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公开(公告)号：US10244429B2
公开(公告)日：2019-03-26
申请号：US15006609
申请日：2016-01-26
申请人： Airbus DS GmbH
摘要： This relates to a method for disseminating data in a navigation or communication system comprising several transmitters for signals, wherein a common frame structure is provided for the signals and each transmitter disseminates common data and transmitter-dedicated data with its transmitted signal, and wherein the method comprises the following acts to be executed by each one of the transmitters: receiving the common data encoded with a first encoding scheme; encoding transmitter-dedicated data onboard the transmitter with a second encoding scheme; assigning the encoded common data to a number of first frames of the frame structure provided for the signals and assigning the encoded transmitter-dedicated data to a number of second frames of the frame structure provided for the signals, wherein the second frames differ from the first frames; assembling a signal to be transmitted from the number of first and second frames; and transmitting the assembled signal.
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2.发明申请公开(公告)号：US20170364690A1
公开(公告)日：2017-12-21
申请号：US15621485
申请日：2017-06-13
申请人： Airbus DS GmbH
发明人： Jan Wendel , Alexander Ruegamer
摘要： A method for determining a position of a receiver via use of encrypted signals of a public regulated service. The method comprises transmitting PRN code chips to the receiver by an assistance server. The method further comprises storing the transmitted PRN code chips to be used before a designated time interval by the receiver. The method further comprises receiving the encrypted signals during the designated time interval by the receiver from satellites in line-of-sight to the receiver. The method further comprises determining the position of the receiver via use of the encrypted signals and the stored PRN code chips by the receiver.
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公开(公告)号：US10831907B2
公开(公告)日：2020-11-10
申请号：US15621485
申请日：2017-06-13
申请人： Airbus DS GmbH
发明人： Jan Wendel , Alexander Ruegamer
摘要： A method for determining a position of a receiver via use of encrypted signals of a public regulated service. The method comprises transmitting PRN code chips to the receiver by an assistance server. The method further comprises storing the transmitted PRN code chips to be used before a designated time interval by the receiver. The method further comprises receiving the encrypted signals during the designated time interval by the receiver from satellites in line-of-sight to the receiver. The method further comprises determining the position of the receiver via use of the encrypted signals and the stored PRN code chips by the receiver.
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公开(公告)号：US10396889B2
公开(公告)日：2019-08-27
申请号：US15253332
申请日：2016-08-31
申请人： Airbus DS GmbH
发明人： Jean-Jacques Floch , Francis Soualle , Jan Wendel
摘要： A wireless communication unit for compensating for Ionospheric group delay in a satellite communication system. The wireless communication unit comprises: a receiver configured to receive a multi-carrier signal from a satellite; and a processor coupled to the receiver. The processor is configured to: process the multi-carrier signal to produce a plurality of digital representations of individual carriers of the multi-carrier signal; estimate, from the plurality of digital representations of individual carriers of the multi-carrier signal, a Total Electron Content, TEC, value associated with a communication path between the satellite and the wireless communication unit through Earth's Ionosphere; and apply compensation for Ionospheric group delay subjected to the multi-carrier signal based on the determined TEC value.
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5.发明申请WIRELESS COMMUNICATION UNIT, INTEGRATED CIRCUIT, SATELLITE COMMUNICATION SYSTEM AND METHOD FOR COMPENSATING FOR IONOSPHERIC GROUP DELAY 审中-公开无线通信单元，集成电路，卫星通信系统和用于补偿离子群延迟的方法公开(公告)号：US20170070283A1
公开(公告)日：2017-03-09
申请号：US15253332
申请日：2016-08-31
申请人： Airbus DS GmbH
发明人： Jean-Jacques Floch , Francis Soualle , Jan Wendel
CPC分类号： H04B7/18532 , G01S19/07 , H04B7/185 , H04B7/18508 , H04L7/0016 , H04L7/0054
摘要： A wireless communication unit for compensating for Ionospheric group delay in a satellite communication system. The wireless communication unit comprises: a receiver configured to receive a multi-carrier signal from a satellite; and a processor coupled to the receiver. The processor is configured to: process the multi-carrier signal to produce a plurality of digital representations of individual carriers of the multi-carrier signal; estimate, from the plurality of digital representations of individual carriers of the multi-carrier signal, a Total Electron Content, TEC, value associated with a communication path between the satellite and the wireless communication unit through Earth's Ionosphere; and apply compensation for Ionospheric group delay subjected to the multi-carrier signal based on the determined TEC value.
摘要翻译： 一种用于补偿卫星通信系统中电离层组延迟的无线通信单元。 无线通信单元包括：被配置为从卫星接收多载波信号的接收机; 以及耦合到接收器的处理器。 所述处理器被配置为：处理所述多载波信号以产生所述多载波信号的各个载波的多个数字表示; 从多载波信号的各个载波的多个数字表示估计与卫星和无线通信单元之间通过地球电离层的通信路径相关联的总电子内容TEC; 并根据确定的TEC值对受多载波信号影响的电离层组延迟进行补偿。
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公开(公告)号：US09705667B2
公开(公告)日：2017-07-11
申请号：US15265569
申请日：2016-09-14
申请人： Airbus DS GmbH
IPC分类号： H04L7/033 , H04L27/152 , H03L7/02 , H03L7/07 , H03L7/22
摘要： A system for tracking a received signal with a subcarrier, the received signal representing a carrier signal modulated with a code signal and with a subcarrier signal. The system comprises independent and cooperatively operating loops: a phase lock loop tracking the carrier signal, a subcarrier lock loop tracking the subcarrier signal, and a delay lock loop tracking the code signal. The subcarrier lock loop comprises a first controllable oscillator and a first early-minus-late discriminator generating a control signal for the first controllable oscillator. The delay lock loop comprising a second controllable oscillator and a second arctan discriminator generating a control signal for the second controllable oscillator.
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公开(公告)号：US09503153B2
公开(公告)日：2016-11-22
申请号：US14844740
申请日：2015-09-03
申请人： Airbus DS GmbH
发明人： Jean-Jacques Floch , Francis Soualle , Jan Wendel
CPC分类号： H04B1/709 , G01S19/02 , H04B1/707 , H04B2001/70724 , H04J13/0022 , H04L27/2017 , H04L27/364
摘要： A method for generating a spread spectrum Gaussian Minimum Shift Keying (GMSK) signal includes obtaining a sequence of data symbols for a data channel, obtaining at least one first spread spectrum code comprising a first sequence of spread spectrum chips for the data channel, obtaining at least one second spread spectrum code comprising a second sequence of spread spectrum chips for a pilot channel, and generating a sequence of pre-modulation chips by combining the sequence of data symbols for the data channel with the spread spectrum chips of the first sequence of the at least one first spread spectrum code and data symbols for the pilot channel with the spread spectrum chips of the second sequence of the at least one second spread spectrum code to a combined sequence of chips. The method further includes assigning the chips of the combined sequence of chips to the transmission channels In-Phase I and Quadrature Q of the spread spectrum GMSK signal so that not more than two consecutive pre-modulation chips generated with the same spread spectrum code are transmitted in the same transmission channel I or Q, and performing GMSK modulation using the sequence of pre-modulation chips to generate a spread spectrum GMSK signal.
摘要翻译： 一种用于产生扩频高斯最小偏移键控（GMSK）信号的方法包括获得用于数据信道的数据符号序列，获得至少一个第一扩展频谱码，该第一扩展频谱码包括数据信道的第一扩展频谱序列， 至少一个第二扩频码包括用于导频信道的第二扩展频谱序列，并且通过将数据信道的数据符号序列与第一序列的第一序列的扩频码片组合来产生预调制码片序列 至少一个第一扩频码和用于具有至少一个第二扩频码的第二序列的扩展频谱码的导频信道的数据符号与码片的组合序列。 该方法还包括将组合的码片序列的码片分配给扩频GMSK信号的传输信道In-Phase I和Quadrature Q，以便发送不多于两个使用相同扩频码生成的连续预调制码片 在相同的传输信道I或Q中，并且使用预调制码片序列执行GMSK调制以产生扩频GMSK信号。
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8.发明授权Receiver for acquiring and tracking spread spectrum navigation signals with changing subcarriers 有权用于采用不断变化的副载波采集和跟踪扩频导航信号的接收机公开(公告)号：US09300354B2
公开(公告)日：2016-03-29
申请号：US14625280
申请日：2015-02-18
申请人： Airbus DS GmbH
发明人： Jean-Jacques Floch , Francis Soualle , Jan Wendel
CPC分类号： H04B1/713 , G01C21/20 , G01S19/24 , G01S19/29 , H04B1/707 , H04B1/70735 , H04B2201/70715 , H04W72/0453
摘要： A receiver acquires and tracks a spread spectrum navigation signal with changing subcarriers. The carrier signal changes between several subcarriers according to a hopping frequency and is modulated with data and a pseudorandom noise code signal. The receiver includes a carrier wipe off unit for down converting a received spread spectrum navigation signal from its carrier frequency to a baseband frequency, a frequency hopping wipe off unit for wiping off the hopping frequency from the received spread spectrum navigation signal, and a replica signal generation unit for generating at least one replica signal of the pseudorandom noise code signal for acquiring and tracking the received spread spectrum navigation signal after carrier wipe off. The generation of the at least one replica signal is performed depending on a sojourn time of the spread spectrum navigation signal at a subcarrier and a selected predetection integration time, and a correlation and integration unit correlates and integrates the received spread spectrum navigation signal after carrier wipe off with the at least one replica signal for the selected predetection integration time.
摘要翻译： 接收机利用变化的副载波获取和跟踪扩频导航信号。 载波信号根据跳频频率在几个子载波之间变化，并用数据和伪随机噪声码信号进行调制。 接收机包括用于将接收的扩频导航信号从其载波频率下变频到基带频率的载波擦除单元，用于从接收的扩频导航信号中擦除跳频的跳频擦除单元，以及复制信号 生成单元，用于生成伪随机噪声码信号的至少一个复制信号，用于在载波擦除之后获取和跟踪接收到的扩频导航信号。 根据子载波上的扩频导航信号的停留时间和选择的预选积分时间来执行至少一个复制信号的生成，并且相关和积分单元将载波擦除后的接收的扩频导航信号相关和积分 关闭所述至少一个复制信号用于所选择的预检测积分时间。
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