System and signal design for an energy-efficient multi-frequency localization system

In this paper a concept for an energy-efficient multi-frequency localization system is proposed. The system design aims at extremely light-weight, and thus energy-efficient tags. The localization system is realized by a Wireless Sensor Network comprising signal strength and phase measurements. The concept is based on signals for phase-based ranging. The proposed signals have to meet several constraints: low-power signal generation, efficient signal pro-cessing, and, most important, precise range estimation. The performance of the range estimation is assessed utilizing the Cramér-Rao Lower Bound.

[1]  Steven Kay,et al.  Fundamentals Of Statistical Signal Processing , 2001 .

[2]  P. Racey.  Ecological and Behavioral Methods for the Study of Bats , 2011 .

[3]  Moeness G. Amin,et al.  Multifrequency-based range estimation of RFID Tags , 2009, 2009 IEEE International Conference on RFID.

[4]  Per K. Enge,et al.  Global positioning system: signals, measurements, and performance [Book Review] , 2002, IEEE Aerospace and Electronic Systems Magazine.

[5]  U. Engel,et al.  A theoretical performance analysis of the modernized GPS signals , 2008, 2008 IEEE/ION Position, Location and Navigation Symposium.

[6]  Kristofer S. J. Pister,et al.  Burst Mode Two-Way Ranging with Cramer-Rao Bound Noise Performance , 2008, IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference.

[7]  Joshua J. Millspaugh,et al.  Radiotelemetry; techniques and analysis , 2009 .