$$\varvec{\varDelta }$$Δ–$$\varvec{\varSigma }$$Σ noise-shaping in 3-D space–time for 2-D wideband antenna array receivers
$$\varvec{\varDelta }$$Δ–$$\varvec{\varSigma }$$Σ noise-shaping in 3-D space–time for 2-D wideband antenna array receivers
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$$varvec{varDelta }$$Δ–$$varvec{varSigma }$$Σ 2D 宽带天线阵列接收器的 3D 时空噪声整形
DOI：
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发表时间：
2018
影响因子：
2.5
通讯作者：
S. Mandal
中科院分区：
文献类型：
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作者：
Yingying Wang;Jifu Liang;L. Belostotski;A. Madanayake;S. Mandal
提出了一种新的Delta-Sigma($$\varDelta$$Δ-$$\varSigma$$Σ)调制方法，将噪声整形扩展到三维空间和时间。结果表明，空间过采样Nx×Ny天线阵与噪声整形低噪声放大器和模数转换器相耦合，可以通过将多维谱整形到所有可能传播的电磁波的时空支持区域之外的较高空间频率来减小带内附加噪声和失真。在中心频率为4 GHz的宽带射频输入的65 nm CMOS工艺中的详细电路仿真证实，所提出的3-D噪声整形方法在2-D阵列接收器的噪声系数和分辨率方面有显著的改善。
A novel delta–sigma ($$\varDelta $$Δ–$$\varSigma $$Σ) modulation method is proposed for extending noise-shaping to three dimensions: 2-D space and time. We show that a spatially-oversampled $$N_{x}\times N_{y}$$Nx×Ny antenna array coupled to a noise-shaped low-noise amplifier and analog-to-digital converter can diminish in-band additive noise and distortion by shaping the multi-dimensional spectrum towards higher spatial frequencies that are outside the space–time regions of support of all possible propagating electromagnetic waves. Detailed circuit simulations in a 65 nm CMOS process with wideband RF inputs at a center frequency of 4 GHz confirm that the proposed 3-D noise-shaping approach provides significant improvements in noise figure and resolution for 2-D array receivers.
针对 N 元件阵列接收器使用 2D α-β 噪声整形的低复杂度 N 端口 ADC
DOI：
10.1109/mwscas.2017.8052920
发表时间：
2017
期刊：
2017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS
影响因子：
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作者：
Nikoofard, A.;Liang, J.;Twieg, M.;Handagala, S.;Madanayake, A.;Belostotski, L.;Mandal, S.
通讯作者：
Mandal, S.
使用 2 维时空 α β 噪声整形的毫米波阵列处理器的 N 端口 LNA
DOI：
10.1109/mwscas.2017.8053212
发表时间：
2017
期刊：
017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS
影响因子：
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作者：
Wang, Yingying;Handagala, Suranga;Madanayake, Arjuna;Belostotski, Leonid;Mandal, Soumyajit
通讯作者：
Mandal, Soumyajit