Sound Transmission
Time-frequency perception
Absorbtion depends on medium
Absorbtion depends on frequency
Absorbtion depends on humidity
Scattering leads to frequency filtering
Frequency modulation resists distortion by scattering
Frequency transmission problem
Signal propagation near boundaries
Boundary effects
Transfer functions
Temperature gradients cause refraction
Wind can refract sound
Density gradients in water from temperature, pressure, or salinity cause refraction
Background noise can mask sounds
Vegetation causes scattering
Signal design is important for long range communication
Range of detection
Signal design and transmission distance
Signal design parameters
Optimal Signal Design
Adaptive signal design?
Sound transmission varies with habitat
Email: gw10@umail.umd.edu
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