1、 / 24730-21 2014 (RTLS) 21 2,4 c (DSSS): RTLS, DBPSK BPSK ISO/IEC 24730-21:2012 Information technology Real time locating systems (RTLS) Part 21: Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air interface protocol: Transmitters operating with a single spread code and employing a DBPSK data encodin
2、g and BPSK spreading scheme (IDT) 2015 / 24730-21 2014 II 1 - - . ( . .) - - ( ) , 4, /1 2 355 . 3 - 11 2014 . 1571- 4 / 24730-21:2012 - . (RTLS). 21. - 2,4 c (DSSS): RTLS, - DBPSK BPSK (ISO/IEC 24730-21:2012 Information technology Real time locating systems (RTLS) Part 21: Direct Sequence Spread Sp
3、ectrum (DSSS) 2,4 GHz air interface protocol: Transmitters operating with a single spread code and employing a DBPSK data encoding and BPSK spreading scheme) - , 5 6 . () - () . 1.02012 ( 8). ( 1 ) , -. () - . , (gost.ru) , 2015 -, - / 24730-21 2014 III 1 .1 2 .1 3 .2 4 2 5 2 5.1 .2 5.2 2,4 2 5.3 .2
4、 5.4 .2 5.5 .2 6 .7 6.1 7 6.2 .7 6.3 .7 6.4 RTLS .12 6.5 DSSS 13 7 .16 7.1 16 7.2 RTLS OOK/FSK 16 7.3 FSK .18 7.4 RTLS 30 () 32 () .34 .35 / 24730-21 2014 IV / 24730 ( / 24730) - . (RTLS) : - 1: (API); - 2: 2,4 - (DSSS); - 21: 2,4 c - (DSSS): RTLS, - DBPSK BPSK; - 22: 2,4 c - (DSSS): RTLS, - QPSK QP
5、SK (WOQPSK); - 5: (CSS) 2,4 ; - 6: (UWB)1); - 61: (UWB) - ; - 62: (UWB) - . 1) / 24730-6 . / 24730-21 2014 1 (RTLS) 21 2,4 c (DSSS): RTLS, DBPSK BPSK Information technology. Real time locating systems (RTLS). Part 21. Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air interface protocol: Transmitter
6、s operating with a single spread code and employing a DBPSK data encoding and BPSK spreading scheme 2016 01 01_ 1 / 24730-2 , X-Y -. RTLS, - , , - (DSSS). , - RTLS, - RTLS. / 24730-2 , . RTLS, - DBPSK BPSK. 2 , . , , . , , -, : / 24730-2:2012, . - (RTLS). 2. 2,4 - (DSSS) (ISO/IEC 24730-2:2012, Infor
7、mation technology Real time locating systems (RTLS) Part 2: Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air interface protocol) / 24730-22:2012, . - (RTLS). 22. 2,4 - (DSSS): RTLS, QPSK QPSK (WOQPSK) (ISO/IEC 24730-22:2012, / 24730-21 2014 2 Information technology Real time locating systems (RTL
8、S) 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) 3 / 24730-2. 4 / 24730-2. 5 5.1 / 24730-2. 5.2 2,4 - 2,4 , / 24730-2. 5.3 , / 24730
9、2. 5.4 - / 24730-2. 5.5 , 1. - . - : 30 o +50 o. . , - , , - . 2. 3 4 -, . 1 - (DSSS) RTLS 2400 2483,50 25 (ppm), 2441,750 60 / 24730-21 2014 3 1: 10 ( - ) . 2: - - , - , BPSK ( ) DSSS ( -) 59,7 / 0,001% PN 30,521875 25 (ppm) PN 511 PN 0x1CB 1: 56 2: 72 3: 88 4: 152 G(x) = X12 + X11 + X3 + X2 + X + 1 - 0x80F - , 5 - 638 - , 18 - 125 16 2 (ppm) 0,50 , 33 15 100 100 1 / 24730-21 2014 4 2 - (DSSS) RTLS , 2400 2483,50 25 (ppm) 2441,750 26 1: 10 ( - ) . 2: - - , 1) , BPSK ( ) DSSS ( -) 59,7 / 0,001% PN 15,260938 25 (ppm) PN 511 PN 0x8D 1: 56 2: 72 3: 88 4: 152 G(
