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The clock frequency tolerance and instability have a big impact on positioning accuracy and precision in UWB localization systems. The paper deals with synchronization and TDOA error reduction technique relying on reference packets transmission. The method was implemented in the UWB positioning system. The paper contains description of the method, system architecture and results of performed measurements.
The need for wideband data converters (DAC and ADC) with increasingly higher sampling frequencies and data resolutions are driven by new applications, as well as advances in existing ones. The bandwidth limitations of current I/O technologies, such as CMOS or LVDS, force the need for higher pin counts on converter products. The JESD204 standard interface offers several advantages over its CMOS and...
As a key technique in distributed systems, time synchronization plays an important role in time sensitive modern industrial wireless local area networks (WLANs). Based on time packet exchange technology, the IEEE 1588 precise time protocol (PTP) achieves high precise and low power consumption time synchronization in wired Ethernet. In WLANs, however, it is difficult for the wireless sensor nodes to...
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