Results 171 to 180 of about 3,039 (221)
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CW radar for monitoring water-to-cellular concrete
2014 11th European Radar Conference, 2014The 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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Clutter map for a CW surveillance radar
2012 13th International Radar Symposium, 2012A 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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Proceedings of ISSSTA'95 International Symposium on Spread Spectrum Techniques and Applications, 2002
The objective of the described CW radar resulted from the threat by anti-radiation-missiles. Instead of a scanning transmit beam with high gain an antenna with a broad illumination pattern is used. Therefore the radiation may be covered by a decoy transmitter all the time. The transmitted CW-signal is modulated by a polyphase code for range resolution.
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The objective of the described CW radar resulted from the threat by anti-radiation-missiles. Instead of a scanning transmit beam with high gain an antenna with a broad illumination pattern is used. Therefore the radiation may be covered by a decoy transmitter all the time. The transmitted CW-signal is modulated by a polyphase code for range resolution.
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Proceedings of the IEEE, 1972
Raven has analyzed the CW radar output assuming a low-level sinusoidal phase disturbance. The radar output is herein analyzed for arbitrary amplitude sinusoidal phase disturbance. Also, the output amplitude spectrum is shown to be related in a particularly simple way to the local oscillator amplitude spectrum.
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Raven has analyzed the CW radar output assuming a low-level sinusoidal phase disturbance. The radar output is herein analyzed for arbitrary amplitude sinusoidal phase disturbance. Also, the output amplitude spectrum is shown to be related in a particularly simple way to the local oscillator amplitude spectrum.
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A continuous-wave (CW) radar for gait analysis
Conference Record of Thirty-Fifth Asilomar Conference on Signals, Systems and Computers (Cat.No.01CH37256), 2001A fully coherent, continuous-wave (CW) radar operating near 10.5 GHz has been developed to record the radar signature corresponding to the walking human gait. The received signal is the sum of Doppler shifted signals reflected from the various parts of the moving body. Since the legs, arms, and torso all move at different relative velocities throughout
J.L. Geisheimer +2 more
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Analysis of target response of FM-CW radar
IEEE Transactions on Antennas and Propagation, 1986Detection and location of different targets buried in ground or constructional walls depends to a great extent on the knowledge of expected target return response. The analysis of the target-radar response for FM-CW ground probing radar is performed with the aid of a signal flow diagram relating the target response and the radar performance.
A. Botros, A. Olver
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A New Display for FM/CW Radars
IRE Transactions on Military Electronics, 1961One of the limitations of FM/CW radars, often quoted in the literature, is in their inability to handle multiple targets. Several variations of a comparatively simple Range/Range Rate Display, capable of handling and resolving a large number of targets when used in conjunction with an FM/CW radar, are presented.
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Microwave oscillator requirements for CW radar
Transactions of the IRE Professional Group on Electron Devices, 1954A 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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FM‐CW radar sensing of the lower atmosphere
Radio Science, 1980FM‐CW radars have revealed many unique marine boundary layer echoes in great detail and permit new interpretations when they are operated simultaneously with other remote sensors. Three different subject areas and associated observations are presented. First, an FM‐CW radar can provide information on tropospheric radio propagation conditions through a ...
V. R. Noonkester, J. H. Richter
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A 90 GHz FM-CW-RADAR Transmitter
MTT-S International Microwave Symposium Digest, 2005The 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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