2D VHF SURVEILLANCE RADAR P-180U

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:


Specifications

PARAMETER VALUE BEFORE
MODERNIZATION
VALUE AFTER
MODERNIZATION
Range of working frequencies, MHz 150-170 140-180
Frequency agility:
            method for frequency agility electromechanical electronic
            discreet steps 4 fixed frequencies 200 kHz
            frequency setting accuracy n/a ±10 kHz
Types of transmitted probing pulses:
            short pulse 6 µs 6 µs
            phase shift keyed signals:
                        13-bit 13 х 6 µs
                        28-88 bit (28 – 88) х 6 µs
Transmitter pulse power 300 kW 8 kW
Capability of instant probing signal
power and structure changes
Not implemented Implemented
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 m 28/30 km 30/32 km
            at altitude of Н=500 m 50/60 km 60/70 km
            at altitude of Н=1000 m 65/75 km 70/80 km
            at altitude of Н=3000 m 90/110 km 110/120 km
            at altitude of Н=10000 m 175/250 km 300/360 km
Detection accuracy:
            range 1400 m 180 m
            azimuth 1.50 0.40
Resolution:
            range 2000 m 1100 m
            azimuth 80 80
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 time 8 min 3 min
Power consumption 10 kW up to 6 kW