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111. 发明授权

US5615233A Method for channel estimation using individual adaptation 失效
标题翻译：使用个人适应的信道估计方法
公开(公告)号：US5615233A
公开(公告)日：1997-03-25
申请号：US916757
申请日：1992-07-22
申请人： Kevin L. Baum , Bruce D. Mueller
发明人： Kevin L. Baum , Bruce D. Mueller
IPC分类号： H03H21/00 , H04B1/10 , H04B7/005 , H04L25/02 , H04B1/04 , H03H7/30
CPC分类号： H03H21/0012 , H04B1/1081 , H04B7/005 , H04L25/0212 , H04L25/025
摘要： The process of the present invention computes the update to the least mean square channel estimator taps. The update coefficient for each tap is computed independently based on the power of each tap relative to the main tap power.
摘要翻译：本发明的过程计算对最小均方通道估计器抽头的更新。基于相对于主抽头功率的每个抽头的功率，独立地计算每个抽头的更新系数。

112. 发明授权

US5276707A Method for optimizing an adaptive filter update coefficient 失效
标题翻译：用于优化自适应滤波器更新系数的方法
公开(公告)号：US5276707A
公开(公告)日：1994-01-04
申请号：US40064
申请日：1993-03-30
申请人： Kevin L. Baum
发明人： Kevin L. Baum
IPC分类号： H03H17/00 , H03H21/00 , H04B3/04 , H04B3/23 , H03H7/30
CPC分类号： H03H21/0043
摘要： The method of the present invention generates an optimal adaptive filter update coefficient by first generating three error signals using a signal input and three update coefficients (301-303). Mean Square Error (MSE) values are estimated (307 and 308) for the first and third error signals. The first MSE value (307) is subtracted (309) from the third MSE value (308) to generate a difference signal. The difference signal is used to generate (310) an update signal that is used to modify the update coefficients. The process of the present invention is repeated until the difference signal is substantially zero, thus optimizing the second update coefficient. This process enables an update coefficient for an adaptive filter to quickly adapt to a changing environment.
摘要翻译：本发明的方法通过使用信号输入和三个更新系数（301-303）首先产生三个误差信号来产生最佳的自适应滤波器更新系数。对于第一和第三误差信号，估计均方误差（MSE）值（307和308）。从第三MSE值（308）减去第一MSE值（307）（309）以产生差分信号。差分信号用于产生（310）用于修改更新系数的更新信号。重复本发明的过程，直到差信号基本上为零，从而优化第二更新系数。该过程使得自适应滤波器的更新系数能够快速适应不断变化的环境。

113. 发明授权

US5233633A Automatic frequency control by an adaptive filter 失效
标题翻译：通过自适应滤波器进行自动频率控制
公开(公告)号：US5233633A
公开(公告)日：1993-08-03
申请号：US15666
申请日：1993-02-09
申请人： Kevin L. Baum , Bruce D. Mueller
发明人： Kevin L. Baum , Bruce D. Mueller
IPC分类号： H03H21/00 , H03J7/04
CPC分类号： H03H21/0043 , H03J7/04
摘要： The process of the present invention generates an optimum automatic frequency control signal in an apparatus that has a plurality of adaptive algorithms, each adaptive algorithm having a reference signal with an associated frequency dither. The process starts by comparing the performance of each of the plurality of adaptive algorithms. This difference is input to a comparator where it is compared to zero. This delta signal then modifies the numerically controlled oscillator frequency. After several iterations, the frequency offset is reduced to substantially zero.
摘要翻译：本发明的方法在具有多个自适应算法的装置中产生最佳自动频率控制信号，每个自适应算法具有具有相关频率抖动的参考信号。该过程通过比较多个自适应算法中的每一个的性能开始。该差异被输入到比较器，其比较为零。该delta信号然后修改数控振荡器频率。经过几次迭代，频率偏移减小到基本为零。

114. 发明授权

US5195108A System and method for determining absolute phase of a differentially-encoded, phase-modulated signal 失效
标题翻译：用于确定差分编码的相位调制信号的绝对相的系统和方法
公开(公告)号：US5195108A
公开(公告)日：1993-03-16
申请号：US767963
申请日：1991-09-30
申请人： Kevin L. Baum , Bruce D. Mueller
发明人： Kevin L. Baum , Bruce D. Mueller
IPC分类号： H04L27/22 , H04L7/04 , H04L27/227 , H04L27/233
CPC分类号： H04L27/2332 , H04L27/2278 , H04L7/041
摘要： System and method for determining an absolute phase value of a differentially-encoded, DQPSK signal. A stored set of sequences of an ID sequence is compared with a received ID-sequence of a differentially-encoded, DQPSK signal transmitted to the receiver. The stored and the received ID sequences are correlated, and the stored values of the ID sequence are adjusted by the value of the calculated correlation.
摘要翻译：用于确定差分编码的DQPSK信号的绝对相位值的系统和方法。将ID序列的存储的序列集合与发送到接收机的经差分编码的DQPSK信号的接收ID序列进行比较。存储的和接收到的ID序列相关，并且通过计算的相关性的值来调整ID序列的存储值。

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