For the countermeasure of the congestion and the noise of airports, the systems of multiple and variable landing path are needed. For the purpose the systems using the doppler array are being tried in Europe and United State. In this paper frequency spectrum of far field radiated by the doppler array are analyzed to help to design the array. The relation between wave source function and far field and general formula of frequency spectrum are described first. And then the spectra of the fields by rectangular and Gauss type modulated wave sources moving point to point and radiating at the points are obtained. The analyses for general wave-type modulated wave source and also for continuously moving and radiating source are described in appendix.
ドップラ・アレイ・アンテナによる遠方界の周波数スペクトル
SA0124535.pdf
(552.38KB)
