MULTI-BEAM ACTIVE PHASED ARRAY RADAR “MAARS”

MAARS is multimode C-band acquisition radar for surveillance and weapon assignment. System performs automatic detection, track initiation and tracking of surface and air targets. Due to its modular design it can easily be adapted to a customer’s range, resolution and accuracy requirements using existing components.


 

PRODUCT OVERVIEW 

 

MAARS is multimode C-band acquisition radar for surveillance and weapon assignment. System performs automatic detection, track initiation and tracking of surface and air targets.Due to its modular design it can easily be adapted to a customer’s range, resolution and accuracy requirements using existing components. Due to flexible communication  interfaces to the combat system or when netted to other sensors, MAARS is suitable for integration with a track management system.The system has multi-beam scanning strategies to satisfy the special requirements of stand-alone radars for corvettes,  patrol vessels, minesweepers, minehunters or  as  the self defense radar on frigates. Specific radar applications are sea skimmer detection with target assignment for close-in weapon systems.

 

MAIN FEATURES


  • 4D air surveillance
  • Digital  beamforming of 12 simultaneous receiving beams with electronic  stabilization
  • Automatic and simultaneous detection and tracking (track-while scan) of:

-  air and surface targets;

-  fast supersonic missiles;

-  sea skimmers, even in heavy sea clutter;

-  pop-up targets (e.g. helicopters)

  • Fast target alarm for directly incoming targets
  • Effective suppression of sea, rain, ground clutter and chaff
  • Flexible adaptation of volumetric scanning and waveforms to the various radar tasks with scenario and environment-adapted operational modes
  • Doppler processing - (MTD) Doppler Filter Bank  for sea, rain and land clutter suppression with radial velocity measuring
  • Separate air and surface target channels, each with adaptive detection thresholds
  • Calculation of the required target data  and determination of target type
  • High ECM resistance
  • Built-in test equipment (BITE) for on-line checks and to facilitate fault localization

 

ECCM CHARACTERISTICS OF THE MAARS ARE BASED ON

 

  • Low antenna side lobe levels
  • High angular resolution in azimuth against main lobe jamming
  • Pulse compression for suppression  of  broadband pulse jammers
  • Pulse-pulse and burst-to-burst agility for:

 -  radar frequency;

 -  pulse repetition frequency;

-  pulse length;

 -  signal coding to reduce deception jamming

  • Pseudo-random frequency selection over the frequency band to counter spot jammers
  • MTD processing to improve signal-to-clutter ratio and reduce the effects of chaff
  • Jam detector for continuously monitoring the RF environment to provide information on jamming activity
  • Adaptive Doppler-selective CFAR
  • Automatic jammer avoidance circuit (AJAC) to select the least jammed frequencies
  • Сoherent sidelobe cancellation (CSLC) and sidelobe blanking (SLB)

 

TECHNICAL CHARACTERISTICS

 

Frequency band

C-band (NATO  G-band)

Elevation coverage

up to 70° (depending on operational mode)

Height coverage

up to 20 km

Operational modes:

Extended Long Range mode

instrumental range up to  200 km

Long Range mode

instrumental range up to  150 km

Medium Range mode

instrumental range up to  100 km

Short Range modes

instrumental range up to  60 km

Rotation speed

12; 30; 60 r.p.m., selectable

Beam width (at -3dB):

Vertical (elevation) θε

5,7°

Horizontal θβ

1,6°

Number of elevation phased array beams for reception

12

 

TYPICAL  DETECTION  RANGES


Operational modes

Antenna

rotation

time

RCS

Detection range for  PD =0.5; PF = 10-6 D, km

interference-free conditions

4 mm/h

rain length=60 km

10 mm/h

rain length=30 km

Extended Long Range 

ε≤  60

5 sec

bomber σ =10 2

165

148

130

surface target (frigate)

Radio horizon under normal refraction; 200 km under superrefraction

Long Range      

ε≤ 300

5 sec

missile σ =0,03 2 m2

27

24

21

fighter σ =2 m2

100

89

80

attack aircraft σ =5 m2

120

107

95

bomber σ =10 m2

140

123

110

surface target (frigate)

Radio horizon under normal refraction; 150 km under superrefraction

Medium Range

ε≤ 700

2 sec

missile σ =0,03 m2

23

20

18

fighter σ =2 m2

70

63

55

attack aircraft σ =5 m2

85

75

65

surface target (frigate)

Radio horizon under normal refraction; 100 km under superrefraction

Short Range

ε≤ 700

1 sec

missile σ =0,03 m2

20

18

17

fighter σ =2 m2

50

45

40

surface target (frigate)

Radio horizon under normal refraction; 60 km under superrefraction



SOME HISTORY FACTS





10,000

Tonnes of iron
Shot at Siege of Sebastopol during Crimean War





144,000

Revolutions per minute
Does a bullet fired from Lee Enfield rifle, as used in both world wars





2,000

Women
The Nizam of Hyderabad raised in 1975 for his war against the Marathas





130,000

Meters
Is an effective range of Big Bertha, the World War I howitzer


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Contact Information

ABOUT SPETS TECHNO EXPORT

State Foreign Trade Enterprise “SpetsTechnoExport” is a fully state-run entity incorporated by the Government of Ukraine in 1998 for export-import activities at foreign armaments markets.

HEAD OFFICE

7, Stepana Bandery Avenue
Kyiv, 04073, Ukraine
tel: +380 44 5685070
fax: +380 44 5685068

LIAISON OFFICE

B-5/147 Safdarjung
110057, New Delhi
tel: +91 11 26153792
fax: +91 11 26153830

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