Optimal Time-Reversal Focusing by an Iterative Least-Squares Method

@inproceedings{Ma2009OptimalTF,
  title={Optimal Time-Reversal Focusing by an Iterative Least-Squares Method},
  author={Dengyong Ma and Jun Yang},
  year={2009}
}
In this paper, an iterative least-squares prefiltering method is presented for the optimal time-reversal focusing of a random array. By adopting an iterative prefilter into the emitter end, the autocorrelation of Green's function can be compensated for optimal focusing to achieve an ideal Dirac delta function. The prefilter's impulse response is estimated iteratively by minimizing the square error between the focusing signal and the source signal. Then, using these estimated prefilters the time… CONTINUE READING