S.Montebgnoli IRA -INAF- Bologna –Italy- 4 th SKADS Workshop, Lisbon, 2-3 October 2008
Stelio Montebugnoli BEST 4 th SKADS Workshop, Lisbon, 2-3 October 2008 S.Montebgnoli IRA -INAF-...
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Transcript of Stelio Montebugnoli BEST 4 th SKADS Workshop, Lisbon, 2-3 October 2008 S.Montebgnoli IRA -INAF-...
Stelio MontebugnoliBEST4th SKADS Workshop, Lisbon, 2-3 October 2008
S.Montebgnoli
IRA -INAF-
Bologna –Italy-
4th SKADS Workshop, Lisbon, 2-3 October 2008
Stelio MontebugnoliBEST4th SKADS Workshop, Lisbon, 2-3 October 2008
DS-6 T1 Deliverables: 1- Analogue (T0+12mo) and/or digital optical links (T0+21mo).2- Architecture and technology for immediate application on the BEST - x demonstrator construction (T0+10mo).
Project DS6 - T1: Design Develop and Demonstrate
Sub - Systems
End Best - 1 Construction
Best - 2 Construction
Best - 3 Construction
Analog and / or digital optical links
Year 4Qtr 1 Qtr 2 Qtr 3 Qtr 4Qtr 4
Year 2Qtr 1 Qtr 2 Qtr 3 Qtr 4
Year 3Qtr 1 Qtr 2 Qtr 3
Year 1Qtr 1 Qtr 2 Qtr 3 Qtr 4
Architecture and technology for immediate application onthe BEST - x demonstrator construction
Stelio MontebugnoliBEST4th SKADS Workshop, Lisbon, 2-3 October 2008
1- Analogue (T0+12mo) and/or digital optical links (T0+21mo). (Done)
Optical Tx
Analog Link
Optical RX
BEST-2 IF
Stelio MontebugnoliBEST4th SKADS Workshop, Lisbon, 2-3 October 2008
Low Noise balanced Amplifier
IF Amplifier
2- Architecture and technology for immediate application on the BEST - x demonstrator construction (T0+10mo). (Done)
Optical linkFront End
A/D
Stelio MontebugnoliBEST4th SKADS Workshop, Lisbon, 2-3 October 2008
DS-6 T2 Deliverables: 1. front ends to the receiver room (T0+12mo).2. Immediately ready and easily replicable electronic (T0+12mo).3. Local oscillator and sync. distribution in large infrastructures/arrays (T+38mo).4. Wide band and high dynamic range Data Acquisition System (T+39mo).5. 2 GHz analogue optical link (already used in BEST-1 and planned for BEST-2, -36.Tested adaptive beamforming and RFI Mitigation algorithms (T0+39mo).
Project DS6 - T2: Develop and Demonstrate BEST
End Best - 1 Construction
Best - 2 Construction
Best - 3 Construction
Immediately ready and easily replicable electronic
Wide band high dynamic range Data Acquisition System
Software Beamforming
Year 4Qtr 1 Qtr 2 Qtr 3 Qtr 4Qtr 4
Year 2Qtr 1 Qtr 2 Qtr 3 Qtr 4
Year 3Qtr 1 Qtr 2 Qtr 3
Year 1Qtr 1 Qtr 2 Qtr 3 Qtr 4
IRA - TEKMAR 2GHz analog optical link (already used inBEST-1 and planned for BEST-2, -3 from the front-endsto the receivers room) and digital link
Local oscillator and sync distribution in largeinfrastructure / arrays
Tested adaptive beamforming and RFI mitigationalgorithms
Stelio MontebugnoliBEST4th SKADS Workshop, Lisbon, 2-3 October 2008
LNA
Front endEasily replicable electronic Sync distribution
LO distributionOptical FiberFX correlator
DS-6 T2 Deliverables:.. 1,2,3,4,5, .in practice.
Stelio MontebugnoliBEST4th SKADS Workshop, Lisbon, 2-3 October 2008
X =
Dim. NxT
T
t
R̂
using Cholesky Decomp.
1ˆ R
0d̂
=0
10
01
ˆˆˆ
ˆˆ
dRd
dRH
wRx
n° samples per Rx
A/D A/D A/D
1 2 N
1w
2w
Nw
Final version will be programmed on the Bee 2 engine
6.Tested adaptive beamforming and RFI Mitigation algorithms (T0+39mo)
Simulation level. Not jet implemented .It will be the next step pf the Bee2 programming.
(Not completely Done).
Stelio MontebugnoliBEST4th SKADS Workshop, Lisbon, 2-3 October 2008
DS-6 T3 Deliverables: 1.Simulation Software for sensor array (T0 + 36 months)2.Methodology to compare expected results with the simulated ones (T0 + 39 months)
Project DS6 - T3: Assessment of performances
End Best - 1 Construction
Best - 2 Construction
Best - 3 Construction
Simulation software for sensor arrayMethodology to compare expected results with thesimulated onesComparison of performances with the SKAMPdemonstrator
Year 1Qtr 1 Qtr 2 Qtr 3 Qtr 4 Qtr 4
Year 2Qtr 1 Qtr 2 Qtr 3 Qtr 4
Year 3Qtr 1 Qtr 2 Qtr 3
Year 4Qtr 1 Qtr 2 Qtr 3 Qtr 4
Stelio MontebugnoliBEST4th SKADS Workshop, Lisbon, 2-3 October 2008
1. Simulation Software for sensor array (T0 + 36 months)
UV-plane coverage analysis for the BEST project(SKA-DS) INAF-IRA Technical Report #417/08
E. Carretti1, D. Dallacasa1, 2
1-INAF–IRA, Via Gobetti 101, I-40129 Bologna, Italy2-Università di Bologna, Astronomy Dep., Via Ranzani 1, I-40126 Bologna, Italy
(Partially done)
Stelio MontebugnoliBEST4th SKADS Workshop, Lisbon, 2-3 October 2008
DS6-T3: Assessment of Performace
BEST-1: Pn obtained with . GRASP
0,0,2
0 0 0
0,0,2
; , ; , sin
; , ,; , sin
n b
ant
n
P T d d
TP d d
= 86.3 K
1 0.045 2100 94.5sys BEST eqT G Flux K Jy Jy K
261
110 0.045
2g
BEST
A K KG
k Jy Jy
F=408 MHz
2. Methodology to compare expected results with the simulated ones (T0 + 39 months) (Partially done)
Computed TSYSComputed TSYS
Measured TSYS
Stelio MontebugnoliBEST4th SKADS Workshop, Lisbon, 2-3 October 2008
DS-4 Deliverables: (to be focused with J.G. Bij de Vaate and Laurens Bakker)
Kick off meeting in Medicina (Bologna) on April 2008 (BdeV)
Stelio MontebugnoliBEST4th SKADS Workshop, Lisbon, 2-3 October 2008
FIFO
Coarse TimeDelay
AD
DDC Resc.
DelayCTRL
Intellig.RFI
HandlingFFT-1
Calibration/FFT Phase LUT
Delay & RFI control
PFB
Adaptive Beamf. Control
Adapt.Beamf.
RX 1 I
m1
i
m
RX i
RX
m
Fringes (f)
k
Beam 1
Beam i
I
Beam k
Rxi Calibration
Adaptive/multibeaming
Calibration, Direct Pixeling, FX Correlation Calibration, Digital Adaptive beamforming (linked with DS3-T2 & DS 4 T3 and T5)
4 (bits)F
X
FX corelatorRxi spectrum
Rxi
Block diagram (Deliverables)
Stelio MontebugnoliBEST4th SKADS Workshop, Lisbon, 2-3 October 2008