Browsing CMRE Publications by Author "Bachmann, Wolfgang"
Now showing items 1-11 of 11
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A theoretical model for the backscattering strength of a composite roughness sea-surface
Bachmann, Wolfgang (NATO. SACLANTCEN, 1974/02)The surface-backscattering strength is calculated according to Rayleigh theory for surface excursions much smaller than the sound wavelength. By taking into account of self-shadowing and modulation of grazing angles, the ... -
Calculation of reverberation and average intensity of broadband acoustic signals in the ocean by means of the RAIBAC computer model
Bachmann, Wolfgang; De Raigniac, Bernard (NATO. SACLANTCEN, 1976/04)Based on the conventional ray-tracing principle, a fast numerical algorithm is developed that calculates averaged propagation loss and reverberation of underwater sound. The averaging is performed by summing incoherently ... -
Comparison of CONGRATS ray tracing predictions with MEDUSA measurements of reverberation
De Raigniac, Bernard; Bachmann, Wolfgang (NATO. SACLANTCEN, 1971/12)From the user's point of view, ray tracing is just a computer procedure which is inserted into larger programs of different degrees of complexity . The following table indicates in which kind of programs this procedure is ... -
Oceanic acoustic modelling: proceedings of a conference held at the Camera di Commercio, La Spezia, om 8-11 September 1975 - part 5: macro-scale phenomena
Bachmann, Wolfgang; Williams, Robert Bruce (NATO. SACLANTCEN, 1975/10) -
Oceanic acoustic modelling: proceedings of a conference held at the Camera di Commercio, La Spezia, on 8-11 September 1975 - part 1: noise and introductory matter
Bachmann, Wolfgang; Williams, Robert Bruce (NATO. SACLANTCEN, 1975/10) -
Oceanic acoustic modelling: proceedings of a conference held at the Camera di Commercio, La Spezia, on 8-11 September 1975 - part 2: bubbles
Bachmann, Wolfgang; Williams, Robert Bruce (NATO. SACLANTCEN, 1975/10) -
Oceanic acoustic modelling: proceedings of a conference held at the Camera di Commercio, La Spezia, on 8-11 September 1975 - part 4: sea bottom
Bachmann, Wolfgang; Williams, Robert Bruce (NATO. SACLANTCEN, 1975/10) -
Oceanic acoustic modelling: proceedings of a conference held at the Camera di Commercio, La Spezia, on 8-11 September 1975 - part 6: micro-scale phenomena
Bachmann, Wolfgang; Williams, Robert Bruce (NATO. SACLANTCEN, 1975/10) -
Oceanic acoustic modelling: proceedings of a conference held at the Camera di Commercio, La Spezia, on 8-11 September 1975 - part 7: field calculations
Bachmann, Wolfgang; Williams, Robert Bruce (NATO. SACLANTCEN, 1975/10) -
Oceanic acoustic modelling: proceedings of a conference held at the Camera di Commercio, La Spezia, on 8-11 September 1975 - part 8: sonar models
Bachmann, Wolfgang; Williams, Robert Bruce (NATO. SACLANTCEN, 1975/10) -
Oceanic acoustic modelling: proceedings of a conference held at the Camera di Commmercio, La Spezia, om 8-11 September 1975 - part 3: sea surface
Bachmann, Wolfgang; Williams, Robert Bruce (NATO. SACLANTCEN, 1975/10)