Combat Electromagnetic Environment Simulator (CEESIM)

Delivering the Most Advanced Simulation Architecture and Capability

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In the News

The Compact CEESIM VPX, which offers full system capability in a compact, 3U 19” chassis, is available for short-term rental from our partner, Electro Rent. The system comes complete with a suite of modelling tools, server DGS threat modeling, full emitter fidelity and native use of CEESIM scenarios and emitter models.

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Northrop Grumman's CEESIM faithfully simulates true-to-war conditions.

When it comes to development and operational testing, an accurate model of the electromagnetic spectrum is a must. High fidelity simulations of the congested, contested environment provide the most cost-effective means of testing and validating the effectiveness of sophisticated electronic warfare equipment.

Our modular, software defined – hardware enabled technology keeps pace with changing threats to provide the ultimate ongoing mission support—so your warfighter can maintain the tactical advantage in the electromagnetic battlefield.

computer monitor

Simulating the Battlefield in an Electromagnetic Environment

CEESIM provides the radio frequency (RF) simulation of multiple, simultaneous emitters linked to static/dynamic platforms required to faithfully simulate true combat conditions. Robust simulations offer the most affordable means of testing and validating effectiveness of sophisticated electronic warfare equipment.

room of computer servers

Powerful Tools Maximize Productivity

CEESIM includes a set of powerful tools for threat and scenario programming and validation. The entire User Experience is optimized for ease of use and operator efficiency. Visualization tools help the user validate waveform programming and scenario laydowns. A new “drag-and-drop” tool allows the operator to utilize a predefined palette of radar task waveforms to quickly create complex variably framed emitter waveforms. The Maintenance application provides graphical status at the line replaceable unit (LRU) level and guides the operator through calibration procedures when required. Multiple import capabilities speed emitter and scenario development through direct access to intelligence databases and standard model outputs. Real time playback of intel collection data allows immediate testing against new threat waveforms. Open Application Programming Interfaces (API) support integration of user supplied threat models.

An Adaptable, Affordable Solution, Ready When You Need It

When it comes to preparing fighters for the current and future electronic warfare environment, only Northrop Grumman offers a proven solution implemented in truly modular packaging that keeps long-run costs in check. Unlike commercial off-the-shelf (COTS) synthesizers and similar components that require costly tailoring and retrofits to meet simulation requirements, our modern CEESIM architecture has the same advanced threat performance you trust, but with new building blocks that allow you to build small or large systems to fit any budget with a short delivery timeline. Full fidelity simulators can be delivered in as little as two months.

Northrop Grumman offers multiple configurations of the CEESIM technology to meet the distinct needs of your many missions. Core system building blocks are implemented in a VPX form factor that builds on existing CEESIM capabilities. These building blocks are utilized to create a wide range of system configurations based in individual customer test requirements. This flexible architecture allows us to provide the minimum hardware needed to meet test requirements for the most cost-effective solution. The plug-and-play design supports easy expansion in the field. Compact CEESIM-VPX offers full CEESIM capability in the space of a COTS synthesizer. CEESIM-VPX is scalable to meet a wide range of test requirements.


Improved Performance for Fielded Systems

We offer a wide range of upgrade packages to bring these exciting new capabilities to fielded systems. Maximize the value and performance through technology insertions, such as new RF sources and emitter modeling upgrades. Increase user efficiency through the addition of the latest software tools to your existing hardware.

man turning dial on electronic equipment

Proven Experience in the Electromagnetic Environment

Northrop Grumman has a legacy in the art and science of RF simulation and the electromagnetic environment. With more than 60 years of experience in the development and delivery of offensive and defensive systems. Northrop Grumman's capabilities in electronic warfare, full spectrum cyber and electromagnetic warfare span all domains – land, sea, air, space, cyberspace and the electromagnetic spectrum.

Learn More > Electronic Warfare

New Server Digital Generation Subsystem and Enhanced Emitter Modeling

Server Digital Generation Subsystem (DGS) provides the basis for advanced emitter modelling in the CEESIM that can grow and evolve as the threat environment changes. It provides the platform for enhanced emitter modeling such as:

  • Emitter behavioral modeling that includes the ability to model threat radar scheduler reactions to the simulated environment
  • Open Application Programming Interfaces (API) allow integration of Customer tools or Government models
  • Integration with national EW databases (such as Electronic Warfare Integrated Reprogramming EWIR) to allow direct import of all emitter data including any Transition Logic Maps, Algorithms and Operands that control waveform generation
  • Integration with closed-loop simulators which emulate threat radar receiver signal processing of jamming and react in a threat faithful way

Server DGS offers our “True to Combat” digital pulse engine in a Commercial-Off-the-Shelf (COTS) Server-class PC

Real time emitter modeling has migrated from custom hardware to an all-software version of the DGS that runs on a COTS Server.

  • Lower cost
  • Industry leading emitter modeling
  • 8 MPPS with expansion to 16 MPPS
  • Easier to maintain / Improved MTBF
  • Supports full spectrum of interfaces for laboratory synchronization and control

Visualization Tools Increase User Productivity

  • 3-D visualization of threat domes
  • Range/bearing from emitter to SUT graphically displayed
  • 3-D emitter field-of-view
  • Drag & drop placement of platforms/emitters on the gaming area
  • Simplified emitter creation with enhanced emitter visualization
  • Emitter preview graphically displays programmed waveforms


rack-mounted server

Scalable EW Stimulus Solutions - Compact VPX (CCVPX) - Datasheet

female miliary pilot

CEESIM-VPX - Datasheet

miliary jet flying over mountains

Compact CEESIM-VPX - Datasheet

In the News

Electronic Warfare - CEESIM

Northrop Grumman CEESIM Users Gather to Experience the Latest in Electronic Warfare Testing Technology

Northrop Grumman Delivers Advanced F-35 Electronic Warfare Simulation Capability to Navy

Northrop Grumman Delivers Advanced F-35 Electronic Warfare Simulation Capability to Navy

Woman wearing PPE in a clean room with a yellow tint, looking into microscope.

Northrop Grumman to Provide Radio Frequency Generation Technology for US Navy's NEWEG Program

Media Inquiries

Ellen Hamilton
(224) 625-4693