نتایج جستجو برای: multi rate sampling frequency
تعداد نتایج: 1955852 فیلتر نتایج به سال:
The paper introduces a method for generating trajectories with curve sharpness and curvature constraints. Trajectories are based on continuous-curvature paths using Single & Double Continuous-Curvature paths. The paper also proposes a multi-rate control scheme by considering different dynamics with different sampling frequencies: global path planner at low frequency; target update based on Look...
Multi-tap CMOS pixels that are composed of a single photodiode, multiple sets charge transfer gate and storage diode, draining can implement functional imaging. In this paper, imaging systems based on the multi-tap pixel categorized into those with synchronized active illuminations using coded exposure. Applications for quantitative wide-field spatial frequency domain (SFDI) structured light pr...
This paper considers the recovery of continuous signals in infinite dimensional spaces from the magnitude of its frequency samples. It proposes a sampling scheme which involves a combination of oversampling and specific structured modulations. This allows for almost every signal with finite support to be reconstructed from its magnitude samples in the frequency domain up to a unimodular constan...
In this report, we studied the sampling synchronization of a discrete signal in the receiver of a communication system and found that the frequency of the received signal usually exhibits some unpredictable deviations. We observed many harmonics caused by the frequency deviations of the discrete received signal. These findings indicate that signal sampling synchronization is an important resear...
This study presents a compressed sensing (CS) based sampling approach for repetitive ultrasonic signal. Proposed system considers recovering ultrasonic signal with high equivalent sampling frequency from samples captured using analog-to-digital converter (ADC) clocked at a rate lower than Nyquist rate. A basis function is constructed to realize ultrasonic signal sparse representation, which pav...
Strict criteria have been established for measurement of basal metabolic rate and standard evaporative water loss to ensure that data can be compared intra- and interspecifically. However, data-sampling regimes vary, from essentially continuous sampling to interrupted (switching) systems with data recorded periodically at more widely spaced intervals. Here we compare one continuous and three in...
A signal is stationary if its statistical characteristics do not change with time. Signals of practical interest often do not comply with this requirement [1]. It has been quit difficult to satisfactorily handle non-stationary signals using conceptualizations based on stationarity, as it is assumed, for example, by classical Fourier transform. Nonstationary signals justify the need for joint ti...
We obtain the functional defining the price and quality of sample readings of the generalized velocities. It is shown that the optimal sampling frequency, in the sense of minimizing the functional quality and price depends on the sampling of the upper cutoff frequency of the analog signal of the order of the generalized velocities measured by the generalized coordinates, the frequency propertie...
A multi-rate discrete-time model, whose response agrees exactly with that of a continuous-time original at all sampling instants for any sampling periods, is developed for a linear system, which is assumed to have multiple real eigenvalues. The sampling rates can be chosen arbitrarily and individually, so that their ratios can even be irrational. The state space model is obtained as a combinati...
This paper presents a fully automated measurement system based around a Tektronix sampling oscilloscope. The system is capable of measuring calibrated time domain voltage and current waveforms at the device plane. A novel active load-pull loop is incorporated which has proved very useful for increasing the speed of multi-tone device characterization, moreover the architecture opens up the possi...
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