| 摘要 |
<p>In a receiver in a wireless communication system, a plurality of radio frequency signal propagation characteristics associated with a signal transmitted from a transmitter in a coverage area are periodically measured (402). Next, the plurality of periodically measured radio frequency signal propagation characteristics are processed to produce a time averaged radio frequency signature, wherein the processing extracts the dominant features of the radio frequency signal propagation characteristics (410, 412). Then the time averaged radio frequency signature is compared with a spatially averaged radio frequency signature, and a figure of merit is generated in response to the comparison (414, 416). The processing may include decomposing a structured matrix containing vector representations of the plurality of periodically measured radio frequency signal propagation characteristics to extract a subspace that represents the dominant features of the radio frequency signal propagation characteristics of a signal transmitted from a transmitter in a coverage area of the wireless communication system.</p> |
