Short-range radar
The short-range radar (NBR) TRML-2D or TRML-3D is an autonomous, mobile command system of the Bundeswehr with an integrated round search radar. It is used to monitor the airspace and to manage anti-aircraft weapons . Thus, the NBR is able to feed its reconnaissance results into the Army Air Defense Reconnaissance and Combat Command System ( HFLaAFüSyS ) of the Army Air Defense Force and thus to receive an even more detailed and comprehensive air picture. The resulting advantage is that only a single, locatable radar source is active.
System description
The range of the radar is 60 km or 200 km for the 3D. The NBR monitors the airspace day and night. It locates, identifies and reports aircraft at low and medium altitudes, creates a fire-conductive overall air situation and feeds this into the reconnaissance network. It receives and sends all commands and information important for air defense operations via the command and information system for computer-aided operations management in Staffs 2/1 ( HEROS 2/1) and, in the future, via the command information system for the Army. The NBR supplements the air situation of the air surveillance radar in the reconnaissance network with the air situation data from the close range. The special skills are locating and identifying aircraft in deep flight . The crew consists of three soldiers, whose tasks correspond to those in the air surveillance radar. A power generator is integrated in the vehicle and generates the required electrical energy. The current location is determined by a GPS receiver. The radar device is loaded on a truck (Bundeswehr designation "Lkw 15 t mil gl BR"), but can also be operated remotely.
The radar data processing of the NBR, which works in the G-band , contains a special channel for the detection of helicopters. This enables simultaneous action against fast, low-flying aircraft and wing rockets as well as against extremely slow-flying targets such as. B. helicopter in hover . The EPM equipment (Electronic Protective Measures) for protection against ECM in electronic warfare and the MTI system (a high-resolution clutter map) allow an understanding and accompaniment of even very small target characters in difficult environmental conditions. The manufacturer specifies the range as 46 km for targets with a radar cross-section of 1 m² and with a detection probability of 80% up to an altitude of 6000 m. For targets with a radar cross-section of 3 m², the range is 60 km. 90 tracks can be edited simultaneously.
The manufacturer is DASA , which was absorbed by EADS and has been operating under the name Airbus Defense and Space since January 2014 . When the electronics division of Airbus Defense and Space was spun off at the end of February 2017, the company was transferred to Hensoldt .
Versions
TRML-2D
The radar is manufactured under the name TRML-2D . It works with a parabolic antenna with a cosecans² diagram , the lower edge of which deviates slightly towards the front from the parabolic shape and thus forms the diagram (parabolic antenna with so-called "lower lip"). It's a fully coherent radar . The antenna can transmit and receive linearly and circularly polarized . The maximum antenna height is 12 m (top edge). The IFF antenna is integrated in the antenna of the primary radar . The omnidirectional radiator for side lobe suppression is located above the parabolic reflector.
| Technical data NBR (TRML-2D) | |
|---|---|
| Frequency range | G-band |
| Pulse repetition time | |
| Pulse repetition frequency | |
| Transmission time (PW) | |
| Reception time | |
| Dead time | |
| Pulse power | |
| Average performance | |
| displayed distance | 60 km |
| Distance resolution | |
| Opening angle | |
| Hit count | |
| Antenna round trip time | 2.25 s to 4.44 s |
TRML-3D
The radar can also be equipped with a sixteen-line phased array antenna . With this modernization, the radar is called TRML-3D . In the standard version this antenna is polarized linearly horizontally . A polarization changer is available as an option.
| Technical data NBR (TRML-3D) | |
|---|---|
| Frequency range | G-band |
| Pulse repetition time | |
| Pulse repetition frequency | |
| Transmission time (PW) | |
| Reception time | |
| Dead time | |
| Pulse power | |
| Average performance | |
| displayed distance | 200 km |
| Distance resolution | |
| Opening angle | |
| Hit count | |
| Antenna round trip time | |
The marine detection radar TRS-3D was created from assemblies of the TRML-3D.
TRML-4D
The latest version was presented by Hensoldt at Eurosatory in 2018 and should be delivered to the first customers in 2020. The radar operating on the AESA system can also detect difficult-to-locate air targets such as hovering helicopters or low-flying cruise missiles. The performance-enhanced system compared to its predecessors is able to locate 1500 targets up to 250 km.
Remarks
- ↑ abbreviation for " T ELEFUNKEN R adar M obile L uftraumüberwachung"; TELEFUNKEN had already developed one of the first mobile air surveillance radars (TRMS-3D, Telefunken Radar Mobil Search) in the early 1970s.
- ↑ [1]
- ↑ VN mua radar phòng không tầm trung TRML-3D hiện đại của Airbus? Retrieved November 12, 2017 (vie).
- ↑ Mobile Air Surveillance and Defense Radar - TRML-3D / 32: HENSOLDT. Retrieved November 12, 2017 .
- ↑ https://www.monch.com/mpg/news/c5i/3669-euro-hensoldt4d.html
- ↑ https://www.hensoldt.net/solutions/air/radar/mobile-multi-function-air-surveillance-and-target-acquisition-radar-trml-4d/
