Communications and GPS Navigation Program Office ( · PDF fileCommunications and GPS...
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Program Executive OfficeCommand, Control, Communications, Computers and Intelligence (PEO C4I)
Communications and GPS NavigationProgram Office (PMW/A 170)
High Frequency Distribution Amplifier Group (HFDAG) System Design 12 February 2014
David WallaceSSC Pacific, DMR
• High Frequency Distribution Amplifier Group (HFDAG) Program Overview
• HFDAG Functional Architecture
• Emerging DMR HF Technologies
Agenda
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Program Overview
High Frequency Distributed Amplifier Group
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• High Frequency (HF) Distributed Amplifier Group (DAG) is the Navy’s Program of Record (POR) HF system
• HFDAG is the follow-on replacement to HF Radio Group (HFRG)• HFDAG is a modular architecture utilizing the following core
components:Digital Modular Radio (DMR) as the HF transceiverCommercial Off the Shelf (COTS) to the best extent possibleProcurement for Navy-unique requirements
• Initial procurements are intended for Ship Construction (SCN) platforms::LPD (Amphibious Transport Dock), 16-Channel SystemDDG-51 (Guided Missile Destroyer), 8-Channel SystemDDG-1000 (Guided Missile Destroyer), 4-Channel SystemLHA (Amphibious Assault Ship), 16-Channel SystemCVN (Aircraft Carrier), 16-Channel System
• Space and Naval Warfare Command (SPAWAR) Systems Center Pacific (SSC PAC) is the system designer and integrator
What is HFDAG?
Interesting Fact: The USN has the highest HF performance demands and channel count requirements of any Navy in the world
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HFDAG Schedule
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OSAJJMAMFJDNOSAJJMAMFJDNOFY 14 FY 15
SAJJMAMFJDNOFY 13
SAJJMAFY 12
HFDAG Program TimelineIRD Design Complete
SW Build 6.4.4
SW Build 6.5
SW Build 6.5.1
HFDAG System Design and Prototype
PPS Prototype
PACU Prototype
Procure Racks Build Deliver
Functional Architecture
High Frequency Distributed Amplifier Group
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• In the HFDAG Functional Architecture, a single transmit and receive chain consists of:
Transmit and receive baseband input and outputA DMR radio channel (each DMR has four channels or transceivers)Pre/Post Selector (PPS)Flexible Power Management Unit (FPMU)Power Amplifier (PA) and Power Amplifier Control Unit (PACU)System Transmit and Receive Combining NetworksReceiver Antenna Patch Panel
– 30 MHz Low Pass Filtering (LPF) and Surge SuppressionLightening/EMP Arrestors, Transmit and Receive Antennas (procured by NAVSEA)
HFDAG SystemFunctional Architecture Overview
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Simplified Single-Channel Block Diagram
Digital Modular Radio (DMR)
• The DMR, AN/USC-61(C), is the first software defined radio to become a communications system standard for the U.S. Armed Forces. The compact, multi-channel DMR provides multiple waveforms and multi-level information security for voice and data communications from the core of the network to the tactical edge
• Four full-duplex HF transceivers per radio• Product Maturity: Full Rate Production (FRP)
HFDAG SystemDigital Modular Radio Overview
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Simplified Single-Channel Block Diagram
• Reprogrammable Waveform Capabilities
MIL-STD-188-110A HF ModemMIL-STD-188-110B HF Modem (External) MIL-STD-188-141B HF ALEHF/UHF Link-11UHF Link-4AVHF/UHF LOSAM Civil and Military Aviation (WB/NB)FM Voice and Data (WB/NB)SINCGARS SIP/ESIP (US ONLY)Have Quick I/II (US ONLY)FSK/BPSK/SBPSK/QPSK/CPMUHF SATCOM – MIL-STD-188-181B, 182A, and 183A
DMR Overview (cont’d)DMR Capabilities for HF, VHF/UHF LoS and UHF SATCOM
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• Reprogrammable Voice and Data Security Options
KY-57/58KGV-11KGV-10KG-84A/CKYV-5 (ANDVT)KY-99AKWR-46Others as required
• Frequency Band2 MHz to 2 GHz contiguous
• Fully qualified to shipboard environment
• The PPS provides configurable attenuation, gain, limiting and bandpassfunctions for each HF channel in the HFDAG system
Protects Downstream equipment from high power interferersProvides filtering to achieve optimal frequency separation and maximize simultaneous channel count operationsDoes not introduce any spurious emissions into the systemSupports Half-Duplex Transmit and Receive
• The PPS is the Line Replaceable Unit (LRU) Four LRUs (4 Half-Duplex Channels) are installed in a single rack-width
• System Calibration (SYSCAL) using output power detectorLink-11 requirement for power control of over/undershoot
HFDAG SystemPre/Post Selector (PPS)
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• Performs RF switching between the DMR and PAs
E.g., DMR 712 Channel 2 is connected to PA #1May assign 1, 2 or 4 PAs per DMR exciter
HFDAG SystemFlexible Power Management Unit (FPMU)
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Simplified Single-Channel Block Diagram
• PACU enables DMR HF waveform control of up to eight independent PAs
• The PACU stores health, status and calibration information for each PA
• The PACU is invisible to the DMR radio
• Interfaces with the PPS, FPMU and PA
HFDAG SystemPower Amplifier Control Unit (PACU)
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Simplified Single-Channel Block Diagram
• Thales UK PA8100 1 KW RF Linear Power Amplifier
Self-Contained, Solid-State, 11 U ChassisAutomatic Level Control (ALC)All LRU assemblies are field replaceable
HFDAG SystemPower Amplifier (PA)
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Simplified Single-Channel Block Diagram
• RAPP provides manual connections for up to 12 receivers
LPD Baseline configuration has six output ports per Antenna input portOther ships may use 12 ports per antenna by using 2:1 splitterEach 16 channel system has two RAPPs for up to 24 receive output ports
• Each RAPP unit provides spare ports, 2:1 splitter and cable connections for up to 4 receive antenna inputs
• Provides filtering and secondary surge suppression
HFDAG SystemReceive Antenna Patch Panel (RAPP)
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Simplified Single-Channel Block Diagram
Output power comparison between HFDAG and HFRG 16 channel systems
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CircuitsHFRG
Power (W)/CircuitHFDAGCircuits
HFDAGPower (W)/Circuit
16 50 12 1258 125 6 5004 500 4 2502 2000 3 2000
2 10001 4000
HFDAG System
Emerging DMR HF Technologies
High Frequency Distributed Amplifier Group
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• DMR current scanning function allows users to guard multiple channels/circuits
Each DMR channel can guard up to 10 channelsWhen a receive signal is detected the scanning stops and the audio is passed to the handset User picks up the handset and talks back on the channel last received or selects one of the other guarded channels/circuits
• HFVCE coming in DMR software version 6.5.1 allows four priority channels instead of just one currently
If no receive signal is detected, the user can click the push-to-talk up to four times to select one of the four priority channels. The DMR will announce which channel the user selectedAllows single handset/RF channel to virtually appear to the operator as up to four independent RF channelsSpeed dialing
High Frequency Virtual Channel Exploitation (HFVCE)
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• Allows one DMR channel (with one Red Phone) to effectively guard four HF frequencies
• Each DMR channel can listen to up to 10 channels.
Upon receipt the operator can talk to any of the incoming 10 stations via an operator configurable dwell.
• Crypto keys need to be the same on all channels.
HFVCE is a Four-FoldCapacity Increase
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High Frequency Dynamic Routing (HFDR)
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• HFDR coming in DMR software version 6.5.1 assigns an HF frequency to up to eight audio ports
This effectively doubles the HF voice capability of a DMR channel from four audio portsDifferent crypto keys can be assigned to each audio portThe DMR does all the routing automaticallyNo action is required by the Red Phone userOnly four audio ports per channel have guaranteed service and are priority based. Preemption is automatic for non-priority users. Tones or audio is heard at the handset for those non-priority users being kicked
• Automatically selects an available RF transmission path based upon pooled resource availability
Detects failures and selects alternate pathDistributes operational hours among assets, improving MTBFEach circuit can be assigned a priority level
High Frequency Dynamic Routing (HFDR)
RxF1F2
A B C D
F1A
F3F4
F5F6
F7F8
B C D
F3F4
F5F6
F7F8
F2F5F6
F4F7F8
F3
F1A
F2A
C D
F7F8
F6
D
F5F4
F1A
F2A
F3B
F1A
F2A
F3BF4B
Rx
Rx
Rx
Rx
Receiver Scanning
Half-Duplex Dedicated Rx/Tx
Channels
Full Scanning1-Channel Dedicated
2-Channels Dedicated
3-Channels Dedicated
4-Channels Dedicated
Dynamic Assignments
RF-ARF-BRF-CRF-D
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HFVCE and HFDR
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• On a 16-channel HFDAG systemA mix of HF uses can be deployed on a single DMR; e.g. Ch 1 and 3 is DR, Ch 2 is Link-11 and Ch 4 is VCE
HFDR provides 32 HF frequencies
HFVCE provides 16 HF frequencies
Combined, they provide 40 frequencies– 16 HFVCE on four DMR channels– 24 HFDR on twelve DMR channels
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We get IT.We also integrate it, install it and support it. For today and tomorrow.
BACKUP
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• The PPS is the Line Replaceable UnitFour LRUs (four half-duplex channels) are installed in a single rack-widthThe overall receive gain of each PPS channel is 22 dBThe overall transmit gain of each PPS channel is 23 dB
• An example of the PPS gain line-up is illustrated in the DMR HF PPS Functional Block Diagram
Pre/Post SelectorBlock Diagram
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• PACU enclosure contains eight independent PA driver modules (PADM), two 5-port 100MB IEEE 802.11 Ethernet hubs, external-device power supplies, and a control panel
• Control panel RF Inhibit switches enable operator interruption of the PA output signal
• Control panel LCD display enables driver module control and status to the two FPMUs, eight PPSs and eight PAs
• Provides redundant 24 VDC to the two FPMUs and 12 VDC to the PPSs
• All PADM modules are hot swappable.
Power Amplifier Control UnitInterfaces
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HFDAG SystemReceive Antenna Patch Panel (RAPP)
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HFDAG System Overview16-Channel Configuration
CVN, LHA, LPD Classes
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HFDAG System Boundary
16-Channel HFDAG SystemTransmit Configuration (LHA)
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30 MH
z LPF
30 MH
z LPF
30 MH
z LPF
Lightning/EMP Protector
Lightning/EMP Protector
Lightning/EMP Protector
HFDAG System Boundary
16-Channel HFDAG SystemReceive Configuration (LPD)
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Primary Lightning/EMP Protector
Primary Lightning/EMP Protector
Primary Lightning/EMP Protector
Primary Lightning/EMP Protector
HFDAG System Overview8-Channel Configuration
DDG-51 Class
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HFDAG System Boundary
8-Channel HFDAG SystemTransmit Configuration (DDG)
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8-Channel HFDAG SystemReceive Configuration (DDG)
HFDAG System Boundary
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HFDAG System OverviewInterfaces
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System Physical RF Interfaces
System Physical Control Interfaces