System study for UWB non coherent receivers enabling ranging and compliance with IEEE 802.15.4a draft standard

2006 ◽  
Author(s):  
L. Ouvry
Keyword(s):  
System Study ◽  
Draft Standard ◽  
Coherent Receivers ◽  
Ieee 802.15.4A

scholarly journals Ranging Performance of the IEEE 802.15.4a UWB Standard under FCC/CEPT Regulations

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Thomas Gigl ◽  
Florian Troesch ◽  
Josef Preishuber-Pfluegl ◽  
Klaus Witrisal
Keyword(s):  
Wireless Sensor Networks ◽  
High Accuracy ◽  
Ultra Wideband ◽  
Wireless Sensor ◽  
Operating Range ◽  
Link Budget ◽  
Coherent Receivers ◽  
Ieee 802.15.4A ◽  
Energy Detectors ◽  
Pulse Spacing

The IEEE 802.15.4a standard for wireless sensor networks is designed for high-accuracy ranging using ultra-wideband (UWB) signals. It supports coherent and noncoherent (energy detector) receivers, thus the performance-complexity-tradeoff can be decided by the implementer. In this paper, the maximum operating range and the maximum allowed pathloss are analyzed for ranging and both receiver types, under FCC/CEPT regulations. The analysis is based on the receiver working points and a link budget calculation assuming a frees-pace pathloss model. It takes into consideration the parameters of the preamble, which influence the transmit power allowed by the regulators. The best performance is achieved with the code sequences having the longest pulse spacing. Coherent receivers can achieve a maximum operating range up to several thousand meters and energy detectors up to several hundred meters.

ARMY AIRCRAFT VOICE-WARNING SYSTEM STUDY.

1968 ◽  
Author(s):  
JAMES E. BROWN ◽  
CARMINE M. BERTONE ◽  
RICHARD W. OBERMAYER
Keyword(s):  
Warning System ◽  
System Study

Wide-Range and Fast-Tracking Non-Data-Aided Frequency Offset Estimator for QAM Optical Coherent Receivers

2016 ◽  
Vol E99.B (7) ◽  
pp. 1416-1425 ◽  
Author(s):  
Tadao NAKAGAWA ◽  
Takayuki KOBAYASHI ◽  
Koichi ISHIHARA ◽  
Yutaka MIYAMOTO
Keyword(s):  
Frequency Offset ◽  
Fast Tracking ◽  
Wide Range ◽  
Coherent Receivers

Centralized vs decentralized lunar power system study

1991 ◽  
Author(s):  
KENNETH METCALF ◽  
RICHARD HARTY ◽  
GERALD PERRONNE
Keyword(s):  
Power System ◽  
System Study

FESTIP system study - An overview

1996 ◽  
Author(s):  
H. KUCZERA ◽  
P.W. SACHER ◽  
CH. DUJARRIC
Keyword(s):  
System Study
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