Sonardyne have been engineering the future of underwater technology for over 50 years. Track, monitor, image, survey, navigate.
Segawa, SusumuDepartment of Ocean Sciences, Tokyo University of Marine Science and Technology, Tokyo, JapanSpringer-VerlagFisheries ScienceKaifu K, Akamatsu T, and Segawa S. 2008. Underwater sound detection by cephalopod statocyst. Fisheries Sci 74: 781-86....
The marine environment is complex and changeable. Factors such as temperature, salinity, and water flow can affect the propagation of sound waves, leading to signal attenuation, refraction, and scattering, which reduce the detection accuracy and reliability. For example, in deep - sea hydrothermal a...
Underwater Acoustic Detection and Signal Processing Near the Seabed 257 Because the wave is propagating, a certain amount of power flow across a unit area normal to the direction of the propagation. This amount of power is called the sound intensity and shown as P2 I (2.1) c where P...
Cetacean Research Technology provides hydrophones, acoustic analysis software and suction cups for cetacean and underwater sound research.
(Doppler velocity log), can be used to improve positioning accuracy by providing additional motion data based on the Doppler shift in sound signals bounced off the seabed. This data is another input to the INS signal processing that introduces additional velocity information, the speed and ...
Cetacean Research Technology provides hydrophones, acoustic analysis software and suction cups for cetacean and underwater sound research.
water and, as swimmers provided interference, flew a drone over the surface. The drone repeatedly sent brief radar chirps toward the water. When the radar signals bounced off the water’s surface, they revealed the pattern of vibrations from the sound waves for the system to detect and decode...
1) Underwater sound 水声声场 2) underwater acoustics 水声 1. Aunderwater acousticssignal detection technology based on Bootstrap method is presented. 提出Bootstrap方法的水声信号检测技术,将Bootstrap方法的数字仿真与经典统计学有机结合起来,利用小子样数据进行统计计算。
1) underwater sound detector 水声探测器2) underwater acoustic detection 水声探测 1. Target echo signal is the main information source in underwater acoustic detection system. 目标回波信号是水声探测系统主要的信息来源,在水声对抗仿真系统中,目标回波信号的仿真数据量又是制约仿真实时性的关键因素之一,...