A SAW CZT-based radio astronomy spectrometer

Author

Chen, D.P. ; Gong, J.J. ; Zhou, X.W. ; Xie, S. ; Wei, Y.L.

Author_Institution

Inst. of Acoust., Acad. Sinica, Beijing, China

fYear

1991

fDate

8-11 Dec 1991

Firstpage

65

Abstract

A brief description of an application of a SAW (surface acoustic wave) CZT processor to spectrum analysis of radio astronomical signals is given. A prototype of a SAW CZT-based radio astronomy spectrometer is designed for a millimeter-wave radio telescope of 13.7-m aperture at the Qinghai Station of the Purple Mountain Astronomical Observatory of China with a real-time bandwidth of 40-MHz and a frequency resolution of less than 40 kHz. It has been both measured under laboratory conditions and tested by installation at the back end of the radio telescope. The measured electric specifications and the testing observation results for 22-GHz H₂O molecular maser radiation confirm its competitive application potential in radio astronomy techniques

Keywords

radioastronomical techniques; surface acoustic wave devices; 13.7 m; 40 MHz; China; H₂O molecular maser radiation; Purple Mountain Astronomical Observatory; Qinghai Station; SAW CZT-based radio astronomy spectrometer; millimeter-wave radio telescope; real-time bandwidth; spectrum analysis; Acoustic waves; Extraterrestrial measurements; Optical design; Prototypes; Radio astronomy; Signal analysis; Signal processing; Spectroscopy; Surface acoustic waves; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1991. Proceedings., IEEE 1991

Conference_Location

Orlando, FL

Type

conf

DOI

10.1109/ULTSYM.1991.234129

Filename

234129