Doc 9861-AN/460 MANUAL ON THE UNIVERSAL ACCESS TRANSCEIVER

cafchuyan · 发表于 2010-4-1 22:38:06

资料信息
资料名称	Doc 9861-AN/460 MANUAL ON THE UNIVERSAL ACCESS TRANSCEIVER
原创/转载	转载
语种	英语
格式	PDF
版本号	VERSIONS 4.1.1 and 2.1.1 dated 18 September 2006
大小	5.3M
描述	1 Introduction 1.1 Outline of the Manual This Manual contains Detailed Technical Specifications related to the implementation of the Standards and Recommended Practices (SARPs) for the Universal Access Transceiver (UAT). The UAT Implementation Manual provides additional guidance material. Section 1 presents the objectives and scope of this manual and provides definition of key terms used in the manual. Section 2 contains the specifications for the UAT ADS-B Message Data Blocks and formats. Section 3 contains the specifications for aircraft equipment and the ground transmitters including requirements for processing timing information Section 4 contains the criteria for successful message reception. Section 5 contains the interface requirements for aircraft equipment. 1.2 Objective and Scope The objective of this Manual (in conjunction with the UAT SARPs) is to define a set of internationally agreed detailed technical specifications for the UAT system that accomplish the following: 1. Establish a basis for RF compatibility of UAT with other systems operating in the 960 MHz to 1215 MHz frequency band (ACAS, DME, SSR, TACAN, JTIDS/MIDS, and GNSS E5/L5). 2. Establish a common basis for UAT intersystem interoperability across implementations manufactured and certified in different regions of the world. This Manual alone is not considered adequate for manufacture or certification of UAT equipment and is not a replacement for local certification guidance. 1.3 Definitions UAT: Universal Access Transceiver (UAT) is a broadcast data link operating on 978 MHz, with a modulation rate of 1.041667 Mbps. UAT ADS-B Message: A message broadcasted once per second by each aircraft to convey state vector and other information. UAT ADS-B messages can be in one of two forms depending on the amount of information to be transmitted in a given second: the Basic UAT ADS-B Message or the Long UAT ADS-B Message (see Section 12.4.4.1 for definition of each). UAT ground stations can support traffic information servicebroadcast (TIS-B) through transmission of individual ADS-B messages in the ADS-B segment of the UAT frame. UAT Ground Uplink Message: A message broadcasted by ground stations, within the ground segment of the UAT frame, to convey flight information such as text and graphical weather data, advisories, and other aeronautical information, to aircraft that are in the service volume of the ground station (see Section 12.4.4.2 for further details). Standard Receiver: A general purpose UAT receiver satisfying the minimum rejection requirements of interference from adjacent frequency Distance Measuring Equipment (DME) (see Section §12.3.2.2 for further details). High Performance Receiver: A UAT receiver with enhanced selectivity to further improve the rejection of adjacent frequency DME interference (see Section §12.3.2.2 for further details). Optimum Sampling Point: The optimum sampling point of a received UAT bit stream is at the nominal center of each bit period, when the frequency offset is either plus or minus 312.5 kHz. Power Measurement Point (PMP): A cable connects the antenna to the UAT equipment. The PMP is the end of that cable that attaches to the antenna. All power measurements are considered as being made at the PMP unless otherwise specified. The cable connecting the UAT equipment to the antenna is assumed to have 3 dB of loss. Successful Message Reception (SMR): The function within the UAT receiver for declaring a received message as valid for passing to an application that uses received UAT messages. See Section 4.0 of the Manual on the UAT Detailed Technical Specifications for a detailed description of the procedure to be used by the UAT receiver for declaring successful message reception. Pseudorandom Message Data Blocks: Several UAT requirements state that performance will be tested using pseudorandom message data blocks. Pseudorandom message data blocks should have statistical properties that are nearly indistinguishable from those of a true random selection of bits. For instance, each bit should have (nearly) equal probability of being a ONE or a ZERO, independent of its neighboring bits. There should be a large number of such pseudorandom message data blocks for each message type (Basic ADS-B, Long ADS-B or Ground Uplink) to provide sufficient independent data for statistical performance measurements. See Section 2.3 of the Manual on the UAT Detailed Technical Specifications for an example of how to provide suitable pseudorandom message data blocks. Service Volume: A part of the facility coverage where the facility provides a particular service in accordance with relevant SARPs and within which the facility is afforded frequency protection. Additional Acronyms and Definitions of terms are provided in Appendix A of the UAT Implementation Manual.
卷数	1
备注	仅供参考

zhaomingsheng00 · 发表于 2010-4-2 15:09:56

欲哭无泪啊我。谢谢楼主

cafchuyan · 发表于 2010-4-2 23:15:33

为什么啊？

f214216709 · 发表于 2010-4-7 12:11:14

1楼怎么了？

wlsh520 · 发表于 2010-4-7 12:26:58

为什么啊？

swimming · 发表于 2010-5-29 23:53:13

围观中

utopia · 发表于 2010-12-1 11:21:46

没有机务币啊……泪奔<div class=\"tal s3\">

utopia 于 2010-12-01 11:22 又补充说</div>Reoc 9861-AN/460 MANUAL ON THE UNIVERSAL ACCESS TRANSCEIVER
再赚一分行么……<div class=\"tal s3\">

utopia 于 2010-12-01 11:24 又补充说</div>Re:Doc 9861-AN/460 MANUAL ON THE UNIVERSAL ACCESS TRANSCEIVER
再赚一分行么……

帐号		自动登录	找回密码
密码			立即注册

[知识面拓展] Doc 9861-AN/460 MANUAL ON THE UNIVERSAL ACCESS TRANSCEIVER

实名认证

在线王

吉祥航空

成都航空职业技术学院