[天线]Argus: An L-Band All-Sky Astronomical Surveillance System

[post]Abstract—Argus is an experimental antenna array system designed BL
5
 
to demonstrate all-sky monitoring for transient signals in ?-F'0-t4%  
the frequency range 1200–1700 MHz. It currently consists of 22 SQKY;p  
broadband spiral antennas (expandable to 32) which are individually 9c;lTl^4;  
instrumented, digitized, and analyzed in an attempt to detect =ci5&B?  
and localize both broadband and narrowband astronomical [rQ(ae  
transients. In this paper, we describe the design of the instrument. NdSxWrD`m  
Notable features include a novel array data aggregation architecture, ;=9vmQA  
a detection algorithm which does not require accurate calibration iBiA0 W  
or detailed knowledge of the array manifold, and very low "g:&Ge*X  
per-element cost of about US$1k/element. A sensitivity of at least 1707  
661022Wm2Hz1=66kJy(zenith at 1700 MHz qM:)daS1w  
for a 209 ms observation with 60 kHz bandwidth) is achieved for &?g!}Ky \  
the system as implemented. Performance is demonstrated in an experiment oJ@PJvmR&a  
in which the Sun is detected, localized, and tracked as it JdYF&~  
moves across the sky. Other experiments confirming the functionality >scS wT  
of Argus as an al .. _TN$c  
x>9EVa)  

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These are good papers