Results 171 to 180 of about 30,133 (218)

CW radar for monitoring water-to-cellular concrete

2014 11th European Radar Conference, 2014
The physical deterioration of concrete structures is mainly caused by their moisture content. Consequently, methods dedicated to contactless, non-destructive and real-time monitoring of moisture content levels are required to control the deterioration of buildings.
Haddadi, Kamel, Lasri, Tuami
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35 GHz FM-CW radar modules

Fourth International Kharkov Symposium 'Physics and Engineering of Millimeter and Sub-Millimeter Waves'. Symposium Proceedings (Cat. No.01EX429), 2002
At IRCTR, a collision avoidance radar demonstrator (Colarado) for autonomous vehicles is under development. The radar task is to avoid collisions by detecting the presence of obstacles and by determining the obstacle positions and velocities in the near range of the radar. In the years 1996-1999, an X-band (centre frequency 9.75 GHz, bandwidth 1.5 GHz)
L.P. Ligthart, U. Akpinar, P.J.F. Swart, A. John, R.H. Jansen   +4 more
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Coherent FM-CW millimeter-wave radar systems for radar cross-section measurements

6th IEEE Conference Record., Instrumentation and Measurement Technology Conference, 1990
Coherent instrumentation radars have been developed at 35 and 94 GHz for use in radar cross section measurements at angles of incidence ranging from 0 degrees to 60 degrees . The systems are designed to measure the radar cross section of various targets, at like and cross-polarizations, in an effort to better understand their scattering characteristics.
R.T. Lawner, P.F. Blanchard, S.P. Gogineni   +2 more
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A 90 GHz FM-CW-RADAR Transmitter

MTT-S International Microwave Symposium Digest, 2005
The design and the performance of an FM-CW-RADAR transmitter for 90 GHz set up synchronized and powercombined IMPATT-oscillators are presented in this paper. The synchronising source consists of a 45 GHz-Gunn-oscillator which is simultaneously swept and doubled by the same varactor.
H. Barth, M. Bischoff
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Clutter map for a CW surveillance radar

2012 13th International Radar Symposium, 2012
A Radar target detection procedure for a surveillance Ku-band radar is considered in this paper. The radar system applies a Frequency Modulated Continuous Wave (FMCW) transmit signal with very short chirp duration. The specific waveform has been selected to measure with high resolution target range and radial velocity simultaneously and unambiguously ...
Matthias Kronauge, Hermann Rohling
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Two-tone CW complex holographic radar imaging

Proceedings of IEEE Antennas and Propagation Society International Symposium, 2002
A method that resolves range using the phase differences between reconstructed two-tone holograms is presented. This method gives very high range resolution in a very narrow frequency band. Experiments showed that the technique can produce recognizable 3-D images of objects at comparatively short distances in free space. >
H. Kitayoshi, B. Rossiter, Y. Yoshino, K. Katoh, M. Hirose   +4 more
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Commercial CW Doppler radar design and application

2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA), 2017
In this paper CW Doppler radar design and application are presented. The impact of a wide antenna main lobe on the received signal is demonstrated, based on the developed received signal model. Then a design of an active antialiasing filter and a signal processing technique using an OS-CFAR algorithm are describe.
Michal Reznicek, Pavel Bezousek
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Pseudorandom Code Waveform Design for CW Radar

IEEE Transactions on Aerospace and Electronic Systems, 1979
Certain surveillance radar applications require that the transmitted signal be continuous wave (CW) and wide bandwidth to meet range and range-rate resolution, and also performance requirements in clutter, multiple targets, or other interfering environments. Although an unmodulated CW radar is well suited for making range-rate (Doppler) measurements, a
Damian Albanese, Albert Klein
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Appendix A: CW Radar Range Equations

2013
The program 'cw.cpp' calculates the range/power levels of FMCW and phase-coded CW radars given either of the parameters. It outputs the range in kilometers or the average power in watts. It is intended as a tool for quick performance evaluation of CW radars.
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Microwave oscillator requirements for CW radar

Transactions of the IRE Professional Group on Electron Devices, 1954
A brief discussion of several types of CW radar will be given. Emphasis will be directed toward the function of the tube in each of the various radar systems. A detailed discussion of the requirements placed on the CW oscillator for each of the radar systems will be made. Tube characteristics which limit radar performance will be discussed.
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