Digital Communication with Time-Reversal in a Multiple Scattering Medium

摘要: We present an experimental demonstration showing that contrary to first intuition the more scattering a mesoscopic medium is, information can be conveyed through it. used MIMO (Multiple Input Multiple Output) configuration: multi-channel ultrasonic time-reversal antenna is transmit random series of bits simultaneously different receivers which were only few wavelengths apart. Whereas transmission free error when multiple occurs in propagation medium, rate huge homogeneous medium. This discussed relation with number eigenvalues operator or strongly related focal spots transmitting create given region space. For communication purposes, it gives independent talk to; generally physics, conductance