ss="sd">&quot;&quot;&quot;</span>
<span class="sd">    Adjusts the length of signal xf to variable &quot;length&quot;.</span>

<span class="sd">    Parameters</span>
<span class="sd">    ----------</span>
<span class="sd">    xf : np.ndarray [shape=(N, )], real or complex - valued</span>
<span class="sd">        Signal to be processed</span>

<span class="sd">    length : int</span>
<span class="sd">        Signal to be cross-correlated</span>

<span class="sd">    Returns</span>
<span class="sd">    ------