0

No error—analysis result ok.

1

Time series unsuitable for analysis (signal amplitude too low or interference present)

2

Signal to noise ratio < − 3 dB

3

Fading time >6_{
S
}

4

At least one crosscorrelation function maxima lies outside end points

5

Percentage time discrepancy >35 %

6

\( {V}_c^2<0 \)

7

Ground diffraction pattern analysis breaks down

8

Apparent velocity magnitude V
_{
a
} > 400 ms^{− 1}

True velocity magnitude V
_{
t
} > 200 ms^{− 1}

9

Difference between apparent V
_{
a
} and true V
_{
t
} direction exceeds 40°.

10

V
_{
a
} > 10V
_{
t
}

11

V
_{
t
} > 1.5V
_{
a
}

12

Poor fit to crosscorrelation function (CCF) maximum

13

At least one CCF maximum <0.2

14

Poor zerolag autocorrelation function (ACF) interpolation

15

Insufficient number of lags on main peak of mean autocorrelation function (MACF) to estimate fading time

16

Poor fit to MACF

17

Secondary maxima in MACF >0.5 (oscillatory)

18

Mean ACF >0.5 at end lags

19

One or more CCF maxima exceeds 1.0
