# **************************************************************************** # CUI # # The Advanced Framework for Simulation, Integration, and Modeling (AFSIM) # # The use, dissemination or disclosure of data in this file is subject to # limitation or restriction. See accompanying README and LICENSE for details. # **************************************************************************** ############################################################################### # # File: generic_ground_radar.txt # # ***** NOTICE ***** # # This definition is not intended to be representative of the real system. # Some undefined characteristics of the system have been provided so the # achieved performance matches the values defined in the noted references. # # Reference: # Based on AN/TPS-1D search radar # (A) Model of AN/TPS-1D search radar. # Ref: "Radar System Analysis", Barton, P 238 # # June 08: added to file repository # # UNCLASSIFIED ############################################################################### # # Minimum Additional data needed in user's file # Specify the location and orientation of the sensor on the platform. # (e.g., location 0.0 0.0 -30 m) # Specify pitch of plane for antenna rotation (default = 0) # (e.g., pitch 0 deg) # # SNIPPET: example of how the sensor could be included in a simulation # // include_once generic_ground_radar.txt // // ... simulation setup & initialization commands // # # Setup a platform with ground radar sensor # // platform sensor_platform COMMAND_TOWER_TYPE // icon Tower # or: Ground_Radar // side red // category catTower // // position 00:00:00n 103:49:00e altitude 15 m msl // heading 0.0 deg // // edit sensor GENERIC_GROUND_RADAR // frame_time 0.1 sec // elevation_field_of_view -5.0 deg 89.0 deg // range_product 194.4 dBsm # overrides 1 m^2 detection // transmitter // power 0.0000001 MW // end_transmitter // end_sensor // // end_platform # # Setup a target platform # // platform UAV_|| UAV_TYPE // icon Global_Hawk // side blue // heading 180.0 deg // // route // position 00:50:00n 103:49:00e altitude 300 m msl // speed 200 knots // position 00:02:00n 103:49:00e altitude 300 m msl // speed 200 knots // end_route // end_platform # ############################################################################### #-- Basic Antenna Pattern antenna_pattern GROUND_RADAR_ANTENNA_PATTERN constant_pattern peak_gain 28 dB # (A) antenna gain azimuth_beamwidth 4 deg # (A) azimuth beamwidth elevation_beamwidth 10 deg # (A) actual beamwidth elevation_beamwidth 10.5 deg # (A) w/ 0.5 deg error end_constant_pattern end_antenna_pattern #-- Basic Ground Radar Specification sensor GENERIC_GROUND_RADAR WSF_RADAR_SENSOR #-- Platform Part Commands off # default no_debug # default #-- Articulated Part Commands pitch 0 deg # default # slew_mode: [fixed|azimuth|elevation|both|azimuth_and_elevation] slew_mode azimuth # default: fixed # slew limits define ability of subsystem to respond to cue # if not cued, then oriented in direction spec'd by yaw, pitch, & roll //azimuth_slew_limits -180 deg 180 deg # default //elevation_slew_limits -5 deg 90 deg # The minimum_range, maximum_range, and field of view are not required. # They are simply used for quick culling and should be generous. # (i.e. the field_of_view limits should be probably be larger than the # corresponding slew limit because the beam can probably detect things # outside the slew limit). minimum_range 0 nm # default = 0 maximum_range 160 nm # set to maximum "scope limit" # scan mode: [fixed|azimuth|elevation|both|azimuth_and_elevation] scan_mode azimuth # default: fixed elevation_scan_limits 0.0 deg 5.0 deg # default: -90.0 90.0 azimuth_scan_limits -180.0 deg 180.0 deg # default #-- Sensor Level Commands show_calibration_data # display radar characteristics #-- Detection Scheduling Commands frame_time 10 sec # set to 6 RPM (A) #-- Beam Commands detector_law linear # [linear|square|log] //signal_processor simple_doppler # Default "minimum_doppler_speed" is zero # TPS-1D does not do Doppler processing // minimum_doppler_speed 0 kts //end_signal_processor number_of_pulses_integrated 1 one_m2_detect_range 65 km probability_of_false_alarm 1.0e-6 # Default: 1.0e-8 swerling_case 4 # Swerling model: [0|1|2|3|4] transmitter antenna_pattern GROUND_RADAR_ANTENNA_PATTERN # Enter antenna tilt parameter to specify constant angle of # antenna above horizon for all azimuths of its scan. # antenna_tilt 5 deg # Actual tilt (optical) # antenna_tilt 4.75 deg # Adjusted tilt (allowing for 4/3 earth) # antenna_tilt 0 deg # No tilt (used with double-beamwidth) antenna_tilt 4.75 deg # (A) w/ 0.5 deg error # NOTE: Any values for peak power and frequency can be entered # when using the simple "cookie-cutter" model because # range for detecting a target of a specified radar # cross section calculated using parameter: "one_m2_detect_range" power 100 kw # nominal peak power of radar transmitter frequency 3 ghz # nominal frequency of radar transmitter end_transmitter receiver # Specify antenna pattern for receiver (see its definition above) antenna_pattern GROUND_RADAR_ANTENNA_PATTERN # Enter antenna tilt parameter to specify constant angle of # antenna above horizon for all azimuths of its scan. # antenna_tilt 5 deg # Actual tilt (optical) # antenna_tilt 4.75 deg # Adjusted tilt (allowing for 4/3 earth) # antenna_tilt 0 deg # No tilt (used with double-beamwidth) antenna_tilt 5 deg end_receiver #-- Track Formation Commands azimuth_error_sigma 0.001 deg elevation_error_sigma 0.001 deg range_error_sigma 7.0 m # Default value for "hits_to_establish_track" is 1 1 hits_to_establish_track 3 5 # 3 of last 5 scans to establish track # Default value for "hits_to_maintain_track" is 1 1 hits_to_maintain_track 1 4 # 1 of last 4 scans to maintain track #-- Track Formation Commands reports_location reports_velocity reports_range reports_bearing reports_elevation reports_signal_to_noise reports_frequency //reports_side #-- Track Filter Commands filter WSF_ALPHA_BETA_FILTER alpha 0.4 beta 0.1 end_filter end_sensor