Rohde & Schwarz SFQ Operating Manual page 227

Menu Operation
FREQENCY
RATIO
SPEED
2072.5724.02
Entry of the ratio of the actual Doppler frequency shift to the Doppler
frequency setting with Ricean fading or FDOP fading switched on. The actual
Doppler frequency shift depends on the simulated angle of incidence of the
discrete component.
Fig.: 2.2.8-13 Doppler frequency shift with moving receiver
Entry of the speed v of the moving receiver.
The Doppler frequency f
and the frequency of the RF output signal f
parameter DOPPLER FREQ is automatically adjusted.
v
Setting range:
min
v
max
Note: If DOPPLER FREQUENCY has been selected as the parameter
under SETUP - PRESET - FADING –REFERENCE, the selected
SPEED will be recalculated when the RF frequency varies,
whereas the Doppler frequency remains constant.
(DOPPLER FREQ) is calculated from the speed
D
RF
9 2
⋅
0 03 10 . m s /
=
f
RF
≤ 99999
km h /
2.2.8.8
. On changing SPEED the
9
⋅
479 10
=
v
max
f
RF
SFQ
2
m s /
E-11