.. highlightlang:: us

.. index:: deconv

.. _deconv:

deconv
======

.. us.tag  deconv ENGLISH fft New5508

The :ref:`deconv` performs the deconvolution of vector *u* and vector *v*.

.. function::  q = deconv(v, u)

.. us.return

**Return Value**

*q* is the deconvolution of *u* and *v*.
 
.. us.params

**Parameters**

.. uparam:: u

   *u* is a real vector.

.. uparam:: v

   *v* is a real vector.

.. us.example

**Example**

::

   u = [10,20,30,40];
   v = [1,2,3];
   c = conv(u, v);
   c
       10.0000    40.0000   100.0000   160.0000   170.0000   120.0000 
   v2 = deconv(c, u); // restore the signal
   v2
       1.0000     2.0000     3.0000 

.. seealso::
   :ref:`overview-mathematic`,
   :ref:`conv`

:sub:`id-779775`