R&D In Navy Phased Array Radar
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R&D In Navy Phased Array Radar. Dr. Michael A. Pollock Office of Naval Research, ONR 312 Surface and Aerospace Surveillance National Symposium on Multi-function Phased Array Current State of Military Investments in Phased Array Radar October 11, 2007. Navy Phased Array Radar Highlights.

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R&D In Navy Phased Array Radar

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Rd in navy phased array radar

R&D In Navy Phased Array Radar

Dr. Michael A. Pollock

Office of Naval Research, ONR 312

Surface and Aerospace Surveillance

National Symposium on Multi-function Phased Array

Current State of Military Investments in Phased Array Radar

October 11, 2007


Navy phased array radar highlights

Navy Phased Array RadarHighlights

  • Navy is conducting research and development (R&D) on phased arrays across a broad range frequency bands including S-band.

  • The primary application of S-band is volume surveillance from surface combatants.

  • Mission requirements, platform constraints and environmental challenges have motivated research solutions for high sensitivity, wide dynamic range and flexible time energy management.

  • The S&T strategy includes pushing hardware and software Open Architecture into the radar, not just the combat system.


Surface combatant missions

Surface Combatant Missions

Volume Surveillance

Ship Self-defense

Volume Functions

Volume Search

  • High Power Discriminator (X-Band)

Volume Search

Air Control

High Power

Discrimination

Aircraft Control

Long-Range Search

Missile Track / Mid - Course

Communications

Electronic Protection

  • Solid State SPY (S-Band)

Periscope

Detection

Track

While Scan

Surface

Search

Horizon

Search

Target

Track

  • MFR

  • Horizon Search

  • Missile Illumination

Horizon Functions

Target

Illumination

High power, multi-function radar (X-band)

High power, S-Band Advanced Radar (SBAR)


Navy radar roadmap studies

ASN (RDA)

OPNAV

RADAR RESOURCE STUDY

TECHNOLOGY ROADMAP

RARST

ROSA

Navy Radar Roadmap Studies

Current

Fleet Radars

Near-Term

(2000-2005)

Mid-Term

(2005-2012)

Far-Term

(2012+)

TBMD / Area AAW

SPY-1 A

SPY-1 B

SPY-1 D

TAMD Radar Suite

(Solid State S-Band,

HPD-X)

SPY-1B,D(V)

Area TBMD Radar Upgrades

NTW

Radar Upgrades

Air Search Radars

SPS-40

SPS-49

SPS-52

SPS-48C

SPS-49A

SPS-48E

SPS-48E

VSR

VSR

MK-23 TAS

Fire Control Radars

MK-95

SPQ-9

CAS / STIR

SPG-60

SPQ-9B

MFR

MFR

SPG-62

Air Traffic Control Radars

SPN-43

SPN-41

SPN-46

Studies point out the need for next generation radars to neck down for life cycle cost savings, and to modernize so that US forces will not face 2020 threat with 1960s technology


Navy phased array evolution

Navy Phased Array Evolution

Passive Array

ActiveElement

Digital Array

Analog Beamformer

T/R

T/R

T/R

T/R

T

DDS

R

A/D

T

DDS

R

A/D

T

DDS

R

A/D

Analog Beam Former

High Power

Amplifier

LNA

Digital Beam Former

Waveform

Generator

Rec.

A/D

Rec.

A/D

Waveform

Generator

Waveform

Controls

& Clocks

  • Future Radar

  • Digital Beam Forming

    • Multi-beam operation

  • Flexible time energy management

  • Power Aperture Gain Improvement

    • Large high power aperture

AEGIS AN/SPY-1

(Currently Deployed)

VSR

(Current Acquisition)


Open architecture breakout

Open Architecture Breakout

Process Synchronous Radar

Data over Asynchronous

COTS Networks

Navigation

System

(NAV)

Combat

System

(CS)

NAV

CS

Radar Controls

& Status

NAV Data

Processed Data

RCPS

(CARP)

Source Clock & Local Oscillator

Radar Control Processor

Subsystem (RCPS)

Radar Operation Administrative Commands and Status

Transmit

Waveforms

Processed Data

Element Data

Beam Data

AS

(Future)

DREXS

(DAR)

DBFS

(CARP)

DSPS

(CARP)

HMIS

(CARP)

Received Echo Signals

Antenna

Subsystem

(AS)

Digital Receiver/

Exciter Subsystem

(DREXS)

Digital Beamformer

Subsystem

(DBFS)

Digital Signal

Processor Subsystem

(DSPS)

Human-Machine

Interface Subsystem

(HMIS)

Specified hardware & software subsystem interfaces enable multiple vendor, rapid tech refresh and program re-use


Drex oa developments

DREX OA Developments

X-Band DREX

X-Band

Multiple Digital Receiver Exciters

One Common Interface

C-Band

C-Band DREX

Three S-Band DREXs

S-Band

Down Select

VHF through S-Band

Affordability / Miniaturize

Wideband DREX


Rd in navy phased array radar

OA Digital Beam Forming

Fiscal Year0304050607

Build : 1 2 3 4 5 Chg

Channels/Board: 4 4 4 412 3x

Boards: 1 2 618 9

Channels: 2 42256 108 50x

Beams: 1 2 416 16 16x

Cost/Channel: $10K$10K$5K$5K $2.3K 25%

Size/Channel: 1U 1U0.25U0.25U 0.1U 10%

All interfaces are Ethernet

Ongoing Improvements to Size, Cost, and Capability


Open back end processing

Open Back End Processing

Resource

Scheduler

10GB

Network

Switch

Blade

Processing


Rd in navy phased array radar

Doppler / Detection 1

Doppler / Detection 2

Doppler / Detection N

Open Architecture DSP

Gig-E

Gig-E

Gig-E

Gig-E

Gig-E

Gig-E

PC 1

PC 2

PC M

Radar Control Server

bc635 Time Card

Gig-E

Gig-E

Gig-E

Gig-E

Gig-E

Gig-E

Gig-E

Gig-E

GUI Display Server

DSP Interface Server

DSP Scheduler Board

Force 10 Switch

10 Gig-E

10 Gig-E

10 Gig-E

10 Gig-E

Gig-E

Gig-E

Gig-E

Gig-E

bc635 Time Card

Switch

1 Gig-E

DDM Interface Server

Gig-E

Gig-E

bc635 Time Card

Display

1 Gig-E To DDM’s, Dual-Bonded 1 Gig-E To Each Server


Navy par and mpar synergy differences

Navy PAR and MPARSynergy/Differences

  • NPAR and MPAR have in common elements of:

    • T/R Electronics

    • Digital Receiver Exciter

    • Signal Processing and Controls

    • Digital Beam Forming

  • NPAR and MPAR have different:

    • Installations restrictions

    • Performance requirements

    • Mission requirements

    • Procurement quantities

  • A well defined OA would allow greater opportunity for re-use across the government programs.

    • It must support the cost and requirements sensitivities of all customers – not clear this is possible.

    • It should result in cost savings.


  • Navy phased array radar summary

    Navy Phased Array RadarSummary

    • The primary application of S-band radar technology is volume surveillance.

    • The Navy is supporting on-going S-band technology base and affordability development.

    • There are differing mission requirements, platform constraints, environmental challenges, and cost constraints between NPAR and MPAR.

    • The Navy S&T strategy includes pushing hardware and software Open Architecture into the radar, not just the combat system.


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