Results 271 to 280 of about 879,921 (312)
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International Journal of Modern Physics C, 2012
We apply the mathematics of cognitive radio to a single receiver to obtain a new coherent energy metric. This allows us to derive the time correlation law separating Gaussian colored noise from coherent signal energy.
P. D. MORLEY, JERRY W. BROWN
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We apply the mathematics of cognitive radio to a single receiver to obtain a new coherent energy metric. This allows us to derive the time correlation law separating Gaussian colored noise from coherent signal energy.
P. D. MORLEY, JERRY W. BROWN
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Simultaneous transmission, detection, and energy harvesting
Optics Letters, 2021Due to the electro-optic property of InGaN multiple quantum wells, a III-nitride diode can provide light transmission, photo detection, and energy harvesting under different bias conditions. Made of III-nitride diodes arrayed in a single chip, the combination allows the diodes to transmit, detect, and harvest visible light at the same time.
Xumin Gao +8 more
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Energy-Detection Model for Monaural Auditory Detection
The Journal of the Acoustical Society of America, 1962In the auditory detection of a sinusoidal signal in the presence of random noise, it has previously been demonstrated that the presence of a “pedestal” or background sinusoid of the same frequency and phase as the signal increases detectability. This increase was confirmed in a two-interval forced choice experiment in which a 1000-cps sinusoid was ...
Sheila M. Pfafflin, M. V. Mathews
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A framework for detecting energy bugs in smartphones
2015 6th International Conference on the Network of the Future (NOF), 2015The proliferation of smartphones is retarded by energy inefficient applications and energy bugs. These energy bugs severely impact the user experience and cause significant user frustrations. To detect energy bugs, we need to characterize the power consumption behaviour of software.
Abdul Muqtadir Abbasi +6 more
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An Energy Detection Model for Monaural Auditory Detection
The Journal of the Acoustical Society of America, 1961In the presence auditory detection of a sinusoidal signal in the presence of random noise, it has previously been demonstrated that the presence of a “pedestal” or background sinusoidal of the same frequency and phase as the signal increases detectability.
S. M. Pfafflin, M. V. Mathews
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SNR enhancement method for energy detection
2012 International Conference on ICT Convergence (ICTC), 2012The proposed method is intended to improve the performance of the classical energy detector. The method preserves the characteristic advantages of the energy detector while simultaneously achieves SNR gain and variance reduction. We utilize the Welch method as the basic platform of analysis, derive performance function, and perform computer simulations
Jae-Young Chun, Sang-Sik Ahn
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Subjectivity Detection in Nuclear Energy Tweets
Computación y Sistemas, 2018The subjectivity detection is an important binary classification task that aims at distinguishing natural language texts as opinionated (positive or negative) and non-opinionated (neutral). In this paper, we develop and apply recent subjectivity detection techniques to determine subjective and objective tweets towards the hot topic of nuclear energy ...
Ranjan Satapathy +4 more
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Robust energy detection for cognitive radio
2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication (PIMRC), 2014Spectrum sensing is the fundamental technology in cognitive radio to learn the radio environment. Energy detection is one of the simplest method for spectrum sensing and has the best performance in theory for signals without special features. However, it is well-known that energy detection is vulnerable to noise uncertainty.
Yonghong Zeng, Meng Wah Chia
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Energy-Detection Model for Monaural Auditory Detection
The Journal of the Acoustical Society of America, 1963An alternative model to the energy detector described in a previous paper is presented. The advantage of this new model is that the effect of varying the amplitude and phase of the pedestal may be deduced directly from the block diagram.
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Energy detection of a signal with random amplitude
2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333), 2003Urkowitz (1967) has discussed the detection of a deterministic signal of unknown structure in the presence of band-limited Gaussian noise. That analysis is developed to the case of a signal with random (Rayleigh, Rice, Nakagami, and other) amplitude.
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