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Specialists in Defence & Aerospace Systems

RADAR SYSTEM OVERVIEW

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Expertise

- Antenna

- Pedestal Control

- Platform Stabilisation

- T/R Modules (S,L,C,X-Band)

- Receiver Exciter Units / Central Units

- Beam forming / Beam Steering

- Digital IF Receivers / Down converters

- Up converters / Waveform Generators

- Signal Processing Systems

- Algorithm development

- Data Recorder

- Radar Consoles & Display

- Radar Upgrades

- Radar Target Simulators

- Test Systems

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Example : TERLS Tracking Radar Upgrade

Thumba Equatorial Rocket Launching Station

C & S band tracking radar system

Completely upgraded and refurbished existing radar system except transmitter and antenna

Op freq; 2.7-2.9 MHz (S band) and 5.4-5.9 (C band)

1m range resolution

IF 30 MHz

Min detectable signal : -138 dbW

Overall dynamic range: 90 dB

Overall range accuracy: Better than 8 m rms (SNR 16 dB) and 10 mrms (SNR 10 dB)

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Scope of upgradation

• Up gradation of TERLS (ISRO) C / S band Radars.• The Up gradation covers replacement of all sub systems

other than Transmitter and Antenna sub systems• System has been delivered, Integrated with Tx and Antenna

and undergone Acceptance tests • The Hardware & Software sub systems developed to meet

the new specifications of ISRO which are as follows: RF Front End and Simulator Digital Receiver LO and AFC Range Tracking Subsystem (RTS) Data Processing Subsystem (DPS) Control Console Display Subsystem (CCDS) Target simulator

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Scope of up gradation

Algorithms involved

Range Error Computation Angle Error Computation Noise figure computation Alpha, Beta, Gamma algorithm implementation S-Curve calibration Sun calibration RF axis shift estimation Angle/Range Tracking On-Axis tracking Staggering of pulses to avoid blind zone occurrence Zone verification

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Real Time Display C-Band

Touch screen panel

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Exciter/ Receiver / Processor

RF----------------IF------------------- Raw data Processing-----Recorder..

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S-Band TR Module Specification

Parameter : RequirementsRF Frequency Range : 3.1-3.5 GHzInput Power Level : 0 dBmTransmit Output Power Level : 100W min. over temperatureMaximum Pulse Width : 100uSDuty Cycle : 20.00%Power Droop : 0.8dB maxRF Pulse Rise /Fall Time : 200ns max.Harmonic Rejection : 40dBc min.Input VSWR (Tx) : 1.5:1Output VSWR (Tx) / Input VSWR (Rx) : 2.0:1T/R Switching Time : 0.2uS max

S-Band T/R Module

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Products developed for DRDO

Airborne Central Unit ( Receiver / Exciter) for LSTAR - LRDE

Central Unit for Prog-AD Radar : LRDE

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Features

• Generates control signals for Active Antenna Array unit using LVDS signaling

• Radar Signal Processing unit interfaces with CU using RS422 COM port, 2 Fast Ethernet and 2 Giga bit Ethernet

• Channel switch matrix gives redundancy in Analog Receiver Mono Pulse channels in case of any Mono pulse channel failure in CU

S-Band Central Unit for Radar

Specifications• Provides +19dBm Tx Drive Signals, over 3.1 to

3.5GHZ Frequency Range

• 42 LO1 spots generation within 1uS switching

• Phase matched six dual stage down conversion Analog Receiver with 70dB dynamic range

• Radar Environment Simulator Module and IOT gives Internal and External BIT Feature

• Single Six channel Digital Receiver board digitizes and decimates the IF data and communicates with RP through 2.5G optical SFPDP

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Airborne Central Unit

S-Band Central Unit for Radar

ARX RES LO UPCONVERTER

MOTHER BOARD

CUC IOT DRX

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RF modules

RF Modules with integrated digital control.

-Analog Receivers-Radar Environment Simulator-RF Channel Switch Matrix-Local Oscillators

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Digital Receiver boards

• Down Converters • Dual IF Processor• Quad IF Processor• Six Channel IF receivers • Designs based on

14 bit 105MSPS ADC14 bit 190 MSPS ADC16 bit 130 MSPS ADC12 bit 400 MSPS ADC Virtex II, Virtex II Pro, Virtex IV , Virtex V

• Up Converter / Waveform Generators 14 bit 400MHz DAC

• IO and Timing Card• All on custom and standard VME form factors

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Products developed for DRDO

Range of Digital Receivers & Waveform Generators for various Radars

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PowerPC Processors for Signal Processing

A Complete line up of power PC based processor boards with board Support packages, Advanced debugging support

Range of COTS Power PC

-Processors- PPC 7448- PPC 7457- PPC 7410- PPC 750- PPC 5200B

-Form factor- VME- VPX- cPCI- Custom

-Support- DP CHRONO- Vxworks- RT Linux- Lynx

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Next Gen VPX ; COTS solution by DP

Raw Data I/P

Serial FPDP

VPX SBC

VPX Quad

VPX Quad

VPX Quad

Serial FPDP

SRIO/ PCI Express

Processed Data

SRIO/ PCI Express

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VPX 8640D Power PC SBC

Features of DP-VPX-0689

• Latest PowerPC Processor 8640/8640D with Altivec @ 1067MHZ

• Integrated L1 and L2 cache with ECC for each core

• Up to 2GB DDR2 SDRAM operates up to 250MHz

• Up to 512MB of User Flash and up to 256MB of Boot Flash and up to 16GB NAND Flash memory

• 128KB of NVSRAM with integrated RTC & WDT

• VME 64X 2esst VME Support

• Four Gigabit Ethernet ports

• Quad or Dual x4 SRIO or Quad x4 PCIe connection to P1 Connector

• 2 XMC sites with up to x4 SRIO and x8 PCIe support

• Vxworks, Linux and Lynx BSPs

• Built In Self Test Air and conduction cooled versions

• Altivec optimized Libraries

• Interprocessor Communication Library

• Optimized Signal Processing Libraries

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VPX QUAD 8641 Signal Processor

Features of DP-VPX-0659

• Latest PowerPC Processor 8640/8640D with Altivec @ 1067MHZ

• Integrated L1 and L2 cache with ECC for each core

• Up to 4GB DDR2 SDRAM operates up to 250MHz

• Up to 512MB of Flash

• 128KB of NVSRAM with integrated RTC & WDT

• Four Gigabit Ethernet ports (configurable to Front /Rear IO)

• Four x4 SRIO connections to P1 Connector as per VITA 6.3

• Four EIA-232 Interface either to Front or Rear IO and Four EIA-422 interface to Rear IO

• One XMC site with up to x4 SRIO and x8 PCIe support as per VITA 42.2

Applications• Radar Signal Processing

• Image Signal Processing

• Artificial Intelligence

• EW / ECM / ECCM

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Digital Beam Forming

Digital Summation

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AKASH Sub Systems

BLR / FLR Computing System

BCC / FCC Computing System

GCC / SCC System

Standardization of PowerPC (7448) for all AKASH Sub systems

BLR BCC

GCC

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IFF receiver and decoder

Specifications

Frequency of Operation : 1030MHz +/-0.2MHzSensitivity : -79dBmDynamic Range : 60dBBandwidth 3/40/60 dB : =>6/=<24/=<50MHzSpurious Signal at 1030 +/- 30MHZ : 60dBcSelf Test Generation : -70dBm @ 1030MHzLO Input :+13dBm @ 1090MHzDPSK Data Output : LVTTLFinal Video Output : LVTTLWeight : <800grms

Environmental Specifications:

Operating Temperature : -40 to +71°Storage Temperature : -55 to +95° Relative Humidity : 93% at +71°Cooling Method : Conduction

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Airborne Weather RADAR

Data Patterns is pro-actively developing an Airborne Weather Radar

• This is very similar to radar used in ALH

• This Radar works on X band with 240 NM range

• Weather alert signals within 25 NM

• Configured around 10KW Magnetron.

• A Super heterodyne receiver with IF at 30MHz for reception of Radar target and beacon transponder signals is under development.

• The antenna scan controller with 12” flat plate array antenna is part of the development.

• The Signal processing and display includes LCD colour display with appropriate Man Machine Interface and Processor unit for handling Radar Data, drive controls and interfaces to the helicopter on-board systems.

• A technical consultancy agreement is in position with ISRAD in design and development of this Weather Radar

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Communication Interfaces for Airborne SV2000 Radar

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Systems

Operations Console

-Single / Dual 20.1” Radar Display-Graphics Adapters-Integrated VME System-Test / Application software-Custom interfaces / Keyboards-JSS55555 System

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15.1”

3 ATI, 480x480

resolution

4x5 ATI, 640x480

resolution

6x8 MFD, 1024x768

resolution

15.1”, 1024x768 or1600x1200

resolution

4x3

640x480 resolution

Range of Display Products

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Contact Information

Data Patterns India Pvt Ltd#105, 10th Cross, 1st Stage, Indira NagarBangalore - 560 038 

Phone : +91-80-4242 4141, Fax      : +91-80-4242 4142Mobile : +91-94484 59247Email  : kuppu@datapatterns.co.inURL    : www.datapatternsindia.com

 

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Thank You