Signal Processing for Aperture Arrays
Signal Processing for Aperture Arrays
Jan 18, 2016
Signal Processing for Aperture Arrays. AAVS1. 256 antenna elements distributed over 4 stations 64 elements each. AAVS1 Setup. 64 elements. Station 1. Station 2. Station 3. Station 4. Correlator. Station architecture. Receiver board. Digital processing board. X pol. Antennas. - PowerPoint PPT Presentation
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Signal Processing for Aperture Arrays
AAVS1
• 256 antenna elements distributed over– 4 stations– 64 elements each
AAVS1 Setup
Station 1 Station 2 Station 3 Station 4
64 elements
Correlator
Station architecture
Antennas
Architecture: ADCs centrally
Receiver board Digital processing board
X pol.
Y pol.
Antennas
APERTIF Hardware
Expected integration date: January 2012
ADU
UniBoard
APERTIF Numbers
• ADU– 400-800 MHz (can be modified)– Dual ADC with fmax=1 GHz– 8 bit
• UniBoard– 16 signal paths– Input bandwidth: 400 MHz– Output bandwidth: 40 beams of 300 MHz
Required changes for AAVS1
• ADU filter removed• Sampling @ 1 GHz• UniBoard input bandwidth 1 GHz
Correlator
Can be a set of single UniBoards,each doing a part of the band
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