2D VHF SURVEILLANCE RADAR P-180U

OVERVIEW

   Ground-based long-range VHF surveillance radar P-180U is presented as a modernized follow- on to its prototype, the analogue P-18.
   As a result of modernization the radar’s detection performance is efficiently improved.
   Modernized radar features automatic tracking capability as well as data receiving from other radar sensors. Data can be transferred over a variety of communication channels.

DEPTH OF MODERNIZATION:

  • Radar equipment cabin has been fully modernized. Frequency range is expanded to 140 - 180 MHz, number of working frequencies increased from 4 to 200, capability of instantaneous electronic frequency agility is added. Radar transmitter and receiver feature solid-state components only. Transmitter has a modular design and provides ‘soft-failure’ redundancy: failure of individual module leads to partial performance degradation.
  • Antenna-mast assembly is equipped with new asynchronous motor drive assembly controlled by frequency inverter.
  • P-180U radar remains a two-dimensional system and is used to find azimuth and range. Altitude can be obtained by interfacing modernized height-finding radars. Parameters of transmitted signal as well as parameters of signal processing after reception can be set at the operator workstation. Secondary processing and tracking are performed at the remote workstation. Both workstations are installed in equipment cabin.
  • P-180U radar features efficient protection against pulse interference and active jamming. Level of interference is continuously monitored and graphically represented to operator. Jamming protection is achieved through the expansion of dynamic range of the signal processor and capability of electronic frequency agility. Passive interference is rejected through digital adaptive MTI and generation of clutter map.
  • Number of vehicles in standard configuration has been decreased from 4 to 2. Two power generators are accommodated in an individual compartment of the antenna-mast assembly vehicle. Other design options are possible: radar equipment can be placed on a single semitrailer or on trailers without vehicle chassis. Power generators can be placed on separate vehicles. Modernized P-18MA radar is adopted by MoD of Ukraine for its Armed Forces.

P-180U RADAR FEATURES:

  • metric band for «counter-Stealth» capability;
  • maximum use of COTS components;
  • stable, fail-soft, modular solid-state transmitter;
  • built-in test equipment;
  • no special adjustments required during operation;
  • largely simplified maintenance;
  • engineered for minimum cost of ownership.


Specifications

PARAMETERVALUE BEFORE
MODERNIZATION
VALUE AFTER
MODERNIZATION
Range of working frequencies, MHz150-170140-180
Frequency agility:
            method for frequency agilityelectromechanicalelectronic
            discreet steps4 fixed frequencies200 kHz
            frequency setting accuracyn/a±10 kHz
Types of transmitted probing pulses:
            short pulse6 µs6 µs
            phase shift keyed signals:
                        13-bit13 х 6 µs
                        28-88 bit(28 – 88) х 6 µs
Transmitter pulse power300 kW8 kW
Capability of instant probing signal
power and structure changes
Not implementedImplemented
Detection range for a target with RCS of 2.5m2, Р=0.5
at antenna height of ha=6.35/10.35:
            min range-2,7 km
            at altitude of Н=100 m28/30 km30/32 km
            at altitude of Н=500 m50/60 km60/70 km
            at altitude of Н=1000 m65/75 km70/80 km
            at altitude of Н=3000 m90/110 km110/120 km
            at altitude of Н=10000 m175/250 km300/360 km
Detection accuracy:
            range1400 m180 m
            azimuth1.500.40
Resolution:
            range2000 m1100 m
            azimuth8080
Range of adaptive MTI-0-400 km
Clutter suppression ratio-> 40 dB
Dynamic range of receiver and digital signal processor-> 100 dB
Automatic control of modernized height-finders-Implemented
Number of controlled height-finders-up to 4
Start-up time8 min3 min
Power consumption10 kWup to 6 kW
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