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This paper proposes multi-dimensional signal processing methods to extend Δ - Σ modulation into the two-dimensional (2-D) space, time case. The proposed 2-D noise-shaping methods employ lossless discrete integrators (LDIs) to reduce the spectral overlap of the regions of support (ROSs) of array signals with that of both thermal and quantization noise in microwave and mm-wave array processing syste...

ieee transactions on circuits and systems. i, regular papers

&lt;inline-formula&gt; &lt;tex-math notation="LaTeX"&gt;$\Delta-\Sigma$ &lt;/tex-math&gt; &lt;/inline-formula&gt; Noise-Shaping in 2-D Space-Time for Wideband Antenna Array Receivers