نتایج جستجو برای: radar clutter
تعداد نتایج: 40716 فیلتر نتایج به سال:
With the technological growth of broadband wireless technology like CDMA and UWB , a lots of development efforts towards wireless communication system and Imaging radar system are well justified. Efforts are also being imparted towards a Convergence Technology.. the convergence between a communication and radar technology which will result in ITS ( Intelligent Transport System ) and other appli...
Surface Wave High Frequency Radars (SWHFR) are taken into account in the content of modeling and simulation challenges. Examples related to multi-mixed path surface wave propagation, radar cross section (RCS) prediction, and total radar echo showing target, clutter, noise, and interference are presented.
Radar clutter is very complicated signal, because it is a kind of random process and invisible to human. As a result, besides instrumental parameters, environmental parameters will play a critical role in later data analyses. At present, the research about radar clutter has become a special field, which greatly affects the development and application of radar. This paper presents an innovative ...
This work addresses the problem of covariance matrix estimation for ocean clutter modeling. For ship detection based on polarimetric synthetic aperture radar (PolSAR) imagery and constant false alarm rate (CFAR) detectors, accurate ocean clutter modeling is essential. The covariance matrix provides all the polarimetric information of the ocean clutter and its estimate is always involved in PolS...
Development of the Advanced Multi-Function Array Radar (AMFAR) by APL in the late 1960's represented a new dimension in radar system technology. AMFAR demonstrated the feasibility of automatic detection and tracking with resistance to environmental clutter through computer control. The development of automatic detection and tracking capability in AMFAR eliminated the inherent delays, errors, an...
[1] The generation of a posteriori distribution of a statistic of propagation loss conditioned on observed radar sea clutter is described. The statistic u is the 20th percentile level of the two-way propagation loss at a 5-m height over the 10–60 km range interval. A discrete implementation of the Bayesian paradigm is employed. The forward mapping from the space of environmental parameters into...
Stationary target detection in through-the-wall radar imaging (TWRI) using image segmentation techniques has recently been considered in the literature. Specifically, histogram thresholding methods have been used to aid in removing the clutter, resulting in ‘clean’ radar images with target regions only. In this paper, we show that histogram thresholding schemes are effective only against clutte...
An airborne radar echo signal includes signals returned from clutter and a target; thus, simulating the may be crucial for predicting analyzing accurate performance. Because it can extremely difficult expensive to obtain real measured data various scenarios, an generation method is required. Existing weather ground simulators X-band are combined simulate when two clutters exist simultaneously. ...
For an automotive pedestrian detection radar system, fast-ramp based 2D range-Doppler Frequency Modulated Continuous Wave (FMCW) radar is effective for distinguishing between moving targets and unwanted clutter. However, when a weak moving target such as a pedestrian exists together with strong clutter, the pedestrian may be masked by the side-lobe of the clutter even though they are notably se...
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