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This paper compares results of a simulation study and experimental measurement campaign designed to evaluate the performance of a DTV-based passive radar. The simulations considered a tower-mounted receiver in Springfield, Ohio, and predicted the accuracy of localizing airborne targets using the illuminations of regional transmitters. The predicted coverage area was found to vary with the selection...
This paper presents results of a simulation study quantifying the expected importance of cochannel interference (CCI) in a passive radar using Advanced Television Systems Committee (ATSC) illuminators. CCI stations broadcasting on the same frequency as the illuminator are modeled as additional direct path interference. It is found that spatial nulls alone can be insufficient to suppress CCI in small...
Accurately predicting propagation loss is critical to determining if an area can support passive bistatic radars (PBRs), which must rely on illuminators of opportunity and might operate near the threshold of detection for weak targets. Models available to calculate propagation loss vary in their complexity and might include factors such as terrain, refraction, clutter, and multipath. This paper reports...
A case study of the trade off between fidelity and complexity is presented for a passive radar simulator. Although it is possible to accurately model the underlying physics, signal processing, and environment of a radar, the resulting model might be both too complex and too costly to evaluate. Instead, simplifications of various model attributes reduce the complexity and permit fast evaluation of...
This paper describes the simulation approach and model for a software tool used to analyze passive radar scenarios. A database of known transmitters includes more than 250,000 sources from FM radio, digital television, cellular, and aeronautical radio-navigation aids. Terrain is considered using digital elevation maps and the Irregular Terrain Model. The tool calculates the expected detection and...
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