Policy on Intellectual Property Right (IPR)
Annex 1 System interoperability
1 Introduction
2 System interoperability
Annex 2 HF data services modem protocol using orthogonal frequency division
multiplexing
Annex 3 Electronic mail system using Pactor-III protocol, including the
system used by the global link network
1 The PACTOR‑III protocol (Technical Description by Hans-Peter
Helfert and Thomas Rink, SCS GmbH & Co. KG, Hanau, Germany)
1.1 Introduction
1.2 Speed levels and bandwidth
1.3 Modulation, coding, and data rates
1.4 Crest factor and transmitter output power
1.5 Cycle duration
1.6 Structure of packets and control signals
1.7 Online data compression
1.8 Signal characteristics and practical considerations
1.9 Performance measurements
2 Typical communication protocol
3 Global link network
Annex 4 Wideband HF data transmission
1 Introduction
2 System requirements
3 System overview
3.1 General information
3.2 HF radio link
3.2.1 Coast station
3.3 Working modes
3.3.1 Mode 1: Shore-to-ship link request
3.3.2 Mode 2: Ship-to-shore link request
3.3.3 Ship tracking
3.4 Frequency reuse
3.5 Internet protocol for boat communication system and global
maritime distress and safety service
3.6 Other internet protocol for boat communication applications
4 System architecture
4.1 General principle
4.2 Open systems interconnection model
4.3 Physical layer (L1)
4.3.1 Physical support
4.3.2 Physical presentation
4.3.3 Media access control
4.4 Link layer (L2)
4.4.1 Error correction
4.4.2 Filtering
4.4.3 Encrypting
4.4.4 Radio link management
4.5 Transport layer (L4)
4.5.1 Application layer (L7)
5 Layer L1 principle – orthogonal frequency division multiplexing
5.1 Introduction
5.2 Principle
5.3 Modulation
5.4 Synchronization
5.5 Spectral occupation of HF signal
6 Link layer principle (L2)
6.1 Error correction
6.2 Radio link management on the shore station side
6.3 Radio link management chronogram
7 Basis for experimentation
8 First test results
8.1 Propagation measure campaign, sea travel of ground wave
8.2 Channel modelling
9 Experimentation results
9.1 Results and interpretations
9.2 Influence of land on a mixed path land/sea
9.3 Data transmission
9.3.1 Coastal
9.3.2 Ship
9.4 Reception
9.4.1 Coastal
9.4.2 SHIP
9.5 Conclusions
Annex 5 Wideband HF data exchange system for point-to-point communication
1 Introduction
2 System overview
2.1 Shore station
2.2 Ship station
2.3 Communication manager
3 System architecture
3.1 Shore transmitter
3.1.1 Frequency shift keying modulator
3.1.2 Orthogonal frequency division multiplexing modulator
3.1.3 Radio frequency transmitter
3.2 Shore receiver
3.2.1 Frequency shift keying demodulator
3.2.2 Orthogonal frequency division multiplexing demodulator
3.2.3 Radio frequency receiver
3.3 Ship station
3.3.1 Controller
3.3.2 Frequency shift keying MODEM
3.3.3 Orthogonal frequency division multiplexing MODEM
3.3.4 Radio frequency transceiver
3.4 Communication manager
3.4.1 File system manager
3.4.2 Shore transceiver manager
4 Technical characteristics
4.1 Frequency shift keying modulation
4.1.1 Modulation
4.2 Orthogonal frequency division multiplexing modulation
4.2.1 Introduction
4.2.2 Orthogonal frequency division multiplexing
parameters
4.2.3 Scrambler
4.2.4 Modulation
4.2.5 Forward error correction
4.2.6 Synchronization
4.2.7 Spectrum occupancy of the radio frequency signal
4.3 Data rate
4.4 Shore station transmitter specifications
4.5 Shore station receiver specifications
4.6 Ship station transceiver specification
5 Communication protocol
5.1 Characteristics
5.2 Link establishment using frequency shift keying
5.2.1 Frame timing
5.2.2 Block format
5.2.3 Protocol scenarios
5.3 Data communication using orthogonal frequency division multiplexing
5.3.1 Frame timing
5.3.2 Information sending station control block format
5.3.3 Information receiving station response block format
5.3.4 Protocol scenarios