnificat", 6th part, duet by Anna and Olga Silchenko (VIDEO) . ... Olga Silchenko . ...
... Director, continued on page 3) Simpson Observatory (609) 737-2575 How to Observe in the Winter without Freezing to Death. It's that time of year again. Sparkling, clear winter nights, the return of the Orion Nebula, the Crab Nebula and all the star clusters of the winter Milky Way to entice amateur astronomers from the warmth of their homes to stargaze. ... There's only one problem with observing at this time of year, IT'S COLD! ... 1) It's Colder at Night than in the Daytime. ...
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Ссылки http://www.princetonastronomy.org/newsletters/03_2003sidereal.pdf -- 1405.4 Кб -- 27.04.2003 Похожие документы
Addendum For NexStar GPS Hand Control Section Of The Owner's Manual. ... Please refer to these pages for specific information regarding telescope alignment and hand control functions. ... Align: Instructs the NexStar to use a selected star or object as an alignment position. ... Use the direction keys to move the telescope to the initial alignment stars or for centering objects in the eyepiece. ... Enter: Pressing Enter allows you to select any of the NexStar functions and accept entered parameters. ...
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Ссылки http://www.astro.louisville.edu/software/xmtel/archive/xmtel-3.1/docs/nexstar/hand_control_v1.6.pdf -- 464.5 Кб -- 10.04.2003 Похожие документы