Service manual

WLAN TX Measurements
R&S
®
FSV-K91/91n/91ac/91p
24Operating Manual 1176.7649.02 ─ 04
frequency
compensation
FIR
FFT
estimation
of
gain, frequency, time
user defined
compensation
payload
window
packet search:
1.coarse timing
2.fine timing
timing
LS
pilot
table
estimate
data symbols
channel
estimation
measurement
of
parameters
pilots + data
f
s3
= 20MHz
e
-j

IF
·kT
S2

r(i)
r
l,k
a
l,k
r'
l,k
data
r''
l,k
1
f
s1
=128MHz
r
IF
(t)
Resampler
ADC
full
compensation
N = 64
f
coarse

H
k
(LS
)
g
l
H
k
(PL)

f
rest
, d

l

l
H
k
H
k
a
l,k
~ ~ ~
Fig. 3-1: Signal processing of the IEEE 802.11a application
Signal Processing of the IEEE 802.11a Application