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Fig. 2


Compression example of a single baseline of a LOFAR observation with high S/N. Top-left plot: original data; top-right plot: compression with AF-normalization; bottom-left plot: compression with RF-normalization; bottom-right plot: compression with row normalization. Compression was performed with the 2.5σ-truncated Gaussian 3-bit quantization. The red, green, blue and black dots represent the XX, XY, YX and YY correlations, respectively.

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