High-dynamic Range Radio Astronomy Systems, Interference Mitigation Strategies, and a Test Setup for Experimenting Dynamic Spectrum Sharing

The electromagnetic spectrum is used by both ‘active’ and ‘passive’ services. Active services span a wide variety of technologies such as wireless internet and telecommunications. Passive services are remote sensing and radio astronomy. So far, distinct frequency bands have been allocated around the world for these different services. It has now been realized that this classic model cannot accommodate the demands of next-generation communications technology. One proposal to meet this mounting demand is for services to dynamically share the spectrum. Successful adoption of dynamic spectral sharing hereby hinges on implementing novel and advanced techniques and the technology that may make that possible [1].