Chirp Spread Spectrum Transceiver Design and Implementation for Real Time Locating System

Title
Chirp Spread Spectrum Transceiver Design and Implementation for Real Time Locating System
Authors
정정화
Keywords
FREQUENCY OFFSET; RANGING SYSTEM; OFDM SYSTEMS; DELAY ESTIMATION; SIGNALS ROBUST; TOA ESTIMATION; SYNCHRONIZATION; ALGORITHMS; AGC
Issue Date
2015-05
Publisher
HINDAWI PUBLISHING CORPORATION
Citation
INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS, Page. 1-2
Abstract
A chirp spread spectrum (CSS) transceiver architecture for IEEE 802.15.4a is proposed and implemented. In the transmitter, the size of the read-only memory that stores CSS signal samples for the chirp modulator is reduced by removing duplicate samples among subchirps. In the receiver, a matched filter is utilized to remove the other band noise caused by the band hopping property of CSS. A robust time synchronizer and chirp demodulator based on the matched filter are proposed. Low complexity architectures of the matched filter and biorthogonal decoder are also proposed. All of the proposed architectures are implemented in the field-programmable gate array chip and verified.
URI
http://dl.acm.org/citation.cfm?id=2836315http://hdl.handle.net/20.500.11754/24864
ISSN
1550-1329; 1550-1477
DOI
http://dx.doi.org/10.1155/2015/572861
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > DEPARTMENT OF ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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