Table of Contents
Advertisement
12.5.7. 10: User-defined Weighting E,
11: User•defined Weighting A
0 ,
12: User-defined Weighting A
1 ,
13: User-defined Weighting A
2 ,
14: User-defined Weighting A
3 ,
15: User-defined Weighting A
4
Special Parameters 10 to 15 control the User-defined Weighting function which can be
selected using the Weighting Function fields in the MEASUREMENT SETUP. The User-
defined Weighting function is:
W(n)
=
2
E
[
A
0
-
_
A
1
cos( n
2
7r)
+
A
2
cos ( 2n
2
7r)-A
3
cos( 3n
2
7r)
+
A
4
(4n
2
7r)]
32768
N
N
N
N
0
~
n
~
N-1
N
=
1024 if in Zer:o Pad Mode
N = 2048 if not in Zero Pad mode
The sum of the coefficients A
0
to A
4
must be equal to or less than 32768.
12.5.8. 16: Transient Taper L
Special Parameter 16 is used to define the width in number of samples of a leading
half-cosine taper added to the Transient Weighting function. The resultant weighting
function is selected by setting the Weighting Function fields of the MEASUREMENT
SETUP to Transient.
12.5.9. 17: Transient Taper T
Special Parameter 17 is used to define the width in number of samples of a trailing
half-cosine taper added to the Transient Weighting function. The resultant weighting
function is selectec;t by setting the Weighting Function fields of the MEASURMENT
SETUP to Transient.
12.5.10 18: Exponential Taper
Special Parameter 18 is used to define the width in number of samples of a leading
half-cosine taper added to the Exponential Weighting function. The resultant weighting
function is selected by setting the Weighting Function fields of the MEASUREMENT
SETUP to Exponential.
12.5.11. 19: Exponential Delay
136
Special Parameter 19 is used to define a delay in number of samples from the shift
setting of the ExpQnential Weighting function to the start of the exponential decay
defined by the width setting. During the delay, the weighting function equals 1. The
resultant weighting
1unction
is selected by setting the Weighting Function fields of the
MEASUREMENT SETUP to Exponential.
Advertisement
Table of Contents
