A Hybrid Architecture for Radar ProcessingJack West, Hongping Li, Sirirut Vanichayobon, Seok-Hyun Ko, Jeff Muehring, John Antonio, Sudarshan Dhall

University of OklahomaDARPA Contract No. F30602-97-2-0297

SAR Processing Flow STAP Processing Flow

RangeCompression

DopplerFiltering

WeightComputation

RangeCompression

AzimuthProcessing

DataTransfer

DataTransfer

DataTransfer

Azimuth

Range

Range

Doppler

Cha

nnel

FFT Size

Azimuth Sectioned Convolutions

KernelSize

Section

Overlap

PCI MOTHER BOARD

PENTIUM DRAM

WIL

D

ON

E

SR

AM

SR

AM

AN

NA

PO

LIS

WIL

DF

OR

CE

AN

NA

PO

LIS

WIL

DF

OR

CE

AN

NA

PO

LIS

WIL

DF

OR

CE

AN

NA

PO

LIS

WIL

DF

OR

CE

HARD DISK DRIVE

Physical View of Prototype System

Data Source

VME

MercurySystem

CNCNPEPE... ...

SPARC

ReconfigurableSubsystem

DSP/GPPSubsystem

Data Sink

AnnapolisSystem 120 MB/sec

PC

120 MB/sec120 MB/sec

PC

PCI Custom Custom

PEPE...

ReconfigurableSubsystem

AnnapolisSystem

PCI

120 MB/sec

CN

CN C

N

CN

CN C

N CN

CN

CN

CN

CN C

N CN

CN

DR

AM

AS

IC

RIN

-T

VME BACKPLANE

ME

RC

UR

Y R

AC

E M

CH

9U

BO

AR

D

HA

RD

DIS

K D

RIV

E

DR

AM

SP

AR

C

RO

UT

-T FO

RC

E S

PA

RC

5V

CN PCI MOTHER BOARD

PENTIUM DRAM

WIL

D

ON

E

SR

AM

SR

AM

AN

NA

PO

LIS

WIL

DF

OR

CE

AN

NA

PO

LIS

WIL

DF

OR

CE

AN

NA

PO

LIS

WIL

DF

OR

CE

AN

NA

PO

LIS

WIL

DF

OR

CE

HARD DISK DRIVE

Architecture of Prototype System