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    <title>Measurement Tools</title>
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        <type></type>
        <name>snr_est_type_t</name>
        <qualifiedname>gr::digital::snr_est_type_t</qualifiedname>
        <enumvalue id="group__measurement__tools__blk_1gga56518da55fdaa3723f89e20f2db2ca12a204d2b2cfc4aaf860fe56445aff6432f" prot="public">
          <name>SNR_EST_SIMPLE</name>
          <initializer>= 0</initializer>
          <briefdescription>
          </briefdescription>
          <detaileddescription>
          </detaileddescription>
        </enumvalue>
        <enumvalue id="group__measurement__tools__blk_1gga56518da55fdaa3723f89e20f2db2ca12afacbe50e9ca04aa6feb581b71e65152d" prot="public">
          <name>SNR_EST_SKEW</name>
          <briefdescription>
          </briefdescription>
          <detaileddescription>
          </detaileddescription>
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          <name>SNR_EST_M2M4</name>
          <briefdescription>
          </briefdescription>
          <detaileddescription>
          </detaileddescription>
        </enumvalue>
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          <name>SNR_EST_SVR</name>
          <briefdescription>
          </briefdescription>
          <detaileddescription>
          </detaileddescription>
        </enumvalue>
        <briefdescription>
<para>A block for computing SNR of a signal. </para>
        </briefdescription>
        <detaileddescription>
<para>Below are some ROUGH estimates of what values of SNR each of these types of estimators is good for. In general, these offer a trade-off between accuracy and performance.</para>
<para><itemizedlist>
<listitem><para>SNR_EST_SIMPLE: Simple estimator (&gt;= 7 dB) </para>
</listitem>
<listitem><para>SNR_EST_SKEW: Skewness-base est (&gt;= 5 dB) </para>
</listitem>
<listitem><para>SNR_EST_M2M4: 2nd &amp; 4th moment est (&gt;= 1 dB) </para>
</listitem>
<listitem><para>SNR_EST_SVR: SVR-based est (&gt;= 0dB) </para>
</listitem>
</itemizedlist>
</para>
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