Receiver | Transmitter | Radar | CommSystem (Interference)
Communications/Radar Overview and Quick Links
STK's Communications capability simulates the performance of communications systems in the context of their missions. With Communications, you can model all the physical components of a system, including the RF environment. Assess the impacts of a wide variety of conditions and interference. Conduct comprehensive link budget analyses. Create reports of the results and visualize them with 2D and 3D graphics.
STK's Radar capability simulates radar system performance in synthetic aperture radar (SAR) or search/track modes. With Radar, you can model monostatic, bistatic, and multifunction radars in the context of your mission to account for the participation of every asset. Assess the impacts of a wide variety of conditions and interference on your radar system. Evaluate the results with reports, graphs, and 2D and 3D visualization.
Communications and Radar performance analysis computations in STK are based on the signal propagation in the far-field regions. These conditions apply to antenna gain computations, signal propagations through free space or other RF environments, signal polarizations, and radar target cross section. The far-field region ranges are based on the frequency (or wavelength) of the signal.
For near-field signal computations and the impact of close-by objects, AGI recommends starting with other Ansys products. For example, you can use Ansys HFSS to analyze the near-field scenario and then compute the far-field data for quantities such as antenna gain pattern and radar target RCS. You can then import the data into STK for dynamic mission scenario analysis.
For more information on using Communications and Radar, see the following links:
Receiver links
- Receiver Models
- Antenna Models
- Spectral Filter
- Rain, Gaseous Absorption, Clouds, Fog, Troposphere...
- Polarization
- Contour Graphics
STK Communications Graphics
- Pattern Graphics
- Boresight Graphics
- 3D Display
- Link Performance Constraints
Using Constraints to Design Communications Links
- Interference Constraints
- Noise Constraints
- Link Budget and Other Reports
- External Files
Global Environment Settings
Local Environment Settings
System Noise Temperature
Pre-Receive and Pre-Demod Gains/Losses
Refraction
Transmitter links
- Transmitter Models
- Transmitters vs. Retransmitters
Modeling Analog and Digital Transponders
- STK Antenna Models
- Spectral Filter
- Modulation (Transmitters)
- Transfer Functions (Retransmitters)
- Polarization
- Post-Transmit Gains/Losses
Refraction
- Contour Graphics
STK Communications Graphics
- Pattern Graphics
- Boresight Graphics
- 3D Display
- Link Performance Constraints
- Pattern Graphics
- Boresight Graphics
- 3D Display
- Link Performance Constraints
- Interference Constraints
- Link Budget and Other Reports
- External Files
Using Constraints to Design Communications Links
Radar links
- Monostatic
- Bistatic Receiver
- Bistatic Transmitter
- Search/Track Radar
- Synthetic Aperture Radar (SAR)
- Jammers
- Antenna Models
- Rain, Gaseous Absorption, Clouds, Fog, Troposphere...
- Contour Graphics
- Boresight Graphics
- Radar Access Graphics
- Multipath Graphics
- 3D Display
- Search-Track Constraints
- SAR Constraints
- Bistatic Constraints
- Radar Reports and Graphs
- External Files
Global Environment Settings
Local Environment Settings
System Temperature
Other Gains/Losses
Refraction
Radar Cross Section (RCS)