Tektronix AWG710B Manuel d'utilisateur télécharger pdf (Page 554)

100

101

Appendix F: Miscellaneous

F-4 AWG710&AWG710B 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.

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 actual

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.

n() xi()hn i–()

t 0=

N 1–

∑

1 2 ... 549 550 551 552 553 554 555 556 557 558 559 ... 579 580

Commentaires sur ces manuels

Pas de commentaire

Tektronix AWG710B Manuel d'utilisateur Page 554

Commentaires sur ces manuels

Produits connexes et manuels pour Générateurs d'électricité Tektronix AWG710B