mitra update & mfaa in mauritius · 2015-04-23 · mitra update & mfaa in mauritius girish...
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![Page 1: MITRA update & MFAA in Mauritius · 2015-04-23 · MITRA update & MFAA in Mauritius Girish Kumar Beeharry gkb@uom.ac.mu gkb999@yahoo.com Mauritius Radio Telescope Department of Physics](https://reader030.vdocument.in/reader030/viewer/2022041108/5f0b747b7e708231d43099e7/html5/thumbnails/1.jpg)
MITRA update & MFAA MITRA update & MFAA in Mauritiusin Mauritius
Girish Kumar Beeharry
Mauritius Radio Telescope
Department of Physics
Faculty of Science
University of Mauritius
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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OutlineOutline
MITRA update
- Recent
developments
- Tests
- Outputs
- Future & funding
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
MFAA in Mauritius
- Recent
developments
- Preliminary tests
- Future & funding
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Part I Part I MITRA MITRA
Co Principal Investigators
Stuart MacPherson & Gary van Vuuren
Masters Student DUT
Dominique Guelord Kumamputu Ingala
Department of Electronic Engineering
Faculty of Engineering &
the Built environment
Durban University of TechnologyMFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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MITRA: MITRA: Overall descriptionOverall description
- A sensitive high resolution multi-frequency dual polarity
- Frequency range 200 to <800 MHz
- Multiple independent stations of low-cost dipoles
- Baselines: ~metres, 250-500-1000-3000 km
- Instrument & station: modular & subsets
- Technical specifications function of number of stationsMFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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MITRA: Science MITRA: Science
- Solar: flares, coronal mass ejections - The Milky Way - Clusters of galaxies - Pulsars & Supernova remnants-- Low brightness wide sources- Transients - Spectral and recombination line observations(Deuterium 327.4 MHz) - Interstellar scintillation, Jupiter - Ionospheric and Space Weather
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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Sensitivity Sensitivity
-The w term
-Convolution & Gridding
-Primary beam
-Phasing & Bandwidth decorrelation
-Ionospheric effects-Ionospheric effects
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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uv coverage 2 stationsuv coverage 2 stations
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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uv coverage 9 stationsuv coverage 9 stations
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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ConnectivityConnectivity
http://manypossibilities.net/africa-undersea-cables
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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MITRA: Mauritius node MITRA: Mauritius node
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
J.ShibchurnJ.ShibchurnG.K.BeeharryG.K.Beeharry
& MRT team 2013& MRT team 2013
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MITRA: Durban node MITRA: Durban node
S.MacPherson, S.MacPherson, G. van Vuuren, G. van Vuuren, D Ingala DUT D Ingala DUT
20132013
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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MITRA: CorrelationMITRA: Correlation
FX FPGA Correlator
Low cost FPGA on the USRP board
CPU node
GPU array
ROACH board
Uniboard
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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MITRA: Correlation CPU Set upMITRA: Correlation CPU Set up
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
R. Louis & R. Louis & GKBeeharry GKBeeharry 2014-20152014-2015
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MITRA: Correlation CPU data setMITRA: Correlation CPU data set
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
R. Louis & R. Louis & GKBeeharry GKBeeharry 2014-20152014-2015
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MITRA: Correlation work flowMITRA: Correlation work flow
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
R. Louis & R. Louis & GKBeeharry GKBeeharry 2014-20152014-2015
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MITRA: Correlation run time MITRA: Correlation run time
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
R. Louis & R. Louis & GKBeeharry GKBeeharry 2014-20152014-2015
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MITRA: Correlation speed up MITRA: Correlation speed up per watt & cost per watt & cost
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
R. Louis & R. Louis & GKBeeharry GKBeeharry 2014-20152014-2015
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MITRA: Correlation visibilityMITRA: Correlation visibilityAmplitude & phaseAmplitude & phase
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
R. Louis & R. Louis & GKBeeharry GKBeeharry 2014-20152014-2015
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MITRA: DUT block diagram MITRA: DUT block diagram
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
D.G.K.Ingala
MTech DUT 2015
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MITRA: DUT USRP set upMITRA: DUT USRP set up
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
D.Ingala D.Ingala MTech DUTMTech DUT20152015
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MITRA: DUT MITRA: DUT 2 channel USRP obs set up2 channel USRP obs set up
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
D.Ingala D.Ingala MTech DUTMTech DUT20152015
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MITRA: DUT RFIMITRA: DUT RFI
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
D.Ingala D.Ingala MTech DUTMTech DUT20152015
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MITRA: DUT walk by 280 MHzMITRA: DUT walk by 280 MHz
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
D.Ingala D.Ingala MTech DUTMTech DUT20152015
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MITRA: DUT walk by 335 MHzMITRA: DUT walk by 335 MHz
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
D.Ingala D.Ingala MTech DUTMTech DUT20152015
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MITRA version 1.5MITRA version 1.516-antenna array March 2014 16-antenna array March 2014
C.L.Bissessur&C.L.Bissessur&G.K. BeeharryG.K. Beeharry 2013-20142013-2014
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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MITRA: Mauritius RFIMITRA: Mauritius RFI
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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MITRA: version 2.0MITRA: version 2.0
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
Dual Polarised Log Periodic Antenna 128-256-512
Low Noise Amplifier
Matching Circuit
Filters
Frequency: ~200 to ~420
Bandwidth: 220MHz
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MITRA: version 2.0 LNA MITRA: version 2.0 LNA
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
Required Specifications:Parameters ValuePower Consumption < 100mWGain >20dBUltra Low Noise Figure <0.5dBStabilization circuitry envisaged for flatter value over the frequency range
Matching circuit options under consideration:BalunRLC circuits: T or Pi matching NetworkQuarter wave impedance Transformer
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MITRA: version 2.0MITRA: version 2.0
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
Filters:
Band Pass filters between 200MHz and 420MhzBandstop filters to remove RFI in the bandTolerance < 5%
Signal Path and Transfer:
Fibre OpticsRFoF Modulators and Demodulators
ADC & Acquisition: Red pitaya board
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MITRA: version 2.0 MITRA: version 2.0 ArrayArray
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
Planar Sub stations: A 4Χ4 or 5Χ5 substation
Substations separated by 10 to 15m (grating lobes)
Array in a 200m E-W and 400m South geometry
Antennas will be power combined at each station (E/H pol)
24 channels have been catered for
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MITRA: version 2.0 MITRA: version 2.0 ScienceScience
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
Deuterium Line at 327.4 MHz
Recombination Lines
Red-shifted Hydrogen Line?
H intensity
Space Weather
Solar Science
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MITRA 2.0: set upMITRA 2.0: set up
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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Future: PlansFuture: Plans
- Collaborations: DUT, SUN, CPO, Astron/SKA
- Training ground for African students, academics, engineers, technicians,
- Bursary programme
- Running our MSc, more Mphi/PhDs (2 current)
- Funding!
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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Part IIPart II
MFAA in Mauritius MFAA in Mauritius
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
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MiM: Vivaldi antenna MiM: Vivaldi antenna
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
S.Joyseeree & S.Joyseeree & G.K.Beeharry G.K.Beeharry 2014-20152014-2015
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MiM: antenna comparison MiM: antenna comparison
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
S.Joyseeree & S.Joyseeree & G.K.Beeharry G.K.Beeharry 2014-20152014-2015
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MiM: tile comparison MiM: tile comparison
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
S.Joyseeree & S.Joyseeree & G.K.Beeharry G.K.Beeharry 2014-20152014-2015
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MiM: tests MiM: tests
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
S.Joyseeree & S.Joyseeree & G.K.Beeharry G.K.Beeharry 2014-20152014-2015
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MiM: phase shifter MiM: phase shifter construction construction
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
A.Jaulim & A.Jaulim & G.K.Beeharry G.K.Beeharry 2014-20152014-2015
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MiM: phase shifter tests MiM: phase shifter tests
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
A.Jaulim & A.Jaulim & G.K.Beeharry G.K.Beeharry 2014-20152014-2015
![Page 41: MITRA update & MFAA in Mauritius · 2015-04-23 · MITRA update & MFAA in Mauritius Girish Kumar Beeharry gkb@uom.ac.mu gkb999@yahoo.com Mauritius Radio Telescope Department of Physics](https://reader030.vdocument.in/reader030/viewer/2022041108/5f0b747b7e708231d43099e7/html5/thumbnails/41.jpg)
MiM: MiM: phase shifter PC →phase shifter PC →Arduino board → 2 D phase shifting Arduino board → 2 D phase shifting
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
A.Jaulim & A.Jaulim & G.K.Beeharry G.K.Beeharry 2014-20152014-2015
![Page 42: MITRA update & MFAA in Mauritius · 2015-04-23 · MITRA update & MFAA in Mauritius Girish Kumar Beeharry gkb@uom.ac.mu gkb999@yahoo.com Mauritius Radio Telescope Department of Physics](https://reader030.vdocument.in/reader030/viewer/2022041108/5f0b747b7e708231d43099e7/html5/thumbnails/42.jpg)
MiM: Red Pitaya boardMiM: Red Pitaya board for ADC for ADC
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
A.Jaulim & A.Jaulim & G.K.Beeharry G.K.Beeharry 2014-20152014-2015
![Page 43: MITRA update & MFAA in Mauritius · 2015-04-23 · MITRA update & MFAA in Mauritius Girish Kumar Beeharry gkb@uom.ac.mu gkb999@yahoo.com Mauritius Radio Telescope Department of Physics](https://reader030.vdocument.in/reader030/viewer/2022041108/5f0b747b7e708231d43099e7/html5/thumbnails/43.jpg)
MiM: front end LNA + filterMiM: front end LNA + filter
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
N.S.V. Vydelingum N.S.V. Vydelingum & G.K.Beeharry & G.K.Beeharry 2015 ongoing2015 ongoing
![Page 44: MITRA update & MFAA in Mauritius · 2015-04-23 · MITRA update & MFAA in Mauritius Girish Kumar Beeharry gkb@uom.ac.mu gkb999@yahoo.com Mauritius Radio Telescope Department of Physics](https://reader030.vdocument.in/reader030/viewer/2022041108/5f0b747b7e708231d43099e7/html5/thumbnails/44.jpg)
MiM: FutureMiM: Future
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry
- Complete observations with 1 D phase shifting
- Complete 2nd dimension phase shifter
- Analogue beamformer
- Frond end filtering & amplification circuit
- Analogue beamforming
- Digital filter bank
- Integration
- Up scale array
- Relevance to AERA3
- Funding!
![Page 45: MITRA update & MFAA in Mauritius · 2015-04-23 · MITRA update & MFAA in Mauritius Girish Kumar Beeharry gkb@uom.ac.mu gkb999@yahoo.com Mauritius Radio Telescope Department of Physics](https://reader030.vdocument.in/reader030/viewer/2022041108/5f0b747b7e708231d43099e7/html5/thumbnails/45.jpg)
Thanks!Thanks!
MFAA 2MFAA 2ndnd All hands on meeting Aveiro 20 All hands on meeting Aveiro 20thth April 2015 Girish Kumar Beeharry April 2015 Girish Kumar Beeharry