By Topic

Heading Sensors for Sonar and Marine Applications, IEE Colloquium on

Date 12 Jan 1994

Filter Results

Displaying Results 1 - 9 of 9
  • Strapdown heading sensor for towed arrays

    Publication Year: 1994, Page(s):2/1 - 2/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (132 KB)

    Hydrophone arrays for locating acoustic noise sources in marine environments are often towed rather than platform mounted so that the arrays can be longer and hence better angular resolution can be obtained. However, the array shape and pointing direction, required for accurate location of the acoustic source, can vary considerably, particularly when the towing platform is manoeuvring, thus degrad... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Tutorial introduction and historical overview of the need for heading sensors in sonar applications

    Publication Year: 1994, Page(s):1/1 - 1/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (376 KB)

    The development of sonar systems is closely coupled to the evolution of the submarine. By the beginning of the twentieth century, the threat of a submarine force to commercial and naval shipping was starting to be appreciated. It is no coincidence that experiments using underwater sound were also taking place at this time. The development of sonar systems has progressed throughout the twentieth ce... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A high pressure resonant sensor

    Publication Year: 1994, Page(s):7/1 - 7/3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (120 KB)

    The author developed a silicon resonant sensor for measuring pressures up to 7000 psi. The micromachined resonator is bonded to a thick silicon diaphragm and is excited electrostatically. The resolution is better than 100 ppm View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Magnetic sensors for underwater navigation

    Publication Year: 1994, Page(s):3/1 - 3/7
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (276 KB)

    The increasing drive towards cost effective unmanned vehicle systems for air, land and underwater operations has brought new opportunities and demands for magnetic sensors. The development of unmanned air vehicles (UAVs) has been the most prevalent over the last few years. And during recent international conflicts, the UAV has provided its usefulness as an expendable and versatile surveillance pla... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Motion tolerant compass and attitude sensor

    Publication Year: 1994, Page(s):4/1 - 4/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (276 KB)

    This project started from a desire to make small low power magnetic compass systems for use in ocean current meters and other similar instruments subject to motions of the package. Previous work had shown that gimballed systems suffer serious dynamic errors when deployed under realistic conditions, other alternatives such as gyro mounted sensors are costly and have other disadvantages such as powe... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • IEE Colloquium on `Heading Sensors for Sonar Marine Applications (Digest No.1994/004)

    Publication Year: 1994
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (12 KB)

    The following topics were dealt with: heading sensors in sonar applications; strapdown heading sensor for towed arrays; magnetic sensors for underwater navigation; motion tolerant compass and attitude sensor; towed array shape and attitude estimation; high pressure resonant sensor; micromachined silicon accelerometers; and GPS applications in sonobuoys View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The response model-an operational model for towed array shape and attitude estimation from measurements by heading and depth sensors, validated on trial data

    Publication Year: 1994, Page(s):5/1 - 510
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (216 KB)

    An operational model for array shape and attitude estimation, based on the continuous measurement of heading and depth at a single position in the array is presented. This model, which we call the response model has been validated against the results from an independent method, that makes use of the differences in travel times of explosive signals to the hydrophones. The heading, depth and travel ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Micromachined silicon accelerometers for inertial sensing

    Publication Year: 1994, Page(s):8/1 - 8/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (156 KB)

    Accelerometers are used to provide the attitude reference for a variety of navigation systems including strapdown heading sensors, and also for a number of other inertial sensing applications. Accelerometer technology ranges from highly accurate but rather costly servo devices through to simple open-loop components which are used in less demanding applications. In recent years accelerometers have ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • GPS applications in sonobuoys

    Publication Year: 1994, Page(s):9/1 - 9/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (232 KB)

    Airborne submarine warfare (ASW) relies extensively on acoustic sonobuoys to locate targets. Presently the only means of locating these buoys after deployment is a very crude radiolocation technique using the buoy VHF transmitter, and involves undesirable delays. GPS has been proposed as a means of broadcasting buoy position back to the aircraft. Conventional GPS receivers in standalone mode canno... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.