receiver_sim.py

receiver_sim.py

def wr_xml(DOA_res_fd, station_id, freq, location, heading, doa, conf, pwr)

Generates the XML output data.

• DOA_res_fd

  • XML output file descriptor.

• station_id

  • string, Name of the RDF station.

• freq

  • float, Frequency of the transmitter

• location

  • tuple, latitude and longitude of the RDF station

• heading

  • float, heading of the RDF station

• doa

  • LOB detected by the RDF station

• conf

  • Receiver confidence of the LOB

• pwr

  • SNR of the received signal.

def pathloss(distance)

Calculates the pathloss of the transmitted signal based on distance from the receiver. Returns SNR.

• distance
  • float, distance between receiver and transmitter in meters.

def rx(station_id, DOA_res_fd, rx_location, freq, tx_location, heading=0)

Calculates LOB and preps data for wr_xml.

• station_id

  • string, Name of the RDF station.

• DOA_res_fd

  • XML output file descriptor.

• rx_location

  • tuple, latitude and longitude of the RDF station

• freq

  • float, Frequency of the transmitter

• tx_location

  • tuple, latitude and longitude of the transmitter

• heading

  • float, heading of the RDF station, defaults to 0

def interpolate_two_points(coord1, coord2, speed, resolution)

Interpolates straight line path between two waypoints.

• coord1

  • tuple, coordinates of point A

• coord2

  • tuple, coordinates of point B

• speed

  • float, speed of moving object in meters per second.

• resolution

  • float, Generally the refresh rate of the loop running the moving object. Determines how many points to generate based on speed.

interpolate_all_points(waypoints, speed, resolution)

Takes a list of waypoints and interpolates a full list of coordinates to create a path that starts at point 0 and returns to point 0.

• waypoints

  • list of tuples, all waypoints to interpolate.

• speed

  • float, speed of moving object in meters per second.

• resolution

  • float, Generally the refresh rate of the loop running the moving object. Determines how many points to generate based on speed.