@article{oai:kyutech.repo.nii.ac.jp:00001906, author = {Kondo, Hiroshi and Takajho, Hiroaki}, issue = {12}, journal = {Memoirs of the Kyushu Institute of Technology. Engineering, 九州工業大学紀要. 工学}, month = {Mar}, pages = {43--48}, title = {Estmation of the Phase Spectrum and Its Application}, year = {1982} }