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S.Montebgnoli IRA -INAF- Bologna –Italy- 4 th SKADS Workshop, Lisbon, 2-3 October 2008

DS-6 Deliverables. S.Montebgnoli IRA -INAF- Bologna –Italy- 4 th 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

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S.Montebgnoli IRA -INAF- Bologna –Italy- 4 th SKADS Workshop, Lisbon, 2-3 October 2008

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  1. DS-6 Deliverables S.Montebgnoli IRA -INAF- Bologna –Italy- 4th SKADS Workshop, Lisbon, 2-3 October 2008

  2. 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).

  3. 1- Analogue (T0+12mo) and/or digital optical links (T0+21mo). (Done) Analog Link Optical RX Optical Tx BEST-2 IF

  4. 2- Architecture and technology for immediate application on the BEST - x demonstrator construction (T0+10mo). (Done) Optical link Front End Low Noise balanced Amplifier IF Amplifier A/D

  5. DS-6 T2 Deliverables: • front ends to the receiver room (T0+12mo). • Immediately ready and easily replicable electronic (T0+12mo). • Local oscillator and sync. distribution in large infrastructures/arrays (T+38mo). • Wide band and high dynamic range Data Acquisition System (T+39mo). • 2 GHz analogue optical link (already used in BEST-1 and planned for BEST-2, -3 • 6.Tested adaptive beamforming and RFI Mitigation algorithms (T0+39mo).

  6. DS-6 T2 Deliverables:.. 1,2,3,4,5, .in practice. LNA Front end Sync distribution Easily replicable electronic Optical Fiber LO distribution FX correlator

  7. 1 2 N A/D A/D A/D 6.Tested adaptive beamforming and RFI Mitigation algorithms (T0+39mo) (Not completely Done). Simulation level. Not jet implemented . It will be the next step pf the Bee2 programming. = X = Dim. NxT using Cholesky Decomp. t T Rx n° samples per Rx Final version will be programmed on the Bee 2 engine

  8. DS-6 T3 Deliverables: • Simulation Software for sensor array (T0 + 36 months) • Methodology to compare expected results with the simulated ones (T0 + 39 months)

  9. Simulation Software for sensor array (T0 + 36 months) (Partially done) 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, Italy 2-Università di Bologna, Astronomy Dep., Via Ranzani 1, I-40126 Bologna, Italy

  10. 2. Methodology to compare expected results with the simulated ones (T0 + 39 months) (Partially done) DS6-T3: Assessment of Performace = 86.3 K Computed TSYS Computed TSYS BEST-1: Pn obtained with . GRASP F=408 MHz Measured TSYS

  11. 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)

  12. A D Calibration, Direct Pixeling, FX Correlation Calibration, Digital Adaptive beamforming (linked with DS3-T2 & DS 4 T3 and T5) FX corelator Rxi PFB Coarse Time Delay F Rxi spectrum X Resc. Fringes (f) 4 (bits) DDC FIFO Delay CTRL Adapt. Beamf. I FFT-1 Intellig. RFI Handling 1 RX 1 Beam 1    m I i Delay & RFI control Calibration/FFT Phase LUT Adaptive Beamf. Control Beam i m Rxi Calibration RX i k Beam k RX m Adaptive/multibeaming Block diagram (Deliverables)

  13. Thankyou

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