PR-2 Radar in Aguadilla

Ricardo Ríos OlmoAdvisor: Dr. José Colom

Outline

• Objective• About PR-2• PR-2 vs Nexrad• Observations• Recent Ideas• Next Up….

Objective

• Modify Source Code to our needs:•Raw Data•Display Resolution•Data Resolution

• Data Transfer from Aguadilla – UPRM• Validate Radar Data• Pulse width modification??

• Modify Source Code to our needs:•Raw Data•Display Resolution•Data Resolution

• Data Transfer from Aguadilla – UPRM• Validate Radar Data• Pulse width modification??

About PR-2

Radar donated by EWR Weather Radar Systems.Model: EWR 600Radar donated by EWR Weather Radar Systems.Model: EWR 600

Tx/Rx

• Frequency: 9.345 GHz (± 30 MHz)• Power Output: 4kW peak• Pulse Width: 4µs• Range: 40Nm (for our purposes)• PRF: 119 Hz (± 10 %)• Receiver Gain: 135dB

Tx/Rx

• Frequency: 9.345 GHz (± 30 MHz)• Power Output: 4kW peak• Pulse Width: 4µs• Range: 40Nm (for our purposes)• PRF: 119 Hz (± 10 %)• Receiver Gain: 135dB

Antenna

• Flat Plate (Slotted Waveguide)• Size : 18” • HPBW: 5.5˚ • Gain: 31.0 dB• Side Lobes : -25 dB• Tilt: 0˚ to 15˚

Antenna

• Flat Plate (Slotted Waveguide)• Size : 18” • HPBW: 5.5˚ • Gain: 31.0 dB• Side Lobes : -25 dB• Tilt: 0˚ to 15˚

System SpecificationsSystem Specifications

LocationCoordinates:18°28'30.30"N67° 7'13.81“W

Coordinates:18°28'30.30"N67° 7'13.81“W

Total radar height in site: 50ft Total radar height in site: 50ft

Radar Data Interface

PR-2 vs Nexrad Comparison

• Data Comparison: EWR vs Nexrad

Observations~ 30˚

Observations cont…

Google EarthGoogle Earth

Observations cont…

Nexrad starts plotting @ ~ 0dBz vs EWR @ 23dBz. Missing Light Rain?Nexrad starts plotting @ ~ 0dBz vs EWR @ 23dBz. Missing Light Rain?

Recent Ideas

Looking into modifying the transmitted pulse width.

Benefits:• Gain coverage within Aguadilla.• Ease the possibility of an external calibration (if in need).

Looking into modifying the transmitted pulse width.

Benefits:• Gain coverage within Aguadilla.• Ease the possibility of an external calibration (if in need).

Next Up…

• Modify EWR Source Code.• Establish DSL – File Transfer to UPRM.• Check for installation errors.• ** Modify pulse modulation for better coverage.

Crucial Needs…• EWR Source Code

• Update: EWR Agreed to give us code. It’s in due process.