减速宽波介质上ATIS信息组的传送标准

[中文适用范围]： 该 SAE 标准概述了通过各种带宽缩减媒体 (BRM) 发送高级旅行者信息服务 (ATIS) 消息的美国标准。它指定了此类数据消息在位级别的“无线”格式和方法。该方法允许与其他非 ATIS 数据服务合作共享媒体的总带宽。它允许进一步扩展到其他 ATIS 消息，例如运输时间表和天气使用。它使用公共消息目录来将属于本规范主题的消息与其他消息区分开来。它建立在波形中性的概念之上，因为它可以由无线数据服务交付中常见的各种媒体托管（尽管它对于有线应用也很有用）。该消息集通过特定于每个媒体的格式化过程合并到每个媒体（“主机媒体”）中。图 1 显示了此过程的图形概述。主机介质上可用的容量和服务在容量、存在的其他服务、单向或双向使用、使用适用性以及各种商业方面方面可能存在很大差异这里不考虑。本文档分为五个主要部分。第一部分提供了理解消息编码过程本身所需的各种元素的概念背景（第 4、5、6 章）。第二部分包含消息和消息中数据元素的精确定义（第 7、8、9 章）。第三部分为接收器和编码器制造商提供实施建议和评论（第 10、11 章）。第四部分包含标准的各种消息编码中使用的常量表（第 12 章）。附录中的第五部分是使用真实数据实现的消息集的说明性示例。最后，一组附录 SAE J2369-1 提供了有关如何在各种主机介质上实施本文档的信息。 [外文原描述]： This SAE Standard outlines the US standard for sending Advanced Traveler Information Services (ATIS) messages over various Bandwidth Reduced Media (BRM). It specifies the “over the air” format and method for such data messages at a bit level. The methodology allows a cooperative sharing of the media’s total bandwidth with other non-ATIS data services. It allows for further expansion to other ATIS messages such as transit schedules and weather use. It uses a common directory of messages to divide out those messages which are the subject of this specification from others.It is built upon the concept of “waveform neutrality” in that it can be hosted by a wide variety of media often found in the delivery of wireless data services (although it is also useful for wire line applications). This message set is incorporated into each medium (“host medium”) by a formatting process specific to each media. A graphical overview ofthis process is shown in Figure 1 . The capacity and services available over the host media can vary considerably in terms of capacity, other services present, one way or two way use, suitability for use, and a variety of commercial aspects not considered here.This document is divided into five primary sections. The first provides a conceptual background of various elements required to understand the message encoding process itself ( chapters 4 , 5 , 6 ). The second section contains precise definitions of the messages and data elements in the messages ( chapters 7 , 8 , 9 ). The third section provides implementation advice and comments for both receiver and encoder manufacturers ( chapters 10 , 11 ). The fourth section contains tables of constants used in various message encodings of the standard ( chapter 12 ). A 5th section, contained in the appendices, is an illustrative example of the message sets implemented with real data. Finally, a set of Appendices, SAE J2369-1 provides information regarding how to implement this document on a variety of host media.Cross Reference: J1761,J2353_201906,J2354_201906,J2355,J2366,J2366/1L,J2367,J2374