航径点记录介绍
This file will contain Path Point records for RNAV GPS/GLS Approach Procedures.
此文件将包含 RNAV GPS/GLS 进近程序的路径点记录。
4.1.28.1 航径点主记录
| 列 | 字段名(字节数) | Field Name | 定义编号 |
|---|---|---|---|
| 1 | 数据源类型(1) | Record Type | 5.2 |
| 2~4 | 客户/区域代码(3) | Customer/Area Code | 5.3 |
| 5 | 章代码(1) | Section Code | 5.4 |
| 6 | 空白(1) | Blank(Spacing) | |
| 7~10 | *机场四码(4) | *Airport Identifier | 5.6 |
| 11~12 | 情报区二码(2) | ICAO Code | 5.14 |
| 13 | 节代码(1) | Subsection Code | 5.5 |
| 14~19 | *进近程序代码(6) | Approach Procedure Ident | 5.10 |
| 20~24 | *跑道号(5)Note3 | Runway or Helipad Identifier*Note3 | 5.46 or 5.180 |
| 25~26 | *运行类别(2) | *Operation Type | 5.223 |
| 27 | 续记录号(1) | Continuation Record Number | 5.16 |
| 28 | 航径编号(1) | *Route Indicator | 5.224 |
| 29~30 | *SBAS服务商代号(2) | *SBAS Service Provider Identifier | 5.225 |
| 31~32 | *基准航径数据选择(2) | *Reference Path Data Selector | 5.256 |
| 33~36 | *基准航径代码(4) | *Reference Path Identifier | 5.257 |
| 37 | *进近性能编号(1) | *Approach Performance Designator | 5.258 |
| 38~48 | *LTP纬度(11) | *Landing Threshold Point Latitude | 5.267 |
| 49~60 | *LTP经度(12) | *Landing Threshold Point Longitude | 5.268 |
| 61~66 | *(LTP)高程异常(6) | *(LTP) Ellipsoid Height | 5.225 |
| 67~70 | *下滑角(4) | *Glide Path Angle | 5.226 |
| 71~81 | *FPAP纬度(11) | *Flight Path Alignment Point Latitude | 5.267 |
| 82~93 | *FPAP经度(12) | *Flight Path Alignment Point Longitude | 5.268 |
| 94~98 | *入口航径宽度(5)Note4 | Course Width at Threshold*Note4 | 5.228 |
| 99~102 | *偏置长度(4) | *Length Offset | 5.259 |
| 103~108 | *航径点的TCH(6) | *Path Point TCH | 5.265 |
| 109 | *TCH单位代码(1) | *TCH Units Indicator | 5.266 |
| 110~112 | *HAL(3) | *HAL | 5.263 |
| 113~115 | *VAL(3) | *VAL | 5.264 |
| 116~123 | SBAS FAS数据CRC提示码(8) | SBAS FAS Data CRC Remainder | 5.229 |
| 124~128 | 文件记录编号(5) | File Record No. | 5.31 |
| 129~132 | 生成周期(4) | Cycle Data | 5.32 |
Note 1: In the Path Point Record description, the field prefixed with * in the Field Name are those columns that have been determined as required for the data wrap for CRC calculations.
注 1：在路径点记录描述中，字段名称中以“*”为前缀的字段是那些已被确定为 CRC 计算的数据。
Note 2: In order to properly convert values and binary pack these fields for the CRC data wrap, refer to RTCA/DO-229C “Minimum Operational Performance Standards for Global Positioning System/Wide Area Augmentation System Airborne Equipment” for Final Approach Segment (FAS) Data Block and CRC standards.
注 2：为了正确转换数值并为循环冗余校验（CRC）数据封装对这些字段进行二进制打包，请参考 RTCA/DO-229C《全球定位系统/广域增强系统机载设备的最低运行性能标准》中关于最终进近段（FAS）数据块和 CRC 标准的内容。
Note 3: For procedures designed for helicopter options to a pad or point in space, the runway number is set to “00”, the runway letter is set to blank and the pad identifier and/or final approach course are carried in the Continuation Record.
注 3：对于为直升机到停机坪或空间点的选项设计的程序，跑道编号设置为“00”，跑道字母设置为空，停机坪标识符和/或最终进近航道在延续记录中携带。
Note 4: When the runway number is set to 00, then the Course Width field is ignored and the course width is 38 meters.
注 4：当跑道编号被设置为 00 时，那么航道宽度字段将被忽略，并且航道宽度为 38 米。
4.1.28.2 航路点续记录
| 列 | 字段名(字节数) | Field Name | 定义编号 |
|---|---|---|---|
| 1 | 数据源类型(1) | Record Type | 5.2 |
| 2~4 | 客户/区域代码(3) | Customer/Area Code | 5.3 |
| 5 | 章代码(1) | Section Code | 5.4 |
| 6 | 空白(1) | Blank(Spacing) | |
| 7~10 | *机场四码(4) | *Airport Identifier | 5.6 |
| 11~12 | 情报区二码(2) | ICAO Code | 5.14 |
| 13 | 节代码(1) | Subsection Code | 5.5 |
| 14~19 | *进近程序代码(6) | Approach Procedure Ident | 5.10 |
| 20~24 | *跑道号(5)Note3 | Runway or Helipad Identifier*Note3 | 5.46 or 5.180 |
| 25~26 | *运行类别(2) | *Operation Type | 5.223 |
| 27 | 续记录号(1) | Continuation Record Number | 5.16 |
| 28 | 应用类型(1) | Application Type | 5.91 |
| 29~34 | FPAP高程异常(6) | (FPAP) Ellipsoid Height | 5.225 |
| 35~40 | FPAP正高(6) | (FPAP) Orthometric Height | 5.227 |
| 41~46 | LTP正高(6) | (LTP) Orthometric Height | 5.227 |
| 47~56 | 进近类型识别(10) | Approach Type Identifier | 5.262 |
| 57~61 | GNSS通道号(5) | GNSS Channel Number | 5.244 |
| 62~71 | 空白(10) | Blank (Spacing) | |
| 72~74 | 直升机程序航径(3) | Helicopter Procedure Course | 5.269 |
| 75~123 | 空白(49) | Blank (Spacing) | |
| 124~128 | 文件记录编号(5) | File Record No. | 5.31 |
| 129~132 | 生成周期(4) | Cycle Data | 5.32 |
本文采用 署名-非商业性使用-相同方式共享 4.0 国际 许可协议，转载请注明出处。
