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RR-2100 Tracking / Ranging Radar by Photo-Sonics

Companies & Organizations:

United States of America

Photo-Sonics Inc
9131 Independence Avenue
Chatsworth, CA 91311


The RR-2100 Ranging Radar is an X-band Multiple Frequency continuous wave radar designed to be mounted on optical platforms. The purpose of the RR-2100 is to acquire and track moving targets with very high precision and deliver real-time range and guidance data at high rate to the optical platform.

 

The system measures directly in real-time:

 

Slant range

Radial velocity

Azimuth and elevation angles (optional)

Time synchronized to IRIG-B; other time references are available (e.g. GPS)

 

           

The range, angles and velocity measurements are based entirely on spectrum analysis and digital signal processing. This enables the system to measure all types of objects:

 

Aircraft, drones and towed-targets

Missiles and rockets

Projectiles of all types and calibers

Base bleed and rocket assisted projectiles

APFSDS and tracer projectiles

The system uses the X-band frequency in order to ensure:

High accuracy

Small size of equipment

High portability

High range performance

Operation under all weather conditions

Insensitivity to ionized gases and rocket exhaust plumes

 

The Multiple Frequency continuous wave Doppler radar technique gives the following advantages:

 

Optimal Range, Velocity and Angle accuracies

No minimum slant range

No minimum object size

Low elevation measurement

 

The RR-2100 system consists of a MFDR-2100 Multi Frequency Doppler Radar antenna, an RP-2100 Range Processor and a DC power supply. The RP-2100 incorporates two RS-422/RS-232 high speed interfaces for real time data to the optical platform and/or commands from the control panel or Weibel supplied instrumentation controller.

 

The MFDR antennas have a variable beam width from 10° x 10° to e.g. 2.5° x 5° with automatic or manual switching. The unique built-in self calibrating feature includes both the velocity measurement and the monopulse error phase measurement and ensures reliable and accurate results.

 

The software package for the system is constantly developed and improved to meet new requirements from our customers and to incorporate new features. The new versions of the software are made available to all customers free of charge.

 

The purpose of the Tracking Radar System is to acquire and track moving targets with very high precision and deliver real-time range and guidance data at a high rate to the optical platform. The system measures slant range, azimuth and elevation angles, and radial velocity directly in real-time. The range, angles and velocity measurement are based entirely on spectrum analysis and digital signal processing. The Weibel Monopulse Doppler Tracking Radar System is a portable X-band CW radar system consisting of a radar antenna, azimuth and elevation tracking controller and Doppler analyzer. Transmitting and receiving antennas are micro strip array antennas that are controlled from the instrumentation controller using an RS-422 serial interface. The tracking system is an active real time tracking system measuring radial velocity and azimuth  and elevation angles to the projectile. The angle measurement is based on monopulse angle discrimination technique. High speed digital signal processing carries out the calculation of the direction to the target.

 

The tracking system is based entirely on digital data acquisition, storing and processing. The velocity, range and angle measurements are based on spectrum analysis and digital signal processing only. This enables the system to measure on all types of moving targets. The system has a variable beam width from 10 degrees x 10 degrees to 1.25 degrees x 2.5 degrees with automatic or manual switching. The system is able to measure both going and coming targets. The unique built-in self-calibrating feature includes both the velocity and the monopulse error phase, and ensures reliable and accurate results.

 

           

Key Features

 

Slant Range

Radial velocity

Time synchronized to external reference e.g. IRIG-B

Azimuth and elevation error angles (optional)

Optimal range accuracy

Optimal velocity accuracy

Optimal angle accuracy

No minimum slant range

No minimum object size

Low elevation measurement

Multi object tracking

Variable beam width

Based entirely on digital signal processing

High dynamic range of receiver

Built-in self test

Built-in self calibration

Skin tracking

Transponder tracking

Insensitive to weather conditions

 

 

Technical Highlights

 

The system is designed to withstand shock, dust, sand, humidity, rain and salty air. The system is based on multiple frequency continuous wave Doppler radar technology giving real-time velocity and range data. The system uses X-band (10 GHz) frequencies for optimum range performance and position accuracy under all weather conditions. The system has high velocity and angle accuracy and a long measuring range due to unique velocity self calibration technology.

 

The system never needs to be calibrated, built-in I/Q calibration generator, ensures that the monopulse error signals are calibrated. High transmitting frequency based on extremely stable phased-locked oscillator (PLO) Low receiver noise figure - 2.0 dB Variable sampling rate and anti aliasing filter settings Variable and adaptive Fast Fourier Transformation (FFT) size from 32 samples to 16 Ksamples The system includes an adaptive opening angle feature variable from 10E x 10E to 1.5° x 5E. This ensures:

 

Immediate acquisition of the target (10Ex10E) and automatic narrowing of the beam for maximum performance.

 

Total flexibility for difficult test situation, e.g. sub munition testing

 

The system's modular construction makes future upgrading easy.

 

           

System Overview

 

The RR-2100 system consists of a Multi Frequency Doppler Radar (MFDR) antenna, an RP-2100 Range Processor, a DC power supply and an optional instrumentation controller with peripherals (laser printer and optical disk). The MFDR-2100 antenna is mounted on the Optical Tracking Platform (OTP) in a location where there is no interference with the optics.

 

The antenna can be supplied in one unit or in separate transmitter and receiver units depending on platform layout. The antenna can also be supplied with higher gain and higher output power for increased performance. The RP-2100 Range Processor and power supply can be mounted either behind the antenna or in the base of the Optical Tracking Platform. The entire system is controlled from the instrumentation controller or a customized control panel.

           

General Specifications

 

Ambiguity range:       0 to 200 km

Velocity range:           5 to 3500 m/s

Time to acquire:         0.1 sec

Range performance:  55 km, RCS= 1m2

Accuracy in 20 km, RCS = 1m2

Range                        0.03 m

Elevation                    0.8 mrad

Azimuth                      1.7 mrad

Velocity                       0.005%

 

Antenna

Transmitter type         Multiple Frequency CW

Frequency                  X-band, solid state PLO

RF bandwidth            10 MHz

Output power             30 W

Antenna gain              34 dB

Beam width                10° x 10° to 5° x 2.5°

Noise figure                2 dB

Receiver sensitivity    -162 dBm, BW=10 Hz

Receiver type             Monopulse I/Q with AGC

No. of receivers          8

Dynamic range           160 dB, BW=10 Hz

Output to processor    Max 12 Vp-p, 0-250 kHz

Dimension                   750x750x50mm or 2 units of 750x350x50 mm

Weight                         35kg or 2 units of 17kg

 

Processor & Power Supply

 

Input from antenna      Differential

Data output                 RS-232c or RS-422

Baud rate                    1200 to 500,000

Output rate                  Up to 100 Hz

Data protocol              Customer specified

Power supply             110 or 220VAC 50/60 Hz

Power consumption   500 watts

Dimensions                2 pieces – 19" rack 170mm high

 

Environmental

 

Humidity                     0 to 100%

Operating temperature      -20° C to +55°C

Storage temperature         -40° C to +65°C

Defense Products & Services: RR-2100 Tracking / Ranging Radar by Photo-Sonics
Companies & Organizations: 
Description: RR-2100 Tracking / Ranging Radar
Source of Information: Photo-Sonics Inc