The RFI-MitigationWorkshop



IAU (Division X, RFI Mitigation Working Group),

EC-ICN, Infrastructure Cooperation Network in Radio Astronomy

MPIfR(Max-Planck-Institut für Radioastronomie)

took place from 28th to 30th March, 2001

This page is under construction. Some of the few contributions, which have reached IUCAF, can be opened from here.
The selection is arbitraray! More links will be installed later!

The workshop visited the Effelsberg 100 m Radio Telescope

Wednesday, March 28th

10:00 opening of the workshop,

10:00 Welcome

10:10 Introduction, organisational matters, etc.

10:20 The Regulatory Environment session chair: Tom Gergely

10:20 Willem Baan: The regulatory environment (Rev.)

11:00 Cafe break

session chair: Willem Baan

11:20 Tom Gergely: The regulatory Zoo, or: regulations spanning VLA L-band

11:40 Klaus Ruf: Rec. 66

12:00 Stella Lioubtchenko: Computer simulation of interference effects on radioastronomical observations

12:20 cancelled

12:40 Lunch

14:00 Robust Receivers session chair: Rick Fisher

14:00 Arnold van Ardenne: Impact of RFI on system design (Rev.)

14:40 Russel Gough: Robust receivers, a system view

15:00 Carlo Rossolen: The new generation of robust receivers at Nancay

15:20 Tea break

session chair: Jim Cohen

15:40 F. Schilliro: Noto contribution to the LSF-RFI Robust Receiver Project

16:00 Valeri Altunin: RFI mitigation in space-based radio astronomy

16:20 Jerzy Usowicz: Evaluation tests of SE28 Monte Carlo software

Thursday, March 29th

09:00 Practical Problems at Observatories session chair: Alan Roy

09:00 Rick Fisher: Multi-path measurements using 1.3 GHz radar signals received by the GBT

09:20 Vladimir Kaseko: Interference environment at Pushino Radio Observatory

09:40 Wolfgang Reich: Interference problems at the Effelsberg radio telescope

09:55 Ernst Fürst: Interference problems at the Effelsberg radio telescope (cont.)

10:10 Dave Graham: (no) RFI in VLBI

10:30 Cafe break

10:50 Digital Signal Processing and Algorithms session chair:Tasso Tzioumis

10:50 Peter Fridman: RFI mitigation with real-time DSP (Rev.)

11:30 Michael Kesteven: Post-correlation interference excission

11:50 Jim Cohen: COBRA, a digital receiver at Jodrell Bank

12:10 Steve Ellingson: OH burried under GLONASS brought back to live with DSP

12:30 cancelled

12:50 Lunch

14:00 Array Processing session chair: Michael Kesteven

14:00 Alle-Jan van der Veen and Albert-Jan Boonstra: Exploiting the spatial signature of communication signals received at the WSRT (Rev.)

1. theory of spatial projections to mitigate interference (AJvdV)

2. measurements (RFI stationarity and suppression results) (AJB)

3. description of measurement system (AJB)

14:45 Amir Leshem: Complexity approach to imaging

15:05 Peter Fridman: Phase-only RFI mitigation for tide-array configurations

15:25 Steve Ellingson: Practical limitations for null-formig using large wide-band arrays

15:45 Tea break

session chair: Steve Ellingson

16:05 Peter Fridman: Performance boundaries for radio astronomy arrays with RFI mitigation by spacial filtering

16:25 Grant Hampson: THEA RF beamforming calibration: results

16:45 Geoff Bower: RFI mitigation with RAP, the Rapid Array Prototype

Friday, March 30th

09:00 Analog Filtering session chair: Ken Tapping

09:00 Reinhard Keller: Analog filtering (Rev.)

09:40 Prof. Chaloupka: HTSC filtering

10:00 Mike Davis: Characteristics of radio astronomy receivers relevant to the rejection of emissions in adjacent and near-by bands

10:20 cancelled

10:40 Cafe break

11:00 Monitoring standards and equipment session chair: Wim van Driel

11:00 Albert-Jan Boonstra: Radiofrequency monitoring: purpose, methods, and formats (Rev.)

11:40 Herold Dehling: Monte Carlo methods for measuring spectrum occupancy

12:00 Vincent Clerc: RFI monitoring and analysis at decameter wavelengths

12:20 Jader Monari: Sentinel II, a new system for RFI monitoring

12:40 Lunch

14:00 Conclusions of the workshop session chair: Klaus Ruf

14:00 All:

o organization of continuation of work,

o foundation of IUCAF interference mitigation work,

o discussion of final report,

o identification of input to ITU-R WP7D