channel.xml

springer_-modeling_and_simulation_for_rf_system_design所有配套光盘源码5-11章

<?xml version="1.0" encoding="ISO-8859-1"?>
<?xml-stylesheet href="/usr/local/vamdoc-1.0.2-kluwer/config/model.xsl" type="text/xsl"?>
<!DOCTYPE model SYSTEM "/usr/local/vamdoc-1.0.2-kluwer/config/model.dtd"><model>
  <symbol>../symbol/channel.png</symbol>
  <comments>
    <title>Additive white Gaussian noise channel</title>
    <model_name>CHANNEL(AWGN)</model_name>
    <library>N/A</library>
    <structure>N/A</structure>
    <description>This model describes channel model which includes effects<br></br>of additive white Gaussian noise in the time domain.<br></br>Two uniform distributed random numbers are produced that<br></br>are formed to Gaussian distribution. After digital generation<br></br>the signal is converted to the analog domain and lowpass<br></br>filtered.<br></br></description>
    <link_source><A HREF="../src/channel.vhd">See source code</A></link_source>
    <dependency>
      <library>IEEE_proposed</library>
      <design_unit>ELECTRICAL_SYSTEMS</design_unit>
    </dependency>
    <dependency>
      <library>IEEE</library>
      <design_unit>MATH_REAL</design_unit>
    </dependency>
  </comments>
  <interface>
    <parameter>
      <name>PS_DBM</name>
      <type>REAL</type>
      <default>-100.0</default>
      <unit></unit>
      <comment> power of input signal</comment>
    </parameter>
    <parameter>
      <name>S_TO_N</name>
      <type>REAL</type>
      <default>100.0</default>
      <unit></unit>
      <comment> signal to noise ratio</comment>
    </parameter>
    <parameter>
      <name>FS_NOISE</name>
      <type>REAL</type>
      <default>1.0E06</default>
      <unit></unit>
      <min> &gt;0.0</min>
      <comment> frequency of noise signal</comment>
    </parameter>
    <parameter>
      <name>TD</name>
      <type>REAL</type>
      <default>0.0</default>
      <unit></unit>
      <comment> time delay for input signal</comment>
    </parameter>
    <parameter>
      <name>RIN</name>
      <type>REAL</type>
      <default>50.0</default>
      <unit></unit>
      <comment> input resistance</comment>
    </parameter>
    <parameter>
      <name>ROUT</name>
      <type>REAL</type>
      <default>50.0</default>
      <unit></unit>
      <comment> output resistance</comment>
    </parameter>
    <port>
      <port_id>terminal</port_id>
      <name>P_in</name>
      <port_type>ELECTRICAL</port_type>
      <comment> input terminal</comment>
    </port>
    <port>
      <port_id>terminal</port_id>
      <name>P_out</name>
      <port_type>ELECTRICAL</port_type>
      <comment> output terminal</comment>
    </port>
  </interface>
</model>