Double-directional channel with the spherical harmonics

摘要

There is an approach that extracts or de-embeds the transmitting and receiving antennas from the multipath radio channels, as they are parts of communication devices of the channel in particular in the state-of-art MIMO technology. This approach is called double-directional channel, since it constructs a radio propagation model independent of antennas. This paper presents to construct double-directional channel with spherical harmonics to try to express antennas and propagation properties for the preparation of detailed data analysis, the convergence property of the antenna pattern reconstruction by truncated numbers of the spherical harmonics.