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sensors/radar/generic_sar.txt

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+# ****************************************************************************
+# 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.
+# ****************************************************************************
+# =============================================================================
+#                             A generic SAR sensor
+#
+# The user of this definition is responsible for setting the installation
+# location and orientation using the 'location', 'yaw' and 'pitch' commands
+# in the instantiation of the sensor on the platform(_type).
+#
+# This implementation supports both spot and strip modes in a high and low
+# resolution.
+#
+#          mode         resolution
+#     -------------     ----------
+#     SPOT_HI_RES          1 m       (default mode)
+#     SPOT_LO_RES          5 m
+#     STRIP_HI_RES         1 m
+#     STRIP_LO_RES         5 m
+#
+# The default implementation does not automatically turn off for spot mode.
+# If the user desires this capability, they should specify
+#
+#     sensor sar GENERIC_SAR
+#        location ...
+#        pitch    ...
+#        yaw      ...
+#        automatic_turn_off            # <---- Add this
+#     end_sensor
+# =============================================================================
+
+antenna_pattern GENERIC_SAR_ANTENNA
+   circular_pattern
+      beamwidth                        3.17 deg
+      peak_gain                        34.7 db
+end_antenna_pattern
+
+sensor GENERIC_SAR WSF_SAR_SENSOR
+
+   slew_mode                           azimuth_and_elevation
+   azimuth_slew_limits                 -70 deg 70 deg
+   elevation_slew_limits               -70 deg 70 deg
+
+   mode_template
+      azimuth_field_of_view            -1.58 deg 1.58 deg
+      elevation_field_of_view          -1.58 deg 1.58 deg
+      maximum_range                    200 km
+
+      electronic_beam_steering         azimuth_and_elevation
+      electronic_beam_steering_limit   70.0 deg            # same as slew limits
+      electronic_beam_steering_loss_exponent 1.4
+
+      doppler_filter_broadening_factor 1.20                # Ka
+      doppler_foldover_margin_factor   1.20                # Kd - or azimuth_overcollect_ratio
+
+      transmitter
+         antenna_pattern               GENERIC_SAR_ANTENNA
+         power                         6 kw
+         frequency                     10 ghz
+         pulse_width                   50 us
+         pulse_compression_ratio       7500 absolute
+         # pulse_repetition_frequency  xxxx hz             # The PRF will be dynamically chosen
+         internal_loss                 6.5 db
+         attenuation_model             earce
+      end_transmitter
+
+      receiver
+         antenna_pattern               GENERIC_SAR_ANTENNA
+         # Bandwidth assumes a matched filter for a pulse width of 50 us (i.e.: 1 / pulse_width)
+         bandwidth                     20 khz
+         noise_figure                  4 db
+      end_receiver
+
+      detection_threshold              6 db
+
+      reports_location
+   end_mode_template
+
+   mode SPOT_HI_RES
+      operating_mode                   spot
+      resolution                       1 m
+   end_mode
+
+   mode SPOT_LO_RES
+      operating_mode                   spot
+      resolution                       5 m
+   end_mode
+
+   mode STRIP_HI_RES
+      operating_mode                   strip
+      resolution                       1 m
+   end_mode
+
+   mode STRIP_LO_RES
+      operating_mode                   strip
+      resolution                       5 m
+   end_mode
+
+end_sensor