Experimental study of coherent accumulation based on sequence shifting and a genetic algorithm Article

Dong, H, Li, G, Ao, M et al. (2017). Experimental study of coherent accumulation based on sequence shifting and a genetic algorithm . Applied Optics, 56(13), 3824-3830. 10.1364/AO.56.003824

cited authors

  • Dong, H; Li, G; Ao, M; Yang, C; Liu, Y

abstract

  • Because there is a certain phase difference between the two adjacent samples of an analog-to-digital converter for a heterodyne signal, we propose to eliminate the random phases in the coherent accumulation by shifting the sampling sequences with different steps. A genetic algorithm is used to determine the shifting steps of the sequences. An experiment has been conducted to verify the effectiveness of our approach. The results prove that the approach can greatly increase the strength of the heterodyne signal compared with the accumulation with random phases. Our approach is easier to implement in comparison with existing technologies.

authors

publication date

  • May 1, 2017

published in

Digital Object Identifier (DOI)

start page

  • 3824

end page

  • 3830

volume

  • 56

issue

  • 13