Aeroflex NAV 2000R Operation Manual page 61

FIGURE 4-1: VOR SIGNAL GENERATOR BLOCK DIAGRAM
The following equation describes the VOR mode:
A c SIN(w c t i - (df/f m ).COS(w m t i ))
+ A v SIN(w v t i ) + A i SIN(w i t i )
where,
A c = Amplitude of the carrier signal.
A v = Amplitude of the reference signal.
A i = Amplitude of the ident signal.
w c t i = Instantaneous phase of the carrier.
w m t i = Instantaneous phase of the modulation signal.
w v t i = Instantaneous phase of the reference.
w i t i = Instantaneous phase of the ident tone.
df = Peak frequency deviation = +/- 480 Hz
f m = Frequency modulation = 30 Hz
NAV 2000R SIGNAL GENERATOR - REV. 0 – JULY 26, 2007 - PG 4-5
Aeroflex Operation Manual