Back-ends

被引：0
|
作者：
Fisher, JR [1 ]
机构：
[1] Natl Radio Astron Observ, Green Bank, WV 24944 USA
来源：
SINGLE-DISH RADIO ASTRONOMY: TECHNIQUES AND APPLICATIONS | 2002年 / 278卷
关键词：
D O I：
暂无
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
The final stages of receiver electronics are designed to extract information about the intensity of cosmic signals as a function of time, frequency, and polarization. The required signal processing can be as simple as a total power detector or as complex as a pulsar search machine that looks for periodic, dispersed pulse signatures in the time and frequency domain. This mini-lecture gives a brief overview of square-law detectors, FFT spectrometers, polarimeters, and pulsar processors. It touches on calibration issues and the synchronous control of front-end calibration signals and beam and load switches.
引用
收藏
页码：113 / 122
页数：10
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