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EOIR

Model electro-optical and infrared sensor performance.

EOIR's Bidirectional Reflectance Distribution Function

• May 12, 2023
• FAQ

This article explains how STK's EOIR capability uses two different BRDFs to measure photon reflections from a surface material.

Exporting Volumetric Data Best Practices

• Feb 1, 2016
• FAQ

This article provides guidance on exporting Volumetric data.

Creating a Slew Rate for a Target Pointing Sensor

• Nov 4, 2016
• FAQ

Here are steps for making a sensor slew when switching between two different pointing targets.

How Does the High-Precision Orbit Propagator (HPOP) Work?

• Oct 14, 2021
• FAQ

This is a high-level overview on how HPOP works.

How does STK Compute C/N for a Laser Link?

• May 28, 2015
• FAQ

This article provides some details about the equation that STK uses in computing C/N for a laser Link.

Setting Up HLA Data Feeds in STK

• Nov 14, 2022
• FAQ

This article describes the steps needed to set up HLA (High Level Architecture) data feeds using STK.

How do I Use STK to Model Persistent Surveillance?

• Nov 14, 2016
• FAQ

STK Coverage enables you to merge different types of assets and measure their effectiveness.

Why am I Getting "Error 1311: Source File not found" When Installing MATLAB Connectors?

• Apr 19, 2016
• FAQ

This article provides insight into handling this error message.

Can the Reference Ellipsoid Used by STK be Changed?

• May 28, 2015
• FAQ

By default, STK uses a WGS84 Earth model. You can change this by editing the Earth.cb file.

How Do I Submit My Level 1 STK Certification Test to the AGI File Transfer Server or SDF?

• Dec 15, 2020
• FAQ

This article contains the steps needed to upload the Level 1 STK Certification test to the AGI File Transfer Server or SDF.

How to Use Power Control to Maintain a Constant Flux Density in STK Communications

• Jul 11, 2018
• FAQ

You can create a transmitter model plugin script for this purpose.

Waveform and low-level signal representations in STK

• Jan 9, 2018
• FAQ

Use the power spectral density option on transmitter objects and radar objects for low-level signal representation.

How to Change the Default New Object Method

• Jan 19, 2018
• FAQ

You can use New Object Preferences to select what happens when each type of STK Object is created.

Level 2 - STK Master Certification, Exercise 2, Terrain File

• Dec 14, 2016
• FAQ

This FAQ provides the terrain tile needed for the Level 2 - STK Master Certification, Exercise 2, if you are unable to use the STK Terrain Server.

Why do I get a Runtime Error 424 when installing STK?

• May 27, 2015
• FAQ

This error occurs from not unzipping the STK install download.

Using Analysis Workbench to Report the Subsolar or Sub-observer Points

• Mar 17, 2016
• FAQ

Calculate and report on subsolar or sub-observer points for any central body.

How to Attenuate RF Signals by Distance Using a Plugin Script

• Aug 7, 2023
• How To

This article will show you how to add distance-dependent losses to signals in your scenario given a known scale factor. The example used was...

How to Import SRTM Terrain from NASA's Earthdata into STK

• Sep 2, 2022
• How To

This article explains how to use QGIS to process terrain data from the SRTM missions for analysis in STK.

Strategic Partners

• Web Page

AGI's strategic partners offer technology or products that complement our software, offering expanded functionality for our customers.