会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明授权
    • Mitigation of interference and crosstalk in communications systems
    • 减轻通信系统中的干扰和串扰
    • US07978591B2
    • 2011-07-12
    • US11694981
    • 2007-03-31
    • Mark Alan EricksonThorkell GudmundssonIoannis KanellakopoulosJohn Josef Hench
    • Mark Alan EricksonThorkell GudmundssonIoannis KanellakopoulosJohn Josef Hench
    • H04J1/12H04J3/10
    • H04L25/03006H04L25/0246H04L2025/03426
    • Signals in a multi-channel, impaired communication system are post-processed at the receiver. A triangular matrix Decision Feedback Demodulator (DFD) at the receiver extracts channels without requiring delivery of receiver parameters to the transmitter. Multi-Input Multi-Output (MIMO) processing matrices and DFD parameters are computed by first applying matrix transformations to diagonalize the noise covariance matrix of the multiple channels received at the receiver. QR decompositions (i.e., decompositions into orthogonal and triangular matrices) are then applied to the main channels to obtain triangular channel matrices. The noise-diagonalizing transformations and QR decompositions are then combined to form the MIMO postprocessing matrices and DFD parameters. MIMO postprocessing matrices and DFD parameters are computed from training data and then adapted during live data transmission.
    • 多通道,受损的通信系统中的信号在接收机上进行后处理。 在接收器处的三角矩阵判决反馈解调器(DFD)提取信道而不需要向发射机传送接收机参数。 通过首先应用矩阵变换来对接收机接收的多个信道的噪声协方差矩阵进行对角化来计算多输入多输出(MIMO)处理矩阵和DFD参数。 然后将QR分解(即,分解成正交和三角矩阵)施加到主信道以获得三角形信道矩阵。 然后将噪声对角化变换和QR分解组合以形成MIMO后处理矩阵和DFD参数。 从训练数据计算MIMO后处理矩阵和DFD参数,然后在实时数据传输期间进行调整。