256
Keysight EXG and MXG X-Series Signal Generators User’s Guide
Basic Digital Operation (Option 653/655/656/657)
Using Finite Impulse Response (FIR) Filters in the Dual ARB Real-Time Modulation Filter
4.
Continue entering the coefficient values from the table in step 1 until all 16 values have been
entered.
Duplicating the First 16 Coefficients Using Mirror Table
In a windowed sinc function filter, the second half of the coefficients are identical to the first half in
reverse order. The signal generator provides a mirror table function that automatically duplicates
the existing coefficient values in the reverse order.
1.
Press
Mirror Table
. The last 16 coefficients (16 through 31) are automatically generated and
the first of these coefficients (number 16) highlights, as shown in
Figure 9-19
Table 9-3
Coefficient
Value
Coefficient
Value
0
−
0.000076
8
−
0.035667
1
−
0.001747
9
−
0.116753
2
−
0.005144
10
−
0.157348
3
−
0.004424
11
−
0.088484
4
0.007745
12
0.123414
5
0.029610
13
0.442748
6
0.043940
14
0.767329
7
0.025852
15
0.972149
FIR table coefficient values,
may be from the factory
default values or entered by
the user.
Use the Goto Row menu
to move around and
make changes to the FIR
Values coefficient table.
