Abstract
The nearfield acousticholography(NAH)method is frequentlyresearchednowadays.AndIamproposingtheconvertedNAHmethod using extra k-domain spectrums. In this report, the theoretical argumentisdescribed. Fromtheresult of mathematicalargument, it is proved that theproposing method may be a substitute of conventional method, and thatthereconstructed value by proposingmethod is able torecognizedastheroughapproximationofphysical values.