12
Measurement Data Arrays
Measurement data can be either complex values or real values. This depends on
the format selected by the user. For example, the data is real in logarithmic
magnitude format and the data is complex in polar format.
The measurement data is transferred in a
Variant
type variable, which represents
an array of
Double
type. To transfer one complex measurement, two adjacent array
cells are used. To transfer one real measurement two adjacent array cells are used
as well but the second cell is always equal to 0. Thus, measurement data array
size is a double number of the measurement points.
Measurement
1
Measurement
2
Measurement
N
Real Imag Real Imag
…
Real
Imag
Figure 4. Array of complex measurements
Measurement
1
Measurement
2
Measurement
N
Value
0
Value
0
…
Value
0
Figure 5. Array of real measurements