公开(公告)号：US20120134450A1

公开(公告)日：2012-05-31

申请号：US13306400

申请日：2011-11-29

申请人： Thomas Kolze ,  Bruce Currivan ,  Jonathan Min

发明人： Thomas Kolze ,  Bruce Currivan ,  Jonathan Min

IPC分类号： H04L27/06

CPC分类号： H04L1/005 ,  H04B1/71 ,  H04B1/7102 ,  H04B1/7103 ,  H04B1/71055 ,  H04B1/71072 ,  H04B2201/709709 ,  H04L1/0009 ,  H04L1/0045 ,  H04L1/0057 ,  H04N21/6168

摘要： Systems and methods are disclosed for detecting temporary high level impairments, such as noise or interference, for example, in a communications channel, and subsequently, mitigating the deleterious effects of the dynamic impairments. In one embodiment, the method not only performs dynamic characterization of channel fidelity against impairments, but also uses this dynamic characterization of the channel fidelity to adapt the receiver processing and to affect an improvement in the performance of the receiver. For example, in this embodiment, the method increases the accuracy of the estimation of the transmitted information, or similarly, increases the probability of making the correct estimates of the transmitted information, even in the presence of temporary severe levels of impairment. The channel fidelity history may also be stored and catalogued for use in, for example, future optimization of the transmit waveform.

摘要翻译： 公开了用于检测临时高级损伤（例如噪声或干扰）的系统和方法，例如在通信信道中，并且随后减轻动态损伤的有害影响。 在一个实施例中，该方法不仅执行对损伤的信道保真度的动态表征，而且还使用信道保真度的动态表征来适应接收机处理并影响接收机性能的改善。 例如，在本实施例中，该方法提高了所发送信息的估计的准确性，或者类似地，即使存在临时严重的损伤水平，也增加了发送信息的正确估计的可能性。 信道保真度历史也可以存储和编目，以用于例如发射波形的未来优化。

公开(公告)号：US08068564B2

公开(公告)日：2011-11-29

申请号：US12001316

申请日：2007-12-11

申请人： Thomas Kolze ,  Bruce Currivan ,  Jonathan Min

发明人： Thomas Kolze ,  Bruce Currivan ,  Jonathan Min

IPC分类号： H04L27/06

CPC分类号： H04L1/005 ,  H04B1/71 ,  H04B1/7102 ,  H04B1/7103 ,  H04B1/71055 ,  H04B1/71072 ,  H04B2201/709709 ,  H04L1/0009 ,  H04L1/0045 ,  H04L1/0057 ,  H04N21/6168

摘要： Systems and methods are disclosed for detecting temporary high level impairments, such as noise or interference, for example, in a communications channel, and subsequently, mitigating the deleterious effects of the dynamic impairments. In one embodiment, the method not only performs dynamic characterization of channel fidelity against impairments, but also uses this dynamic characterization of the channel fidelity to adapt the receiver processing and to affect an improvement in the performance of the receiver. For example, in this embodiment, the method increases the accuracy of the estimation of the transmitted information, or similarly, increases the probability of making the correct estimates of the transmitted information, even in the presence of temporary severe levels of impairment. The channel fidelity history may also be stored and catalogued for use in, for example, future optimization of the transmit waveform.

摘要翻译： 公开了用于检测临时高级损伤（例如噪声或干扰）的系统和方法，例如在通信信道中，并且随后减轻动态损伤的有害影响。 在一个实施例中，该方法不仅执行对损伤的信道保真度的动态表征，而且还使用信道保真度的动态表征来适应接收机处理并影响接收机性能的改善。 例如，在本实施例中，该方法提高了所发送信息的估计的准确性，或者类似地，即使存在临时严重的损伤水平，也增加了发送信息的正确估计的可能性。 信道保真度历史也可以存储和编目，以用于例如发射波形的未来优化。

公开(公告)号：US20070201590A1

公开(公告)日：2007-08-30

申请号：US11789764

申请日：2007-04-24

申请人： Thomas Kolze ,  Bruce Currivan ,  Jonathan Min ,  Eric Ojard ,  James Thi ,  Daniel Howard

发明人： Thomas Kolze ,  Bruce Currivan ,  Jonathan Min ,  Eric Ojard ,  James Thi ,  Daniel Howard

IPC分类号： H04B1/10

CPC分类号： H04B1/1036 ,  H04B1/1027 ,  H04B1/123 ,  H04L1/0001 ,  H04L25/03006

摘要： A filter settings generation operation includes sampling a communication channel to produce a sampled signal. The sampled signal is spectrally characterized across a frequency band of interest to produce a spectral characterization of the sampled signal. This spectral characterization may not include a signal of interest. The spectral characterization is then modified to produce a modified spectral characterization. Filter settings are then generated based upon the modified spectral characterization. Finally, the communication channel is filtered using the filter settings when the signal of interest is present on the communication channel. In modifying the spectral characterization, pluralities of spectral characteristics of the spectral characterization are independently modified to produce the modified spectral characterization. Modifications to the spectral characterization may be performed in the frequency domain and/or the time domain. One particular spectral modification that is performed is raising of the noise floor of the spectral characterization to meet a budgeted signal-to-noise ratio. Other spectral modifications include modifying spectral components corresponding to an expected interfering signal. In modifying these spectral characterizations, spectral components corresponding to a plurality of expected interfering signals may be modified.

摘要翻译： 滤波器设置生成操作包括对通信信道进行采样以产生采样信号。 采样信号在感兴趣的频带上进行频谱表征，以产生采样信号的频谱表征。 该光谱特性可能不包括感兴趣的信号。 然后修改光谱表征以产生修改的光谱表征。 然后基于修改的光谱表征生成滤波器设置。 最后，当感兴趣的信号存在于通信信道上时，使用滤波器设置对通信信道进行滤波。 在修改光谱表征时，光谱特性的多个光谱特征被独立地修改以产生修改的光谱表征。 频谱表征的修改可以在频域和/或时域中执行。 执行的一个特定频谱修改是提高频谱表征的本底噪声以满足预算的信噪比。 其他频谱修改包括修改对应于预期干扰信号的频谱分量。 在修改这些频谱表征时，可以修改对应于多个预期干扰信号的频谱分量。

公开(公告)号：US20070058759A1

公开(公告)日：2007-03-15

申请号：US11599334

申请日：2006-11-15

申请人： Thomas Kwon ,  Jonathan Min ,  Fang Lu ,  Thomas Kolze

发明人： Thomas Kwon ,  Jonathan Min ,  Fang Lu ,  Thomas Kolze

IPC分类号： H04L27/06 ,  H04B1/10

CPC分类号： H04L25/03273 ,  H04L25/03057 ,  H04L27/3827 ,  H04L2025/0349 ,  H04L2027/003 ,  H04L2027/004 ,  H04L2027/0055 ,  H04L2027/0061

摘要： A receiver includes a filter stage that receives, filters, and equalizes a received signal, and a decisional feedback loop coupled to the filter stage that receives and processes a signal output from the filter stage using remodulation. The decisional feedback loop includes a converter that generates a baseband signal, a detector that generates a decision signal, a restorative signal generator that generates a restorative signal using remodulation, and a carrier loop that generates a frequency correction signal and provides a frequency-offset estimate. The restorative signal and the frequency correction signal are provided to the converter to compensate for inter-symbol interference. The presented “remodulation” technique decouples interaction between the carrier loop, the pre-filters, and the equalizer of the restorative signal generator, providing an architecture that is more stable and significantly faster than conventional architectures.

摘要翻译： 接收机包括接收，滤波和均衡接收信号的滤波器级，以及耦合到滤波器级的判决反馈回路，其接收并处理从再过滤阶段输出的信号。 判决反馈回路包括产生基带信号的转换器，产生判定信号的检测器，使用再调制产生恢复信号的恢复信号发生器，以及产生频率校正信号并提供频偏估计的载波环路 。 将修复信号和频率校正信号提供给转换器以补偿符号间干扰。 所提出的“再调制”技术解耦了载体环路，预滤波器和恢复信号发生器的均衡器之间的相互作用，提供比传统架构更稳定和显着更快的架构。

公开(公告)号：US20050047489A1

公开(公告)日：2005-03-03

申请号：US10962803

申请日：2004-10-12

申请人： Nabil Yousef ,  Thomas Kolze ,  Jonathan Min

发明人： Nabil Yousef ,  Thomas Kolze ,  Jonathan Min

IPC分类号： H04B1/707 ,  H04J3/06 ,  H04L1/00

CPC分类号： H04N21/6168 ,  H04B1/71 ,  H04B1/7102 ,  H04B1/7103 ,  H04B1/71055 ,  H04B1/71072 ,  H04B2201/709709 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0045 ,  H04L1/005 ,  H04L1/0057

摘要： A system for mitigating impairment in a communication system includes a delay block, a signal level block, a moving average window block, an impulse noise detection block, and a combiner. The delay block receives and delays each chip of a plurality of chips in a spreading interval. The signal level block determines a signal level of each chip of the plurality of chips in the spreading interval. The moving average window block determines a composite signal level for a chip window corresponding to the chip. The impulse noise detection block receives the signal level, receives the composite signal level, and produces an erasure indication for each chip of the plurality of chips of the corresponding chip window. The combiner erases chips of the plurality of chips of the spreading interval based upon the erasure indication.

摘要翻译： 用于减轻通信系统中的损害的系统包括延迟块，信号电平块，移动平均窗口块，脉冲噪声检测块和组合器。 延迟块在扩展间隔中接收并延迟多个芯片的每个芯片。 信号电平块在扩展间隔中确定多个芯片的每个芯片的信号电平。 移动平均窗口块确定与芯片对应的芯片窗口的复合信号电平。 脉冲噪声检测块接收信号电平，接收复合信号电平，并产生相应芯片窗口的多个芯片的每个芯片的擦除指示。 基于擦除指示，组合器擦除扩展间隔的多个芯片的芯片。

公开(公告)号：US20050031064A1

公开(公告)日：2005-02-10

申请号：US10940136

申请日：2004-09-14

申请人： Thomas Kolze ,  Bruce Currivan ,  Jonathan Min ,  Eric Ojard ,  James Thi ,  Daniel Howard

发明人： Thomas Kolze ,  Bruce Currivan ,  Jonathan Min ,  Eric Ojard ,  James Thi ,  Daniel Howard

IPC分类号： H04B1/10 ,  H04B1/12 ,  H04L1/00 ,  H04L25/03

CPC分类号： H04B1/1036 ,  H04B1/1027 ,  H04B1/123 ,  H04L1/0001 ,  H04L25/03006

摘要： A filter settings generation operation includes sampling a communication channel to produce a sampled signal. The sampled signal is spectrally characterized across a frequency band of interest to produce a spectral characterization of the sampled signal. This spectral characterization may not include a signal of interest. The spectral characterization is then modified to produce a modified spectral characterization. Filter settings are then generated based upon the modified spectral characterization. Finally, the communication channel is filtered using the filter settings when the signal of interest is present on the communication channel. In modifying the spectral characterization, pluralities of spectral characteristics of the spectral characterization are independently modified to produce the modified spectral characterization. Modifications to the spectral characterization may be performed in the frequency domain and/or the time domain. One particular spectral modification that is performed is raising of the noise floor of the spectral characterization to meet a budgeted signal-to-noise ratio. Other spectral modifications include modifying spectral components corresponding to an expected interfering signal. In modifying these spectral characterizations, spectral components corresponding to a plurality of expected interfering signals may be modified.

摘要翻译： 滤波器设置生成操作包括对通信信道进行采样以产生采样信号。 采样信号在感兴趣的频带上进行频谱表征，以产生采样信号的频谱表征。 该光谱特性可能不包括感兴趣的信号。 然后修改光谱表征以产生修改的光谱表征。 然后基于修改的光谱表征生成滤波器设置。 最后，当感兴趣的信号存在于通信信道上时，使用滤波器设置对通信信道进行滤波。 在修改光谱表征时，光谱特性的多个光谱特征被独立地修改以产生修改的光谱表征。 频谱表征的修改可以在频域和/或时域中执行。 执行的一个特定频谱修改是提高频谱表征的本底噪声以满足预算的信噪比。 其他频谱修改包括修改对应于预期干扰信号的频谱分量。 在修改这些频谱表征时，可以修改对应于多个预期干扰信号的频谱分量。

公开(公告)号：US20080107211A1

公开(公告)日：2008-05-08

申请号：US12007042

申请日：2008-01-04

申请人： Jonathan Min ,  Fang Lu ,  Bruce Currivan ,  Tom Kwon

发明人： Jonathan Min ,  Fang Lu ,  Bruce Currivan ,  Tom Kwon

IPC分类号： H04L27/14

CPC分类号： H04L43/0823 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/203 ,  H04L1/206 ,  H04L25/08

摘要： A method of parameter estimation in a shared channel communications system includes the steps of receiving a preamble including a first sequence corresponding to a sequence having zero autocorrelation, a second sequence having zero autocorrelation, and a third sequence having zero autocorrelation, performing a coarse carrier frequency estimate based on the first sequence, and performing a fine carrier frequency estimate based on the second and third sequences.

摘要翻译： 共享信道通信系统中的参数估计方法包括以下步骤：接收包括对应于具有零自相关的序列的第一序列的前导码，具有零自相关的第二序列和具有零自相关的第三序列，执行粗载波频率 基于第一序列估计，并且基于第二和第三序列执行精细载波频率估计。

公开(公告)号：US20080098287A1

公开(公告)日：2008-04-24

申请号：US12001316

申请日：2007-12-11

申请人： Thomas Kolze ,  Bruce Currivan ,  Jonathan Min

发明人： Thomas Kolze ,  Bruce Currivan ,  Jonathan Min

IPC分类号： G06F11/08 ,  H04L27/00

CPC分类号： H04L1/005 ,  H04B1/71 ,  H04B1/7102 ,  H04B1/7103 ,  H04B1/71055 ,  H04B1/71072 ,  H04B2201/709709 ,  H04L1/0009 ,  H04L1/0045 ,  H04L1/0057 ,  H04N21/6168

摘要： Systems and methods are disclosed for detecting temporary high level impairments, such as noise or interference, for example, in a communications channel, and subsequently, mitigating the deleterious effects of the dynamic impairments. In one embodiment, the method not only performs dynamic characterization of channel fidelity against impairments, but also uses this dynamic characterization of the channel fidelity to adapt the receiver processing and to affect an improvement in the performance of the receiver. For example, in this embodiment, the method increases the accuracy of the estimation of the transmitted information, or similarly, increases the probability of making the correct estimates of the transmitted information, even in the presence of temporary severe levels of impairment. The channel fidelity history may also be stored and catalogued for use in, for example, future optimization of the transmit waveform.

摘要翻译： 公开了用于检测临时高级损伤（例如噪声或干扰）的系统和方法，例如在通信信道中，并且随后减轻动态损伤的有害影响。 在一个实施例中，该方法不仅执行对损伤的信道保真度的动态表征，而且还使用信道保真度的动态表征来适应接收机处理并影响接收机性能的改善。 例如，在本实施例中，该方法提高了所发送信息的估计的准确性，或者类似地，即使存在临时严重的损伤水平，也增加了发送信息的正确估计的可能性。 信道保真度历史也可以存储和编目，以用于例如发射波形的未来优化。

公开(公告)号：US20070061642A1

公开(公告)日：2007-03-15

申请号：US11489538

申请日：2006-07-20

申请人： Bruce Currivan ,  Thomas Kolze ,  Kevin Miller ,  Richard Prodan ,  Jonathan Min

发明人： Bruce Currivan ,  Thomas Kolze ,  Kevin Miller ,  Richard Prodan ,  Jonathan Min

IPC分类号： G01R31/28

CPC分类号： H04B1/69 ,  H04J13/0074

摘要： A system and method are used to provide uncorrelated code hopping in a communications system. A multi-bit linear shift register receives data and clocks the data fifteen times. A word assembler receives the shifted data and outputs a fifteen bit word. A mixer mixes the fifteen bit word with an numerical value of active codes to generate a mixed signal. A divider divides the mixed signal to produce a divided signal. A truncator truncates the divided signal to its seven most significant bits to produce a pseudo random hop number. A code matrix shifter circularly shifts the active codes in a code matrix based on the pseudo random hop number to produce a circularly shifted code. A transmitter transmits the circularly shifted code matrix.

摘要翻译： 系统和方法用于在通信系统中提供不相关的跳码。 多位线性移位寄存器接收数据并对数据进行十五次计时。 字汇编器接收移位数据并输出十五位字。 混频器将十五位字与有效码的数值混合以产生混合信号。 分频器分割混合信号以产生分频信号。 截断器将分割的信号截断为其七个最高有效位以产生伪随机跳数。 码矩阵移位器基于伪随机跳数循环移位代码矩阵中的活动代码，以产生循环移位代码。 发射机发送循环移位码矩阵。

公开(公告)号：US20070053470A1

公开(公告)日：2007-03-08

申请号：US11592286

申请日：2006-11-02

申请人： Nabil Yousef ,  Jun Ma ,  Jonathan Min

发明人： Nabil Yousef ,  Jun Ma ,  Jonathan Min

IPC分类号： H04L27/06

CPC分类号： H04B1/707 ,  H04B2201/70701 ,  H04L2027/0055

摘要： Iterative data-aided carrier CFO estimation for CDMA systems. Any communication receiver may be adapted to perform the iterative data-aided carrier CFO estimation. The iterative data-aided carrier CFO estimation is performed using a high accuracy method. The operation may be described as follows: a received signal is despread and buffered. Using the received preamble sequence, an initial estimate of the CFO is obtained. This estimate is used to correct the whole despread data. The corrected data using the initial CFO estimate is sliced. Each despread data symbol is divided by the corresponding sliced data decision. The obtained sequence is then averaged across different codes to obtain a less noisy sequence, which is then used to estimate the CFO again. The procedure can be repeated (iterated) to obtain a more accurate carrier frequency offset estimate; the number of times in which the procedure is repeated may be programmable or predetermined.