# ****************************************************************************
# 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.
# ****************************************************************************
###############################################################################
#                          ------ UNCLASSIFIED ------
#                              BLUE_ABM_TTR Radar
#
#           This is the threat detection and tracking radar for blue_lr_sam
###############################################################################
#
# ***** WARNING ***** WARNING ***** WARNING ***** WARNING ***** WARNING *****
#
# This definition is intended to be EXPORTABLE. It is defined using publicly
# available, attributable sources. DO NOT ADD ANYTHING BASED ON OTHER SOURCES!
#
# ***** WARNING ***** WARNING ***** WARNING ***** WARNING ***** WARNING *****
#
###############################################################################
#
# References: (PDF files contained in the subdirectory blue_abm_ttr_ref)
#
# 1) Jane's JREW AN/TPY-2, 08-Jan-2009
#    a) X-band (8 to 12.5 GHz)
#    b) Trailer mounted, single faced 9.2 m^2 phased-array antenna with 25,344
#       solid-state transceiver modules
#    c) 1,000 km detection range.
###############################################################################

antenna_pattern BLUE_ABM_TTR_ANTENNA
   circular_pattern
      beamwidth                        1.0 deg              # Typical for phased-array tracker
      peak_gain                        40.0 db              # Typical for phased-array tracker
end_antenna_pattern

sensor BLUE_ABM_TTR WSF_RADAR_SENSOR

#  The antenna can be tilted to various angles. This is just a nominal value.
   pitch                               45 deg

   frame_time                          1 sec

   # This is just for culling purposes
   maximum_range                       1100 km              # Ref 1, plus a little slop

   electronic_beam_steering            azimuth_and_elevation
   electronic_beam_steering_limit      70 deg               # Typical for phased-array
   electronic_beam_steering_loss_exponent 1.4               # Typical for phased-array

   scan_mode                           azimuth_and_elevation
   azimuth_scan_limits                 -70 deg 70 deg       # Same as steering limits
   elevation_scan_limits               -70 deg 70 deg       # Same as steering limits

   transmitter
      antenna_pattern                  BLUE_ABM_TTR_ANTENNA
      frequency                        10 ghz               # Ref 1, 8-12 ghz

      # Because nothing was specified about the power (other than the fact that it has
      # to be less than the 1.1 MW from the generator, which is also used for other needs)
      # a real value cannot be defined. But something that so the model can compute a
      # receiver noise power that results in a detection range of 1000 km.
      #
      # The actual power isn't important because passive detection of the transmitter is
      # not being considered.

      power                            200 kw

      # We don't know anything else about the transmitted signal (pulse width, PRF,
      # pulse_compression), so nothing is supplied.

   end_transmitter

   receiver
      antenna_pattern                  BLUE_ABM_TTR_ANTENNA

      # We don't know anything about the receiver (noise figure, etc.) The effective
      # noise power is derived by the model to get the required nominal detection range.
      #
      # This will probably result in a ridiculously low effective noise power, but
      # because we don't know anything about the transmitted signal modulation, we just
      # have let it ride. It shouldn't be important because we aren't worried about jamming
      # or passive detection.

   end_receiver

   detection_threshold                 12.8 db              # Nominal Swerling case 1, Pd=0.5
   one_m2_detect_range                 1000 km              # Ref 1

   hits_to_establish_track             2 3
   hits_to_maintain_track              1 3
   reports_range
   reports_bearing
   reports_elevation
   reports_velocity
   reports_iff
end_sensor