State system for ensuring the uniformity of measurements. State verification scheme for instruments measuring ethanol content in gaseous and liquid media
Information technology. Real-time locating systems (RTLS). Part 22. Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air interface protocol: Transmitters operating with multiple spread codes and employing a QPSK data encoding and Walsh offset QPSK (WOQPSK) spreading scheme