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(7) 'u,#"9':'>m&&>"0#78>m9P>"F0?G;G' * ,#/ ,%2"ξ(f >"0?,#")) C Koλ-U0#G' *&>6:'$'18W0?73>m9P73!j!%0#,#>m9 s _[:'$' *0?>!%>m&E *,# !%>m9B"9;/ EW0 f _ F /<W94:' r 9' f ∼ 8πξ(f )/λ _Y"9':":;>m);0f0#G' h-.>"1818> F 739 s /,#$;:' j&E>Y:' 1_JaB"!% 0:>m9 0?G; ();,#>m)+ ,0?78max !M>"-
(8) 0?G' (cf 0!#!# 1[-.$'9'/0#78>m9;!Vw.,#>m$ s G'132"_ J (z) ∼ 0 -.>", n > 2|z|~d n. . n(f ) = (2fmax )−1/2 if f ≤ fmax n(f ) = 0 if f > fmax. 0v"ZW $'!#$BW18132 -.>m,P0#G' s ,%>m$'9':¡&E>"0?73>m9C_(¢!#)+ /0#,?"1V:' 9'!%7302]&E <W!#$',% :£W0 ¤ "!%/789'N:;$',#739 s N¥J$'73 0)+ ,#73>Y:l xw ¦A~ TMG'73!@&<2§a+ &o$'130#78)'1378 :¨aA2 ,# !%>m9B"9;/ -x"/0#>m,73-(9' / !%!?",2mKSTMG' ©W9 s $'18", :'73!%0?,%78a'$Y0?78>"9V>"-+187 s GA0!%/<W0%0? ,# :EaA2V0#G' &E78,#,%>m,#!_"739o0?G' MW9 s $'18",,% s 73>m9o>"-+789A0# ,# !%0 &b2za= &E>Y:; 1873 :aJ2 wH ~ κ p(θ) = 2 "9':0#G' 789A0? s ,?W0# :!#/W0#0# ,%789 s a+ 789 s :' 9'>W0?θ :aA2 _ F (G'b\" (-.>",j{bp*)')'&ª13>m!#!% ! K × κ ∼ 10−7 ξ(f ) ∼ 10. −8. . 10 Hz f. 2. m Hz−1/2.
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(10) . z ! "z #! [ %$ 0#G' ')(;g >W- s ,?<\6730?W0?73>m9B"1[!%7 s 9BW1 ¥6$;73\W"18 9A0h0#>z0?G' VaB"/vZJ!#/W0+* &[ 0j$;!j/<"131 h(f ) 0? ,#789 s 9;>m78!% "K - F -.>m1813> F 0?G' 78:; <"!>"-zy|{}wx)CK,mp.-"nA~5_ F /"9 />m&E)'$;0? l0#G' />m9A0#,#78a;$;0?73>m90?> h(f )2 >W-h0#G' 18 & 9A0N>"-d/52618789;:' ,*13>Y/"1873 :W0 z _>W-j"9 s $'1DW, F 78:;0#G dθ _B!# 9$'9':' ,hW9 s 18 θ -.,%>m& 0#G' &73,#,#>",d wI ~ λ4 2 p(θ)2 dΩ b(θ) n(f )2 dh2 (f ) = 4 2 2 GF ' ,% L 78!f0#G' 18 9 s 0?G wx¦"ZJ&4~f>W64π -
(11) 0#G'0 L/jz73, s >o/<\Y7^0?73 !KL9©w I ~5_;0#G' !#>m1378:"9 s 18 dΩ ,# )',# !# 9A0#!d0?G' ("9 s $'1DW,M,# s 78>m9>6//$;)'78 :PaA20?G' 18 &E 9A0>"-/2618739':' ,X!% 9@-.,#>m& 0?G' &E78,%,#>m,j F "13!#>o0vWZ" . dΩ = 2π sin θ dθ. K21h-0? ,X!#$'a'!0?7^0?$;0#789 s 0?G; -.$;9'/0#78>m9 z = a/ tan θ dh2 (f ) =. λ4 2 κ2 b(θ) sin3 θ dθ n(f )2 3 2 2 4 2 32π L a θ cos θ. p(θ). a'$;0_ F 7^0?G 0?G; L)B",?W& 50? ,%!0vWZ" 9(789j0#G' L)',% / :'789 s !% /50?78>"9C_ F 730?G !#>N0?GB0 . Z. θ1 θ2. sin3 θ e5.5θ dθ ' θ 4 cos2 θ λ2 κ h(f ) = La. Z. θ1 θ2. r. e5.5θ dθ ' 0.9 θ. 0.9B0 n(f ) 32π 3. F 37 0#G B0 ≡ 1.47 10−4 K z54 76 8! :9X #6%9 1h-0# ,X!#$'a;!%0?7^0?$;0#789 s 0#G' )B",?W& 50? ,%!_ s 0 F 9@0#G' 18> F 5OY/7^0vW0#78>m9,% s 73& W_ F GB<\" !#>N0?GB0. 10 Hz n(f ) ∼ 0.085 f h(f ) ∼ 2.5 10. −27. . 2. w3,A~. θi ≡ arctan(a/zi ). wQm~. w3-A~. h(f ) ∼ 3 10−26 n(f ) . _ F s 50 . Rd Hz−1/2. 10 Hz f. 2. Hz−1/2. wxnA~. _.
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