Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 3487

c) satellite data measurement blocks. Note Transmission of the low fre uency data for S AS ranging sources is optional 3.6.4.2.2 Each Type 1 message shall include ephemeris decorrelation parameter, ephemeris CRC and source availability duration parameters for one satellite ranging source. The ephemeris decorrelation parameter, ephemeris CRC and source availability duration shall apply to the first ranging source in the message. 3.6.4.2.3 Pseudo-range correction parameters shall be as follows: Coding: the modified -count resets on the hour (xx:00), 20 minutes past the hour (xx:20) and 40 minutes past the hour (xx:40) referenced to GPS time. Additional message flag an identification of whether the set of measurement blocks in a single frame for a particular measurement type is contained in a single Type 1 message or a linked pair of messages. Coding: 0 All measurement blocks for a particular measurement type are contained in one Type 1 message. This is the first transmitted message of a linked pair of Type 1 messages that together contain the set of all measurement blocks for a particular measurement type. asurements nd low fr um age. a at as s d e Modified count the indication of the time of applicability for all the parameters in the message. Spare This is the second transmitted message of a linked pair of Type 1 messages that together contain the set of all measurement blocks for a particular measurement type. Note hen a lin ed pair of Type messages is used for a particular measurement type the number of me e uency data are computed separately for each of the two individual messages a ber of measurements the number of measurement blocks in the mess N Measurement type the type of ranging s puted. ignal from which the corrections have been com ble AS HF d a broadc t messages Me sage type i entifier Message nam Spar s or B dat e rou ranging source Fi s Pr in ai Rese e ati icat e st ns p R ra ti p Note See for message formats e P eudo-range c rections G AS-related a R served for g nd-based nal approach edicted rang egment (FAS g source av ) data lability rved R R served for n onal appl ions served for te are applicatio 9 to 100 S G to 255 S AS pseudoare nge correc ons A 23/11/06 2007/70/II. szám Annex 10 — Aeronautical Communications Volume I Coding: 0 C/A or CSA code L1 reserved reserved reserved 4 to 7 spare Ephemeris decorrelati idual ephemeris errors due to decorrelation for th For a SBAS geostation l be coded as all zeros. For GBAS ground su hat do not broadcast the additional data block 1 in the Type 2 message, the ephemeris decorrelation paramete Ephemeris CRC the CRC computed with the ephemeris data used to determine corrections for the first measurement block in the message. The all be calculated in accordance with 3.9. The leng nerator polynomial shall be: G(x) x16 x12 x5 1 ion ite shall be: mnx0 th n 576 bits. M(x) for a GPS satellite shall be calculated using the first 24 bits om each of words 3 to S10 of subframes 1, 2 and 3 of the data transmission from that satellite, ANDed with the GPS satellite ephemeris mask of Table B-64. M(x) shall be arranged in the order that bytes are transmitted by the GPS satellite, but with each byte ordered LSB first, such that m1 corresponds to bit 68 of subframe 1, and m576 corresponds to bit 287 of subframe 3. Note clude word (T M) or word ( ) which start each subframe or the ari ASS satellite shall be calculated using GLONASS satellite ephemeris mask of s to bit 85 of string 1, and m340 corresponds For a SBAS geostationary satellite, the ephemeris CRC, if transmitted shall be coded as all zeros. The CRC shall be ordered ch that r1 is the first bit transmitted and r16 is the last bit transmitted. v ich corrections for the ranging source are expected to remain available, relative to the modified -count for the first measurement block. oding: 1111 1110 The duration is greater than or equal to 2 540 seconds. bsystem. on parameter (P): a parameter that characterizes the impact of res e first measurement block in the message. ary satellite, the ephemeris decorrelation parameter, if transmitted, shal bsystems t r shall be coded as all zeros. ephemeris CRC for core satellite constellation(s) ranging sources sh th of the CRC code shall be k 16 bits. The CRC ge The CRC informat field, M(x), for a given satell M(x) n ¦ mixn 1 m1xn 1 m2xn 2 i 1 For a GPS satellite, M(x) shall be of leng fr M(x) for a PS satellite does not in p ty bits at the end of each word For a GLONASS satellite, M(x) shall be of length n 340 bits. M(x) for a GLON trings 1, 2, 3 and 4 of the data transmission from that satellite, ANDed with the s Table B-65. Bits shall be arranged in transmission order such that m1 correspond to bit 1 of string 4. su Source a ailability duration the predicted duration for wh C 1111 1111 Prediction of source availability duration is not provided by this ground su 3.6.4.2.4 The measurement block parameters shall be as follows: Ranging source ID the identity of the ranging source to which subsequent measurement block data are applicable. 23/11/06 A 2007/70/II. szám A endix Annex 10 — Aeronautical Communications able S satellite ep emeris mask Subframe 1: Byte 1 Byte 2 Byte 3 Byte 1 Byte 2 Byte 3 Word 3 0000 0000 0000 0000 0000 0011 Word 4 0000 0000 0000 0000 0000 0000 Word 5 0000 0000 0000 0000 0000 0000 Word 6 0000 0000 0000 0000 0000 0000 Word 9 1111 1111 1111 1111 1111 1111 Word 10 1111 1111 1111 1111 1111 1100 Byte 1 Byte 2 Byte 3 Word 7 0000 0000 0000 0000 1111 1111 Word 8 1111 1111 1111 1111 Subframe 2: Byte 1 Byte 2 Byte Word 3 1111 1111 1111 1111 1111 1111 Word 4 1111 1111 1111 1111 1111 1111 Word 5 1111 1111 1111 1111 1111 1111 Word 6 1111 1111 1111 1111 1111 1111 Word 7 1111 1111 1111 1111 1111 1111 Word 8 1111 1111 1111 1111 1111 1111 Word 9 1111 1111 1111 1111 1111 1111 Word 10 1111 1111 1111 1111 0000 0000 Subframe 3: Byte 1 Byte 2 Byte 3 Byte 1 Byte 2 Byte 3 Word 3 1111 1111 1111 1111 1111 1111 Word 4 1111 1111 1111 1111 1111 1111 Word 5 1111 1111 1111 1111 1111 1111 Word 6 1111 1111 1111 1111 1111 1111 1111 1111 Word 8 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 Word 10 1111 1111 1111 1111 1111 1100 Word 7 1111 1111 1111 1111 Word 9 1111 1 able O ASS satellite ep emeris mask String 1: 0 0000 0000 0000 0000 0000 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 0000 0000 String 2: 0 0000 0000 0000 0000 0000 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 0000 0000 String 3: 0 0000 0111 1111 1111 0000 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 0000 0000 String 4: 0 0000 1111 1111 1111 1111 1111 1100 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 Coding: 1 to 36 GPS satellite IDs (PRN) reserved 38 to 61 GLONASS satellite IDs (slot number plus 37) 62 to 119 spare 120 to 138 SBAS satellite IDs (PRN) 139 to 255 spare Issue of data (I D) The issue of data associated with the ephemeris data used to determine pseudo-range and range rate corrections. A 23/11/06 2007/70/II. szám Annex 10 — Aeronautical Communications Volume I Coding: for GPS, IOD GPS IODE parameter (3.1.1.3.2.2) for GLONASS, IOD GLONASS “tb” parameter (see 3.2.1.3.1) for SBAS, IOD 1111 1111 Note For NASS insert in the MS of the I D seudo range correction (PRC) the correction to the ranging source pseudo-range. ange rate correction (RRC) the rate of change of the pseudo-range correction. pr_gnd e ution associated with the signal-in-space contribution of the pseudo-range error at 6.5.5.2 and 3.6.7.2.2.4). Coding: 1111 1111 Ranging source correction invalid. throug ted with the pseudo-range corrections provided in the same measurement block. s correspond to Bi,1 through Bi,4 (3.6.5.5.1.2, 3.6.5.5.2.2 and 3.6.7.2.2.4). . ce point A stalled in this GBAS ground subsystem. Coding: 0 GBAS installed with 2 reference receivers S reference receivers installed in this GBAS ground subsystem is not applicable round accuracy designator letter the letter designator indicating the minimum signal-in-space accuracy performance provided by GBAS (3.6.7.1.1). oding: 0 accuracy designation A AS continuity integrity designator ( CID) numeric designator indicating the operational status of the GBAS. oding: 0 spare GCID 1 GCID 2 GCID 3 GCID 4 spare spare unhealthy P R : th ı standard deviation of a normal distrib the GBAS reference point (3.6.5.5.1, 3. h are the integrity parameters associa For the ith ranging source these parameter oding: 1000 0000 Reference receiver was not used to compute the pseudo-range correction C 3.6.4.3 Type message AS related data Type 2 message shall identify the location of the GBAS referen at which the corrections provided by the GBAS apply and shall give other GBAS-related data (Table B-71). GBAS-related data parameters shall be as follows: Note Additional data bloc s may be included in the Type message Additional data bloc and additional data bloc are defined In the future other additional data bloc s may be defined Data bloc s through are variable length nd may be appended to the message after additional data bloc in any order a S reference receivers the number of GNSS reference receivers in GBAS installed with 3 reference receivers GBAS installed with 4 reference receivers The number of GNS C accuracy designation B accuracy designation C spare C 23/11/06 A 2007/70/II. szám A endix Annex 10 — Aeronautical Communications Note The values of CID and are specified in order to ensure compatibility of e uipment with future AS pproach or AP cannot be initiated ocal magnetic variation the published magnetic variation at the GBAS reference point. ding: Positive value denotes east variation (clockwise from true north), Negative value denotes west variation (countercorrection associated eld of

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