نتایج جستجو برای: tracking radar

تعداد نتایج: 150331  

2011
Gregory Newstadt Alfred O. Hero

System provisioning is the problem of determining the number of resources required to accomplish a complicated system level task, e.g. tracking or discriminating between N targets. This is a central problem in multi-target tracking with synthetic aperture radars where the number of targets can easily exceed the available resources. This paper treats the following conservative sensor provisionin...

2000
Hong JEONG Jeong-Ho PARK

Tracking many targets simultaneously using a search radar has been one of the major research areas in radar signal processing. The primary difficulty in this problem arises from the noise characteristics of the incoming data. Hence it is crucial to obtain an accurate association between targets and noisy measurements in multi-target tracking. We introduce a new scheme for optimal data associati...

2010
Wolfgang Konle

A new method to enhance the performance of multi radar tracking systems is presented in this paper. In parallel to an IMM model type tracker a second tracker estimates track heading and speed based upon differential measurements from multiple sensors. A differential measurement contains the differences between two subsequent measurements from one sensor. This new method accepts information from...

2009

A bistatic High Frequency (HF, or 3-30 megahertz band) radar has been developed for dual-use application to ocean current mapping and ship vector tracking. The radar can be deployed in a multi-frequency version, allowing it to sample ocean currents at different depths between 20 centimeters and 3 meters, and thus map ocean current vertical shear. The multi-frequency feature allows for more robu...

Journal: :International Journal of Fuzzy Logic and Intelligent Systems 2012

2012
I. Bilik J. Tabrikian

This1 chapter addresses the problems of minimum mean square error (MMSE) estimation in non-Gaussian linear and nonlinear systems. In many scientific and practical problems (such as control, astronomy, economic data analysis, communication and radar surveillance), estimation of time-varying system state using a sequence of noisy measurements is performed using the dynamic state-space (DSS) model...

2014
Peter W. Moo Zhen Ding

A phased array radar has the ability to rapidly and adaptively position beams and adjust dwell times, thus enabling a single radar to perform multiple functions, such as surveillance, tracking and fire control. A radar resource manager prioritises and schedules tasks from the various functions to best use available resources. Networked phased array radars that are connected by a communication c...

2005
Jost Koller Martin Ulmke

We present an application of a multi hypothesis tracking (MHT) algorithm to the case of ground moving targets detected by GMTI (Ground Moving Target Indicator) radar sensors. The algorithms for track extraction, prediction, filtering, and track maintenance are briefly described, and exemplary tracking results for simulated MTI data are demonstrated.

1998
Liang Zhao Charles E. Thorpe

In this paper, we present a car tracking system which provides quantitative and qualitative motion estimates of the tracked car simultaneously from a moving observer. First, we construct three motion models (constant velocity, constant acceleration, and turning) to describe the qualitative motion of a moving car. Then the models are incorporated into the Extended Kalman Filters to perform quant...

1998
Prithiraj Tissainayagam David Suter

In this paper we present a feature tracking system with automatic motion determination of features in an image sequence. The positions of features (corners) extracted in the first frame of a sequence are estimated and predicted in the subsequent frames by using an extension of Bayesian multiple hypothesis technique (MHT [2]) based on different motion models. The tracking of features is based on...

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