paparazzi/conf/airframes/delta_wing_minimal_example.xml

<!DOCTYPE airframe SYSTEM "airframe.dtd">

<!-- Funjet Multiplex (http://www.multiplex-rc.de/), Jeti ECO 25
     Tiny 2.11 board (http://paparazzi.enac.fr/wiki/Tiny_v2)
     PerkinElmer TPS334 IR Sensors
     Tilted infrared sensor (http://paparazzi.enac.fr/wiki/Image:Tiny_v2_1_Funjet.jpg)
     XBee modem with AT firmware
     LEA 5H GPS
-->

<airframe name="Delta Wing">

  <firmware name="fixedwing">
    <target name="sim" 			board="pc"/>
    <target name="ap" 			board="tiny_2.11"/>

    <subsystem name="radio_control" type="ppm"/>
    <subsystem name="telemetry" 	type="transparent"/>
    <subsystem name="control"/>
    <subsystem name="attitude" 		type="infrared"/>
    <subsystem name="gps" 		    type="ublox"/>
    <subsystem name="navigation"/>
  </firmware>

  <firmware name="setup">
    <target name="tunnel" 	        board="tiny_2.11"/>
    <target name="setup_actuators" 	board="tiny_2.11"/>
  </firmware>

  <servos>
    <servo name="MOTOR"         no="0" min="1000" neutral="1000" max="2000"/>
    <servo name="AILEVON_LEFT"  no="2" min="1900" neutral="1521" max="1100"/>
    <servo name="AILEVON_RIGHT" no="6" min="1100" neutral="1510" max="1900"/>
  </servos>

  <commands>
    <axis name="THROTTLE" failsafe_value="0"/>
    <axis name="ROLL"     failsafe_value="0"/>
    <axis name="PITCH"    failsafe_value="0"/>
  </commands>

  <rc_commands>
    <set command="THROTTLE" value="@THROTTLE"/>
    <set command="ROLL"     value="@ROLL"/>
    <set command="PITCH"    value="@PITCH"/>
  </rc_commands>

  <section name="MIXER">
    <define name="AILEVON_AILERON_RATE" value="0.45"/>
    <define name="AILEVON_ELEVATOR_RATE" value="0.8"/>
  </section>

  <command_laws>
    <let var="aileron"  value="@ROLL  * AILEVON_AILERON_RATE"/>
    <let var="elevator" value="@PITCH * AILEVON_ELEVATOR_RATE"/>
    <set servo="MOTOR"           value="@THROTTLE"/>
    <set servo="AILEVON_LEFT"  value="$elevator + $aileron"/>
    <set servo="AILEVON_RIGHT" value="$elevator - $aileron"/>
  </command_laws>

  <section name="AUTO1" prefix="AUTO1_">
    <define name="MAX_ROLL" value="RadOfDeg(50)"/>
    <define name="MAX_PITCH" value="RadOfDeg(35)"/>
  </section>

  <section name="INFRARED" prefix="IR_">
    <define name="ADC_IR1_NEUTRAL" value="512"/>
    <define name="ADC_IR2_NEUTRAL" value="512"/>
    <define name="ADC_TOP_NEUTRAL" value="512"/>

    <define name="LATERAL_CORRECTION" value="-1"/>
    <define name="LONGITUDINAL_CORRECTION" value="1"/>
    <define name="VERTICAL_CORRECTION" value="1.5"/>

    <define name="HORIZ_SENSOR_TILTED" value="1"/>
    <define name="IR1_SIGN" value="1"/>
    <define name="IR2_SIGN" value="-1"/>
    <define name="TOP_SIGN" value="-1"/>

    <define name="ROLL_NEUTRAL_DEFAULT" value="0" unit="deg"/>
    <define name="PITCH_NEUTRAL_DEFAULT" value="0" unit="deg"/>
  </section>

  <section name="BAT">
    <define name="CATASTROPHIC_BAT_LEVEL" value="9.3" unit="V"/>
  </section>

  <section name="MISC">
    <define name="NOMINAL_AIRSPEED" value="15." unit="m/s"/>
    <define name="CARROT" value="5." unit="s"/>
    <define name="KILL_MODE_DISTANCE" value="(1.5*MAX_DIST_FROM_HOME)"/>
    <define name="CONTROL_RATE" value="60" unit="Hz"/>

    <define name="DEFAULT_CIRCLE_RADIUS" value="120."/>
  </section>

  <section name="VERTICAL CONTROL" prefix="V_CTL_">
    <define name="POWER_CTL_BAT_NOMINAL" value="11.1" unit="volt"/>
    <!-- outer loop proportional gain -->
    <define name="ALTITUDE_PGAIN" value="-0.06"/> <!-- -0.024 -->
    <!-- outer loop saturation -->
    <define name="ALTITUDE_MAX_CLIMB" value="2."/>

    <!-- auto throttle inner loop -->
    <define name="AUTO_THROTTLE_NOMINAL_CRUISE_THROTTLE" value="0.45"/>
    <define name="AUTO_THROTTLE_MIN_CRUISE_THROTTLE" value="0.35"/>
    <define name="AUTO_THROTTLE_MAX_CRUISE_THROTTLE" value="0.85"/>
    <define name="AUTO_THROTTLE_CLIMB_THROTTLE_INCREMENT" value="0.2" unit="%/(m/s)"/>
    <define name="AUTO_THROTTLE_PGAIN" value="-0.023"/> <!-- -0.012 -->
    <define name="AUTO_THROTTLE_IGAIN" value="0.01"/>
    <define name="AUTO_THROTTLE_PITCH_OF_VZ_PGAIN" value="0.05"/>

    <!-- auto pitch inner loop -->
    <define name="AUTO_PITCH_PGAIN" value="-0.06"/> <!-- -0.03 -->
    <define name="AUTO_PITCH_IGAIN" value="0.0"/>
    <define name="AUTO_PITCH_MAX_PITCH" value="0.35"/>
    <define name="AUTO_PITCH_MIN_PITCH" value="-0.35"/>

    <define name="THROTTLE_SLEW" value="0.1"/>
  </section>

  <section name="HORIZONTAL CONTROL" prefix="H_CTL_">
    <define name="COURSE_PGAIN" value="-0.9"/>
    <define name="ROLL_MAX_SETPOINT" value="0.70" unit="radians"/> <!-- 0.5 -->
    <define name="PITCH_MAX_SETPOINT" value="0.5" unit="radians"/>
    <define name="PITCH_MIN_SETPOINT" value="-0.5" unit="radians"/>

    <define name="ROLL_PGAIN" value="6600."/>
    <define name="AILERON_OF_THROTTLE" value="0.0"/>
    <define name="PITCH_PGAIN" value="-5500."/>
    <define name="PITCH_DGAIN" value="0.4"/>

    <define name="ELEVATOR_OF_ROLL" value="2400"/>
  </section>

  <section name="NAV">
    <define name="NAV_PITCH" value="0."/>
    <define name="NAV_GLIDE_PITCH_TRIM" value="0"/>
  </section>

  <section name="FAILSAFE" prefix="FAILSAFE_">
    <define name="DELAY_WITHOUT_GPS" value="2" unit="s"/>
        <define name="DEFAULT_THROTTLE" value="0.3" unit="%"/>
        <define name="DEFAULT_ROLL" value="0.3" unit="rad"/>
        <define name="DEFAULT_PITCH" value="0.5" unit="rad"/>
    <define name="HOME_RADIUS" value="100" unit="m"/>
  </section>

  <section name="SIMU">
    <define name="YAW_RESPONSE_FACTOR" value="0.5"/>
  </section>

</airframe>