Quantitative Measurement of Radio Frequency Interference for SMOS Mission

Radio Frequency Interference

We describe the nature of the interference challenges facing radio astronomy in the next decade. These challenges will not be solved by regulation only, negotiation and mitigation will become vital. There is no silver bullet for mitigating against interference. A successful mitigation approach is most likely to be a hierarchical or progressive approach throughout the telescope and signal condit...

Radio Frequency Interference Mitigation in Radio Astronomy

Influence of vegetation on SMOS mission retrievals

Using the proposed Soil Moisture and Ocean Salinity (SMOS) mission as a case study, this paper investigates how the presence and nature of vegetation influence the values of geophysical variables retrieved from multi-angle microwave radiometer observations. Synthetic microwave brightness temperatures were generated using a model for the coherent propagation of electromagnetic radiation through ...

Statistics and Visualization of Radio Frequency Interference

This paper gives a summary of the results of a radio frequency interference mitigation project. Radio frequency interference (RFI) is a problem radio astronomers are facing increasingly in recent years. The goals of this project were: 1) investigate the cost vs. benefits of real-time RFI flagging, 2) determine ways of statistically flagging RFI by doing noise simulations, and 3) to develop a vi...

Modelling Framework for Radio Frequency Spatial Measurement

The main crux of this thesis was to produce a model that was capable of simulating the theoretical performance of different configurations for a spatial measurement system using radio frequency technology. It has been important to study new modalities of spatial measurement since spatial measurement systems are an enabling technology that have allowed for the creation of better medical procedur...