state space frequency response time domain

... implementation, where initial frequency- domain interpolation using a specific transform matrix is followed by fractional time- domain interpolation and user-specific frequency translation Hereafter, ... where γ ∈ {2, 3}), a fractional time- domain interpolation, and a user-specific frequency shift The matrix multiplication z = Qx can be considered as the frequency- domain interpolation by the γ-factor ... the frequency domain Then, the resulting vector is multiplied element-wise by a length-K1 vector Φi , which can be obtained by the FFT of ri , and the result is transformed back to the time domain...

Ngày tải lên: 21/06/2014, 22:20

... Numerical Results of Parallel PMS-AIM Implementation 152 Time Domain Integral Equation 5.1 Time Domain Integral Equation Formulation 5.2 Far Field Scattering ... transform of the aggregate current array to the spectral -frequency domain and the number of inverse FFT transform of the spectral -frequency domain transient fields It is faster than the existing ... 5.16 Average time to compute Vscat per unit time step for the PEC plates l analysis 5.17 Average time to compute Vscat per unit time step for the PEC...

Ngày tải lên: 11/09/2015, 16:06

... crucial in time series analysis In the state equation, time dependencies in the observed time series are dealt with by letting the state at time t + be a function of the state at time t Therefore, ... Introduction This book introduces time series analysis using state space methodology to readers who are neither familiar with time series analysis nor with state space methods The only background ... state space modelling The important difference is that the intercept in a regression model is fixed whereas the level component in a state space model is allowed to change from time point to time...

Ngày tải lên: 10/06/2014, 21:34

... the relaxation time with respect to the field period was shown in Figure Conclusions In summary, we demonstrated the frequency response of g-Fe2O3 colloidal assembly induced by time- varied magnetic ... magnetic field Moreover, with the frequency increasing, the magnetic relaxation time of cluster is more and more Page of above the period of external field (The relaxation time is constant while the ... the field periods and the colloidal relaxation time If the relaxation time is above the period of field, the assembly can occur If the relaxation time is below the period of field, there is no...

Ngày tải lên: 21/06/2014, 02:20

... transport For example, time delays in regulation may stem from the time taken for the transport of a regulatory protein to its site of action Recently, state- space models with time delays have been ... use of state- space modelling with time- series microarray data can be found in the thesis of Koh [15] Methodology The tdGRN approach consists of three parts First, we implement a state- space model ... all The above state- space models [7–10] not take time delay in gene regulatory networks into consideration However, examination of microarray data reveals a considerable number of time delayed...

Ngày tải lên: 21/06/2014, 20:20

... will refer to the beamspace preprocessing approaches in [5, 6] as frequency- domain frequency- invariant beamspace (FD-FIBS) approach and time- domain frequency- invariant beamspace (TD-FIBS) approach, ... Section In Section 3, the frequency- domain and timedomain CMRBs are designed using SOCP approach In Section 4, the frequency- domain and time- domain processing methods for beamspace DOA estimation ... Broadband DOA estimation using CMRBs (a) Frequency- domain processing structure (b) Time- domain processing structure 4.2 Time- domain processing The time- domain processing structure for DOA estimation...

Ngày tải lên: 22/06/2014, 23:20

... the initial state is zero and hence is called the zero state response The zero state response is the response due to input only, and the zero input response is due to the initial states (initial ... initial states are zero Therefore the response y2 (n) is just the zero state response of the system, for the given input x(n) 2.4.1 Transient Response and Steady -State Response The total response ... input and zero state response It follows, therefore, that the natural response is not the same as the zero input response and the forced response is not the same as the zero state response Computation...

Ngày tải lên: 29/09/2013, 21:20

... [9,10] In this demonstration, we propose and demonstrate a RI measurement method using an optical time- domain reflectometer (OTDR)-based fiber sensor The proposed measuring scheme can detect the RI ... proposed OTDR-based fiber sensor under 10 time measurements using a 1,550 nm pulse laser with ns pulse-width, as shown in Figure And the average value of the 10 time measurements is about 35.0623 dB, ... dash line of Figure Figure Output BLS levels from the OTDR traces at 1,100 m SMF long under 10 time measurements when the water is used for sensing and the 1,550 nm pulse laser is setup at ns...

Ngày tải lên: 14/03/2014, 20:20

... leads to decay time scales 10 –100 times faster than what is usual in atoms Our timedomain data show directly that population decay effects are the dominant contribution to frequency- domain linewidths ... relaxation lifetime of the 2p0 state in Si:P has the longest lifetime because it is farthest from the peak in the density of phonon states (20) The fact that the 2pϮ shows a slightly shorter lifetime than ... simple rate equation model (22) Three states are important: (i) the ground state, 1s(A1), (ii) the state excited by the pump (2p0), and (iii) the ionized state, with dimensionless occupation probabilities...

Ngày tải lên: 16/03/2014, 15:30

Ngày tải lên: 17/03/2014, 13:45

... studied in the time domain (e.g., by applying a step) or in the frequency domain (e.g., by applying a sinusoid) The frequency response of a circuit corresponds to the latter test As the frequency ... 11.4.1 Low -Frequency Response • We have thus far seen a number of concepts and tools that help us study the frequency response of circuits Specifically, we have observed that: The frequency response ... relationship between the frequency response and Explain the relationship between the frequency response and step response of the simple lowpass filter shown in Fig 11.4(a) step response of the simple...

Ngày tải lên: 18/03/2014, 18:20

... Sinusoidal Steady State Analysis AC Power Analysis Three-phase Three phase Circuits Magnetically Coupled Circuits Frequency Response The Laplace Transform Two-port Networks Frequency Response - sites.google.com/site/ncpdhbkhn ... sites.google.com/site/ncpdhbkhn Frequency Response • • • • • • • • Transfer Function The Decibel Scale Bode Plots Series Resonance Parallel Resonance Passive Filters Active Filt A ti Filters Scaling Frequency Response ... (poles) Frequency Response - sites.google.com/site/ncpdhbkhn Transfer Function (3) Vo  j 2 –+ vs (t ) + vs = 100sinωt (V) Find the transfer function Vo/Vs and sketch its frequency response...

Ngày tải lên: 27/04/2014, 23:11

... extraction technique using statistical models of Reconstructed State Space (RSS) has been studied The State Space Map (SSM) and State Space Point Distribution (SSPD) plots for each speech unit are ... known as Reconstructed State Space (RSS), is typically constructed by mapping time- lagged copies of the original signal onto axes of the new high dimensional space The time evolution within the ... with embedding dimension d=2 and time delay τ=1 and the corresponding RSS plot is obtained as shown in figure STATE SPACE MAP FOR THE SPEECH RECOGNITION The State Space Map (SSM) for the Malayalam...

Ngày tải lên: 28/04/2014, 10:02

... Maxwell curl equations in both space and time for each time step until the steady state is reached In the case of a sinusoidal source as used in this work, the steady state is reached when all scattered ... when all scattered fields vary sinusoidally in time A commercial code, XFDTD 5.325) from Remcom, Inc (State College, PA) is used for the simulation The time step is 9:63 Â 10À18 s, which is determined ... according to the stability criteria of the FDTD algorithm The total number of time step is 5000 to sufficiently approach the steady state after monitoring the fields at a point 100 nm below the aperture...

Ngày tải lên: 06/05/2014, 08:53

... Maxwell curl equations in both space and time for each time step until the steady state is reached In the case of a sinusoidal source as used in this work, the steady state is reached when all scattered ... when all scattered fields vary sinusoidally in time A commercial code, XFDTD 5.325) from Remcom, Inc (State College, PA) is used for the simulation The time step is 9:63 Â 10À18 s, which is determined ... according to the stability criteria of the FDTD algorithm The total number of time step is 5000 to sufficiently approach the steady state after monitoring the fields at a point 100 nm below the aperture...

Ngày tải lên: 06/05/2014, 08:55

... Finite-Difference Time- Domain Method 1.2.1 The FDTD Algorithm The finite-difference time- domain (FDTD) method belongs to the general class of grid-based differential time- domain numerical methods The time- dependent ... Finite-Difference Time- Domain Method 17 all times, which is usually prohibitive Alternatively, if the Fourier’s integral is done by adding the contributions for each time slice” as time evolves, ... ε, links E and D, at fixed frequency ω Remember the FDTD algorithm operates in the time domain, so when Maxwell’s equations are discretized we should count on a time domain version of (1.50),...

Ngày tải lên: 29/05/2014, 18:40

... limitations in this study First, we limited our study to time- domain features The implementa- Page 11 of 13 tion of frequency and time -frequency domain features with other types of classifiers is worth ... signal channels Investigation of Time- Domain Features Eleven frequently suggested time- domain features with high computational efficiency [10,12,15,26-28] for realtime EMG pattern recognition were ... shifts the mean of the distribution of the studied timedomain EMG features but also increases the features' variance within the classifier space Our results indicated that muscle fatigue fortunately...

Ngày tải lên: 19/06/2014, 08:20

... correctly apply at subcarrier level space- time (ST) or spacefrequency (SF) block codes (BC) that were originally designed for narrowband channels In Figure 1, at time t, data block vector (t) (t) ... easily decodable If trying to apply an Alamouti-based STBC (i.e., precoding in the time domain between time- consecutive frequency samples s(t00 ) and s(t01 =t0 +1)carried by the same k k k0 th subcarrier), ... other hand, if trying to apply an Alamoutibased SFBC (i.e., precoding in the frequency domain between frequency- adjacent frequency samples s(t00 ) and k (t ) sk10=k0 +1 belonging to the same SC-FDMA...

Ngày tải lên: 21/06/2014, 00:20

... Based on Time -Frequency Analysis 2.1 Brief Review of Time -Frequency Analysis A given signal can be represented in many ways; however, the most important ones are time and frequency domain representations ... 256 Time- res = 250 Time (s) 200 150 100 50 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 Frequency (Hz) Figure 1: Time -frequency representation of a quadratic FM signal: the signal’s time domain ... particular features of this signal in the time -frequency domain that would be used to identify the watermark and, consequently, its ownership In discrete -time domain, the selected watermark signal...

Ngày tải lên: 21/06/2014, 08:20

... extending the cooperative communication strategy from the time domain to the time -frequency domain, by incorporating the Orthogonal Frequency- Division Multiple Access (OFDMA) concept Practical ... messagecombining methods could be used: (i) symbol-level combining, which is specific to spacetime /space- frequency coding and to maximum ratio combining These message combining techniques provide ... proposes two cooperation algorithms, serving one UT, that employ in a joint manner the distributed space frequency coding and distributed FEC, analyzes their performances and compares these performances...

Ngày tải lên: 21/06/2014, 11:20