Analyzing wireless signal propagation

摘要

In some aspects, a wireless-spectrum analysis technique includes obtaining, at a computer system, a simulated spatial distribution of a wireless signal parameter (e.g., spectral power). The simulated spatial distribution is based on a computer-simulation of wireless signal propagation in a geographic region. A measured spatial distribution of the wireless signal parameter is obtained at the computer system. The measured spatial distribution is based on measurements performed by wireless sensor devices in the geographic region. Each of the wireless sensor devices is configured to provide local parameter measurements based on wireless signals detected by the wireless sensor device. The simulated spatial distribution is compared with the measured spatial distribution. In some instances, the simulated spatial distribution geographic region is modified based on the comparison.

主权项

1. A spectrum analysis method comprising:
obtaining, at computer system, a simulated spatial distribution of spectral power for a geographic region, the simulated spatial distribution based on a simulation of wireless signal propagation in the geographic region; obtaining, at the computer system, a measured spatial distribution of spectral power for the geographic region, the measured spatial distribution based on measurements by wireless sensor devices in the geographic region, each wireless sensor device configured to provide a local spectral power measurement based on wireless signals detected by the wireless sensor device; comparing, by operation of the computer system, the simulated spatial distribution with the measured spatial distribution; and modifying the simulated spatial distribution based on the comparison, wherein modifying the simulated spatial distribution comprises:
identifying, for a plurality of locations in the geographic region, differences between the simulated spatial distribution and the measured spatial distribution;generating an error mesh for the geographic region by spatially interpolating the differences for the plurality of locations; andmodifying the simulated spatial distribution based on the error mesh.