New Bi-Directional Trihedrals for satellite interrogation to monitor earth movement. Building and other movements
Increasing use of satellite based technology is enabling solutions for a clearer view of the ground, landslides, earth movement, coastal erosion and led to us to develop large trihedrals with fixed supports set to receive signals from the European Space Agency Sentinel-1A satellites launched in 2014, and Sentinel-1B in 2016 which orbit 180° apart, together imaging the Earth every six days. The Sentinel-1 constellation benefits numerous services, such as monitoring of Arctic sea-ice extent, routine sea-ice mapping, and surveillance of the marine environment. Technically these two ended their mission in 2022 but Sentinel-1C & 1D were lunched in 2024. They operate in C-Band, 5.405GHz.
TerraSAR-X (TSX) is another imaging radar Earth observation satellite, a joint public-private-partnership between the German Aerospace Center (DLR) and EADS Astrium. The exclusive commercial exploitation rights are held by the geo-information service provider Astrium. TerraSAR-X was launched in 2007 and has been in operational service since January 2008. It has a twin satellite TanDEM-X, launched 2010. Some were launched with a 5yr mission life but still seem to be working. These satellites operate at X-Band, 9.605GHz
Our specially designed support frames can be deployed in opposing pairs known as bidirectional corner reflector with 100cm corners to 170cm corners to monitor ascent and descent as recommended by our specialist advisers who have considerable experience in these matters. Area will be selected to ensure than the ground targets always stand out from natural ground clutter.
The responses for our 1m and 1.7m corner trihedrals -
EM35i
A Trihedral in an inflatable ball, light weight and small when packed, but once inflated produces a massive response of 107m2 at X-Band and is predicted to be >300m2 at Ku-Band. Very useful for professional users such as the military for target or tracking use.
Weighing just 418grms with six fittings, it can also be used in some airborne applications under kites, balloons or drones. Fixings to secure can be added as required.
Trihedral TH312.
Echomax are pleased to announce our new optimised boresight technology to produce a range of Trihedral radar reflectors to give a 360° azimuth coverage with ability to control the response in elevation to match nature of the radar platform (i.e. shipborne, airborne, missile) that will interrogate the target. The TH6 range of professional radar targets complements our existing range of single & dual trihedral targets which have found widespread use in marine applications and as ground positioning and calibration targets for marine & satellite systems
Weight: 20KGS Height: 532mm Width: 704mm
This plot is a prediction of the Azimuth response of a 200m2 (nominal at Ku Band) shown without any phase interactions which can lead to a number of narrow peaks & nulls in the region (±10⁰) of the 6 existing dips in the response shown. Such interactions are exceptionally difficult to model and if required then measurement in a microwave RCS range such as operated by QinetiQ Funtington are needed to reveal the detail.
Trihedrals supplied for a project in Antarctica
Retractable cluster, with a response of 5000m at 120° to Xband Radar. Specially made to our customers requirements
100 cm Modular Perforated Trihedral
35cms Modular which is used on West Minster Bridge
Missile Targets with Echomax EM325 & EM400 on Pedestals, 312 Trihedral on frames on floating platforms
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