Low-complexity N-port ADCs using 2-D Δ-Σ noise-shaping for N-element array receivers

@article{Nikoofard2017LowcomplexityNA,
  title={Low-complexity N-port ADCs using 2-D Δ-Σ noise-shaping for N-element array receivers},
  author={Amir Hossein Nikoofard and Jifu Liang and Michael D Twieg and Suranga Handagala and Arjuna Madanayake and Leonid Belostotski and Soumyajit Mandal},
  journal={2017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS)},
  year={2017},
  pages={301-304}
}
A novel multi-dimensional noise-shaping method is proposed to extend Δ-Σ modulation to the two-dimensional (2-D) (space, time) case. It uses spatial oversampling to provide another degree of freedom for ADC designers to shape quantization noise when temporal oversampling is limited. The method uses lossless discrete integrators (LDIs) to implement spatial integrators and is suitable for use in microwave and mm-wave array processing systems. The resulting 2-D noise shaping reduces the spectral… CONTINUE READING