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A POMDP approach to adaptive wideband spectrum sensing based on sub-Nyquist sampling

机译：基于亚奈奎斯特采样的POMDP自适应宽带频谱感知方法

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摘要

This poster considers the problem of opportunistically accessing a wide range of frequency band. A major obstacle is that it is infeasible to perform Nyquist sampling on the wideband signal. We propose an adaptive sensing scheme based on a sub-Nyquist sampling method, which is similar to the polyphase implementation of Nyquist sampling, but requires less A/D converters. This method adaptively selects part of wideband spectrum to do sub-Nyquist sampling, by exploiting its statistical properties. The computational overhead can be significantly reduced.
机译：该海报考虑了机会性地访问大范围频带的问题。一个主要的障碍是，对宽带信号进行奈奎斯特采样是不可行的。我们提出了一种基于子奈奎斯特采样方法的自适应传感方案，该方案类似于奈奎斯特采样的多相实现，但是需要较少的A / D转换器。该方法通过利用其统计特性，自适应地选择宽带频谱的一部分进行亚奈奎斯特采样。可以显着减少计算开销。

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