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In this work, two positioning systems based on the two-way ranging synchronization-protocol, are discussed and compared. A frequency modulated continuous wave (FMCW), and a ultra wide band (UWB) radio detection and ranging (Radar) setup are used for this comparison. Indoor and outdoor ranging measurements between one host and one tag node were performed and evaluated. These radar systems present an...
This paper present the developments of a low-cost Phasor Measurement Unit (PMU) for smart grid monitoring. This PMU is being developed for large-scale use in the distribution system allowing to monitor local and transmission level events. The device provides magnitude, angle and frequency data of the AC voltage in a synchronized way, between any point in the electrical system, even geographically...
Car2X communication is about to enter the mass market in upcoming years. So far all realization proposals heavily depend on the global positioning system for providing location information and time synchronization. However, studies on security impact of this kind of data input have focused on the possibility to spoof location information. In contrast, attacks on time synchronization have not received...
This paper presents our findings in using pulse measurements from a jittery one pulse per second (pps) global positioning system (GPS) clock, to synchronize the real-time clock (RTC) in each node of a wireless sensor network, when the timing jitter is subject to a empirically determined bimodal non-Gaussian distribution. Specifically, we 1) estimate the RTC phase and align it with an estimate of the...
The IEEE PSRC System Protection Subcommittee Working Group C14 has produced a report that describes practical applications of synchrophasors in protection applications. The report begins with the history of synchrophasors and then goes into issues to consider in their application. Some existing applications are described and then future applications that have been considered or are in development...
The time synchronization system which uses the BeiDou and GPS as double clock source can receive GPS and the BeiDou satellite signal. The system built-in constant temperature crystal clock or rubidium clock utilizes the "BeiDou bidirectional synchronization method" technology and advanced control algorithm. The core control processor using STM32 chip with high performance, which can achieve...
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