-
公开(公告)号：US08958500B2
公开(公告)日：2015-02-17
申请号：US13515920
申请日：2010-11-19
申请人： Xiaojing Huang , Yingjie Jay Guo , Jian Zhang
发明人： Xiaojing Huang , Yingjie Jay Guo , Jian Zhang
CPC分类号： H03G7/007 , H03G3/3042 , H04L27/2623
摘要： Disclosed is a wireless communication signal peak-to-average power ratio reduction, method. The method comprises calculating a peak envelope from an envelope of an input signal using a clipping threshold; smoothing the peak envelope using a window function; mapping the smoothed peak envelope to an attenuation function using the clipping threshold; and applying the attenuation function to the input signal.
摘要翻译： 公开了一种无线通信信号峰均功率比的降低方法。 该方法包括使用限幅阈值从输入信号的包络计算峰值包络; 使用窗口函数对峰值包络进行平滑; 使用限幅阈值将平滑的峰值包络映射到衰减函数; 并将衰减函数应用于输入信号。
-
公开(公告)号：US09191034B2
公开(公告)日：2015-11-17
申请号：US14003639
申请日：2011-03-09
申请人： Xiaojing Huang , Yingjie Jay Guo , Jian Zhang
发明人： Xiaojing Huang , Yingjie Jay Guo , Jian Zhang
CPC分类号： H04B1/0017 , H03H17/028 , H03H17/0642 , H04L25/03828 , H04L25/03834 , H04L25/03878 , H04L25/14 , H04L27/2628 , H04L27/2644 , H04L27/2649
摘要： Disclosed is a communication modulator with sample rate conversion. The modulator comprises a symbol mapping module configured to map an input bitstream to a symbol sequence; a pre-distortion module configured to multiply the symbol sequence by a discrete frequency response to produce a pre-distorted symbol sequence; a modulation module configured to modulate the pre-distorted symbol sequence to a time-domain baseband sample sequence; a sample rate conversion module configured to convert the sample rate of the baseband sample sequence to a different sample rate to produce a sample-rate-converted baseband sample sequence; and an up-conversion module configured to up-convert the sample-rate-converted baseband sample sequence to an intermediate frequency signal. The discrete frequency response by which the pre-distortion module multiplies the symbol sequence is configured to compensate for passband droop introduced to the sample-rate-converted baseband sample sequence by the sample rate conversion module.
摘要翻译： 公开了具有采样率转换的通信调制器。 调制器包括配置成将输入比特流映射到符号序列的符号映射模块; 配置成将符号序列乘以离散频率响应以产生预失真的符号序列的预失真模块; 调制模块，被配置为将所述预失真符号序列调制为时域基带采样序列; 采样率转换模块，被配置为将所述基带采样序列的采样率转换成不同的采样率，以产生采样率转换的基带采样序列; 以及上变频模块，被配置为将采样率转换的基带采样序列升压转换成中频信号。 预失真模块乘以符号序列的离散频率响应被配置为补偿由采样率转换模块引入到采样率转换的基带采样序列的通带下降。
-
公开(公告)号：US20140105325A1
公开(公告)日：2014-04-17
申请号：US14003639
申请日：2011-03-09
申请人： Xiaojing Huang , Yingjie Jay Guo , Jian Zhang
发明人： Xiaojing Huang , Yingjie Jay Guo , Jian Zhang
CPC分类号： H04B1/0017 , H03H17/028 , H03H17/0642 , H04L25/03828 , H04L25/03834 , H04L25/03878 , H04L25/14 , H04L27/2628 , H04L27/2644 , H04L27/2649
摘要： Disclosed is a communication modulator with sample rate conversion. The modulator comprises a symbol mapping module configured to map an input bitstream to a symbol sequence; a pre-distortion module configured to multiply the symbol sequence by a discrete frequency response to produce a pre-distorted symbol sequence; a modulation module configured to modulate the pre-distorted symbol sequence to a time-domain baseband sample sequence; a sample rate conversion module configured to convert the sample rate of the baseband sample sequence to a different sample rate to produce a sample-rate-converted baseband sample sequence; and an up-conversion module configured to up-convert the sample-rate-converted baseband sample sequence to an intermediate frequency signal. The discrete frequency response by which the pre-distortion module multiplies the symbol sequence is configured to compensate for passband droop introduced to the sample-rate-converted baseband sample sequence by the sample rate conversion module.
摘要翻译： 公开了具有采样率转换的通信调制器。 调制器包括配置成将输入比特流映射到符号序列的符号映射模块; 配置成将符号序列乘以离散频率响应以产生预失真的符号序列的预失真模块; 调制模块，被配置为将所述预失真符号序列调制为时域基带采样序列; 采样率转换模块，被配置为将所述基带采样序列的采样率转换成不同的采样率，以产生采样率转换的基带采样序列; 以及上变频模块，被配置为将采样率转换的基带采样序列升压转换成中频信号。 预失真模块乘以符号序列的离散频率响应被配置为补偿由采样率转换模块引入采样率转换的基带采样序列的通带下降。
-
公开(公告)号：US08798558B2
公开(公告)日：2014-08-05
申请号：US13516288
申请日：2011-01-27
申请人： Jian Zhang , Xiaojing Huang , Yingjie Jay Guo
发明人： Jian Zhang , Xiaojing Huang , Yingjie Jay Guo
IPC分类号： H04B1/04
CPC分类号： H04L27/2602 , H04L25/03012 , H04L25/03343 , H04L25/03828 , H04L27/2626 , H04L27/2634 , H04L27/2647 , H04L27/2649 , H04L2025/03414
摘要： Disclosed is a transmitter for a communication system. The transmitter comprises a sidelobe suppression module configured to apply a suppression matrix to an input vector comprising symbols to be transmitted by the transmitter; a modulation module configured to modulate the precoded vector to a time-domain symbol using a plurality of subcarriers, each symbol in the precoded vector having a corresponding subcarrier; and a digital-to-analog conversion module configured to convert the time-domain symbol to an analog waveform for transmission. The suppression matrix is constructed such that emissions at one or more predetermined suppression distances lying outside a frequency band defined by the subcarriers are set to zero according to a predetermined emission model.
摘要翻译： 公开了一种用于通信系统的发射机。 所述发射机包括旁瓣抑制模块，所述旁瓣抑制模块被配置为将抑制矩阵应用于包括由所述发射机发送的符号的输入向量; 调制模块，被配置为使用多个子载波将所述预编码矢量调制为时域符号，所述预编码矢量中的每个符号具有相应的子载波; 以及数模转换模块，被配置为将时域符号转换为模拟波形用于传输。 抑制矩阵被构造成使得位于由子载波限定的频带之外的一个或多个预定抑制距离处的发射根据预定的发射模型被设置为零。
-
公开(公告)号：US20130005282A1
公开(公告)日：2013-01-03
申请号：US13516288
申请日：2011-01-27
申请人： Jian Zhang , Xiaojing Huang , Yingjie Jay Guo
发明人： Jian Zhang , Xiaojing Huang , Yingjie Jay Guo
CPC分类号： H04L27/2602 , H04L25/03012 , H04L25/03343 , H04L25/03828 , H04L27/2626 , H04L27/2634 , H04L27/2647 , H04L27/2649 , H04L2025/03414
摘要： Disclosed is a transmitter for a communication system. The transmitter comprises a sidelobe suppression module configured to apply a suppression matrix to an input vector comprising symbols to be transmitted by the transmitter; a modulation module configured to modulate the precoded vector to a time-domain symbol using a plurality of subcarriers, each symbol in the precoded vector having a corresponding subcarrier; and a digital-to-analog conversion module configured to convert the time-domain symbol to an analog waveform for transmission. The suppression matrix is constructed such that emissions at one or more predetermined suppression distances lying outside a frequency band defined by the subcarriers are set to zero according to a predetermined emission model.
摘要翻译： 公开了一种用于通信系统的发射机。 所述发射机包括旁瓣抑制模块，所述旁瓣抑制模块被配置为将抑制矩阵应用于包括由所述发射机发送的符号的输入向量; 调制模块，被配置为使用多个子载波将所述预编码矢量调制为时域符号，所述预编码矢量中的每个符号具有相应的子载波; 以及数模转换模块，被配置为将时域符号转换为模拟波形用于传输。 抑制矩阵被构造成使得位于由子载波限定的频带之外的一个或多个预定抑制距离处的发射根据预定的发射模型被设置为零。
-
公开(公告)号：US20120307925A1
公开(公告)日：2012-12-06
申请号：US13515920
申请日：2010-11-19
申请人： Xiaojing Huang , Yingjie Jay Guo , Jian Zhang
发明人： Xiaojing Huang , Yingjie Jay Guo , Jian Zhang
CPC分类号： H03G7/007 , H03G3/3042 , H04L27/2623
摘要： Disclosed is a wireless communication signal peak-to-average power ratio reduction, method. The method comprises calculating a peak envelope from an envelope of an input signal using a clipping threshold; smoothing the peak envelope using a window function; mapping the smoothed peak envelope to an attenuation function using the clipping threshold; and applying the attenuation function to the input signal.
摘要翻译： 公开了一种无线通信信号峰均功率比的降低方法。 该方法包括使用限幅阈值从输入信号的包络计算峰值包络; 使用窗口函数对峰值包络进行平滑; 使用限幅阈值将平滑的峰值包络映射到衰减函数; 并将衰减函数应用于输入信号。
-
公开(公告)号：US20110164623A1
公开(公告)日：2011-07-07
申请号：US12746908
申请日：2009-07-06
申请人： Xiaojing Huang , Yingjie Jay Guo
发明人： Xiaojing Huang , Yingjie Jay Guo
IPC分类号： H04J3/24
CPC分类号： H04L5/003 , H04L1/0003 , H04L5/0007
摘要： Disclosed is a modulation method, comprising dividing a series of data bits into a plurality of contiguous blocks; composing each block into a corresponding parallel packet; mapping one or more bits from each parallel packet into a corresponding data symbol; and modulating the data symbols onto respective subcarriers of an OFDM symbol.
摘要翻译： 公开了一种调制方法，包括将一系列数据位分成多个连续块; 将每个块组合成相应的并行包; 将来自每个并行分组的一个或多个比特映射到相应的数据符号中; 并将数据符号调制到OFDM符号的各个子载波上。
-
公开(公告)号：US09313764B2
公开(公告)日：2016-04-12
申请号：US14233997
申请日：2011-07-20
申请人： Mark Hedley , Yingjie Jay Guo , Xiaojing Huang
发明人： Mark Hedley , Yingjie Jay Guo , Xiaojing Huang
CPC分类号： H04W64/00 , G01S5/14 , G01S13/76 , G01S13/878
摘要： Disclosed is an apparatus for estimating the location of a remote node. The apparatus comprises an antenna array comprising a plurality of elements in a fixed spatial arrangement, at least one element being a transmitting element configured to transmit a first wireless signal to the remote node, and at least two elements being receiving elements configured to receive a second wireless signal transmitted by the remote node in response to the first wireless signal. The apparatus further comprises a signal processing unit connected to the antenna array, the signal processing unit being configured to: estimate a plurality of round trip distances using the wireless signals, each round trip distance being from a transmitting element to the remote node and back to a receiving element; and estimate the location of the remote node using the round trip distance estimates.
摘要翻译： 公开了一种用于估计远程节点的位置的装置。 所述装置包括天线阵列，所述天线阵列包括固定空间布置的多个元件，至少一个元件是被配置为向所述远程节点发射第一无线信号的发射元件，以及至少两个元件，被配置为接收第二个 远程节点响应于第一无线信号而发送的无线信号。 该装置还包括连接到天线阵列的信号处理单元，信号处理单元被配置为：使用无线信号估计多个往返行程距离，每个往返行程距离是从发送元件到远程节点，并且返回到 接收元件; 并使用往返距离估计来估计远程节点的位置。
-
公开(公告)号：US20120269286A1
公开(公告)日：2012-10-25
申请号：US13504456
申请日：2010-10-14
申请人： Xiaojing Huang , Yingjie Jay Guo
发明人： Xiaojing Huang , Yingjie Jay Guo
IPC分类号： H04L27/28
CPC分类号： H04L25/0248 , H04B7/0617 , H04L5/0007 , H04L25/03343 , H04L27/2626 , H04L27/2647 , H04L2025/03414
摘要： A transmission signal pre-processing method and apparatus for out-of-band emission cancellation are disclosed. For each of N subchannels in a band weighting each of N subchannel symbols by a calculated value in the range from 0 to 1 is performed. Precoding said N weighted symbols, organised as an N×1 matrix, by multiplication by a unitary matrix is then performed.
摘要翻译： 公开了一种用于带外发射消除的传输信号预处理方法和装置。 对于N个子信道符号中的每一个的N个子信道中的每个N个子信道，执行从0到1的范围内的计算值。 然后执行预编码，然后执行通过乘以酉矩阵组织为N×1矩阵的N个加权符号。
-
公开(公告)号：US20140194142A1
公开(公告)日：2014-07-10
申请号：US14233997
申请日：2011-07-20
申请人： Mark Hedley , Yingjie Jay Guo , Xiaojing Huang
发明人： Mark Hedley , Yingjie Jay Guo , Xiaojing Huang
CPC分类号： H04W64/00 , G01S5/14 , G01S13/76 , G01S13/878
摘要： Disclosed is an apparatus for estimating the location of a remote node. The apparatus comprises an antenna array comprising a plurality of elements in a fixed spatial arrangement, at least one element being a transmitting element configured to transmit a first wireless signal to the remote node, and at least two elements being receiving elements configured to receive a second wireless signal transmitted by the remote node in response to the first wireless signal. The apparatus further comprises a signal processing unit connected to the antenna array, the signal processing unit being configured to: estimate a plurality of round trip distances using the wireless signals, each round trip distance being from a transmitting element to the remote node and back to a receiving element; and estimate the location of the remote node using the round trip distance estimates.
摘要翻译： 公开了一种用于估计远程节点的位置的装置。 所述装置包括天线阵列，所述天线阵列包括固定空间布置的多个元件，至少一个元件是被配置为向所述远程节点发射第一无线信号的发射元件，以及至少两个元件，被配置为接收第二个 远程节点响应于第一无线信号而发送的无线信号。 该装置还包括连接到天线阵列的信号处理单元，信号处理单元被配置为：使用无线信号估计多个往返行程距离，每个往返距离是从发射元件到远程节点，并且返回到 接收元件; 并使用往返距离估计来估计远程节点的位置。
-
-
-
-
-
-
-
-
-
搜索结果
22 条记录 (耗时 0.027 秒)
