Siwenoid

Electromagnetic sensors include a “front-end” that generates and receives the electromagnetic waves through a subsystem known as a Receiver/EXciter (REX). They also include a “back-end” that performs signal and data processing, typically implemented in software. These separate subsystems must be designed and developed separately, then integrated together. The development of the overall sensor is slowed and complicated by the problems that show up for the first time at integration testing. This is due in large part to the interdependencies of these subsystems that cannot be effectively tested during development. Later, software patches, configuration upgrades, waveform changes, and technology refresh become substantially more expensive because they can only be verified by traveling to the operational site to connect with the actual front-end hardware. The Virtual Receiver/EXciter (VREX) addresses these challenges through the use of a simulated front-end.