STK RADAR
Radar provides thorough analysis andgraphic displays of radar systems
A radar can be attached to an STK
vehicle, facility, place, target, or sensor.
Radar types and modes are:Model types. Monostatic Radar, Bistatic
Receiver Radar, Bistatic Transmitter
Radar, and Multi-function Radar.
Operational modes. Search/Track
Radar, Synthetic Aperture Radar (SAR),
and Radar Advanced Environment(RAE).
Multi-function radar. Models multiple
radar beams and supports simultaneous
handling of tasks by these beams, suchas beams that follow a user-specified
schedule to carry out tasks. Beams may
be assigned to scan search zones ortrack targets.

Radar components
Radar Receiver• Model orthogonal RF polarizedchannel• Model receiver specs• Radio frequency filter• Single or dual polarization channels• System noise temperature• Radar Sensitivity Time Control(STC) attenuation• Additional gains and losses• Constant false alarm rate (CFAR)
algorithm• Cell-Averaging (CA-CFAR) and
Ordered Statistics (OS-CFAR)
algorithms for CFAR and Probability ofDetection (PDet) computations• User plugins for adding custom CFARand PDet algorithms

Radar Transmitter• Model orthogonal RF polarized signal• Model transmitter specs• Radio frequency filter• Single or dual polarization channels• Additional gains and losses
Antenna• 60+ antenna models are easily
accessible and editable using theComponent Browser• Antenna model types include Bessel,
Cosecant, Cosine, Diploe, GPS,Gaussian, Helix, Hemisphere, ITU,
Isotropic, Parabolic, Pencil Beam,
Phased Array, Rectangular Beam,
Simple Optical, Sinc, Square Horn,
Uniform Aperture, and user-defined

Bistatic transmitters
Both Monostatic and Bistatic Transmitter
Radar systems can be used as theBistatic Transmitter for the Bistatic
Receiver Radar system.

05 Apr 2019

STK RADAR
Jammers
Radar enables you to identify RFtransmitters and other radars asjammers and assess their impact on
the performance of a radar system.
Signal spectrum power spectral Density(PSD) of these jamming sources canbe computed across radar receiver
bandwidth for high fidelity analysis.

Clutter
The clutter geometry algorithm
determines the location of each clutter
point relative to the radar, and displays itas a single clutter point on the target or
displays clutter over a smooth or oblate
Earth. A Clutter Geometry Model plugin
is also available.
Custom clutter models may be
added by a user to enhance clutter
computations

Radar Cross Section (RCS)
Radar enables you to specify animportant property of a potential
radar target - its radar cross section(RCS). RCS can be a constant value,
an aspect dependent real or complex
valued matrix. It can also be an aspect
dependent complex scattering block
matrix. The Bistatic radar model
supports bistatic RCS for a target.
Bistatic RCS can be of types listedabove.
A plugin RCS module option for user
specified RCS computations allows
addition of dynamic or adaptive RCS
algorithms.

Radar constraints• Search/Track, Search/Track withJamming, Search/Track OrthoPol, andSearch/Track OrthoPol Jamming• SAR, SAR with Jamming, SAR OrthoPol• Bistatic, Noise, Sun, Temporal, Zones,
Targeting, Vector, and plugins• New RF-based Access constraints
applicable to Multifunction radars

Model atmospheric refraction
using three models• Effective Earth Radius• ITU-R P.834• Satellite Control Facility (SCF)

RF Propagation models
A full range of environment models isprovided:• Rain models. Crane 1982, Crane
1985 and ITU-R P.618, as well as userdefinable outage percentage and rainrate• Atmospheric absorption models.
Atmospheric absorption models —ITU-R P.676-9 and Simple Satcom.
ITU-R P1814 for laser receivers.
• Clouds and fog models. ITU-R P.840
recommended for attenuation due toclouds and fog• Tropospheric scintillation model.
ITU-R P.618 model with option tocompute deep fade
• Ionospheric fading model ITU-RP.531 for space based radars ortargets. Uses the International
Reference Ionosphere (IRI-2016)
based algorithms and ionosphericelectron and ion content data updates• Custom loss plugin models, such as
launch vehicle plume attenuation andaspect dependent antenna radomeattenuation• Object specific losses such as local
surface atmosphere and systemtemperature

Terrain Integrated RoughEarth (TIREM) model
TIREM adds fidelity to the calculationand dynamic modeling of point-topoint, line-of-sight effects for link
performance, by taking into account theeffect of irregular terrain, sea water, andnon-line-of-sight effects. The maximum
height for these models is 30 km.

Reports and graphs
A wide variety of radar data providers
are available for generating custom
reports and graphs

Radar Advanced Environment(RAE) extension for Radar
Extends the capabilities of Radarby introducing ground reflectivity
as a contributing factor in dynamic
radar assessments.

05 Apr 2019