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http://www.naic.edu/~phil/lbw/140421_a2703/a2703_140421.html.
http://www.naic.edu/~phil/lbw/140421_a2703/a2703_140421.html.
1. platform_oscillations
Oscillations can be measured with tilt sensors, tiedown tensions, encoder positions, total power variations of astronomical sources. Often times it's not obvious where the oscillation is coming from (eg. an oscillation in the total power when tracking a source could come from the rotary floor, feed tower, platform caused by drive system motors, platform caused by tiedown jacks, etc.. ... 15sep04: platform oscillations measured during tropical storm jeanne . ... N Accelerometer . ...
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Ссылки http://www.naic.edu/~phil/hardware/oscillations/oscillations.html -- 6.7 Кб -- 24.01.2014
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2. http://www.naic.edu/~astro/Links.shtml
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Ссылки http://www.naic.edu/~astro/Links.shtml -- 1.2 Кб -- 01.10.2012
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3. http://www.naic.edu/~phil/mbeam/hipass.pdf
... 2.3 Data acquisition Spectra generated by the Multibeam correlator contain the usual structure seen in spectra from other H i instruments: a bandpass spectrum which is the sum of the sky , ground and receiver temperatures multiplied by the product of the filters in the receiver chain; superimposed on this is a noise ... Note also that sources extended much beyond ,40 arcmin can be imaged poorly in HIPASS images because of the bandpass sidelobe effect described in Section 3.3. ...
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Ссылки http://www.naic.edu/~phil/mbeam/hipass.pdf -- 370.1 Кб -- 14.03.2003
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