Static Fourier spectrometers are often used for spectral measurements of the ionosphere emissions. There are two main advantages of Fourier spectrometers (FS) - large geometric factor and high spectral resolution; these parameters are two orders better than for grating spectral instruments. ... In scanning Fourier spectrometer optical and electric modulation of signal is used to avoid this problem, for static Fourier spectrometer there are no such ways. ...
... In the course of the BURAN orbiter development, suborbital and orbital launches of BOR-4 and BOR-5 flight vehicles have been produced for aerodynamic analysis and working capacity of thermal protection structures verification. ... The flights of the SPIRAL prototype and BOR-4 and BOR-5 flying vehicles have allowed not only to speed up the BURAN orbiter development, but also to justify the choice of the aerodynamic scheme of the orbital stage of the advanced MAKS aerospace system. ... Buran Orbiter ....
... Numerical Modeling of RadioAstron SRT Temperature Deformations M. Yu. Arkhipov, I. S. Vinogradov, S. B. Novikov, and S. D. Fedorchuk Astro Space Center, Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia e mail: rusengineer@mail.ru Received December 16, 2013 Abstract--The results of modeling the thermal deformations of a space radio telescope's reflecting surface are presented in the paper. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,391.pdf -- 437.2 Кб -- 07.10.2014 Похожие документы
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