.. Perun PowerDesk Documentation
   file: dst_spectra.rst
   Copyright (c) 2016
   Perun Technologies

.. _spectra:

Performing Spectral Analysis
============================

In order to obtain spectrum of a signal it is enough to right-click on the signal in the :ref:_projectExplorer, and from the drop-down menu choose ``Compute Spectrum`` command. As a result, a new spectra will be added to the workspace. This spectra can be accessed by means of the ``Project Explorer``, under ``Project/Signals & Spectra\Spectra`` tree-item.

.. figure:: _static/images/spectral_analysis.png
  :figwidth: 70%
  :align: center

  An example of **PowerDesk** with **Signal Scope** in the left and **Spectrum Scope** in the right, showing a signal :math:`e^{-2t}\sin(20\pi t)` and its spectrum.