The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper focuses on cooperative localization for multiple Autonomous Underwater Vehicles (multi-AUVs) and summarizes the research progress in recent years, including 1) The advancement of the concept cooperative localization 2) Classify the existing multi-AUV team structure 3) Analyze the algorithms of multi-AUV cooperative localization with different structures 4) Present the key issues in underwater...
The traditional position of ultra-short baseline (USBL) adopts single-frequency CW signal and phase difference to resolve. This method leaves the problem of phase difference measurement ambiguity. And its position accuracy cannot meet the requirement of engineering. Therefore, this system adopts the broadband signal as the responsive signal. This approach achieves position via measuring the time delay...
In this paper, a novel variable multiple step-size least mean square (VMSSLMS) adaptive filter algorithm with the l0-norm constraint is proposed, which both allows the step-size to vary for different taps and includes a sparsity constraint in the cost function. When channel changes suddenly, the filter can track the specific tap-weight fast to adapt to the variation of the channel. The l0-norm constraint...
A tank experiment on direct blast suppression (DBS) in bistatic sonar was conducted in Harbin Engineering University. Two algorithms were compared in data processing. The first one is jamming matrix algorithm and the second one is nulls constraint matrix algorithm. Both algorithms need the prior information of the direction of arrival (DOA) of direct blast (DB). Experimental results indicate that...
array estimation of wave directional spectrum needs to measure the same quantity of the different locations, then the cross-spectrum of different locations is calculated, finally wave direction distribution is estimated based on nonlinear equation between cross-spectrum and wave direction distribution. In the paper, a hybrid genetic algorithm is applied to modified MEM algorithm, the algorithm avoids...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.