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        <definition>static generic_encoder::sptr gr::fec::code::ldpc_gen_mtrx_encoder::make</definition>
        <argsstring>(const code::ldpc_G_matrix::sptr G_obj)</argsstring>
        <name>make</name>
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<para>Build an encoding FEC API object. </para>
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<para><parameterlist kind="param"><parameteritem>
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<parametername>G_obj</parametername>
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<parameterdescription>
<para>The <ref refid="classgr_1_1fec_1_1code_1_1ldpc__G__matrix" kindref="compound">ldpc_G_matrix</ref> object to use for encoding. </para>
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        <type>bool</type>
        <definition>bool gr::fec::code::ldpc_gen_mtrx_encoder::set_frame_size</definition>
        <argsstring>(unsigned int frame_size) override=0</argsstring>
        <name>set_frame_size</name>
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        <param>
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<para>Sets the uncoded frame size to <computeroutput>frame_size</computeroutput>. </para>
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<para>Sets the uncoded frame size to <computeroutput>frame_size</computeroutput>. If <computeroutput>frame_size</computeroutput> is greater than the value given to the constructor, the frame size will be capped by that initial value and this function will return false. Otherwise, it returns true. </para>
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        <type>double</type>
        <definition>double gr::fec::code::ldpc_gen_mtrx_encoder::rate</definition>
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        <name>rate</name>
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<para>Returns the coding rate of this encoder. </para>
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    <briefdescription>
<para>LDPC generator matrix encoder. </para>
    </briefdescription>
    <detaileddescription>
<para>A standard encoder class. This method is discussed in many textbooks; one is: Turbo Coding for Satellite and Wireless Communications by Soleymani, Gao, and Vilaipornsawai. Given a generator matrix in systematic form, <formula id="45">$\mathbf{G}=\left[\mathbf{I}_{k}|\mathbf{P}\right]$</formula>, where <formula id="46">$\mathbf{I}_{k}$</formula> is the identity matrix and <formula id="47">$\mathbf{P}$</formula> is the parity submatrix, the information word <formula id="48">$\bar{s}$</formula> is encoded into a codeword <formula id="43">$\overline{x}$</formula> via: <formula id="49">\[\overline{x}=\mathbf{G}^{T}\bar{s}\]</formula> </para>
    </detaileddescription>
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