Spatial perception and adaptive sonar behavior
نویسندگان
چکیده
منابع مشابه
Spatial perception and adaptive sonar behavior.
Bat echolocation is a dynamic behavior that allows for real-time adaptations in the timing and spectro-temporal design of sonar signals in response to a particular task and environment. To enable detailed, quantitative analyses of adaptive sonar behavior, echolocation call design was investigated in big brown bats, trained to rest on a stationary platform and track a tethered mealworm that appr...
متن کاملEnvironmentally Adaptive Sonar Technology
Our technical approach is aimed at two basic problems with undersea warfare: (1) knowing the environment, and (2) adapting the sensor to the environment to maximize sensor performance. A consequence of (1) in this approach is that the knowledge of the environment, along with accurate sensor performance models, provides more accurate feedback to an operator about current sensor performance, a re...
متن کاملAdaptive concurrent mapping and localization using sonar
In order to create a truly autonomous vehicle, the task of concurrent mapping and localization (CML) in an a priori unknown environment is an important problem. Traditionally, the task of CML has been separated from the vehicle's motion and sensing strategies. We introduce a method for adaptive concurrent mapping and localization in unknown environments using a scanning sonar sensor. This metho...
متن کاملAdaptive Beamforming for Sonar Audio
Sonar audio is a major tool used by sonar operators to assist in classifying acoustic contacts. In this paper we discuss some issues that arise when adaptive beamforming is used for sonar audio. Frequency domain beamforming is used to reduce computational cost, and diagonal loading of the cross-spectral matrix is used to obtain the best quality output. The effectiveness of a robust Capon beamfo...
متن کاملTrajectory Sonar Perception in the Ligurian Sea
This paper describes a new technique for tracking locally curved unknown objects using sonar. The approach explicitly accounts for relevant robot dynamics. Objects are tracked by looking for temporal sequences of observations that fit a kinematic model. The method is illustrated using data from a synthetic aperture sonar gathered by a BPAUV at NATO SACLANT’s GOATS 2002 experiment in the Liguria...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 2010
ISSN: 0001-4966
DOI: 10.1121/1.3504707