Amplitude and Frequency Modulation of Super-Nyquist Frequency from Kepler Photometric Sampling
نویسندگان
چکیده
منابع مشابه
Amplitude and Frequency/Phase Modulation
I always had difficulties in understanding frequency modulation (FM) and its frequency spectrum. Even for the pure tone modulation, the FM spectrum consists of an infinite number of sidebands whose signs change from one sideband to the next one and whose amplitudes are given by the horrible Bessel functions. . . I work for Zurich Instruments, a Swiss maker of lock-in amplifiers and it has becom...
متن کاملDetection of combined frequency and amplitude modulation.
This article is concerned with the detection of mixed modulation (MM), i.e., simultaneously occurring amplitude modulation (AM) and frequency modulation (FM). In experiment 1, an adaptive two-alternative forced-choice task was used to determine thresholds for detecting AM alone. Then, thresholds for detecting FM were determined for stimuli which had a fixed amount of AM in the signal interval o...
متن کاملFrequency Estimation of Multiple Sinusoids with Sub-Nyquist Sampling Sequences
In some applications of frequency estimation, the frequencies of multiple sinusoids are required to be estimated from sub-Nyquist sampling sequences. In this paper, we propose a novel method based on subspace techniques to estimate the frequencies by using under-sampled samples. We analyze the impact of under-sampling and demonstrate that three subNyquist sequences are general enough to estimat...
متن کاملAmplitude and frequency modulation in wall turbulence
B. Ganapathisubramani, N. Hutchins, J. P. Monty, D. Chung and I. Marusic Journal of Fluid Mechanics / Volume 712 / December 2012, pp 61 91 DOI: 10.1017/jfm.2012.398, Published online: 27 September 2012 Link to this article: http://journals.cambridge.org/abstract_S0022112012003989 How to cite this article: B. Ganapathisubramani, N. Hutchins, J. P. Monty, D. Chung and I. Marusic (2012). Amplitu...
متن کاملSuper-Nyquist asteroseismology with the Kepler Space Telescope
Barycentric corrections made to the timing of Kepler observations, necessitated by variations in light arrival time at the satellite, break the regular time-sampling of the data – the time stamps are periodically modulated. A consequence is that Nyquist aliases are split into multiplets that can be identified by their shape. Real pulsation frequencies are distinguishable from these aliases and ...
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ژورنال
عنوان ژورنال: Research Notes of the AAS
سال: 2021
ISSN: 2515-5172
DOI: 10.3847/2515-5172/abeb63