منابع مشابه
Fixed - Lag Demodulation of Discrete Noisy Measurements of FM Signals *
This paper considers an application of some recent results of fixed-lag smoothing algorithms to the demodulation of discrete noisy measurements of FM signals. The problem is attacked by first modelling the communications system in terms of a finite dimensional nonlinear stochastic system and relating the resulting model to an estimation problem for which approximate solutions can be obtained. P...
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The quality of polarimetric radar data degrades as the signal-to-noise ratio (SNR) decreases. This substantially limits the usage of collected polarimetric radar data to high SNR regions. To improve data quality at low SNRs, multilag correlation estimators are introduced. The performance of the multilag estimators for spectral moments and polarimetric parameters is examined through a theoretica...
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Nomenclature F = state transition matrix H = matrix giving the ideal/noiseless connection between measurements and states I = identity matrix k = time index L = noise sensitivity matrix in nonlinear systems N = lag time constant integer P = estimation-error covariance matrix s = arbitrary time step used in inductive proof xk = state at time index k x̂ = state estimate x̂k = a priori state estimat...
متن کاملElectronic trigger for capacitive touchscreen and extension of ISO 15781 standard time lag measurements to smartphones
We present in this paper a novel capacitive device that stimulates the touchscreen interface of a smartphone (or of any imaging device equipped with a capacitive touchscreen) and synchronizes triggering with the DxO LED Universal Timer to measure shooting time lag and shutter lag according to ISO 15781:2013. The device and protocol extend the time lag measurement beyond the standard by includin...
متن کاملJet lag.
INTRODUCTION Jet lag affects most air travellers crossing five or more time zones; it tends to be worse on eastward than on westward flights. METHODS AND OUTCOMES We conducted a systematic review and aimed to answer the following clinical question: What are the effects of interventions to prevent or minimise jet lag? We searched: Medline, Embase, The Cochrane Library, and other important data...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1955
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.70.3.352-353.1955