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A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization
นักวิจัย : Han, Dong , Zheng, Yuanjin
คำค้น : DRNTU::Engineering::Electrical and electronic engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2552
อ้างอิง : Han, D., & Zheng, Y. (2009). A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization. IEEE Transactions On Circuits And Systems—II, 56(9), 719-723. , 1549-7747 , http://hdl.handle.net/10220/6236 , http://dx.doi.org/10.1109/TCSII.2009.2027969
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : IEEE transactions on circuits and systems—II
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

An ultralow-power Gaussian frequency-shift keying (GFSK) demodulator with large tolerance for process variations and wide coverage of data rate for low-intermediate-frequency (low-IF) wireless receivers is presented. A novel multithreshold linear phase quantization technique is proposed to improve the demodulator sensitivity and relax the tradeoff between the selection of the IF and the data rate. A dynamic threshold slicer is employed to efficiently overcome the dc drifts caused by the input frequency offset. The demodulator achieves 490-mV input dc offset cancellation, 800-kHz frequency offset tolerance, and data rate coverage from 100 kb/s to 2 Mb/s. The measured signal-to-noise ratio (SNR) is 16.0 dB for a 0.1% bit error rate (BER) and a 0.25 modulation index. The demodulator has been fabricated in a 0.18-μm complimentary metal–oxide–semiconductor process with only 0.14-mm2 active area and 450-μA current drawn from a 1.8-V power supply.

บรรณานุกรม :
Han, Dong , Zheng, Yuanjin . (2552). A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Han, Dong , Zheng, Yuanjin . 2552. "A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Han, Dong , Zheng, Yuanjin . "A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2552. Print.
Han, Dong , Zheng, Yuanjin . A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2552.