普勒效应.pdf

1 f x x x x ⎛ ω ⎞ p p 0 cos ⎜ωt =− x ⎟ 1-1 c ⎝ 0 ⎠ VS c0 t V (t −x c ) S 0 x x −V (t −x c ) 0 S 0 x (x −V t) /(1−M ) 1-2 0 S S M = V /c V M S S 0 S S 1-2 1-1 ⎧ ω ⎛ x ⎞⎫ p p 0 cos⎨1−M ⎜⎜t −c0 ⎟⎟⎬ ⎩ S ⎝ 0 ⎠⎭ 1 , : 1−M S f f S 1-3 1−M S V : r V f M f r (1+ ) (1+ )f 1-4 r r c 0 V M r V M r r r c 0 V V : S r