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.
In this paper, a nonparametric approach for time-of-arrival (TOA) estimation in impulse radio ultra wide band (IR-UWB) signals is proposed. It exploits the idea of nonparametric detection, which is always utilized in radar systems for detecting targets in a background of noise with unknown statistical properties. The proposed nonparametric TOA estimator is obtained by basing a well-known generalized...
ISAF (icosahedral symmetry-adapted functions) algorithm is the new high-resolution algorithm of icosahedral molecules. But its running speed is very slow because of the time-consuming operations of mapping sampling points into 3D space. In this paper, a fast mapping method is proposed to increase the running speed of this stage. First of all, the angle corresponding to one pixel arc in the maximum...
The traditional Finite Element Method (FEM) and Statistical Energy Analysis (SEA) are widely used in predicting structure noise of vehicles. However, these two kinds of methods both have defects in solving the Mid-Frequency problems. In this work, a hybrid FE-SEA vehicle modal is built to analysis the structural-acoustic system over frequency range 200–500 Hz. Experiments are carried out to acquire...
Time-of-arrival (TOA) estimator design for impulse radio ultra-wideband (IR-UWB) ranging demands high sampling rate high resolution ADC, which is difficult to implement. Some tradeoffs can be made such as limiting amplitude resolution. In this paper, we propose a two-step threshold selection TOA estimator using a two-bit ADC. The quantization threshold of ADC is set as the coarse threshold to distinguish...
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.