Propagation path estimation method and program and apparatus using the same

摘要

A propagation path estimation method using an imaging method according to the invention includes a step of, in a case where a reflectarray which causes reflection and scattering in a different direction (θ−η)° from a specular reflection direction θ° exists on a propagation path from a transmission point to a reception point RX of the radio wave, calculating a virtual reception point VRX by rotating the reception point RX about a rotation center point O, and estimating the propagation path by using the virtual reception point VRX.

主权项

1. A propagation path estimation method carried out by an apparatus, the propagation method using an imaging method, the propagation path estimation method comprising:
transmitting a radio wave by a transmitter; reflecting and scattering the radio wave in a different direction (θ−η)° from a specular reflection direction θ° on a propagation path by a reflect array structure on the propagation path; receiving, at a reception point RX, the radio wave reflected and scattered in the different direction by a receiver; rotating virtually the reception point RX by η° about a rotation center point O by a processor of the apparatus, the processor coupled to a storage medium that is provided inside application specific integrated circuit (ASIC) and the processor reading and writing information from and into the storage medium for the rotating; determining, by the processor, a reflection point RP of the radio wave on the reflect array structure based on the rotating; updating, by the processor, the rotation center point O when a distance between the reflection point RP and the rotation center point O does not satisfy a convergence condition; repeating, by the processor, the rotating and determining until the convergence condition is satisfied; estimating, by the processor, the propagation path of the radio wave when the convergence condition is satisfied; and applying, by the processor, the estimated propagation path to provide a required communication link quality in a wireless communication system.