ReTWis

What is ReTWis?

ReTWis is a through-wall radar system capable of detecting, locating, and real-time tracking of living human targets concealed behind solid barriers. ReTWis is a truly portable device; it weighs 7 kg, including its battery, which provides sufficient power for an endurance of 9 hours. ReTWis can be used for a variety of different purposes and in as many ways; whenever you need to know whether there are living humans on the other side of the solid barrier and what their current location is.

ReTWis is an invaluable tool in every case where having visibility is essential. ReTWis can see through most common wall materials enabling its users to view living beings at a range of up to 20 meters. ReTWis is the tool which can help you to have a quick evaluation of room activity and it can also be used as a decision-maker tool.

How and Where does ReTWis Work?

The ReTWis through-wall radar is based on advanced Ultra-Wideband (UWB) technology utilizing short electromagnetic impulses to penetrate the wall. The signatures of targets hidden behind the wall are reconstructed by processing the reflected echoes from these targets. ReTWis is optimized for detecting small changes in the received electromagnetic energy induced by human motion; slight micro-movements caused by vital signs (e.g. respiration) are also captured and displayed on the screen. Ultra-low power electromagnetic emission transmitted by ReTWis (approx. 100× lower than the emission of a cellphone) is harmless for both the user and the people behind the wall.

Enhanced image processing implemented in ReTWis enables the user to determine the position of the targets, observe their movements in real time, distinguish between moving and stationary (just breathing) targets, and recognize their activity. In most application scenarios, ReTWis is assumed to be placed close to the wall. However, it is capable of operating in standoff mode as well (mounted on a tripod). In general, ReTWis can penetrate through wall materials that are transparent for radiowaves, e.g., drywall, wood, concrete, adobe, and brick. A unique feature of the ReTWis system is its capability of seeing through perforated brick-walls. The extreme thickness and high moisture content in the wall material may negatively impact the maximum radar range. Obviously, ReTWis can't see through continuous metallic sheets.

ReTWis Application

Application of ReTWis by military, police and special forces protects lives of soldiers in unknown urban environments as well as lives of hostages during counter-terrorist operations. ReTWis is also a highly versatile tool for rescue teams, especially in the case of fire and natural disasters.

Armed Forces and Law Enforcement - Gain Valuable Intelligence!

• Quick identification of military objectives
• Best surveying when undertaking building clearance
• Spot possible ambushes
• Face hostile scenarios with the ease of knowing what is behind the walls 
• Improve the tactics of operations
• Reduce the risk to life for people at the other side of the wall and operators
• Rescue captives/hostages
• Increase the chance of mission success

Emergency Services - Rescuing People, Saving Lives!

• Search and locate victims among rubble after man-made or natural disasters
• Rapid decision-maker tool
• Know the exact location of the victims despite the hostile conditions
• Explore the field before making decisions
• Save time and energy when searching for survivors
• Minimize negligence in emergency

New Product

ReTWis 4.3 - external link 

Latest release of the award-winning through-wall radar system ReTWis. Improved performance, optimized speed, energy-efficient embedded computer, exceptional robustness to cluttered environments, packed full of advanced features. Wherever you are, whatever your objectives, with the ReTWis 4.3 you'll never miss the action!

ReTWis 4.3

ReTWis 4.3 Technical Parameters - external link 

• Size: 500 × 420 × 160 mm
• Weight: 7.20 kg (including battery)
• Battery life: up to 9 hr (14 Ah battery pack)
• Maximum radar range: 20 m (adjustable)
• Detection ability: Motion and motionless people
• Micro-movement/Breathing detection
• High-sensitivity mode
• Real-time surveillance
• Remote control (wired and wireless)

ReTWis 4.3

Special Offers

Training

Although ReTWis is very easy to use, the essential key to its successful application is the user's operational experience and the ability of correctly interpreting the displayed radar images. RETIA exclusively offers training to help our customers getting familiar with ReTWis and unleash its full power. Please contact training leader uwb@retia.cz for more information and availability.