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2. High-resolution imaging
2.1 Imaging and spectral density
An unknown distribution of incoherent sources T(τ) (figure 5 ) can be considered as the spectral density of a random function: the field E(ν, t) observable with an array of sensors placed along an axis . Indeed, we have seen that T(τ) is expressed from the covariance samples C m by a Fourier series (§
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High-resolution imaging
Spatial filtering and auto-adaptive antennas
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