抄録
I have been proposing the converted Nearfield Acoustic Holography (NAH), the NAH with extra spatial spectrums. This method can overcome the sampling limitation of NAH, and realize the quick measurement in high frequency. In this research, the far field measurement of proposing method is researched. The numerical simulations and experiments are performed in high frequency and far field measurement. As a result, the resolution of reconstructed images shows significant improvement compared with the original NAH. However, the AH also show good resolution in its reconstructed images in high frequency. The resolutions of reconstructed images of proposing method is same level with the AH.
