公开(公告)号：US08559491B2

公开(公告)日：2013-10-15

申请号：US12672633

申请日：2008-08-08

Applicant: Pascal Chevalier ,  François Delaveau ,  François Pipon

Inventor： Pascal Chevalier ,  François Delaveau ,  François Pipon

IPC: H04B17/00

CPC classification number: G01S7/292 ,  H04B17/27 ,  H04B17/336

Abstract: A method for measuring certain parameters of the impulse response of a propagation channel involving emitters and reflectors that are fixed or mobile, and for detecting and determining the parameters regarding the position and kinematics of the emitters and reflectors, or for auto-locating the reception system implementing the invention, in a system comprising N sensors receiving signals from the emitters or from the reflection on the reflectors. The method determines an ambiguity function which couples the spatial analysis and the delay-distance/Doppler-kinematic analysis, and determines at least one sufficient statistic Ĉ(l,m,K) corresponding to the correlation between the known signal s(kTe) corresponding to the complex envelope of the signal emitted and the output of a filter w(l,m) where l corresponds to a temporal assumption and m corresponds to a frequency assumption. The method also determines the values of the pair (l,m) by comparing the value of the statistic for the pair (l,m) with a threshold value.

Abstract translation: 一种用于测量涉及固定或移动的发射器和反射器的传播通道的脉冲响应的某些参数的方法，以及用于检测和确定关于发射器和反射器的位置和运动学的参数，或用于自动定位接收系统 在包括从发射器接收信号的N个传感器或反射器上的反射的系统中实现本发明。 该方法确定耦合空间分析和延迟距离/多普勒运动学分析的模糊函数，并且确定对应于已知信号s（kTe）对应的相关性的至少一个足够的统计量C（1，m，K） 到发射信号的复包络和滤波器w（l，m）的输出，其中l对应于时间假设，m对应于频率假设。 该方法还通过将对（l，m）的统计量的值与阈值进行比较来确定对（l，m）的值。

公开(公告)号：US08160119B2

公开(公告)日：2012-04-17

申请号：US12296767

申请日：2007-04-13

Applicant: Pascal Chevalier ,  François Van De Wiele ,  Christophe Donnet

Inventor： Pascal Chevalier ,  François Van De Wiele ,  Christophe Donnet

IPC: H04B1/00

CPC classification number: H04B1/715 ,  H04B7/08 ,  H04B7/0825

Abstract: A method of fighting interference in a frequency-hopping communication system is disclosed. The system has at least one main sensor and one or more auxiliary sensors. According to at least one embodiment, frequency-hopping signals are received. The frequency-hopping signals are arranged to include useful bands and one or more guard bands inserted between the useful bands, and a ratio of the useful bands to the guard bands being chosen according to a predetermined value of probability of interference interception. Signals of the inserted guard bands having a signal level greater than a predetermined threshold are selected. A set of spatial-filtering weightings are calculated according to a correlation matrix of noise plus jammers alone on the signals selected. Baseband signals of the received frequency-hopping signals are filtered by the set of the calculated spatial-filtering weightings.

Abstract translation: 公开了一种在跳频通信系统中抗干扰的方法。 该系统具有至少一个主传感器和一个或多个辅助传感器。 根据至少一个实施例，接收跳频信号。 跳频信号被布置为包括有用频带和插入有用频带之间的一个或多个保护频带，并且根据干扰拦截概率的预定值选择有用频带与保护频带的比率。 选择具有大于预定阈值的信号电平的插入的保护频带的信号。 根据所选择的信号上的噪声加干扰器的相关矩阵来计算一组空间滤波权重。 所接收的跳频信号的基带信号被所计算的空间滤波权重集合滤波。

公开(公告)号：US07824978B2

公开(公告)日：2010-11-02

申请号：US11516067

申请日：2006-09-06

Applicant: Alain Chantre ,  Bertrand Martinet ,  Michel Marty ,  Pascal Chevalier

Inventor： Alain Chantre ,  Bertrand Martinet ,  Michel Marty ,  Pascal Chevalier

IPC: H01L29/082

CPC classification number: H01L29/66242 ,  H01L21/8249 ,  H01L29/0817 ,  H01L29/36 ,  H01L29/41708 ,  H01L29/42304 ,  H01L29/456 ,  H01L29/7378

Abstract: A bipolar transistor with very high dynamic performance, usable in an integrated circuit. The bipolar transistor has a single-crystal silicon emitter region with a thickness smaller than 50 nm. The base of the bipolar transistor is made of an SiGe alloy.

Abstract translation: 具有非常高动态性能的双极晶体管，可用于集成电路。 双极晶体管具有厚度小于50nm的单晶硅发射极区域。 双极晶体管的基极由SiGe合金制成。

公开(公告)号：US20080226003A1

公开(公告)日：2008-09-18

申请号：US11816906

申请日：2006-02-20

Applicant: Pascal Chevalier ,  Pipon Francois ,  Francois Delaveau

Inventor： Pascal Chevalier ,  Pipon Francois ,  Francois Delaveau

IPC: H04L7/00

CPC classification number: H04L7/0054 ,  H04J3/0602 ,  H04L7/041 ,  H04L7/042

Abstract: A method of synchronizing a substantially rectilinear signal being propagated through an unknown channel, in the presence of unknown substantially rectilinear interferences, received by an array of N sensors, in which a known training sequence s(nT) is used comprising K symbols and sampled at the symbol rate T (s(nT), 0≦n≦{tilde over (K)}1), characterized in that, based on observations x((n+l/p)T) over the duration of the training sequence, where p=T/Te is an integer and Te the sampling period, a virtual observation vector X((n+l/p)T)=[x((n+l/p)T)T, x((n+l/p)T)†]T is defined, as well as a decision criterion or decision statistic taking into account the second-order non-circular nature of the interferences, by using the first and second correlation matrices of the virtual observation vector X((n+l/p)T).

Abstract translation: 一种使由N个传感器阵列接收的未知基本上直线干扰的未知信道传播的基本直线信号同步的方法，其中使用已知的训练序列s（nT），其包括K个符号，并在 符号率T（s（nT），0 <= n <= K1），其特征在于，在训练序列的持续时间内，基于观察值x（（n + 1 / p）T），其中p = T / Te是整数，Te是采样周期，虚拟观测矢量X（（n + 1 / p）T）= [x（（n + 1 / p）T） n + 1 / p）T）定义，以及考虑到二阶非循环性质的决策标准或决策统计量 通过使用虚拟观测向量X（（n + 1 / p）T）的第一和第二相关矩阵来进行干扰。

公开(公告)号：US20070063314A1

公开(公告)日：2007-03-22

申请号：US11523770

申请日：2006-09-19

Applicant: Pascal Chevalier ,  Alain Chantre

Inventor： Pascal Chevalier ,  Alain Chantre

IPC: H01L27/082

CPC classification number: H01L29/66242 ,  H01L29/0649 ,  H01L29/1004 ,  H01L29/66287 ,  H01L29/732 ,  H01L29/7378

Abstract: A bipolar transistor having a base region resting by its lower surface on a collector region and surrounded with a first insulating layer, a base contact conductive region in contact with an external upper peripheral region of the base region, a second insulating region in contact with an intermediary upper peripheral region of the base region, an emitter region in contact with the central portion of the base region. The level of the central portion is higher than the level of the intermediary portion.

Abstract translation: 一种双极晶体管，具有由集电极区域的下表面固定并被第一绝缘层包围的基极区域，与基极区域的外部上部周边区域接触的基极接触导电区域，与第一绝缘区域接触的第二绝缘区域 基极区域的中间上部周边区域，与基极区域的中心部分接触的发射极区域。 中央部分的高度高于中间部分的高度。

公开(公告)号：US20050215021A1

公开(公告)日：2005-09-29

申请号：US11091950

申请日：2005-03-28

Applicant: Alain Chantre ,  Pascal Chevalier

Inventor： Alain Chantre ,  Pascal Chevalier

IPC: H01L21/331 ,  H01L21/8222 ,  H01L29/10 ,  H01L29/737

CPC classification number: H01L29/66242 ,  H01L29/1004 ,  H01L29/7378

Abstract: A method forms a bipolar transistor in a semiconductor substrate of a first conductivity type. The method includes: forming on the substrate a single-crystal silicon-germanium layer; forming a heavily-doped single-crystal silicon layer of a second conductivity type; forming a silicon oxide layer; opening a window in the silicon oxide and silicon layers; forming on the walls of the window a silicon nitride spacer; removing the silicon-germanium layer from the bottom of the window; forming in the cavity resulting from the previous removal a heavily-doped single-crystal semiconductor layer of the second conductivity type; and forming in said window the emitter of the transistor.

Abstract translation: 一种方法在第一导电类型的半导体衬底中形成双极晶体管。 该方法包括：在衬底上形成单晶硅锗层; 形成第二导电类型的重掺杂单晶硅层; 形成氧化硅层; 在硅氧化物和硅层中开一个窗口; 在窗的壁上形成氮化硅间隔物; 从窗户的底部去除硅 - 锗层; 在先前去除的过程中形成在第二导电类型的重掺杂单晶半导体层的空腔中; 并在所述窗口中形成晶体管的发射极。

公开(公告)号：US06807517B2

公开(公告)日：2004-10-19

申请号：US10060249

申请日：2002-02-01

Applicant: Pascal Chevalier ,  Marc Chenu-Tournier ,  Claude Adnet ,  Pascal Larzabal

Inventor： Pascal Chevalier ,  Marc Chenu-Tournier ,  Claude Adnet ,  Pascal Larzabal

IPC: H04B1500

CPC classification number: H04L25/0228 ,  H04L25/0204

Abstract: A method for estimating one or more parameters of a propagation channel, with a priori knowledge of at least one signal, in a system having one or more sensors. The method includes correlating one or more signals received by the sensors with the known signal, sampling the received signals at a sampling period and selecting a number of samples per concatenation, and determining at least one parameter of the propagation channel which enables the most efficient reconstruction of the signals via a maximum likelihood method.

Abstract translation: 一种用于在具有一个或多个传感器的系统中估计具有至少一个信号的先验知识的传播信道的一个或多个参数的方法。 该方法包括将由传感器接收的一个或多个信号与已知信号相关联，在采样周期对接收到的信号进行采样，并且选择每个级联的采样数量，以及确定能够实现最有效重构的传播信道的至少一个参数 的信号通过最大似然法。

公开(公告)号：US06240098B1

公开(公告)日：2001-05-29

申请号：US09011477

申请日：1998-02-20

Applicant: Joël Thibault ,  Pascal Chevalier ,  François Pipon ,  Jean-Jacques Monot ,  Gilbert Multedo

Inventor： Joël Thibault ,  Pascal Chevalier ,  François Pipon ,  Jean-Jacques Monot ,  Gilbert Multedo

IPC: H04Q700

CPC classification number: H04W88/08 ,  H04B7/04 ,  H04B7/0617 ,  H04B7/086

Abstract: A method and apparatus for spatial multiplexing and demultiplexing of radio signals. A multichannel transmitter and receiver is integrated in a base station and coupled to an antenna array. Using digital radio signals containing previously known or non-Gaussian sequences and arranged in frames, the spatial information about each mobile unit is estimated on the basis of the signal received by the receiver for the reception and transmission frequencies. This is done by known sequences or by blind source separation methods. The respective paths of each mobile unit with the power above a predetermined threshold is isolated by spatial filtering in the presence of multiple channel paths in order to provide spatial demultiplexing. Simultaneously, the intended signal is transmitted in the direction of the main path of each mobile unit while protecting each mobile unit from signals transmitted in the direction of other mobile units by spatial filtering with cancelling constraints in order to provide spatial multiplexing.

Abstract translation: 一种用于无线电信号的空间复用和解复用的方法和装置。 多通道发射机和接收机集成在基站中并耦合到天线阵列。 使用包含先前已知的或非高斯序列并且被布置在帧中的数字无线电信号，基于由接收机接收的用于接收和发送频率的信号来估计关于每个移动单元的空间信息。 这是通过已知的序列或通过盲源分离方法完成的。 具有高于预定阈值的功率的每个移动单元的相应路径在存在多个信道路径的情况下通过空间滤波来隔离，以便提供空间解复用。 同时，在每个移动单元的主路径的方向上发送预期信号，同时通过具有消除约束的空间滤波来保护每个移动单元不受其它移动单元的方向的信号的影响，以提供空间复用。

公开(公告)号：US5870430A

公开(公告)日：1999-02-09

申请号：US773128

申请日：1996-12-26

Applicant: Fran.cedilla.ois Pipon ,  Pascal Chevalier ,  Pierre Vila

Inventor： Fran.cedilla.ois Pipon ,  Pascal Chevalier ,  Pierre Vila

IPC: H04L1/06 ,  H04L25/03 ,  H03H7/30

CPC classification number: H04L1/06 ,  H04L25/03057

Abstract: The process according to the invention consists, in order to reduce the number of coefficients of the filters of the spatial part and the temporal part connected to the output of the spatial part, in jointly adapting the coefficients of the filters of each part using an adaptive algorithm according to the paths selected on the basis of a determined criterion. The coefficients are periodically recalculated at the rate of the known symbols in the learning sequences in order to minimize the estimation error apparent between a response signal (d(t)) and the receiver output signal (z(t)).

Abstract translation: 根据本发明的方法包括，为了减少空间部分的滤波器的数量和连接到空间部分的输出的时间部分的系数，使用自适应的方式共同调整每个部分的滤波器的系数 根据确定的标准选择的路径的算法。 以学习序列中的已知符号的速率周期性地重新计算系数，以使响应信号（d（t））和接收器输出信号（z（t））之间显现的估计误差最小化。

公开(公告)号：US07453399B2

公开(公告)日：2008-11-18

申请号：US10428015

申请日：2003-05-02

Applicant: Anne Ferreol ,  Pascal Chevalier ,  Laurent Albera

Inventor： Anne Ferreol ,  Pascal Chevalier ,  Laurent Albera

IPC: G01S5/02 ,  G01S3/16 ,  G06F17/16

CPC classification number: G06K9/6243 ,  G06K9/0057 ,  H04B7/0848

Abstract: An antenna processing method for centered or potentially non-centered cyclostationary signals, comprises at least one step in which one or more nth order estimators are obtained from r-order statistics, with r=1 to n−1, and for one or more values of r, it comprises a step for the correction of the estimator by means of r-order detected cyclic frequencies. The method can be applied to the separation of the emitter sources of the signals received by using the estimator or estimators.

Abstract translation: 一种用于居中或潜在非中心周期平稳信号的天线处理方法，包括至少一个步骤，其中从R阶统计得到一个或多个n阶估计器，其中r = 1至n-1，以及对于一个或多个值 的r，它包括用于通过r阶检测的循环频率来校正估计器的步骤。 该方法可以应用于通过使用估计器或估计器来分离接收到的信号的发射源。