Digital Signal Processing Reference
In-Depth Information
′
In Figs. 7.5, 7.6, 7.7, and 7.8, we plot
G
WN,2
[
h
(
ω
)] for the dipole, cardioid,
hypercardioid, and supercardioid, respectively, for several frequencies and
different values of
δ
.
For the beamformer
h
′
(
ω
), the directivity factor is
2
n
(
ω
)
e
ω
(
n −
1)
τ
0
3
n=1
H
′
′
G
DN,2
[
h
(
ω
)] =
.
(7.31)
′H
(
ω
)
Γ
DN
(
ω
)
h
′
h
(
ω
)
In Figs 7.9, 7.10, 7.11, and 7.12, we plot
G
DN,2
[
h
(
ω
)] for the dipole, cardioid,
hypercardioid, and supercardioid, respectively, for several frequencies and
different values of
δ
.
The gain of
h
′
′
(
ω
) for a point noise source is
2
n
(
ω
)
e
ω
(
n −
1)
τ
0
3
n=1
H
′
′
G
NS,2
[
h
(
ω
)] =
2
.
(7.32)
n
(
ω
)
e
ω
(
n −
1)
τ
0
cos
θ
N
3
n=1
H
′
Search WWH ::
Custom Search