Coastal Radar

Portable coastal radar has advantages in terms of ease of observation / monitoring waters / beach by moving the location in accordance with the observational data to be obtained. When placed in a high position of the sea level, the range will be wider observation area / away whereas if the position just a few meters from the sea level observation area just a few areas. Radar positions for height about 15 meters from the sea level radar coverage (Line Of Sight) could reach about 16 Nm, while if the radar antenna height is 40 meters from the sea level radar coverage can reach about 22 Nm. Ease of installation and operation of a portable coastal radar to be one important requirement. The following illustration conveyed coastal portable radar that may be referenced in the research and manufacture of this type of radar.

Coastal radar using FM-CW (frequency modulated continuous wave) radar because this type has advantages such as: operational and maintenance costs, power consumption rencah, relatively small size, detection range is quite far away, and not easy to know the other side will glow his radar (low probability of intercept = LPI).

Antenna

  • Microstrip patch array gain : around 30dB
  • Dual antenna configuration for transmit and receive
  • Azimuth range : 180 degree
  • Elevation range : - 5 degree up to 10 degree
  • Beamwidth : < 1 degree
  • Vertical beamwidth : around 10 degree

Receiver

  • IF bandwidth : 512 kHz
  • Number of range cells : 512
  • Range cells : 125 meters, 62 meters, 32 meters, 12 meters, 6 meters
  • PC Based processing system
  • Standard PC display
  • Max Beat frequency 2 Mhz
  • Beat Signal sampling by 16 bit ADC
Fequency Generation
  • Main frequency generator DRO (dielectric resonance oscillator)
  • FM modulation
  • Linear saw-tooth by using DDS (direct digital synthesizer)
  • Sweep Repetition Frequency : 1.5 khz
  • Fixed sweep : 2 Mhz, 4 Mhz, 16 Mhz, 32 Mhhz

 

 Transmitter
  • Frequency : S band (2.8 -3.1 Ghz)
  • Ranges : 40 Nm, 20 Nm, 5 Nm, 2.5 Nm
  • Output power : 10 Watt
Software : IMO Standard + ARPA + ECDIS features of ISRA Radar
  • Low transmit power (<= 10 Watt)
  • Low probability of intercepet (LPI) radar
  • No interference to other radars
  • Target tracking
  • Doppler capability
  • Able to be integrated into a radar network

 

 

Brochure

INFRA_Coastal_Radar.pdf
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