Nothing Special   »   [go: up one dir, main page]

Bradbeer et al., 2003 - Google Patents

Using multi-frequency modulation in a modem for the transmission of near-realtime video in an underwater environment

Bradbeer et al., 2003

View DOC
Document ID
13908071915893504966
Author
Bradbeer R
Law E
Yeung L
Publication year
Publication venue
2003 IEEE International Conference on Consumer Electronics, 2003. ICCE.

External Links

Snippet

The system described in this paper uses multicarrier modulation, and has been successfully tested at a data rate up to 10 kbps over 1 km. The system algorithm generates 48 frequencies for transmitting 48 parallel bits of data in each packet. A long transmitted signal …
Continue reading at www.robin.bradbeer.hk (DOC) (other versions)

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; Arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks ; Receiver end arrangements for processing baseband signals
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; Arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks ; Receiver end arrangements for processing baseband signals
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; Arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels; Baseband coding techniques specific to data transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/32—Reducing cross-talk, e.g. by compensating
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
    • H04B13/02—Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy

Similar Documents

Publication Publication Date Title
Kilfoyle et al. The state of the art in underwater acoustic telemetry
CN101567727A (en) Differential cyclic shift spread-spectrum underwater sound communication method
Brady et al. Underwater acoustic communications
CN102170314A (en) Hyperbolic frequency-modulation spread spectrum acoustic communication method
Bradbeer et al. Using multi-frequency modulation in a modem for the transmission of near-realtime video in an underwater environment
Catipovic et al. Spatial diversity processing for underwater acoustic telemetry
Thottappilly OFDM for underwater acoustic communication
Park et al. Performance evaluation of underwater acoustic communication in frequency selective shallow water
Thi et al. Low complexity non-uniform fft for doppler compensation in ofdm-based underwater acoustic communication systems
Riedl et al. Must-read: Multichannel sample-by-sample turbo resampling equalization and decoding
Yoshizawa et al. SC-FDE vs OFDM: performance comparison in shallow-sea underwater acoustic communication
CN106357376B (en) Resource allocation methods of the relay cooperative underwater sound communication system based on ARQ feedback
He et al. Reliable mobile underwater wireless communication using wideband chirp signal
Hursky et al. Passive phase-conjugate signaling using pulse-position modulation
Ashri et al. BER of FRFT-based OFDM system for underwater wireless communication
Tong et al. Channel equalization based on data reuse LMS algorithm for shallow water acoustic communication
Ebihara et al. Basic study of orthogonal signal division multiplexing for underwater acoustic communication: A comparative study
Yeung et al. Underwater acoustic modem using multicarrier modulation
Kumar et al. DCT based OFDM for underwater acoustic communication
Xue et al. Impact of sea surface scattering on performance of QPSK
Kim et al. Effect of frequency dependent multipath fading on non-coherent underwater communication system
Law et al. Communication with an underwater ROV using ultrasonic transmission
Beaujean et al. A new multi-channel spatial diversity technique for long range acoustic communications in shallow water
Law et al. Using multicarrier modulation in an ultrasonic data link to communicate with an underwater vehicle
Suryawanshi et al. Underwater communication by using OFDM system