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1. 发明申请

WO2007071056A1 METHOD AND SYSTEM FOR ADAPTIVE DUPLICATED FILTERS AND INTERFERENCE CANCELLATION. 审中-公开
标题翻译：自适应滤波器和干扰消除的方法和系统。
公开(公告)号：WO2007071056A1
公开(公告)日：2007-06-28
申请号：PCT/CA2006/002106
申请日：2006-12-21
申请人： AXIOCOM INC. , MASSICOTTE, Daniel , AHMED-OUAMEUR, Messaoud , NOUGAROU, François
发明人： MASSICOTTE, Daniel , AHMED-OUAMEUR, Messaoud , NOUGAROU, François
IPC分类号： H04B1/10 , H04B1/69 , H04B7/216
CPC分类号： H04B1/7103 , H04B1/7107
摘要： A method and device substantially cancel at least Multiple Access Interference (MAI) and Inter-Symbol Interference (ISI) while detecting a received spread spectrum signal in a multi-user communication system. For that purpose, a plurality of stages are formed, each comprising processing the received spread spectrum signal through an interference cancelling function to produce an essentially MAI- and ISI-free signal, and processing the essentially MAI- and ISI-free signal through a reconstruct received spread spectrum signal function to produce a received spread spectrum signal essentially free from MAI and ISI. The plurality of stages are cascaded to successively process the spread spectrum signal and improve cancellation of MAI and ISI from the spread spectrum signal.
摘要翻译：一种方法和设备在多用户通信系统中检测到接收到的扩频信号的同时基本上至少消除多址干扰（MAI）和符号间干扰（ISI）。为此，形成多个级，每个级包括通过干扰消除功能来处理所接收的扩展频谱信号，以产生基本上无MAI和无ISI的信号，并通过重构来处理基本上无MAI和无ISI信号接收的扩频信号功能产生基本上不含MAI和ISI的接收扩频信号。多级级联以连续地处理扩频信号，并且从扩展频谱信号改善MAI和ISI的消除。

2. 发明申请

WO2005099130A1 METHOD AND SYSTEM FOR MULTI-USER CHANNEL ESTIMATION IN DS-CDMA SYSTEMS 审中-公开
标题翻译： DS-CDMA系统中多用户信道估计的方法和系统
公开(公告)号：WO2005099130A1
公开(公告)日：2005-10-20
申请号：PCT/CA2005/000543
申请日：2005-04-08
申请人： AXIOCOM INC. , AHMED-OUAMEUR, Messaoud , MASSICOTTE, Daniel
发明人： AHMED-OUAMEUR, Messaoud , MASSICOTTE, Daniel
IPC分类号： H04B7/204
CPC分类号： H04L25/0204 , H04B1/7105 , H04B17/3913 , H04L25/0212 , H04L25/025
摘要： The method and system for multi-user channel estimation in a multi-access network comprises: providing a communication signal (r i ) providing an estimated communication signal Formula (I) generated using a spreading code signal (C i ), an information sequence signal (B i ) and a predicted composite channel impulse response signal Formula (II); comparing the communication signal (r i ) to the estimated communication signal Formula (I) to provide an error signal (ε i ); and generating an estimated composite channel impulse response signal Formula (III) using the error signal (ε i ), the spreading code signal (C i ) and the information sequence signal (B i ); the predicted composite channel impulse response signal Formula (II) providing the multi-user channel estimation. The proposed method, which is based on a LMS like algorithm, is an efficient and low complexity method allowing estimating and tracking even fast times varying multi-path channels. Instantaneously, the composite channel impulse response is computed and estimates of all possible path energies are computed to be used as an indicator of the significant paths (delays).
摘要翻译：用于多接入网中多用户信道估计的方法和系统包括：提供提供使用扩展码信号（Ci）产生的估计通信信号公式（I）的通信信号（ri），信息序列信号（Bi ）和预测的复合信道脉冲响应信号公式（II）; 将通信信号（ri）与估计通信信号公式（I）进行比较以提供误差信号（εi）; 以及使用所述误差信号（εi），所述扩展码信号（Ci）和所述信息序列信号（Bi）来生成估计的复合信道脉冲响应信号公式（III）。提供多用户信道估计的预测复合信道脉冲响应信号公式（II）。所提出的基于LMS的算法的方法是一种有效且低复杂度的方法，允许估计和跟踪甚至快速变化的多径信道。瞬时地，计算复合信道脉冲响应，并计算所有可能的路径能量的估计，以用作有效路径（延迟）的指标。

3. 发明申请

WO2004040789A3 CASCADE FILTER RECEIVER FOR DS-CDMA COMMUNICATION SYSTEMS 审中-公开
标题翻译：用于DS-CDMA通信系统的级联滤波器接收器
公开(公告)号：WO2004040789A3
公开(公告)日：2004-07-22
申请号：PCT/CA0301650
申请日：2003-10-29
申请人： AXIOCOM INC , MASSICOTTE DANIEL , DAHMANE ADEL-OMAR
发明人： MASSICOTTE DANIEL , DAHMANE ADEL-OMAR
IPC分类号： H04B1/707 , H04L25/03
CPC分类号： H04B1/7105 , H04B1/71075 , H04L25/03305 , H04L25/03331 , H04L2025/03464 , H04L2025/03484 , H04L2025/03509 , H04L2025/03617
摘要： A description of an adaptable multiuser processing unit applied to Direct-Sequence Code Division Multiple Access (DS-CDMA) is disclosed. The adaptable multiuser processing unit consists of cascade filters where each filter is adapted independently. The adaptation of a first filter is based on the error between the output of the first filter and a desired signal, in the same way for the other filters. The adaptation is realized follow a direct, without channel identification, or indirect, with channel identification, procedure. The first filter receives the input signal in Baud (1/T) or Fractionally (k/T) spaced and the last filter gives to the MUD output the decisions on the symbols estimated for each users. A decision feedback may be applied to the input of each filter such as the conventional Decision Feedback Equalizer (DFE). In more, each filter can be linear or nonlinear.
摘要翻译：公开了应用于直接序列码分多址（DS-CDMA）的可适应多用户处理单元的描述。自适应多用户处理单元由级联滤波器组成，其中每个滤波器都是独立调整的。第一个滤波器的自适应基于第一个滤波器的输出和所需信号之间的误差，对于其他滤波器也是如此。自适应是直接实现的，没有通道识别，或间接通道识别，程序。第一个滤波器以波特（1 / T）或分数（k / T）间隔接收输入信号，最后一个滤波器向MUD输出提供关于为每个用户估计的符号的决定。决策反馈可以应用于每个滤波器的输入，例如传统的判决反馈均衡器（DFE）。另外，每个滤波器可以是线性或非线性的。

4. 发明申请

WO2008089536A1 ANTI-COGGING APPARATUS FOR PERMANENT MAGNET ELECTRICAL MACHINES 审中-公开
标题翻译：永磁电机防抱死装置
公开(公告)号：WO2008089536A1
公开(公告)日：2008-07-31
申请号：PCT/CA2008/000078
申请日：2008-01-16
申请人： EOCYCLE TECHNOLOGIES INC. , BOUCHER, Bruno , ADAMS, Eric , CÔTÉ, Simon , MASSICOTTE, Daniel
发明人： BOUCHER, Bruno , ADAMS, Eric , CÔTÉ, Simon , MASSICOTTE, Daniel
IPC分类号： H02K1/06 , H02K21/02 , H02K7/00
CPC分类号： H02K29/03
摘要： The present invention provides cancellation of the cogging torque of a permanent magnet electrical machine using two sets of magnetic elements, one set being mechanically coupled to the stator and the other set being mechanically coupled to the rotor of the machine. At least one of the two set comprises permanent magnets and the magnetic elements of the other set can be made of permanent magnets or non-magnetized ferromagnetic materials such as soft iron. When the arrangement of the elements of the two sets are properly designed, magnetic attraction and repulsion forces between the magnetic elements of the two sets as the machine operates produces an anti-cogging torque that substantially cancels out the cogging torque of the machine.
摘要翻译：本发明提供了使用两组磁性元件来取消永久磁铁电机的齿槽转矩，一组机械耦合到定子，另一组机械联接到机器的转子。两组中的至少一个包括永磁体，另一组的磁性元件可以由永磁体或非铁磁铁磁材料（例如软铁）制成。当两组元件的布置被适当地设计时，作为机器操作的两组的磁性元件之间的磁吸引力和排斥力产生基本上抵消机器的齿槽转矩的抗齿槽转矩。

5. 发明申请

WO2004105264A3 SYSTEM FOR EQUALISATION USING PILOT CANCELLATION 审中-公开
标题翻译：使用引航取消均衡化的系统
公开(公告)号：WO2004105264A3
公开(公告)日：2005-09-22
申请号：PCT/CA2004000757
申请日：2004-05-21
申请人： AXIOCOM INC , MASSICOTTE DANIEL , DAHMANE ADEL-OMAR
发明人： MASSICOTTE DANIEL , DAHMANE ADEL-OMAR
IPC分类号： H04B1/707
CPC分类号： H04B1/7103 , H04B1/7105 , H04B2201/70701
摘要： An adaptive procedure that optimizes the parameters of a receiver filter such as a Multiuser Detection (MUD) applied to Direct-Sequence Code Division Multiple Access (DS-CDMA) is disclosed. This procedure takes into account the constraints imposed by the absence of training data sequences sent by the transmitter and required to adapt the filter parameters at the receiver. The adaptation consists in using two distinct data sequences transmitted through the same channel; one data sequence is transmitted as payload data and a second data sequence is transmitted as training data used to adapt the filter parameters at the receiver. Parameters of the receiver filter are adapted in presence of varying channels at the same time as the data information sequences are transmitted. The adaptation is realized following a mixed adaptation procedure based on a direct (without channel identification) and indirect (with channel identification) scheme. The invention is described for UMTS (Universal Mobile Telecommunications System) application in cellular communications system.
摘要翻译：公开了一种优化诸如应用于直接序列码分多址（DS-CDMA）的多用户检测（MUD）的接收机滤波器的参数的自适应过程。该过程考虑了由发射机发送的训练数据序列的不存在而施加的限制，并且需要在接收机处适配滤波器参数。适应包括使用通过相同信道传输的两个不同的数据序列; 作为有效载荷数据发送一个数据序列，作为训练数据发送第二数据序列，用于在接收机处适配滤波器参数。在发送数据信息序列的同时，接收机滤波器的参数适应存在变化的信道。基于直接（无信道识别）和间接（具有信道识别）方案的混合适配过程来实现适配。针对蜂窝通信系统中的UMTS（通用移动电信系统）应用描述了本发明。

6. 发明申请

WO2004105264A2 MIXED DIRECT-INDIRECT ADAPTATION PROCEDURE APPLIED TO RECEIVER FILTER 审中-公开
标题翻译：混合直接间接适应程序适用于接收器过滤器
公开(公告)号：WO2004105264A2
公开(公告)日：2004-12-02
申请号：PCT/CA2004/000757
申请日：2004-05-21
申请人： AXIOCOM INC. , MASSICOTTE, Daniel , DAHMANE, Adel-Omar
发明人： MASSICOTTE, Daniel , DAHMANE, Adel-Omar
IPC分类号： H04B1/707
CPC分类号： H04B1/7103 , H04B1/7105 , H04B2201/70701
摘要： An adaptive procedure that optimizes the parameters of a receiver filter such as a Multiuser Detection (MUD) applied to Direct-Sequence Code Division Multiple Access (DS-CDMA) is disclosed. This procedure takes into account the constraints imposed by the absence of training data sequences sent by the transmitter and required to adapt the filter parameters at the receiver. The adaptation consists in using two distinct data sequences transmitted through the same channel; one data sequence is transmitted as payload data and a second data sequence is transmitted as training data used to adapt the filter parameters at the receiver. Parameters of the receiver filter are adapted in presence of varying channels at the same time as the data information sequences are transmitted. The adaptation is realized following a mixed adaptation procedure based on a direct (without channel identification) and indirect (with channel identification) scheme. The invention is described for UMTS (Universal Mobile Telecommunications System) application in cellular communications system.
摘要翻译：公开了一种优化诸如应用于直接序列码分多址（DS-CDMA）的多用户检测（MUD）的接收机滤波器的参数的自适应过程。该过程考虑了由发射机发送的训练数据序列的不存在而施加的限制，并且需要在接收机处适配滤波器参数。适应包括使用通过相同信道传输的两个不同的数据序列; 作为有效载荷数据发送一个数据序列，作为训练数据发送第二数据序列，用于在接收机处适配滤波器参数。在发送数据信息序列的同时，接收机滤波器的参数适应存在变化的信道。基于直接（无信道识别）和间接（具有信道识别）方案的混合适配过程来实现适配。针对蜂窝通信系统中的UMTS（通用移动电信系统）应用描述了本发明。

7. 发明申请

WO2004040789A2 CASCADE FILTER RECEIVER FOR DS-CDMA COMMUNICATION SYSTEMS 审中-公开
标题翻译：用于DS-CDMA通信系统的CASCADE滤波接收器
公开(公告)号：WO2004040789A2
公开(公告)日：2004-05-13
申请号：PCT/CA2003/001650
申请日：2003-10-29
申请人： AXIOCOM INC. , MASSICOTTE, Daniel , DAHMANE, Adel-Omar
发明人： MASSICOTTE, Daniel , DAHMANE, Adel-Omar
IPC分类号： H04B1/707
CPC分类号： H04B1/7105 , H04B1/71075 , H04L25/03305 , H04L25/03331 , H04L2025/03464 , H04L2025/03484 , H04L2025/03509 , H04L2025/03617
摘要： A description of an adaptable multiuser processing unit applied to Direct-Sequence Code Division Multiple Access (DS-CDMA) is disclosed. The adaptable multiuser processing unit consists of cascade filters where each filter is adapted independently. The adaptation of a first filter is based on the error between the output of the first filter and a desired signal, in the same way for the other filters. The adaptation is realized follow a direct, without channel identification, or indirect, with channel identification, procedure. The first filter receives the input signal in Baud (1/T) or Fractionally (k/T) spaced and the last filter gives to the MUD output the decisions on the symbols estimated for each users. A decision feedback may be applied to the input of each filter such as the conventional Decision Feedback Equalizer (DFE). In more, each filter can be linear or nonlinear.
摘要翻译：公开了适用于直接序列码分多址（DS-CDMA）的适应性多用户处理单元的描述。适应性多用户处理单元由级联滤波器组成，其中每个滤波器独立地适配。对于其他滤波器，第一滤波器的适配是基于第一滤波器的输出与期望信号之间的误差，以相同的方式。适应实现遵循直接，无通道识别或间接，具有信道识别，程序。第一个滤波器以波特（1 / T）或分数（k / T）间隔接收输入信号，最后一个滤波器给出MUD输出对每个用户估计的符号的决定。判决反馈可以应用于诸如传统的判决反馈均衡器（DFE）的每个滤波器的输入。更多地，每个滤波器可以是线性或非线性的。

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