A low-power multirate differential PSK receiver for space applications

Wireless communication for deep-space and satellite applications needs to accommodate the Doppler shift caused by the movement of the space vehicle and should consume low power to conserve the onboard power. A low-power phase-shift keying (PSK) receiver has been designed for such applications. The r...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology 2005-11, Vol.54 (6), p.2074-2084
Main Authors: Yuce, M.R., Wentai Liu
Format: Article
Language:English
Subjects:
Applied sciences
Artificial satellites
Baseband
Detection, estimation, filtering, equalization, prediction
Differential detection
Digital
Direct current
Doppler effect
Doppler shift
Electric potential
Energy consumption
Exact sciences and technology
Frequency
Information, signal and communications theory
Intermediate frequencies
Low-frequency noise
Phase shift keying
phase-shift keying (PSK)
Receivers
Robustness
Signal and communications theory
Signal, noise
Space applications
space communications
Space vehicles
subsampling
Telecommunications and information theory
Wireless communication
Wireless communications
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Summary:Wireless communication for deep-space and satellite applications needs to accommodate the Doppler shift caused by the movement of the space vehicle and should consume low power to conserve the onboard power. A low-power phase-shift keying (PSK) receiver has been designed for such applications. The receiver employs double differential detection to be robust against Doppler shift and uses subsampling with a 1-bit A/D converter and digital decimation architecture at the front end to achieve low-power consumption. The receiver is also designed to be programmable to operate using single-stage differential detection instead of double-stage differential detection at low Doppler rates to obtain optimum performance. Furthermore, the baseband can be employed in either direct subsampling or intermediate frequency (IF)-sampling front ends. Both front ends offer minimal power consumption and differ from traditional types by replacing some conventional analog components such as a voltage-controlled oscillator, mixer, or phase-locked loop with their digital counterparts. This eliminates problems due to dc offset, dc voltage drifts, and low-frequency (LF) noise. The paper also includes a brief discussion of the nonidealities existing in real applications. The proposed phase shift keying (PSK) receiver supports a wide range of data rates from 0.1-100 Kbps and has been implemented in a CMOS process.
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2005.858196