With the Terrain Defender, a detection field consisting of Radio Frequency (RF) energy is formed between two parallel buried leaky coaxial cables. Processors on both ends of this cable pair transmit and receive RF energy forming a bi-directional static field using End-to-End Correlation (E2EC)™. E2EC is a technology developed and patented by Fiber SenSys that dramatically increases the performance and reliability of buried RF sensors, making the Terrain Defender™ the best performing buried sensor available.
Rejection of multi-path interference: A problem with previous RF buried sensors is how they interact with metal objects such as fences. The signal “jumps” to a fence and then re-joins the static field further down the detection area. This phenomenon, which generates an alarm in competitive systems, is known as multi-path interference. By looking at the sensor cable signal from both directions using E2EC, the Terrain Defender rejects these false alarm occurrences.
Increased data: E2EC allows the Terrain Defender to collect four times as much target data as systems that only transmit and receive from one end of the cable pair. This additional data is used to improve signal processing results. More data equals better target discrimination thus exponentially increasing the probability of detection and lowering the nuisance alarm ratio. Again, the best performance in the industry.
Signal level: E2EC averages the signals from both ends of the cable pair resulting in a perfectly level detection field. This level field creates more consistency in detection for better signal processing and more tolerance on depth and cable spacing requirements increasing the ease of installation.
Cut tolerant: Terrain Defender is the industry’s only cut tolerant system. A single cut in the sensor cable does not cause a loss in the detection area; both sides of the cable continue to transmit and receive with E2EC technology.