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KOR Electronics manufacturers many varieties of RES products that are DRFM based or DSP/Synthesizer based and using several different signal processing technologies allowing KOR Electronics to tailor the best available technology to each customer’s specific requirement. The RES output may be an RF, IF, or Digital I & Q signal direct injected onto the radar bus, or it may be transmitted as a Free Space output. These Direct Inject simulators have been developed to be generic to support multiple types of radar systems. The RES systems are used for applications ranging from Anechoic Chamber and Open Air Range (OAR) to laboratory based Radar Production Testing and Comprehensive Radar Performance Evaluation.

	Block Diagram
	Specifications
	Data Sheet

These simulators process or receive target geometries and in-beam calculations in real-time. The simulators are capable of generating large numbers of simultaneous high fidelity target, jamming and clutter/chaff returns within the radar beam, and over a hundred targets in the field of regard. Additional functionality including Doppler modulation, Amplitude Control (Range, RCS, and Scintillation), as well as, radar signal modulations (JEM, RSM) can be added to generate more complex target simulation.

With DRFM based simulators, since the transmitted waveform is stored and recalled by the DRFM, it is usually not necessary to be connected to the radar or its data bus to determine pulse/dwell characteristics. This characteristic allows the system to be used for testing many different radars and missile seekers. This type of simulator is known as a Free Space system.

To date, KOR Electronics has produced RES systems to test over forty (40) different Radars and Seekers. The RES designs utilize advanced ASIC, FPGA, DSP and DDS technologies for high fidelity signal capture, modulation, and regeneration. Coupled with PowerPC processors on an open VMEbus standard architecture the RES systems are very cost-effective and flexible solution for most Radar testing applications.

The Host Computer is a Pentium based IBM PC compatible computer that hosts the RES graphical user interface software package designed by KOR Electronics for developing and monitoring scenarios, as well as performing all maintenance functions (like Built-In-Test and Calibration). The graphical user interface (GUI) allows the operator to develop scenarios with minimal effort utilizing libraries of components ranging from target definitions to System Under Test (SUT) antenna patterns. The operator is provided the ultimate in control and flexibility via user definable tables (UDT) for entering or modifying data files stored in these libraries.

The RES Host also provides the ability to monitor scenario progress, including SUT and target positions, select platform data and radar mode parameters. The ability to remove targets from the scenario or activate targets later in the scenario is also provided. System commands like Run, Freeze, Resume, Stop, and Dry Run are provided to the operator for execution control. Commands may optionally be set to execute automatically based on IRIG time, thus allowing precise scenario operation control amongst multiple test assets simultaneously.

For real-time simulation, the RES VMEbus architecture provides an industry standard, high speed, modular approach to support the most sophisticated radar system. This architecture is ideal for interfacing with additional radars, adding additional system capabilities, and upgrading system performance through advancements in microprocessor and digital signal processing (DSP) technology. These systems are easily expandable to grow the requirements of our customer changes over the life cycle of their radar program.

The IF/RF generation circuitry is the product of a long evolution of high performance simulator designs allowing coherent operation by utilizing the local oscillators of the radar under test. As a result, KOR Electronics has been able to provide a single RES capable of operating with a combination of airborne, ground and sea based radar systems.

Radar Environment Simulator (RES) SPECIFICATIONS