Results 11 to 20 of about 8,642 (263)
A Modulated Wideband Converter Model Based on Linear Algebra and Its Application to Fast Calibration [PDF]
Sensors, 2022 In the context of cognitive radio, smart cities and Internet-of-Things, the need for advanced radio spectrum monitoring becomes crucial. However, surveillance of a wide frequency band without using extremely expensive high sampling rate devices is a ...
Gilles Burel +2 more
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Spectrum Sensing Using Co-Prime Array Based Modulated Wideband Converter [PDF]
Sensors, 2017 As known to us all, it is challenging to monitor wideband signals in frequency domain due to the restriction of hardware. Several practical sampling schemes, such as multicoset sampling and the modulated wideband converter (MWC), have been proposed. In this work, a co-prime array (CA) based modulated wideband converter (MWC) spectrum sensing method is ...
Lv, Wanghan, Wang, Huali, Mu, Shanxiang
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Wideband spectrum sensing based on advanced sub-Nyquist sampling structure
EURASIP Journal on Advances in Signal Processing, 2022 As the bandwidth increases, the high-speed sampling rate becomes the bottleneck for the development of wideband spectrum sensing. Wideband spectrum sensing with sub-Nyquist sampling attracts more attention and modulated wideband converter (MWC) is an ...
Xue Wang, Qian Chen, Min Jia, Xuemai Gu
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Relevant support recovery algorithm in modulated wideband converter [PDF]
IET Communications, 2019 Modulated wideband converter (MWC) is a compressed spectrum sensing system that randomly moves the sparse wideband signal spectrum to the baseband to realise low‐speed sampling. Then, obtaining the effective support which is based on compressed sensing is the most important part for the signal recovery from samples.
Jiawei Zhu, Jie Li, Jian Li, Zhi Li
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Energies, 2021 In this work, an idea of a wideband, precision, power electronics programmable voltage source (PVS) is presented. One of the basic elements of the converter, the control section, contains a continuous-time sigma-delta modulator (SDM) with a pair of ...
Michał Gwóźdź
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Theoretical Analysis of Noise Figure for Modulated Wideband Converter [PDF]
IEEE Transactions on Circuits and Systems I: Regular Papers, 2020 The Modulated Wideband Converter (MWC) is one of the promising sub-Nyquist sampling architectures for sparse wideband signal sensing, cognitive radio applications and so on. In order to design an MWC-based RF receiver that meets a target RF specification, noise figure (NF) of the MWC has to be well-defined by its design properties.
Zolboo Byambadorj +5 more
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From Theory to Practice: Sub-Nyquist Sampling of Sparse Wideband Analog Signals [PDF]
, 2009 Conventional sub-Nyquist sampling methods for analog signals exploit prior information about the spectral support. In this paper, we consider the challenging problem of blind sub-Nyquist sampling of multiband signals, whose unknown frequency support ...
Eldar, Yonina C., Mishali, Moshe
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Online calibration of Modulated Wideband Converter
2016 24th Signal Processing and Communication Application Conference (SIU), 2016 In this work, we propose a new method for online calibration of recently proposed Modulated Wideband Converter (MWC), which digitizes wideband sparse signals below the Nyquist limit without loss of information by using compressive sensing techniques.
Alp, Y. K. +4 more
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IEEE Access, 2020 In this paper, we present a modified modulated wideband converter (MWC)-based digital receiver for fractional bandlimited signals, and further propose an intra-pulse modulation recognition method in discrete time fractional Fourier domain (DTFrFD) for ...
Xiaomin Li, Huali Wang, Haichao Luo
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Implementation Aspects of a Transmitted-Reference UWB Receiver [PDF]
, 2005 In this paper, we discuss the design issues of an ultra wide band (UWB) receiver targeting a single-chip CMOS implementation for low data-rate applications like ad hoc wireless sensor networks. A non-coherent transmitted reference (TR) receiver is chosen
Bevilacqua +32 more
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