The invention discloses a
null steering inhibition communication method based on pre-coding. A space-time block coding technology is adopted in
processing at a sending end. The problem of spatial
null steering is converted into
time domain fluctuation. The phenomenon that the quality of received signals is deteriorated due to space angle and position constraints when a conventional antenna
receiver is used is avoided.
Null steering of a
radiation pattern produced by antenna unit synthesis is inhibited. Therefore,
time diversity gain is obtained, and the overall directive
gain of the two antennas can be up to 0dBi. Moreover, the sending method is low in implementation complexity. By synthesizing multiple wide-beam-
slot antenna units, 360-degree spherical
circular polarization of a directional pattern is realized.