Tektronix AWG610 Manuel d'utilisateur télécharger pdf (Page 444)

100

101

Appendix F: Miscellaneous

F-4

AWG610 Arbitrary Waveform Generator User Manual

Convolution

The operation expressed by the following equation is called convolution. With

respect to a discrete system, convolution y(n) of a certain waveform x(n) and a

second one h(i) is expressed by the following equation. N is the number of items

of data.

Ă() +

1

+

()()

Periodic. The Periodic enables you to specify whether the two-waveforms must

be regarded as periodic during calculation. Below is an example showing

differences between non-periodic and periodic waveforms.

Waveform A = a0, a1, a2, a3, a4 (5 points)

Waveform B = b0, b1, b2 (3 points)

For nonperiodic case:

A*B = a0b0,

a0b1+a1b0,

a0b2+a1b1+a2b0,

a1b2+a2b1+a3b0,

a2b2+a3b1+a4b0,

a3b2+a4b1,

a4b2,

0, (8 points)

The data length of the waveform created is the total of the number of points of

the two-waveform files.

For periodic case:

A*B = a0b2+a1b1+a2b0,

a1b2+a2b1+a3b0,

a2b2+a3b1+a4b0,

a3b2+a4b1+a0b0,

a4b2+a0b1+a1b0,

(5 points)

Waveforms A and B are regarded as periodic during calculation. The count of the

operation of sum of products is equivalent to the length of the shorter waveform.

The resulting waveform’s cycle equals the same as the longer waveform. The

actually output segment of the waveform corresponds to one cycle. The starting

point value of the waveform equals the sum of products that is obtained with the

starting point values of waveforms A and B added.

1 2 ... 439 440 441 442 443 444 445 446 447 448 449 ... 465 466

Commentaires sur ces manuels

Pas de commentaire

Tektronix AWG610 Manuel d'utilisateur Page 444

Commentaires sur ces manuels

Produits connexes et manuels pour Générateurs Tektronix AWG610