Slide 33
Slide 33 text
ݪཧ
Իͷฉ͑͜ΔྖҬͷԻѹΛɼฉ͑͜ͳ͍ྖҬͷԻѹΛ
ͱͨ͠߹ʹ֤εϐʔΧͷ࠶ੜ৴߸ΛٻΊΔٯ
Իͷہॴ࠶ੜٕज़
y
x
z
r0
rref
Φ
φs
P(rref , φ, 0, ω) = 1
P(rref , φ, 0, ω) = 0
Bright zone Circular loudspeaker array
Reference circle
Dark Zone
x
Linear sound source
lb
xb
Bright
Dark
shift
Dark
Window function
y
y = yb
P(x, yb) = 0
ײతͳઆ໌ ˞ݫີͰ͋Γ·ͤΜ
z = 0 [m]
[dB]
-1 0 1
X axis [m]
-1.5
-1
-0.5
0
0.5
1
1.5
Y axis [m]
-40
-30
-20
-10
0