deconv

Deconvolution and polynomial division.

Syntax

• [q, r] = deconv(b, a)

Input argument

• a - row or column vectors

• b - row or column vectors

Output argument

• q - quotient: row or column vector

• r - remainder: row or column vector

Description

[q, r] = deconv(b, a) performs deconvolution on vector b by vector a using long division.

It returns the quotient q and remainder r such that b = conv(a, q) + r.

In the context of polynomial coefficients, deconvolving vectors b and a is akin to dividing the polynomial represented by b by the polynomial represented by a.

Example

b = [1; 2; -1];  % Dividend (x^2 + 2x - 1)
a = [1; 1];      % Divisor (x + 1)

[q, r] = deconv(b, a)

See also

conv, poly.

History

Version	Description
1.3.0	initial version

Author

Allan CORNET