Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

cheby1

Asked by Tom on 27 Feb 2012

Hi, I'm having problems finding something out something simple.

If I'm given this: -

[b,a] = cheby1(8,1,0.4); 
y = filter(b,a,x);

then what do the three digits in the brackets after 'cheby1' mean?

Also what does b, a and x mean?

Many thanks,

Tom

2 Comments

Matt Fig on 2 Nov 2012

Hi, I'm having problems finding something out something simple.

If I'm given this: -

[b,a] = cheby1(8,1,0.4); y = filter(b,a,x);

then what do the three digits in the brackets after 'cheby1' mean?

Also what does b, a and x mean?

Many thanks,

Tom

Matt Fig on 2 Nov 2012

Tom's question

Hi, I'm having problems finding something out something simple.

If I'm given this: -

[b,a] = cheby1(8,1,0.4); y = filter(b,a,x);

then what do the three digits in the brackets after 'cheby1' mean?

Also what does b, a and x mean?

Many thanks,

Tom

Tom

Tags

Products

No products are associated with this question.

2 Answers

Answer by Kevin Holst on 27 Feb 2012
Accepted answer

0 Comments

Kevin Holst
Answer by Honglei Chen on 27 Feb 2012

This is clearly explained in documentation.

doc cheby1

http://www.mathworks.com/help/toolbox/signal/ref/cheby1.html

x is the input signal, also see the doc

doc filter

0 Comments

Honglei Chen

Contact us