نتایج جستجو برای: radar detection

تعداد نتایج: 597756  

Journal: :رادار 0
معین احمدی کمال محامدپور محمد علایی محمدعلی سبط

in this paper, the detection of moving targets in airborne widely separated phased multiple input multiple output (mimo) radars which are located on moving platform is investigated. in order to derive the detector, the generalized likelihood ratio test is applied. the proposed detection rule, exploits the clutter subspace information and its maximum likelihood estimation, to improve the detecti...

Journal: :EURASIP J. Wireless Comm. and Networking 2013
Baoju Zhang Wei Wang

The technology for through-wall human detection with ultra-wideband (UWB) radar was discussed. Due to the large amount of UWB radar data, compressive sensing theory was introduced and compressed UWB radar data can be collected. The singular value decomposition algorithm was used to acquire the singular values of compressed radar data. The compressed UWB radar data were collected at two statuses...

2015
Motoyuki Sato Hai Liu Christian Koyama Kazunori Takahashi

GB-SAR (Ground Based Synthetic Aperture Radar) for inspection of wooden and concrete walls and structures has been developed and the system was evaluated by test measurements. The GB-SAR system uses frequency bandwidth 1-10GHz, and it can acquire full polarimetric radar signal. Then Synthetic Aperture (SAR) Radar signal processing is used to reconstruct 3-dimenatioal images of inner structure o...

2004
N. Brosch

We present joint optical-radar observations of meteors collected near the peak of the Leonid activity in 2002. We show four examples of joint detections with a large, phased array L-band radar and with intensified video cameras. The general characteristic of the radar-detected optical meteors is that they show the radar detection below the termination of the optical meteor. Therefore, at least ...

Journal: :IEICE Transactions 2005
Kiyoshi Hamaguchi Hiroyo Ogawa Takehiko Kobayashi Ryuji Kohno

This paper introduces a state-of-art on an ultra-wideband (UWB) technology in intelligent transport systems (ITS). To examine the detection performance of a UWB short-range radar for vehicular applications, we developed a 26-GHz band short-range UWB radar system with an embedded compact MMIC-based RF module. In this paper, we briefly comment on the current regulatory environment for UWB radar s...

2012
Snehprabha Lad

The RADAR is the basic requirement of anti-collision system hence many type of RADAR has been already proposed according to its property and requirement of system .Anticollision system use RADAR detection to measure distance to obstacles and obstacles relative speed. Many RADAR antennas were developed but correlation radar is the most recent radar used in Anti-collision system. It’s a bad and e...

2012
Shingo Shimizu

Multiple Doppler radar analysis has been widely used to retrieve three-dimensional wind fields within thunderstorms and meso-scale convective systems (MCS) since the late 1960s. A number of countries have constructed dense operational radar networks, such as the Operational Programme for the Exchange of Weather Radar Information (OPERA; Köck et al., 2000), to monitor and forecast severe weather...

1999
Toshifumi MORIYAMA Masafumi NAKAMURA Yoshio YAMAGUCHI Hiroyoshi YAMADA

Manuscript received November 5, 1998. Manuscript revised January 8, 1999. † The authors are with Niigata University, Niigata-shi, 9502181 Japan. †† The author is with University of Illinois at Chicago, IL, 60607-7018, USA. * Presently, with Fujitsu System Integration Laboratories Ltd. ** Presently, with NEC Saitama Corp. SUMMARY This paper discusses the classification of targets buried in the u...

2006
R. Xu X. Zhao X. Li C. Kwan C. - I Chang

An image texture analysis and target recognition approach of using an improved image texture feature coding method (TFCM) and Support Vector Machine (SVM) for target detection is presented. With our proposed target detection framework, targets of interest can be detected accurately. Cascade-Sliding-Window technique was also developed for automated target localization. Application to mammogram s...

2003
M. Rosenkrantz

We present joint optical-radar observations of meteors collected near the peak of the leonid activity in 2002. We show four examples of joint detections with a large, phased array L-band radar and with intensified video cameras. The general characteristic of the radar-detected optical meteors is that they show the radar detection below the 5 termination of the optical meteor. Therefore, at leas...

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