Engineers are familiar with using the Fourier transform to convert between time-varying signals and their corresponding frequency spectrum. What is not as familiar is that spatially varying signals, ...
The spectral manipulation of photons is essential for linking components in a quantum network. Large frequency shifts are needed for conversion between optical and telecommunication frequencies, while ...
The EXPAND procedure provides time interval conversion and missing value interpolation for time series. The EXPAND procedure includes the following features: conversion of time series frequency; for ...
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