公开(公告)号：EP2957084A1

公开(公告)日：2015-12-23

申请号：EP14704317.8

申请日：2014-02-07

申请人： Newtec cy.

发明人： DELARUELLE, Daniel

IPC分类号： H04L27/34 ,  H04L1/00

CPC分类号： H04L27/3411 ,  H04L1/0057 ,  H04L1/0071 ,  H04L27/36 ,  H04L27/38

摘要： The present invention relates to a method of digital modulation comprising: generating a stream of modulation symbols in order to produce a modulated signal, where said modulation symbols belong to a multi- ring digital signal constellation (200, 201, 202, 203), said multi-ring digital signal constellation having all signal points placed on at least two concentric rings (200, 201, 202, 203), whereby • a) the total number of signal points is larger than 8, • b) at least one ring has unequally spaced points (201), and • c) said at least one ring with unequally spaced signal points is constructed to form together with at least one neighbouring ring a subset of neighbouring rings (202), whereby each signal point of said subset has a unique angular coordinate modulo 2
π and whereby the angular spacing of the signal points of said subset is uniform (Δ
θ ).

公开(公告)号：EP1287580A1

公开(公告)日：2003-03-05

申请号：EP01935837.3

申请日：2001-05-23

申请人： Newtec cy.

发明人： VERSTRAETEN, Guy

IPC分类号： H01P1/213

CPC分类号： H01P1/161 ,  H01P1/213 ,  H01Q5/47 ,  H01Q13/0208 ,  H01Q13/0258 ,  H01Q13/24

摘要： A dual band, higher and lower frequency range transducer with a circular coaxial waveguide feed is described having a first junction for connection of a lower frequency range outer waveguide of the coaxial waveguide feed to at least two rectangular or ridge waveguides offset from the longitudinal axis of the transducer and a second junction for connection of the at least two rectangular or ridge waveguides to a further waveguide. A third junction is provided for connecting an inner waveguide of the coaxial waveguide feed to a higher frequency range waveguide. The transducer comprises at least first and second parts joined across a first plane substantially perpendicular to the longitudinal axis and including at least a portion of the higher frequency range waveguide extending within the first plane of the join. A seal such as an 'O' ring seal may be placed easily in the plane of the join thus preventing moisture ingress. Similarly, a feed horn and input and output ports may be sealingly attached to the first and second parts of the transducer. The first and second junctions are preferably impedance matched turnstile junctions.

公开(公告)号：EP3206354A1

公开(公告)日：2017-08-16

申请号：EP17164530.2

申请日：2014-02-07

申请人： Newtec cy.

发明人： DELARUELLE, Daniel

IPC分类号： H04L27/34 ,  H04L1/00

CPC分类号： H04L27/3411 ,  H04L1/0057 ,  H04L1/0071 ,  H04L27/36 ,  H04L27/38

摘要： The present invention relates to a receiver for a digital communication system comprising a demodulator arranged for demodulating a received signal into a sequence of digital symbols, wherein the digital symbols belong to a multi-ring digital signal constellation (200, 201, 202, 203), which has all signal points placed on at least two concentric rings (200, 201, 202, 203), whereby:
a) the total number of signal points is larger than 8,
b) at least one ring has unequally spaced points (201), and
c) the at least one ring with unequally spaced signal points is constructed to form together with at least one neighbouring ring a subset of neighbouring rings (202), whereby each signal point of the subset has a unique angular coordinate modulo 2π and whereby the angular spacing of the signal points of the subset is uniform.

摘要翻译： 数字通信系统的接收机本发明涉及一种用于数字通信系统的接收机，它包括一个解调器，用于将接收信号解调为一系列数字符号，其中数字符号属于多环数字信号星座（200,201,202,203） ，其具有置于至少两个同心环（200,201,202,203）上的所有信号点，由此：a）信号点的总数大于8，b）至少一个环具有不等间隔的点（201 ），并且c）具有不等间隔信号点的至少一个环被构造为与至少一个相邻环一起形成相邻环的子集（202），由此该子集的每个信号点具有唯一的角坐标2π模并且 由此该子集的信号点的角度间隔是均匀的。

公开(公告)号：EP1989752B1

公开(公告)日：2010-10-13

申请号：EP06706498.0

申请日：2006-01-31

申请人： Newtec cy.

发明人： SANDERS, Philip

IPC分类号： H01P1/161

CPC分类号： H01P1/161

公开(公告)号：EP1989752A1

公开(公告)日：2008-11-12

申请号：EP06706498.0

申请日：2006-01-31

申请人： Newtec cy.

发明人： SANDERS, Philip

IPC分类号： H01P1/161

CPC分类号： H01P1/161

摘要： A multi-band transducer is described incorporating a coaxial waveguide interface for use with a multi-band feed and incorporating bent shaped probes yielding all-planar interfaces in microstrip for all frequency ranges and suitable for mass production. Hybrids can be incorporated for linear or circular polarization applications.

公开(公告)号：EP0930744A1

公开(公告)日：1999-07-21

申请号：EP98100018.5

申请日：1998-01-02

申请人： NewTec CY N.V.

发明人： Breynaert, Dirk ,  Delaruelle, Daniel

IPC分类号： H04L5/02

CPC分类号： H04L5/023

摘要： The present invention includes a telecommunications system including a plurality of transmitters (20), each transmitter (20) transmitting a modulated signal on one carrier of a set of equally spaced carriers at any one time, said transmitters (20) being co-ordinated by frequency division multiplexing and synchronised to produce an orthogonal frequency division multiplex (OFDM) signal at a receiver (10).
The present invention also includes a method of operating a telecommunication system, comprising the steps of:

transmitting from each transmitter of a plurality of transmitters a modulated data stream on one carrier of a set of equally spaced carriers at any one time, co-ordinating and synchronising the transmissions of the plurality of transmitters so as to produce an orthogonal frequency multiplexed (OFDM) signal at a receiver.

A transmitter (20) is also described for transmitting a modulated data stream on one carrier of a set of equally spaced carriers at any one time, the spacing of said carriers being at the baud rate or a multiple thereof comprising:

a modulator (31) for modulation of a data stream,
a means (31) for sequentially hopping between at least two of said carriers.

The present invention also includes satellite receiver for receiving an orthogonal frequency multiplexed (OFDM) signal including a set of equally spaced carriers, each carrying a modulated data stream, the satellite receiver including a demodulator for demodulating the OFDM signal.
The modulation of the data stream in accordance with the present invention is preferably substantially constant envelope.

摘要翻译： 本发明包括一个包括多个发射机（20）的电信系统，每个发射机（20）在任何一个时刻在一组等距载波的一个载波上传送调制信号，所述发射机（20）由 频分复用并被同步以在接收机（10）处产生正交频分复用（OFDM）信号。 本发明还包括一种操作电信系统的方法，包括以下步骤：在多个发射机的每个发射机上，在一个等距间隔的载波集合的一个载波上发射调制的数据流，协调和 同步多个发射机的传输，以便在接收机处产生正交频分复用（OFDM）信号。 还描述了发射机（20），用于在任何一个时间在一组等距载波的一个载波上发射调制数据流，所述载波的间隔处于波特率或其倍数，包括：调制器（31） 用于数据流的调制，用于在至少两个所述载波之间顺序跳频的装置（31）。 本发明还包括用于接收正交频分复用（OFDM）信号的卫星接收机，所述正交频分复用（OFDM）信号包括一组等间隔的载波，每个载波携带调制的数据流，所述卫星接收机包括用于解调OFDM信号的解调器。 根据本发明的数据流的调制优选地是基本恒定的包络。

公开(公告)号：EP3579458A1

公开(公告)日：2019-12-11

申请号：EP18176340.0

申请日：2018-06-06

申请人： NEWTEC CY

发明人： BREYNAERT, Dirk ,  CHRISTOPOULOS, Dimitrios

IPC分类号： H04B7/204

摘要： The present invention relates to a satellite communication system arranged for consecutively illuminating a plurality of contours on earth and comprising :
- a transmitter device arranged for generating a signal to be transmitted and comprising
* one or more hopping framers each arranged for receiving a sequence of bits and for organizing said sequence into a hopping frame according to a hopping plan indicating an order in which said plurality of contours is to be illuminated,
* encoding means per hopping framer for mapping said hopping frame to a sequence of digital symbols,
* modulation means per hopping framer arranged for receiving said sequence of digital symbols and for modulating said digital symbols on a waveform at a symbol rate, thereby obtaining a modulated signal to be transmitted, and for initiating transmission of said modulated signal at a time instant equal to a Start of Hopping Frame, SoHF, time instant, said modulation means being arranged for indicating to said hopping framer when a next hopping frame is needed, whereby said hopping framer is arranged for inserting dummy data if not sufficient bits are available in said sequence of bits when said next hopping frame is needed,

- a satellite comprising a beam hopping transponder arranged for receiving said modulated signal and for outputting a version of said modulated signal to an illumination circuit arranged in said satellite for steering illumination from one contour to another particular contour according to said hopping plan, said illumination of said one contour starting at a switching time instant,
- one or more receiver devices in said particular contour of said plurality of contours to be illuminated and arranged for receiving said output signal,
- a central controller having an established communication link with at least one of said receiver devices and arranged for receiving via an established link information on observed illumination transitions, said central controller comprising computation means for computing updated timing information for aligning in time said transmitter device with said beam hopping transponder, based on said information on observed illumination transitions and being in connection with said transmitter device for passing said updated timing information to said transmitter device.

公开(公告)号：EP3206354B1

公开(公告)日：2018-08-15

申请号：EP17164530.2

申请日：2014-02-07

申请人： Newtec cy.

发明人： DELARUELLE, Daniel

IPC分类号： H04L27/34 ,  H04L1/00

CPC分类号： H04L27/3411 ,  H04L1/0057 ,  H04L1/0071 ,  H04L27/36 ,  H04L27/38

摘要： The present invention relates to a receiver for a digital communication system comprising a demodulator arranged for demodulating a received signal into a sequence of digital symbols, wherein the digital symbols belong to a multi-ring digital signal constellation (200, 201, 202, 203), which has all signal points placed on at least two concentric rings (200, 201, 202, 203), whereby: a) the total number of signal points is larger than 8, b) at least one ring has unequally spaced points (201), and c) the at least one ring with unequally spaced signal points is constructed to form together with at least one neighbouring ring a subset of neighbouring rings (202), whereby each signal point of the subset has a unique angular coordinate modulo 2À and whereby the angular spacing of the signal points of the subset is uniform.

公开(公告)号：EP2619924B1

公开(公告)日：2017-06-28

申请号：EP11781457.4

申请日：2011-09-19

申请人： Newtec Cy N.V.

发明人： ROLLE, Alain ,  BREYNAERT, Dirk ,  DELARUELLE, Daniel

IPC分类号： H04B7/185

CPC分类号： H04W72/0446 ,  H04B7/18528 ,  H04B7/2121

公开(公告)号：EP2954612B1

公开(公告)日：2017-03-08

申请号：EP14704101.6

申请日：2014-01-31

申请人： Newtec Cy N.V.

发明人： SIMOENS, Frederik

IPC分类号： H04L27/36 ,  H03F1/32 ,  H03F3/24 ,  H04B1/04 ,  H04L27/34

CPC分类号： H04L27/367 ,  H03F1/3282 ,  H03F3/24 ,  H04B1/0475 ,  H04L27/3411