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frequency spectrum

Optimization of Frequency Spectrum through Beam Replication

Optimization of Frequency Spectrum through Beam Replication

... and frequency is used in cell ...different frequency based on frequency ...of frequency spectrum. Methods like spectrum sensing, spectrum decision, spectrum ...

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The Site Frequency Spectrum for General Coalescents

The Site Frequency Spectrum for General Coalescents

... ABSTRACT General genealogical processes such as L- and J-coalescents, which respectively model multiple and simultaneous mergers, have important applications in studying marine species, strong positive selection, ...

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Geometry of the Sample Frequency Spectrum and the Perils of Demographic Inference

Geometry of the Sample Frequency Spectrum and the Perils of Demographic Inference

... sample frequency spectrum (SFS), which describes the distribution of mutant alleles in a sample of DNA sequences, is a widely used summary statistic in population ...

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Learning Natural Selection from the Site Frequency Spectrum

Learning Natural Selection from the Site Frequency Spectrum

... ABSTRACT Genetic adaptation to external stimuli occurs through the combined action of mutation and selection. A central problem in genetics is to identify loci responsive to specific selective constraints. Many tests have ...

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Directional Selection and the Site-Frequency Spectrum

Directional Selection and the Site-Frequency Spectrum

... the frequency q of the the number of individuals in the sample that carry the mutation in the population, the probability of sampling derived form of the ...site-frequency spectrum as the ally ...

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Enhanced compressive wideband frequency spectrum sensing for dynamic spectrum access

Enhanced compressive wideband frequency spectrum sensing for dynamic spectrum access

... where r EVLBS k , r VLBS k , and r BPDN k represent values of esti- mated frequency spectrum vectors in the kth subband via EVLBS-CWSS, VLBS-CWSS, and BPDN-CWSS, respec- tively. These performance functions ...

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Utilization Methods of Frequency Spectrum and It’s Dynamic Allocation

Utilization Methods of Frequency Spectrum and It’s Dynamic Allocation

... It is the signal detection mechanism where it uses energy detector to specify the presence or absence of the signal in the band, this energy detector can implemented in time or frequency domain either by using ...

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The hitchhiking effect on the site frequency spectrum of DNA polymorphisms.

The hitchhiking effect on the site frequency spectrum of DNA polymorphisms.

... The results presented here demonstrate that under the simple hitchhiking model (1) the expected value of Tajima’s D is large and negative (indicating a skew toward rare var[r] ...

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Population genetic analysis of ascertained SNP data

Population genetic analysis of ascertained SNP data

... the frequency spectrum for a simulated ...the frequency spectrum. Correcting the frequency spectrum, however, is, in many cases, not the optimum method for correcting popu- ...

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RSA  Key  Extraction  via  Low-Bandwidth  Acoustic  Cryptanalysis

RSA Key Extraction via Low-Bandwidth Acoustic Cryptanalysis

... acoustic frequency spectrum. Moreover, the spectrum is often key-dependent, so that secret keys can be distinguished by the sound made when they are ...

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MATLAB IMPLEMENTATION OF SPECTRUM SENSING METHODS IN COGNITIVE RADIO

MATLAB IMPLEMENTATION OF SPECTRUM SENSING METHODS IN COGNITIVE RADIO

... on spectrum sensing in Cognitive Radio which is a recently introduced ...the spectrum efficiency in cognitive ...the spectrum usage is a need of an intrinsic result of rapidly increasing wireless ...

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Condition Monitoring of Gear Box by Using Motor Current Signature Analysis

Condition Monitoring of Gear Box by Using Motor Current Signature Analysis

... GEARS are used to transmit motion from one shaft to another or between the shafts. In most systems, the gear forms a part of the mechanical load that is coupled to an electrical device, which usually is an electric ...

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Spectrum Analysis in FM Band Using Cognitive Radio Testbench

Spectrum Analysis in FM Band Using Cognitive Radio Testbench

... This frequency allocation process makes a frequency band distribution plan, which for technical reasons assigns empty space between used radio bands or channels to avoid ...radio spectrum which is ...

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Analysis of plasmaspheric hiss wave amplitudes inferred from low-altitude POES electron data: Technique sensitivity analysis

Analysis of plasmaspheric hiss wave amplitudes inferred from low-altitude POES electron data: Technique sensitivity analysis

... density, frequency spectrum, or electron energy spectrum available, which in this paper we took from Van Allen Probes ...wave frequency spectrum based on EMFISIS data is an accurate ...

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Analysis of scanned channel estimation in 2.4 GHz ISM Band

Analysis of scanned channel estimation in 2.4 GHz ISM Band

... of frequency spectrum is ...and frequency appropriately and to manage the communication without interferences in ...existing spectrum in ...a frequency band and this frequency ...

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The Comparison and Study of WVD, PWVD, SPWVD Time Frequency Analysis Technologies Based on Observed Dynamic EEG Data

The Comparison and Study of WVD, PWVD, SPWVD Time Frequency Analysis Technologies Based on Observed Dynamic EEG Data

... EEG frequency spectrum characteristic with time, so it is tried to make data treatment with the help of analysis tool of ...and frequency spectrum change ...

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Extraction and Analysis of Steady State Somatosensory Evoked Potentials in Lower Limbs

Extraction and Analysis of Steady State Somatosensory Evoked Potentials in Lower Limbs

... stimulation frequency of the subject, the spectrum is analyzed by Fast Fourier Transform (FFT), which is a fast algorithm of Discrete Fourier ...Time-frequency spectrum is a method to directly ...

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Spatial filtering of a projection printer, using partially coherent light

Spatial filtering of a projection printer, using partially coherent light

... 5 at frequency spectrum with finite Transform transform located figure dashed filter spectrum, filter in frequency a shown point produce axis vertical a c Source Fourier the source of af[r] ...

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Assessment   of Seismic Resistance of a Ventilation Stack of a Reactor Building

Assessment of Seismic Resistance of a Ventilation Stack of a Reactor Building

... Stack structures are sensitive to seismic loads, as a rule, as their tuning (the spectrum of the lowest natural frequencies) corresponds with the frequency spectrum [r] ...

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The Application of PXI VSA in Radar Testing System

The Application of PXI VSA in Radar Testing System

... the frequency spectrum characteristics of the pulse repetition frequency (PRF) for the interval of the discrete spectrum, the spectral curve shape sin(x)/x, as shown in ...carrier ...

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