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- Kelvin Hughes Radar Mantadigital Technical Manual Download
- Kelvin Hughes Radar Mantadigital Technical Manual 2017
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SharpEye™ Naval Radar Transceiver
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Description of the radar set, tactical-technical characteristics
Picture 1: Antenna and turntable of the SBS-800, one of the possible sensors for the SharpEye™ radar system
Hands of war 2 riddles. Picture 1: Antenna and turntable of the SBS-800, one of the possible sensors for the SharpEye™ radar system
Specifications | |
---|---|
frequency: | I- and E/F-Band |
pulse repetition time (PRT): | |
pulse repetition frequency (PRF): | 350 … 3000 Hz |
pulsewidth (τ): | 50 … 400 ns |
receive time: | |
dead time: | |
peak power: | 200 W |
average power: | 20 … 25 W |
instrumented range: | |
range resolution: | |
accuracy: | |
beamwidth: | 1.8 degrees |
hits per scan: | |
antenna rotation: | 12, 24 or 46 rpm |
MTBCF: | |
MTTR: |
SharpEye™ Naval Radar Transceiver
The SharpEye™ I- and E/F-Band transceivers are new generation navigation and short-range tactical surveillance radars exceeding the enhanced performance requirements mandated by the International Maritime Organization (IMO) under the Radar Performance Standard IEC 62388.
Kelvin Hughes Radar Mantadigital Technical Manual Download
The I Band SharpEye™ will replace the existing Type 1007 and similar I Band navigation radars which are in service in both surface warships and logistics vessels. Compared with a conventional (non-coherent) I Band navigation radar system, SharpEye™ delivers an improvement in sub-clutter visibility typically in the region of 30 dB, enabling targets with small radar cross-sections (typically 0.5 m²) to be detected even in the presence of heavy sea and rain clutter. This makes it an ideal choice for the early detection of small ‘asymmetric’ targets such as Fast Inshore Attack Crafts (FIACs) and enhances situational awareness and vessel security.
SharpEye™ uses a solid-state power amplifier with a peak output power of about 170 W and a duty cycle of 10%. It transmits relatively long internally modulated pulses in order to illuminate targets with sufficient energy for detection. To provide the required short range performance, SharpEye™ transmits a sequence of pulses of differing length, with each pulse optimised to cover a specified but overlapping range bracket. SharpEye™ is able to separate targets from clutter due to their differing radial velocity components. A Doppler filter bank of up to 1024 different filters processes the echoes received from the pulse sequence to extract the radial velocities of targets and clutter alike.
Figure 2: SharpEye™ Transceiver block
NAVIGATION RADAR MANTADIGITAL™ RADAR SYSTEMS Kelvin Hughes offers a range of radar systems. From the state of the art SharpEye™ solid state technology to conventional magnetron transceivers, all with our innovative multifunction MantaDigital™ displays and low proile antennas. Variants include: 10kW and 25kW in X band frequency, 30kW magnetron and SharpEye™ 200W solid state transceiver in S band frequency. DISPLAY TECHNOLOGY The MantaDigital™ multifunction navigation workstation provides radar, chart radar, ECDIS and Conning functionality in a single station. The different Type Approved modes can all be displayed with a simple ‘point and click’ at the relevant screen icon. Key features include dual PPI, ETD (Enhanced Target Detection), ice detection, chart radar, dynamic clutter suppression, vessel predictor and radar overlay. ENHANCED TARGET DETECTION ETD signiicantly enhances the display of all targets without interfering with the normal radar appearance or operation. This is achieved by correlating returns over a long period of time and then allocating colour shades depending on the persistency of a return and using different colours for stationary and moving targets. When combined with the dual PPI, the operator can continue using the radar in the normal way with the addition of an advanced detection view on the secondary PPI. ETD is of great beneit in ice or for detecting loating debris and small boats. DUAL PPI The modern radar display risks becoming cluttered with information such as from ARPA symbology, Trails, AIS and Chart data. When looking for small intermittent contacts, this is not ideal and so we have introduced a second PPI screen. This allows the navigator to beneit from the data while still being able to keep a clear screen for small target searches. The second screen can be conigured independently of the irst and so, for example, trails can be set to True on one and Relative on the other, giving the Navigator a better and instant visual appreciation of the risk of collision and course and speed of other vessels. SHARPEYE™ SOLID STATE TECHNOLOGY No magnetron equals no routine maintenance, ultra high reliability, and low cost of ownership. Despite the low (200W) peak power, the detection performance, especially in poor weather conditions, is superior to that of magnetron radars. Radar performance also beneits from the transceiver being positioned upmast, thereby minimising signal loss in the waveguide while also simplifying installation. The high reliability and lack of routine maintenance means the need to subsequently access the transceiver is almost removed. ANTENNA AND TURNING UNITS Antennas available are 1.3m, 1.9m and 2.5m in X band frequency and 3.9m in S band frequency, and are all of the patented low proile design to reduce wind loading and increase in-service life. The antennas use the polyrod lens principle that allows a reduced vertical dimension enabling a signiicantly lighter and low proile design that reduces the stress on the motor and gearbox. SITUATIONAL INTELLIGENCE, THE WORLD OVER