Results 251 to 260 of about 1,945,969 (313)
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Target discrimination technique utilizing noise waveforms
SPIE Proceedings, 2011Noise waveforms generated using low cost diodes are a simple way for radars to transmit a wideband (> 4 GHz) multi-bit pseudorandom code for use in a cross correlation receiver. This type of waveform also has the advantage of being difficult to intercept and is less prone to interfere with adjacent systems.
Gordon Woodington +5 more
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Through wall radar imaging using UWB noise waveforms
2008 IEEE International Conference on Acoustics, Speech and Signal Processing, 2008zbMATH Open Web Interface contents unavailable due to conflicting licenses.
R. Narayanan
semanticscholar +3 more sources
Noise waveforms with repetitive phase and nonrepetitive amplitude
Optics Letters, 2002By use of frequency-shifted feedback lasers, noise with a stationary amplitude and a periodically stationary phase is generated. The ensemble-averaged time correlation function is periodic, whereas the power spectrum is broadband, resulting in a waveform that does not obey the Wiener-Khintchine relations.
Frank V, Kowalski +3 more
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Radar design using chaotic and noise waveforms
2006 International Waveform Diversity & Design Conference, 2006Theoretical and experimental evaluations of potential capabilities of Noise Radar Technology (NRT) in design and development of radar sensors are presented. Derivation of Ambiguity Function for Pulsed Noise Waveform is given. Theoretical basis for Noise Radar design and three different methods for coherent processing of Noise Radar returns are briefly ...
K. Lukin
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Radar Design Using Noise/Random Waveforms
2006 International Radar Symposium, 2006Theoretical and experimental evaluations of potential capabilities of Noise Radar Technology (NRT) in design and development of radar sensors are presented. Derivation of Ambiguity Function for Pulsed Noise Waveform is given. Theoretical basis for Noise Radar design and three different methods for coherent processing of Noise Radar returns are briefly ...
K. Lukin
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Parameter Estimation for Waveforms in Additive Gaussian Noise
Journal of the Society for Industrial and Applied Mathematics, 1959A stochastic process \(z(t)\) is observed over a given interval of time, where \(z(t) = x(t) + F(t,\xi)\), \(\xi\) is an unknown parameter, \(F(t,\xi)\) a real-valued function of time \(t\) and \(x(t)\) is a Gaussian process with known covariance function \(\psi_x(s, t)\). Estimates of a parameter \(f(\xi)\) are considered.
P. Swerling
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Random Noise Radar/Sodar With Ultrawideband Waveforms
IEEE Transactions on Geoscience and Remote Sensing, 2007Random noise waveforms with ultrawide bandwidth improve the range resolution and reduces the probability of intercept in radar/sodar. As a result of the nonperiodic waveform, the range ambiguity is removed as well. By transmitting a sine signal that is phase or frequency modulated by random noise, autocorrelation functions with improved side lobe ...
S. Axelsson
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Design and Generation of Stochastically Defined, Pulsed FM Noise Waveforms
2019 International Radar Conference (RADAR), 2019The design and physical generation of diverse radar emissions often requires optimization of unique waveforms on an individual basis. Consequently, a significant processing overhead is incurred that could make real-time implementation impractical.
Charles A. Mohr, S. Blunt
semanticscholar +1 more source
FM Noise Waveforms Optimized According to a Temporal Template Error (TTE) Metric
International Radar Conference, 2019It has recently been shown that a form of pulse agility involving FM noise waveforms provides tremendous flexibility and design freedom to realize physical emissions for multiple different radar applications. The design of such waveforms tends to involve
Charles A. Mohr, S. Blunt
semanticscholar +1 more source

