公开(公告)号：US20050271171A1

公开(公告)日：2005-12-08

申请号：US11137129

申请日：2005-05-25

申请人： Romed Schur ,  Arnoud Van Klinken

发明人： Romed Schur ,  Arnoud Van Klinken

IPC分类号： H04L1/20 ,  H03D1/04

CPC分类号： H04L1/20 ,  H04L27/2647

摘要： Method for motion-compensated noise evaluation for mobile wireless transmission systems, in which reference symbols (14, 16) are sent out by a transmitter (1), with the features that from at least some of the reference symbols ({overscore (s)}−1, {overscore (s)}−2, {overscore (s)}−3) received in direct or indirect temporal succession in a receiver (2) a static component ({overscore (s)}avg) of the received reference symbols ({overscore (s)}−1, {overscore (s)}−2, {overscore (s)}−3) is determined by forming a statistical moment; a dynamic component ({overscore (s)}motion) of the received reference symbols ({overscore (s)}−1, {overscore (s)}−2, {overscore (s)}−3) is determined by comparing at least two directly or indirectly time-consecutive reference symbols ({overscore (s)}−μ, {overscore (s)}−1); from the static ({overscore (s)}avg) and the dynamic components ({overscore (s)}motion) of the reference symbols ({overscore (s)}−1, {overscore (s)}−2, {overscore (s)}−3) is computed a predicted value ({overscore (s)}pred) for the next received reference symbol ({overscore (s)}0); after receiving the next reference symbol ({overscore (s)}0), by comparing this received reference symbol ({overscore (s)}0) with the predicted value ({overscore (s)}pred) one determines a prediction error ({overscore (s)}err); from the prediction error ({overscore (s)}err) one determines an estimate for the noise (Pnoise) of a data signal transmitted in a transmission channel (5), and by allowing for the prediction error ({overscore (s)}err) the calculation of the predicted value ({overscore (s)}pred) is adapted to time changes in the transmission channel.

公开(公告)号：US07496165B2

公开(公告)日：2009-02-24

申请号：US11137129

申请日：2005-05-25

申请人： Romed Schur ,  Arnoud Hendrik Van Klinken

发明人： Romed Schur ,  Arnoud Hendrik Van Klinken

IPC分类号： H03D1/04

CPC分类号： H04L1/20 ,  H04L27/2647

摘要： A device for motion-compensated noise evaluation for mobile wireless transmission systems, in which reference symbols are sent out by a transmitter, includes storage devices for reference symbols sent out in direct or indirect temporal succession and furnished to a receiver. The device computes a static component of the received reference symbols by forming a statistical moment from at least some of the reference symbols saved in the storage devices. A dynamic component of the received reference symbols is determined from the difference of at least two reference symbols saved in the storage devices, and a prediction device determines a predicted value for the next reference symbol supplied by the receiver by using the static component and the dynamic component of the reference symbols. A prediction error is determined from the difference between the predicted reference symbol and the next reference symbol supplied by the receiver, and an estimate for the noise is computed. The prediction device is adapted through the prediction error to time changes in the transmission channel.

摘要翻译： 用于移动无线传输系统的运动补偿噪声评估的装置，其中由发射机发送参考符号，包括用于直接或间接时间连续发送并提供给接收机的参考符号的存储装置。 设备通过从存储设备中保存的至少一些参考符号形成统计矩阵来计算接收的参考符号的静态分量。 根据存储装置中保存的至少两个参考符号的差来确定接收到的参考符号的动态分量，并且预测装置通过使用静态分量和动态的方式确定由接收机提供的下一个参考符号的预测值 参考符号的组成部分。 从预测参考符号和由接收机提供的下一个参考符号之间的差确定预测误差，并且计算噪声的估计。 预测装置通过预测误差适应传输信道的时间变化。

公开(公告)号：US20070233768A1

公开(公告)日：2007-10-04

申请号：US11712202

申请日：2007-02-28

申请人： Robert Fritsch ,  Romed Schur

发明人： Robert Fritsch ,  Romed Schur

IPC分类号： G06F7/38

CPC分类号： G06F7/4818 ,  G06F7/5446

摘要： The invention relates to continuous computing of an averaged value of a complex signal, in which values are produced by iterative processing, such as CORDIC processing, from digital complex input values of in-phase and quadrature components (si, sq) of the complex signal. The smoothed value is provided by processing the input values by two cascading CORDIC processing units with feedback, and a low-pass filtering contained implicitly therein.

摘要翻译： 本发明涉及复数信号的平均值的连续计算，其中通过诸如CORDIC处理的迭代处理从复数信号的同相和正交分量（si，sq）的数字复输入值产生值 。 通过用反馈进行的两个级联CORDIC处理单元处理输入值，并且其中隐含地包含低通滤波来提供平滑值。