Reconfigurable dual-channel tri-mode all-band RF receiver for next generation GNSS

Chen, Dongpo; Pan, Wenjie; Jiang, Peichen; Jin, Jing; Wu, Jun; Tan, Junzhang; Lü, Chao; Zhou, Jianjun

doi:10.1109/asscc.2010.5716575

Cited by 10 publications

(1 citation statement)

References 8 publications

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“…The straightforward approach is to widen the bandwidth and to use higher sampling rates for each desired GNSS-signal while keeping the original low-IF architecture where the intermediate frequency is within the range of the radio frequency bandwidth. These solutions can already be found as integrated circuits and can easily be tuned to the required GNSS signal band (Wistuba et al, 2011;Chen et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Theoretical Analysis of Overlay GNSS Receiver Effects

Rügamer

Mongrédien

Urquijo

et al. 2012

International Journal of Embedded and Real-Time Communication Systems

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Having given a short overview of GNSS signals and state-of-the-art multi-band front-end architectures, this paper presents a novel contribution to efficient multi-band GNSS reception. A general overlay based front-end architecture is introduced that enables the joint reception of two signals broadcast in separate frequency bands, sharing just one common baseband stage. The consequences of this overlay are analyzed for both signal and noise components. Signal overlay is shown to have a negligible impact on signal quality. It is shown that the noise floor superposition results in non-negligible degradations. However, it is also demonstrated that these degradations can be minimized by judiciously setting the relative gain between the two signal paths. As an illustration, the analytical optimal path-control expression to combine overlaid signals in an ionospheric-free pseudorange is derived for both Cramér-Rao Lower Bound and practical code tracking parameters. Finally, some practical overlay receiver and path control aspects are discussed.

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Section: Introductionmentioning

confidence: 99%

Theoretical Analysis of Overlay GNSS Receiver Effects

Rügamer

Mongrédien

Urquijo

et al. 2012

International Journal of Embedded and Real-Time Communication Systems

View full text Add to dashboard Cite

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A high-efficiency, low-noise power solution for a dual-channel GNSS RF receiver

Jian

Taishan

Jianlian³

et al. 2012

J. Semicond.

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A high-efficiency low-noise power solution for a dual-channel GNSS RF receiver is presented. The power solution involves a DC-DC buck converter and a followed low-dropout regulator (LDO). The pulsewidth-modulation (PWM) control method is adopted for better noise performance. An improved low-power highfrequency PWM control circuit is proposed, which halves the average quiescent current of the buck converter to 80 A by periodically shutting down the OTA. The size of the output stage has also been optimized to achieve high efficiency under a light load condition. In addition, a novel soft-start circuit based on a current limiter has been implemented to avoid inrush current. Fabricated with commercial 180-nm CMOS technology, the DC-DC converter achieves a peak efficiency of 93.1% under a 2 MHz working frequency. The whole receiver consumes only 20.2 mA from a 3.3 V power supply and has a noise figure of 2.5 dB.

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Advanced System Analysis and Survey on the GPS Receiver Front End

Kumari

Bhatt

2022

IEEE Access

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A fully integrated GPS receiver system can enable unique system capabilities by synthesizing both receiver front end and baseband on the same chip, leading to lower area overhead and higher integration. A review on the GPS receiver system that focuses on front end design is presented in the paper. The first section discusses the various global navigation satellite system (GNSS), followed by the GPS working section. Afterwards, the paper discusses the previous works on the GPS receiver front end design. It provides a detailed survey and classification of various receiver architecture, including the LNA, mixer, filter, and ADC topologies. Besides, several image rejection techniques are presented for more than 50 GPS receivers. The various performance parameters of the GPS receiver front end in the literature are presented with the graphical view in the state-of-the-art discussion section. This literature survey provides the most extensive compilation to date of the various topologies, techniques and explains their implementation in the GPS receiver system. A new figure of merit that includes all the system parameters is proposed. The FOM can be an excellent reference to enhance the research work in the field of GPS receivers. In the end, the paper describes the possible research scope and challenges associated with the design of the GPS receiver front end.INDEX TERMS global navigation satellite system (GNSS), image rejection, RF front end, sensitivity, spurious free dynamic range (SFDR), wireless communication.

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Reconfigurable dual-channel tri-mode all-band RF receiver for next generation GNSS

Cited by 10 publications

References 8 publications

Theoretical Analysis of Overlay GNSS Receiver Effects

Theoretical Analysis of Overlay GNSS Receiver Effects

A high-efficiency, low-noise power solution for a dual-channel GNSS RF receiver

Advanced System Analysis and Survey on the GPS Receiver Front End

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