CONTENTS

Policy on Intellectual Property Right (IPR)
 1     Introduction
        1.1     Definition and characteristics of radio frequency interference
        1.2     Characteristics of astronomical signals
        1.3     Dealing with radio frequency interference
        1.4     ITU Standards
        1.5     Adoption of mitigation methods
        1.6     Effective observing techniques
 2     RFI mitigation methodology – Layers of mitigation
 3     Techniques for mitigating RFI
 4     Pro-active measures – Changing the RFI environment
        4.1     Regulatory and coordination measures
        4.2     Local measures
        4.3     Pre-detection & post-detection measures
 5     Spatial excision (nulling)
        5.1     Multi-antenna systems
        5.2     Subspace projections
        5.3     Post-correlation beamforming
        5.4     Reference antennas and reference beams
 6     Waveform subtraction
 7     Anti-coincidence methods
 8     Temporal excision (blanking and flagging)
        8.1     Temporal blanking
        8.2     Antenna-based digital processing
        8.3     Digital excision at correlation
        8.4     Post-correlation – Before or during imaging
 9     Implementation at the telescopes – A strategy
10     Conclusions