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1. 发明申请

WO2006040730A2 HIGH-CAPACITY LOCATION AND IDENTIFICATION SYSTEM FOR COOPERATING MOBILES WITH FREQUENCY AGILE AND TIME DIVISION TRANSPONDER DEVICE ON BOARD 审中-公开
标题翻译：与频率合成机器人和时间部分移动设备的高容量位置和识别系统
公开(公告)号：WO2006040730A2
公开(公告)日：2006-04-20
申请号：PCT/IB2005/053343
申请日：2005-10-11
申请人： Università degli Studi di Roma "Tor Vergata" , BARTOLINI, Simone , GALATI, Gaspare
发明人： BARTOLINI, Simone , GALATI, Gaspare
IPC分类号： G01S13/78
CPC分类号： G01S13/781 , G01S13/784
摘要： This invention allows Cooperating mobiles (ground vehicles, aircraft) to be located and identified by Multilateration and Automatic Dependent Surveillance - Broadcast (ADS -B) techniques using the frequency band and the format of the Secondary Surveillance Radar (SSR) signals in high traffic situations, such as those of large airports. Standard messages, transmitted by the mobile on the downlink channel, i.e. to a set of fixed receiving stations, and including the identification code, permit the location of the mobile by multiple time measurements (Multilateration) from a subset of the set of fixed receiving stations; when the message contains the position (GPS and, later, Galileo datum) the mobile may be located with the ADS-B when in view even of a few stations or of a single station. In order to overcome the problem that arises with high traffic, i.e. the superimposition of signals, called garbling, the present invention uses (a) a variable carrier frequency in the downlink channel (b) a time division scheme for the transmission from different mobiles . In this way, the system becomes suitable to the discrimination of overlapped signal; this is obtained by frequency analysis and, in the cases of high traffic in the downlink channel, by super resolution techniques. Moreover, the downlink transmission capacity increases with respect to the present state of the art respecting the bandwidth limits as defined by the international regulations. The present invention includes a signal generation and transmission system with selection of the carrier frequency (called frequency agility) and with selection of the transmission time for each mobile (called time agility or time division multiple access), as well as signal discrimination means in the receiving fixed station.
摘要翻译：本发明允许在高流量情况下使用频带和次级监视雷达（SSR）信号的格式，通过多频和自动相关监视 - 广播（ADS-B）技术来配置和识别合作手机（地面车辆，飞机），如大型机场。由移动台在下行链路信道上传输的标准消息，即一组固定的接收站，并且包括识别码，允许通过固定接收站集合的子集进行多个时间测量（多频）的移动站的位置 ; 当消息包含位置（GPS和以后的伽利略数据）时，即使在几个站点或单个站点中，移动站也可以与ADS-B一起定位。为了克服高业务量（即称为混乱的信号叠加）的问题，本发明使用（a）下行链路信道（b）中的可变载波频率用于从不同移动台传输的时分方案。以这种方式，该系统适合于重叠信号的辨别; 这是通过频率分析获得的，并且在下行链路信道中的高流量的情况下，通过超分辨率技术获得。而且，根据国际规定定义的带宽限制，下行链路传输容量相对于现有技术状态而增加。本发明包括具有载波频率选择（称为频率捷变）和选择每个移动（称为时间敏捷性或时分多址）的传输时间的信号产生和传输系统，以及信号识别装置接收固定电台。

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