nyquist rate
Adaptive Digital Channelization of Sparse Wideband Analog Signals at Sub Nyquist Rate
... (2) The L 0 ( f N f s ) / 2 f p 1 , f [ f s / 2, f s / 2] and f N is the Nyquist rate of x t ( ) . It can be seen clearly that the spectrum after sampling becomes a linear combination ...
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Cognitive Radio wideband spectrum sensing using Sub Nyquist sampling
... The received analog signal from the Cognitive Radio has to be sampled and then has to be sensed to detect for the active and vacant channels. The received analog signal is sampled by multi-coset sampler at a sampling ...
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Multicoset Sampling Approach in Cognitive Radio for Spectrum Sensing
... Multicoset sampling starts by dividing the entire frequency band into L narrowband cells, each of them with bandwidth b, such that = × [6] − [7]. These cells are indexed from 0 to L-1 ,see Figure 1. Active cells are the ...
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Assessment of sub-Nyquist deterministic and random data sampling techniques for operational modal analysis
... average rate compared to a concurrently operating network of conventional wireless sensors sampling uniformly in time at twice the assumed Nyquist ...
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Sub Nyquist sampling and detection in Costas coded pulse compression radars
... sub-Nyquist rate based upon the concept of compressive sensing (CS). Sub-Nyquist measurements of Costas sequence waveform are performed in an analog-to-information (A/I) converter based upon random ...
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Design of application specific high bandwidth Nyquist DAC
... several Nyquist-rate DACs are ...These Nyquist-rate DACs are compared in respects of the achievable resolution with different component matching, speed limitation and power ...
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Multi-channel sub-Nyquist cross-Spectral Estimation for Modal Analysis of Vibrating Structures
... Table I reports the percentage error between the estimated and the exact natural frequencies for the first 4 mode shapes. The case of natural frequency estimation from measurements sampled at the Nyquist ...
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Sensing of Wideband Spectrum Channels by Sub Sampling Rate Subspace Estimator
... sampling rate required to guarantee perfect reconstruction should be ...the rate constraint, the WKS theorem allows perfect blind-reconstruction for every signal x(t) bandlimited to F from its uniform ...
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Sub-Nyquist signal-reconstruction-free operational modal analysis and damage detection in the presence of noise
... the Nyquist rate. Specifically, non-uniform deterministic sub-Nyquist multi-coset sampling of response acceleration signals in white noise excited linear structures is considered in conjunction with ...
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Assessment of sub-Nyquist deterministic and random data sampling techniques for operational modal analysis
... average rate below the Nyquist ...sampling rate depends strongly on the sparsity (or compressibility) of the acceleration signals in the frequency ...
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Spectral reconstruction of signals from periodic nonuniform subsampling based on a Nyquist folding scheme
... It is assumed that NYFR covers ten Nyquist zones, then the coverage of NYFR spectrum surveillance is from −5GHz to 5GHz. The spectrum of the LFM signal and its OMP reconstruction is shown in Fig. 5. We can see ...
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SURVEY ON VARIOUS NOISES AND TECHNIQUES FOR DENOISING THE COLOR IMAGE
... The standard model of this noise is additive, independent at each pixel and independent of the signal intensity, caused primarily by Johnson–Nyquist noise (thermal noise), including that which comes from the reset ...
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Dynamic Resolution in GPU-Accelerated Volume Rendering to Autostereoscopic Multiview Lenticular Displays
... the Nyquist frequency of the 1/3 orthogonal grid is ...complete Nyquist frequency range, slight aliasing in the higher frequencies might ...the Nyquist frequency range (blue) is contained within the ...
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Better Corrosion Management in Sodium Chloride Solution of Some Pieces Obtained from Metallurgical Iron Powder Ancorsteel 1000B Using Cadmium and Zinc Coatings to Protect Underlying Substrate
... of Nyquist spectrum [28, 29], but a retardation effects on zinc coating loop is observed, indicating that this is primordially dissolved in relation with its underlying substrate ...
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Symbol Recovery Circuit design for deep-space MARS receiver using SOI technology
... Unlike the other PLLs discussed the ADPLL is made up completely of digital parts. Not only are the blocks digital, even the signals involved in the ADPLL are digital. The ADPLL doesn’t suffer from the issues of analog ...
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Use of Prosopis Laevigata as a Corrosion Inhibitor for Al in H2SO4
... It was found that the corrosion rates of Al in both uninhibited and inhibited solutions increase as the temperature was increased. However, the extent of the rate increment in the inhibited solution was higher in ...
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Electrochemical Behavior of API X80 Steel in Acidic Soils from Southeast China
... The <2 μm clay fraction were separated from the bulk soil by gravity settling in water under slightly alkaline conditions. The mineralogical composition (as opposed to elemental composition) of the clay fraction ...
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Stability assessment of power converter based AC systems by LTP theory: eigenvalue analysis and Harmonic Impedance estimation
... the Fourier series are zero. The Toeplitz transform is applied and the HSS model is calculated. Below, in section VI, the stability of the system is assessed based on the average model (20), comparing time-domain ...
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A parameter estimation algorithm for LFM/BPSK hybrid modulated signal intercepted by Nyquist folding receiver
... NYFR, Nyquist folding receiver; NZ, Nyquist zone; RF, Radio frequency; SFM, Sinusoidal frequency modulation; SNYFR, Synchronous NYFR; SVD, Singular value decomposition; ZAM, Zhao, Atlas, and Marks; ZCR, ...
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Design of Optimized Decimator for Distortion Removal in Wireless Communication & Calculation of Cost Function
... Equiripple based decimator has been designed and analyzed using Mat-Lab [6] for single stage, two stages and multi stages with Nyquist and standard techniques. It can be seen from the results of Fig4 that proposed ...
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