نتایج جستجو برای: radar transmitter

تعداد نتایج: 55304  

2006
S. D. Howard A. R. Calderbank W. Moran

There are many proposals for multi-channel radar, emanating from the conventional monostatic radar system where transmitter and receiver are collocated. Collocation makes it easy for transmitter and receiver to share a common stable clock (local oscillator), which is required for both range and Doppler measurements. Signal processing for multi-static radars (see [1]) with widely dispersed anten...

2008
Benson Chan

The Radar Remote Sensing Group in University of Cape Town has developed accurate modelling method that uses 3D maps of the Western Cape to predict the signal path loss between a transmitter, aircraft and a receiver in the Passive Coherent Location (PCL) system. The core objective of this thesis is to investigate the use of this modelling method to optimise the location of receivers in order to ...

2000
M. Roßberg J. Sachs P. Rauschenbach P. Peyerl K. Pressel W. Winkler D. Knoll

Transmitter and receiver circuits operating at 11 GHz system clock rate are described. These circuits, fabricated in a 0.8 μm SiGe-HBT technology, are the key elements of a radar head using a new ultra wideband principle.

2012
Pietro Stinco Maria Greco Fulvio Gini Alfonso Farina

This work deals with the analysis of a multisensor radar system in the context of maritime border control scenario. The system is composed by a receiver that exploits the signal emitted by two non co-operative transmitters of opportunity: a UMTS base station and a FM radio station. An algorithm for selecting the transmitter for the tracking of a radar target is proposed. This algorithm can prov...

2002
Fabian D. Lapierre Marc Van Droogenbroeck Jacques G. Verly

Detection of slow moving targets using a moving pulsed Doppler radar system has been a problem of great interest for quite some time [1]. One distinguishes between monostatic (MS) configurations, where the radar transmitter and receiver are colocated and bistatic (BS) configurations, where they are physically separated and have separated motions. In either case, a train of coherent pulses is tr...

2006
Margaret Cheney Birsen Yazıcı

In this paper we present an analytic filtered-backpropagation inversion method for radar imaging when the transmitters and receivers are moving along independent flight paths. The flight paths are arbitrary, but assumed known. We assume a singlescattering model for the radar data, and we assume that the ground topography is known. We assume, in addition, that the receiver can correctly associat...

2012
Ami Munshi Srija Unnikrishnan

In this paper, we have implemented Radar Transmitter-Receiver. Direct Sequence Spread Spectrum BPSK is chosen as modulation method because of its numerous advantages like accuracy of ranging, sensitivity, targetseparation, accuracy of power-estimation, interference suppression, etc. We have employed this scheme using MATLAB Simulink which is a software package for modelling, simulating, and ana...

1999
DAVID BRUNKOW V. N. BRINGI PATRICK C. KENNEDY STEVEN A. RUTLEDGE V. CHANDRASEKAR ROBERT K. BOWIE

The subject of this paper is the Colorado State University–University of Chicago–Illinois State Water Survey (CSU–CHILL) National Radar Facility’s S-band polarimetric research radar. Key features of this system include polarization agility (provided by the dual-transmitter, dual-receiver design), a recently updated signal processor, and a low (234 dB, two way) integrated cross-polar ratio (ICPR...

2016
Young Joon Yoo Changhyun Yi Ji Sub Hwang Young Ju Kim Sang Yoon Park Ki Won Kim Joo Yull Rhee YoungPak Lee

We realized the tunable metamaterial hyper-transmitter in the microwave range utilizing simple planar meta-structure. The single-layer metamaterial hyper-transmitter shows that the transmission peak occurs at 14 GHz. In case of the dual-layer one, it is possible to control the transmission peak from 5 to 10 GHz. Moreover, all the transmission peaks reveal transmission over 100%. We experimental...

Journal: :JNW 2010
Bin Wang Jinkuan Wang Xin Song Yinghua Han

Cognitve radar can be aware of its environment, utilize intelligent signal processing, provide feedback from the receiver to the transmitter for adaptive illumination and preserve the information contents of radar returns. In this paper, based on the analysis of the parameters of radar mesurements, range-Doppler resolution cell is built up, then stochastic dynamic programming model of waveform ...

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