109 lines
4.6 KiB
Plaintext
109 lines
4.6 KiB
Plaintext
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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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# ------ UNCLASSIFIED ------
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# BLUE_FCR_RADAR_1
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#
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# This is the threat detection, tracking and guidance radar for BLUE_SR_SAM.
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#
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# NOTE: In reality this is a multi-function radar with many modes. Everything
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# is collapsed to a single mode.
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###############################################################################
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#
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# ***** WARNING ***** WARNING ***** WARNING ***** WARNING ***** WARNING *****
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#
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# This definition is intended to be EXPORTABLE. It is defined using publicly
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# available, attributable sources. DO NOT ADD ANYTHING BASED ON OTHER SOURCES!
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#
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# ***** WARNING ***** WARNING ***** WARNING ***** WARNING ***** WARNING *****
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#
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###############################################################################
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#
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# References: (PDF files contained in the subdirectory blue_fcr_radar_ref)
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#
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# 1) Jane's JREW AN/MPQ-53/-65, 014-Aug-2009
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# a) C band (4-8 gHz
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# b) Antenna is 2.44 m diameter, 5,161 element phased-array
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# c) 3-170 km detection range.
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# d) Search sector is 90 deg, track is 120 deg
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#
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# 2) http://www.globalsecurity.org/space/library/policy/army/fm/3-01-85/appb.htm
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# a) 'Radar antenna is positioned at the forward end of the shelter and is
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# erected to a fixed 67.5 deg angle relative to the horizontal plane'.
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#
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# 3) http://www.mobileradar.org/radar_descptn_2.html
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# a) AN/MPQ-53 can track 50 targets and control 9 missiles.
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# (Other sources have said it can track 100 targets)
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###############################################################################
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antenna_pattern BLUE_FCR_RADAR_1_ANTENNA
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circular_pattern
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beamwidth 1.0 deg # Typical for phased-array tracker
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peak_gain 40.0 db # Typical for phased-array tracker
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end_antenna_pattern
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sensor BLUE_FCR_RADAR_1 WSF_RADAR_SENSOR
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pitch 67.5 deg # Ref 2
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frame_time 1 sec
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# This is just for culling purposes
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maximum_range 200 km # Ref 1, plus a little slop
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electronic_beam_steering azimuth_and_elevation
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electronic_beam_steering_limit 60 deg # Ref 1, 1/2 of track sector
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electronic_beam_steering_loss_exponent 1.4 # Typical for phased-array
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scan_mode azimuth_and_elevation
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azimuth_scan_limits -60 deg 60 deg # Same as steering limits
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elevation_scan_limits -60 deg 60 deg # Same as steering limits
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transmitter
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antenna_pattern BLUE_FCR_RADAR_1_ANTENNA
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frequency 6 ghz # Ref 1, C band (4-8)
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# Nothing was specified about the power. But something must be given so the model
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# can compute a receiver noise power that results in a detection range of 170 km.
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#
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# The actual power isn't important because passive detection of the transmitter is
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# not being considered.
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power 50 kw
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# We don't know anything else about the transmitted signal (pulse width, PRF,
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# pulse_compression), so nothing is supplied.
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end_transmitter
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receiver
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antenna_pattern BLUE_FCR_RADAR_1_ANTENNA
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# We don't know anything about the receiver (noise figure, etc.) The effective
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# noise power is derived by the model to get the required nominal detection range.
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#
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# This will probably result in a ridiculously low effective noise power, but
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# because we don't know anything about the transmitted signal modulation, we just
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# have let it ride. It shouldn't be important because we aren't worried about jamming
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# or passive detection.
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end_receiver
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detection_threshold 12.8 db # Nominal Swerling case 1, Pd=0.5
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one_m2_detect_range 170 km # Ref 1
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hits_to_establish_track 2 3
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hits_to_maintain_track 1 3
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reports_range
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reports_bearing
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reports_elevation
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reports_velocity
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reports_iff
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end_sensor
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