time-frequency phase-space
Speech Source Separation in Convolutive Environments Using Space-Time-Frequency Analysis
... each frequency, and are determined through a selection and clustering process that creates disjoint sets of eigenvector candidates for every frequency at multiple ...and phase estimates along di ff ...
11
Space Vector Taylor-Fourier Models for Synchrophasor, Frequency, and ROCOF Measurements in Three-Phase Systems
... the phase signals as in the previous ...Furthermore, frequency and ROCOF of a three-phase quantity are typically obtained starting from the time evolution of the phase angle of the ...
15
Application of the cross wavelet transform and wavelet coherence to geophysical time series
... analyzing time series, often using popular free ...two time series ...in time frequency space be- tween two time ...how phase angle statistics can be used to gain ...
6
Analysis of Space Time Frequency Coding in of dm Systems for Future Wireless Communications
... a phase shift keying module further complex symbols are encoded through a space time (ST) block code (STBC) encoder and transmitted during T symbol durations according to the chosen ST ...
5
Space Vector Taylor–Fourier Models for Synchrophasor, Frequency, and ROCOF Measurements in Three-Phase Systems
... synchrophasor, frequency and rate of change of frequency ...during time-varying ...single- phase signals; on the contrary, this peculiarity can be favorably exploited to improve accuracy and ...
10
Analysis of cardiac signals using spatial filling index and time-frequency domain
... a phase space and the time-frequency analysis of these cardiac signals using spatial filling index and Renyi's entropy has been pro- posed for detecting cardiac ...
11
A blind bandwidth extension method for audio signals based on phase space reconstruction
... high-efficiency advanced audio coding (HE-AAC) [4,5], which has been applied in mobile multimedia players, mobile phones, and digital radio services. In addition, the non-blind BWE methods used in extended adaptive ...
9
Phase Space Reconstruction using the frequency domain
... can only see a limited part of the whole time series whereas an IIR filter can see the whole series. For reconstruction this difference becomes important because it generates in the case of IIR-filters some ...
109
The Epoch of Reionization: Foregrounds and Calibration With Paper
... current time the space between galaxies is almost completely ionized, therefor we know that the universe must have undergone a global phase ...low frequency radio ...
105
Broadband MC DS CDMA Using Space Time and Frequency Domain Spreading
... using space-time spreading (STS) assisted transmit diversity and frequency-domain (F-domain) spreading is investigated in the context of broadband communications over frequency-selective ...
5
Symmetries in Evolving Space Time and Their Connection to High Frequency Gravitational Wave Production
... Λ ≈ ⋅ (6) If we look at the range of allowed upper bounds for the cosmological constant, there exists a difference in values between what Park (2003) [7] predicts—an almost infinite value—to a much lower value given by ...
12
Time-Frequency Analysis Using Warped-Based High-Order Phase Modeling
... The high-order ambiguity function (HAF) was introduced for the estimation of polynomial-phase signals (PPS) embedded in noise. Since the HAF is a nonlinear operator, it suffers from noise-masking effects and from ...
18
Spectroscopic monitoring of the Herbig Ae star HD 104237
... different time scales and wavelength ...on time scales of weeks to years; clumpy accretion (Pérez et ...with time scales from hours to ...on time scales of from hours to days (Catala et ...
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Performance analysis for STFC and STFC-MD in OFDM for wireless communication
... Orthogonal Frequency Division Multiplexing (OFDM) in strongly recurrence particular diverts in-types of coded frame error rate ...in space time frequency (STF) due to which efficiency of ...
5
A Study on Space Time Block Code and Space Frequency Block Code with MIMO-OFDM in Wireless Communication Systems
... OFDM (Orthogonal frequency division multiplexing) is the dominant air interface standard for wireless communication system. Now a day, the demand of high data rate with high efficiency is very difficult to ...
6
A Krylov Space Based Finite Element Time Domain Method for Broadband Frequency Domain Solutions
... with the proposed time domain-based broadband frequency domain algorithm, as shown in Figure 4. However, it is also noted that the solution may diverge due to the fact that the eigenvalues approximated by ...
10
Adaptive Switching between Space Time and Space Frequency Block Coded OFDM Systems in Rayleigh Fading Channel
... Orthogonal Frequency Division Multiplexing (OFDM) has gained significant interest and is considered as one of the most promising techniques for present and future wireless communication systems ...and ...
8
Effective Needs of Space-Time-Frequency Coding in MIMO-OFDM Communication over Frequency Selective Fading Channels
... Additionally, issues relating to boosting the coding increase of ST-coded transmissions over recurrence particular channels presently can't seem to be tended to. Concentrating on multiantenna orthogonal recurrence ...
6
Fast Lock-in Time Phase Locked Loop Frequency Synthesizer for Continuous-Time Sigma-Delta ADC
... 640-MHz frequency needed for continuous-time sigma-delta ADC since this frequency is beyond the range of frequencies covered by crystal oscillator ...higher frequency range to sustain ...
5
Phase Aware Job Scheduling for MapReduce in Hadoop
... execution time. PRISM-a fine grained phase and resource aware scheduler was introduced which mainly focuses on designing task level ...The phase based resource aware scheduler offers high resource ...
5