公开(公告)号：US11774572B2

公开(公告)日：2023-10-03

申请号：US16721773

申请日：2019-12-19

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Jérémy Barra ,  Olivier Debicki ,  Suzanne Lesecq ,  Nicolas Mareau ,  Laurent Ouvry ,  Mykhailo Zarudniev

IPC: G01S13/60 ,  B60R11/00 ,  G01S15/60 ,  G01S13/64 ,  G01S13/18 ,  G01S13/524 ,  G01S13/58 ,  G01S13/931 ,  G01S13/88

CPC classification number: G01S13/60 ,  B60R11/00 ,  G01S15/60 ,  G01S13/18 ,  G01S13/524 ,  G01S13/589 ,  G01S13/64 ,  G01S13/882 ,  G01S13/931

Abstract: A method for measuring, using a radar or sonar, the velocity with respect to the ground of a carrier moving parallel to the ground, includes the following steps: a) orienting the line of sight of the radar or sonar toward the ground; b) emitting a plurality of radar or sonar signals (P1-PN) that are directed toward the ground, and acquiring respective echo signals (E1-EN); c) processing the acquired echo signals so as to obtain, for one or more echo delay values, a corresponding Doppler spectrum; d) for the or at least one the echo delay value, determining a high cut-off frequency of the corresponding Doppler spectrum; and e) computing the velocity of the carrier with respect to the ground on the basis of the one or more high cut-off frequencies. A system allowing such a method to be implemented.

公开(公告)号：US09871556B2

公开(公告)日：2018-01-16

申请号：US15034384

申请日：2014-12-17

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Gilles Masson ,  Frédéric Hameau ,  Laurent Ouvry

IPC: H04B1/00 ,  H04B1/717 ,  H03B5/06 ,  H04L25/03 ,  H03B5/12 ,  H03C3/00

CPC classification number: H04B1/7172 ,  H03B5/06 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03C3/00 ,  H04B1/7174 ,  H04L25/03834

Abstract: An ultra-wideband pulse generator for radio communication with phase modulation at frequencies of multiple gigahertz comprises an oscillator formed by a pair of intersecting differential branches that have two outputs connected to an LC resonant load. The transmission of a UWB pulse is caused by the application of a supply current to the differential pair over a few nanoseconds. Two current-injecting branches are respectively connected to the outputs S and S′. The control of phase modulation consists in applying an injection current to a single branch to unbalance the differential pair at the start of the generation of the UWB pulse. Depending on the side from which the injection current is applied, the oscillation at the carrier frequency will initiate with one phase or an opposite phase.

公开(公告)号：US09847811B2

公开(公告)日：2017-12-19

申请号：US15034394

申请日：2014-12-17

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Gilles Masson ,  Frédéric Hameau ,  Laurent Ouvry

IPC: H04B1/707 ,  H04B1/717

CPC classification number: H04B1/7172 ,  H04B1/7174

Abstract: An ultra-wideband pulse generator, for radio communication at frequencies of 2 to 11 GHz comprises an oscillator providing an output signal at carrier frequency F0 followed by a radiofrequency switching transistor and a control circuit controlling the gate of the transistor to turn it on for duration T corresponding to the desired duration of a UWB pulse. The control circuit is arranged to successively apply, during the same UWB pulse, a first gate voltage turning the transistor on with first internal resistance value for a first part of duration T, a second gate voltage that turns the transistor on with second internal resistance value, different from the first, for a second part of duration T. These internal resistances cause the oscillation to be attenuated differently for duration T of the pulse, allowing the spectrum of the pulse to maintain it within the spectral templates imposed by the radio communication standards.

公开(公告)号：US09768827B2

公开(公告)日：2017-09-19

申请号：US15028647

申请日：2014-10-10

Applicant: Commissariat a l'energie atomique et aux energies alternatives

Inventor： Frederic Hameau ,  Gilles Masson ,  Laurent Ouvry

IPC: H04B1/7115 ,  H04B1/7183 ,  H04B1/7163 ,  H04B1/7075

CPC classification number: H04B1/7183 ,  H04B1/70758 ,  H04B1/7115 ,  H04B1/7163 ,  H04B2201/70707 ,  H04B2201/7073 ,  H04B2201/70979 ,  H04B2201/7163

Abstract: A UWB impulse receiver including an RF stage followed by a baseband processing stage. The baseband processing stage includes a Rake filter including a plurality of time fingers, each finger including an integrator of the baseband signal during an acquisition window, a control module, and a detection module estimating the received symbols from the integration results. During a synchronization phase, the control module drives respective positions of the acquisition windows associated with the different fingers, to scan at a reception interval, the RF stage only operating, in a course of the synchronization phase, during the plurality of acquisition windows.

公开(公告)号：US09231653B2

公开(公告)日：2016-01-05

申请号：US14435370

申请日：2013-10-10

Applicant: Commissariat a l'energie atomique et aux energies alternatives ,  BE SPOON

Inventor： Francois Dehmas ,  Gilles Masson ,  Laurent Ouvry

IPC: H04B1/707 ,  H04B1/7163 ,  H04B1/06 ,  H04L27/22

CPC classification number: H04B1/71637 ,  H04B1/06 ,  H04B1/7183 ,  H04B2001/6908 ,  H04B2201/70716 ,  H04L27/22

Abstract: A UWB receiver with time drift correction. After a frequency translation by a quadrature demodulator, a pulsed UWB signal received is integrated on successive time windows, and then sampled. A phase shift estimator determines a phase difference between samples separated by a multiple of the sampling period approaching the period of the pulses of the signal. A controller deduces from this phase difference a time offset to be applied to integrators to synchronize the receiver on the signal received.

Abstract translation: 具有时间漂移校正的UWB接收机。 在通过正交解调器进行频率转换之后，接收的脉冲UWB信号被集成在连续的时间窗口上，然后被采样。 相移估计器确定由接近信号脉冲周期的采样周期的倍数分开的采样之间的相位差。 控制器从该相位差中推导出将要应用于积分器的时间偏移，以使接收器同步接收到的信号。

公开(公告)号：US20150280758A1

公开(公告)日：2015-10-01

申请号：US14435338

申请日：2013-10-10

Applicant: Commissariat a l'energie atomique et aux energies alternatives ,  BE SPOON

Inventor： Laurent Ouvry ,  Francois Dehmas ,  Frederic Hameau ,  Gilles Masson

IPC: H04B1/06 ,  H04L5/00 ,  H04L12/807 ,  H04L27/26 ,  H04L12/815

CPC classification number: H04B1/06 ,  H04B1/69 ,  H04B1/7183 ,  H04B2001/6908 ,  H04L5/0005 ,  H04L27/2647 ,  H04L47/225 ,  H04L47/27

Abstract: A pulsed multi-channel UWB receiver. The receiver includes a first stage translating a received signal into baseband or at an intermediate frequency, a second stage carrying out quadrature mixing on the in-phase and quadrature channels of the first stage, a third stage carrying out an integration on a time window of the signals from the second stage, and a fourth stage carrying out a combination of the integration results from the third stage to provide the real part and the imaginary part of the modulation symbol. The receiver is configurable according to the receiving channel and processing type selected.

Abstract translation: 脉冲多通道UWB接收机。 接收机包括将接收到的信号转换为基带或中频的第一级，在第一级的同相和正交信道上执行正交混合的第二级，在第一级的时间窗上进行积分的第三级 来自第二级的信号，以及执行来自第三级的积分结果的组合以提供调制符号的实部和虚部的第四级。 接收机可根据所选的接收信道和处理类型进行配置。

公开(公告)号：US20160269075A1

公开(公告)日：2016-09-15

申请号：US15034394

申请日：2014-12-17

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Gilles Masson ,  Frederic Hameau ,  Laurent Ouvry

IPC: H04B1/717

CPC classification number: H04B1/7172 ,  H04B1/7174

Abstract: An ultra-wideband pulse generator, for radio communication at frequencies of 2 to 11 GHz comprises an oscillator providing an output signal at carrier frequency F0 followed by a radiofrequency switching transistor and a control circuit controlling the gate of the transistor to turn it on for duration T corresponding to the desired duration of a UWB pulse. The control circuit is arranged to successively apply, during the same UWB pulse, a first gate voltage turning the transistor on with first internal resistance value for a first part of duration T, a second gate voltage that turns the transistor on with second internal resistance value, different from the first, for a second part of duration T. These internal resistances cause the oscillation to be attenuated differently for duration T of the pulse, allowing the spectrum of the pulse to maintain it within the spectral templates imposed by the radio communication standards.

Abstract translation: 用于频率为2至11GHz的无线电通信的超宽带脉冲发生器包括振荡器，其以载波频率F0跟随射频开关晶体管提供输出信号，控制电路控制晶体管的栅极使其持续时间 T对应于UWB脉冲的期望持续时间。 控制电路被布置成在相同的UWB脉冲期间，连续地施加第一栅极电压，其以第一部分持续时间T的第一内部电阻值接通晶体管，第二栅极电压使第二内部电阻值 ，与第一部分不同，持续时间T的第二部分。这些内部电阻导致振荡在脉冲的持续时间T下被不同地衰减，允许脉冲的频谱将其保持在由无线电通信标准施加的频谱模板内 。

公开(公告)号：US09246537B2

公开(公告)日：2016-01-26

申请号：US14435283

申请日：2013-10-10

Applicant: Commissariat a l'energie atomique et aux energies alternatives ,  BE SPOON

Inventor： Francois Dehmas ,  Gilles Masson ,  Laurent Ouvry

IPC: H04B1/69 ,  H04B1/06

CPC classification number: H04B1/69 ,  H04B1/06 ,  H04B1/7183 ,  H04B2001/6908 ,  H04B2201/71634

Abstract: A method for determining arrival time of a UWB pulse at a receiver. When a pulse is modulated at an RF frequency, the receiver includes a quadrature demodulator, a first correlating stage for correlating the in-phase signal with the first and second signals of an orthogonal base on a time window and a second correlating stage for correlating the quadrature signal with the first and second signals of the orthogonal base on the same window, a phase estimator estimating the phase of the signal received in the orthogonal base from the correlation results of the first and/or second correlating stage(s), and a computing device determining the arrival time from the phase thus estimated.

Abstract translation: 一种用于确定UWB脉冲到接收机的到达时间的方法。 当以RF频率调制脉冲时，接收机包括正交解调器，用于将同相信号与时间窗上的正交基的第一和第二信号相关的第一相关级和用于使 相位估计器根据第一和/或第二相关级的相关结果估计在正交基底中接收的信号的相位，以及一个相位估计器， 计算装置确定从这样估计的相位的到达时间。

公开(公告)号：US09438307B2

公开(公告)日：2016-09-06

申请号：US14739072

申请日：2015-06-15

Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives

Inventor： Francois Dehmas ,  Laurent Ouvry ,  Manuel Pezzin

IPC: H04B1/7075 ,  H04B14/04 ,  H04B1/7163 ,  H04B1/7183 ,  H04L5/00

CPC classification number: H04B1/7075 ,  H04B1/71637 ,  H04B1/7183 ,  H04B14/04 ,  H04L5/0023

Abstract: A robust time shift tracking UWB receiver. After translating in baseband by a quadrature demodulator, the received UWB pulsed signal is integrated on successive time windows, and then sampled. The complex samples are then correlated with a coding sequence from the transmitter and then transmitted on the one hand to a phase estimator and a demodulating/detecting module. The latter estimates the symbol emitted and provides it to the estimator which removes the modulation effect for estimating, at each time-symbol, the phase of the complex samples. A phase rotation follow-up module determines a compensated phase rotation and a non-compensated phase rotation from a reference instant. Controlling means deduce from the non-compensated phase rotation a time offset to be applied to the integration windows.

Abstract translation: 鲁棒的时移跟踪UWB接收机。 在通过正交解调器在基带中翻译之后，接收到的UWB脉冲信号被集成在连续的时间窗口上，然后被采样。 然后将复样本与来自发射机的编码序列相关，然后一方面传输到相位估计器和解调/检测模块。 后者估计发射的符号并将其提供给估计器，该估计器消除了在每个时间符号处估计复数样本的相位的调制效应。 相位旋转跟随模块从参考时刻确定补偿相位旋转和非补偿相位旋转。 控制装置从非补偿相位旋转推导应用于积分窗口的时间偏移量。

公开(公告)号：US09236894B2

公开(公告)日：2016-01-12

申请号：US14435338

申请日：2013-10-10

Applicant: Commissariat a l'energie atomique et aux energies alternatives ,  BE SPOON

Inventor： Laurent Ouvry ,  Francois Dehmas ,  Frederic Hameau ,  Gilles Masson

IPC: H04B1/06 ,  H04L27/26 ,  H04L12/815 ,  H04L12/807 ,  H04L5/00

CPC classification number: H04B1/06 ,  H04B1/69 ,  H04B1/7183 ,  H04B2001/6908 ,  H04L5/0005 ,  H04L27/2647 ,  H04L47/225 ,  H04L47/27

Abstract: A pulsed multi-channel UWB receiver. The receiver includes a first stage translating a received signal into baseband or at an intermediate frequency, a second stage carrying out quadrature mixing on the in-phase and quadrature channels of the first stage, a third stage carrying out an integration on a time window of the signals from the second stage, and a fourth stage carrying out a combination of the integration results from the third stage to provide the real part and the imaginary part of the modulation symbol. The receiver is configurable according to the receiving channel and processing type selected.

Abstract translation: 脉冲多通道UWB接收器。 接收机包括将接收到的信号转换为基带或中频的第一级，在第一级的同相和正交信道上执行正交混合的第二级，在第一级的时间窗上进行积分的第三级 来自第二级的信号，以及执行来自第三级的积分结果的组合以提供调制符号的实部和虚部的第四级。 接收机可根据所选的接收信道和处理类型进行配置。