Advanced ultrawideband radar: signals, targets, and - download pdf or read online

By James D. Taylor

ISBN-10: 1466586575

ISBN-13: 9781466586574

This booklet provides the most recent idea, advancements, and purposes on the topic of excessive solution materials-penetrating sensor platforms. a global staff of professional researchers explains the issues and recommendations for constructing new suggestions and purposes. topic parts comprise ultrawideband (UWB) indications propagation and scattering, materials-penetrating radar options for small item detection and imaging, biolocation utilizing holographic innovations, tomography, scientific functions, nondestructive trying out equipment, digital conflict ideas, through-the-wall radar propagation results, and aim identity via measuring the objective go back sign spectrum changes.

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Extra info for Advanced ultrawideband radar: signals, targets, and applications

Sample text

Therefore a large power output and a wide receiver dynamic range will give the capability for deeper sounding, higher resolution, higher detection probability, and lower false alarm probability for detecting certain objects. GPR radar design requirements: Astanin and other researchers showed how the shape of reflected UWB signals carries information about the reflector’s electrical and geometric properties [2]. In this regard, the GPR designer must ensure the collection of undistorted radar data and proper processing of multiple signal returns.

For example, the CARABAS airborne radar system used very highfrequency stepped frequency signals to get high quality UWB synthetic aperture radar images [3,33]. In the case of long-duration UWB signals needed for long-range applications such as the HUSIR, the receiver uses a process called correlation that compares the received signal with the transmitted signal. The UWB literature uses the terms autocorrelation, cross correlation, or matched filtering for this process [31,32]. 2 Radar Bandwidth and Range Resolution Pulse radar theory shows how the minimum spatial resolution depends on the signal pulse duration τ and the speed of light c in the particular medium.

The GPR receiver collects signals for further analysis as the radiatorobservation point moves along the surface. 4) [20]. Mathematical background removal can mitigate the influence of the powerful direct coupling signal. This operation can remove the background as an average signal, remove the signal trend [21], or remove one of the signals recorded in the radar data set. Each of these cases forms the data set for subtracting, by averaging over either the set or a selected signal. The averaging process assumes the absence of reflections from the scattering objects, but includes the directly coupled signal.

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Advanced ultrawideband radar: signals, targets, and applications by James D. Taylor

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