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sensors/radar/generic_ground_radar.txt
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199
sensors/radar/generic_ground_radar.txt
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# ****************************************************************************
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# CUI
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#
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# The Advanced Framework for Simulation, Integration, and Modeling (AFSIM)
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#
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# The use, dissemination or disclosure of data in this file is subject to
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# limitation or restriction. See accompanying README and LICENSE for details.
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# ****************************************************************************
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###############################################################################
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#
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# File: generic_ground_radar.txt
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#
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# ***** NOTICE *****
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#
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# This definition is not intended to be representative of the real system.
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# Some undefined characteristics of the system have been provided so the
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# achieved performance matches the values defined in the noted references.
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#
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# Reference:
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# Based on AN/TPS-1D search radar
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# (A) Model of AN/TPS-1D search radar.
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# Ref: "Radar System Analysis", Barton, P 238
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#
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# June 08: added to file repository
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#
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# UNCLASSIFIED
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###############################################################################
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#
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# Minimum Additional data needed in user's file
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# Specify the location and orientation of the sensor on the platform.
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# (e.g., location 0.0 0.0 -30 m)
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# Specify pitch of plane for antenna rotation (default = 0)
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# (e.g., pitch 0 deg)
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#
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# SNIPPET: example of how the sensor could be included in a simulation
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#
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// include_once generic_ground_radar.txt
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//
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// ... simulation setup & initialization commands
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//
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#
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# Setup a platform with ground radar sensor
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#
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// platform sensor_platform COMMAND_TOWER_TYPE
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// icon Tower # or: Ground_Radar
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// side red
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// category catTower
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//
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// position 00:00:00n 103:49:00e altitude 15 m msl
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// heading 0.0 deg
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//
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// edit sensor GENERIC_GROUND_RADAR
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// frame_time 0.1 sec
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// elevation_field_of_view -5.0 deg 89.0 deg
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// range_product 194.4 dBsm # overrides 1 m^2 detection
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// transmitter
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// power 0.0000001 MW
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// end_transmitter
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// end_sensor
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//
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// end_platform
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#
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# Setup a target platform
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#
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// platform UAV_|| UAV_TYPE
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// icon Global_Hawk
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// side blue
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// heading 180.0 deg
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//
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// route
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// position 00:50:00n 103:49:00e altitude 300 m msl
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// speed 200 knots
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// position 00:02:00n 103:49:00e altitude 300 m msl
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// speed 200 knots
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// end_route
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// end_platform
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#
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###############################################################################
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#-- Basic Antenna Pattern
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antenna_pattern GROUND_RADAR_ANTENNA_PATTERN
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constant_pattern
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peak_gain 28 dB # (A) antenna gain
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azimuth_beamwidth 4 deg # (A) azimuth beamwidth
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elevation_beamwidth 10 deg # (A) actual beamwidth
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elevation_beamwidth 10.5 deg # (A) w/ 0.5 deg error
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end_constant_pattern
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end_antenna_pattern
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#-- Basic Ground Radar Specification
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sensor GENERIC_GROUND_RADAR WSF_RADAR_SENSOR
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#-- Platform Part Commands
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off # default
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no_debug # default
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#-- Articulated Part Commands
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pitch 0 deg # default
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# slew_mode: [fixed|azimuth|elevation|both|azimuth_and_elevation]
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slew_mode azimuth # default: fixed
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# slew limits define ability of subsystem to respond to cue
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# if not cued, then oriented in direction spec'd by yaw, pitch, & roll
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//azimuth_slew_limits -180 deg 180 deg # default
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//elevation_slew_limits -5 deg 90 deg
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# The minimum_range, maximum_range, and field of view are not required.
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# They are simply used for quick culling and should be generous.
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# (i.e. the field_of_view limits should be probably be larger than the
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# corresponding slew limit because the beam can probably detect things
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# outside the slew limit).
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minimum_range 0 nm # default = 0
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maximum_range 160 nm # set to maximum "scope limit"
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# scan mode: [fixed|azimuth|elevation|both|azimuth_and_elevation]
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scan_mode azimuth # default: fixed
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elevation_scan_limits 0.0 deg 5.0 deg # default: -90.0 90.0
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azimuth_scan_limits -180.0 deg 180.0 deg # default
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#-- Sensor Level Commands
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show_calibration_data # display radar characteristics
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#-- Detection Scheduling Commands
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frame_time 10 sec # set to 6 RPM (A)
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#-- Beam Commands
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detector_law linear # [linear|square|log]
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//signal_processor simple_doppler
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# Default "minimum_doppler_speed" is zero
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# TPS-1D does not do Doppler processing
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// minimum_doppler_speed 0 kts
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//end_signal_processor
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number_of_pulses_integrated 1
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one_m2_detect_range 65 km
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probability_of_false_alarm 1.0e-6 # Default: 1.0e-8
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swerling_case 4 # Swerling model: [0|1|2|3|4]
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transmitter
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antenna_pattern GROUND_RADAR_ANTENNA_PATTERN
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# Enter antenna tilt parameter to specify constant angle of
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# antenna above horizon for all azimuths of its scan.
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# antenna_tilt 5 deg # Actual tilt (optical)
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# antenna_tilt 4.75 deg # Adjusted tilt (allowing for 4/3 earth)
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# antenna_tilt 0 deg # No tilt (used with double-beamwidth)
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antenna_tilt 4.75 deg # (A) w/ 0.5 deg error
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# NOTE: Any values for peak power and frequency can be entered
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# when using the simple "cookie-cutter" model because
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# range for detecting a target of a specified radar
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# cross section calculated using parameter: "one_m2_detect_range"
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power 100 kw # nominal peak power of radar transmitter
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frequency 3 ghz # nominal frequency of radar transmitter
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end_transmitter
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receiver
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# Specify antenna pattern for receiver (see its definition above)
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antenna_pattern GROUND_RADAR_ANTENNA_PATTERN
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# Enter antenna tilt parameter to specify constant angle of
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# antenna above horizon for all azimuths of its scan.
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# antenna_tilt 5 deg # Actual tilt (optical)
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# antenna_tilt 4.75 deg # Adjusted tilt (allowing for 4/3 earth)
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# antenna_tilt 0 deg # No tilt (used with double-beamwidth)
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antenna_tilt 5 deg
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end_receiver
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#-- Track Formation Commands
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azimuth_error_sigma 0.001 deg
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elevation_error_sigma 0.001 deg
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range_error_sigma 7.0 m
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# Default value for "hits_to_establish_track" is 1 1
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hits_to_establish_track 3 5 # 3 of last 5 scans to establish track
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# Default value for "hits_to_maintain_track" is 1 1
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hits_to_maintain_track 1 4 # 1 of last 4 scans to maintain track
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#-- Track Formation Commands
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reports_location
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reports_velocity
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reports_range
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reports_bearing
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reports_elevation
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reports_signal_to_noise
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reports_frequency
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//reports_side
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#-- Track Filter Commands
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filter WSF_ALPHA_BETA_FILTER
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alpha 0.4
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beta 0.1
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end_filter
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end_sensor
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