Interferometer phase vs bearing
long pair, true phase
short pair (λ/2)
long pair, measured (wrapped)
±π wrap limits
True bearing vs the three estimates
true θ
short pair, coarse
long pair, naive
long pair, resolved
Geometry & signal
True bearing θ
20.0°
Frequency f
10.0 GHz
Long baseline d
1.49 cm
SNR
20.0 dB
Short pair fixed at λ/2
1.50 cm
d = λ/2
stretch d
Bearing estimates
θ = 20.0°
Short pair
λ/2 · coarse, unambiguous
—
—
Long pair, naive
inverts the wrapped reading
—
—
Long pair, resolved
short pair picks the cycle
—
—
d / λ
—
λ = — cm
Ambiguity
—
for a lone pair
Cycle
n
—
2π turns re-added