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1.发明授权Distortion correction control apparatus and distortion correction control method 有权失真校正控制装置和失真校正控制方法公开(公告)号：US07881404B2
公开(公告)日：2011-02-01
申请号：US12567510
申请日：2009-09-25
申请人： Hiroyoshi Ishikawa , Kazuo Nagatani , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Yasuyuki Oishi
发明人： Hiroyoshi Ishikawa , Kazuo Nagatani , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Yasuyuki Oishi
CPC分类号： H03F1/32 , H03F1/3241 , H03F1/3247 , H03F3/19
摘要： A distortion correction control apparatus is for compensating for a burst distortion of a transmission amplifier caused by a burst of an input signal of a transmission target. The apparatus includes a generation unit that generates a distortion correction coefficient having reverse characteristics to the foregoing burst distortion; a unit that multiplies the distortion correction coefficient output from the generation unit by the input signal or adds the distortion correction coefficient output from the generation unit to the input signal, upon reception of burst information notifying of switching between presence and absence of the input signal; and an update unit that updates, based on the input signal and a branch signal fed back as an output signal of the transmission amplifier, parameters of functions used for adaptively generating the distortion correction coefficient, and that inputs the updated parameters to the generation unit.
摘要翻译： 失真校正控制装置用于补偿由发射目标的输入信号的脉冲串引起的发射放大器的脉冲串失真。 该装置包括产生具有与上述突发畸变相反的特性的失真校正系数的生成单元; 一个单元，用于通过输入信号将从生成单元输出的失真校正系数乘以输入信号，或将从生成单元输出的失真校正系数与输入信号相加，或者将通过输入信号存在与不存在切换之间的突发信息相加; 以及更新单元，其基于所述输入信号和作为所述发送放大器的输出信号反馈的分支信号来更新用于自适应地生成所述失真校正系数的功能的参数，并且将更新的参数输入到所述生成单元。
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2.发明授权Distortion correction control apparatus and distortion correction control method 有权失真校正控制装置和失真校正控制方法公开(公告)号：US07746957B2
公开(公告)日：2010-06-29
申请号：US12567431
申请日：2009-09-25
申请人： Hiroyoshi Ishikawa , Kazuo Nagatani , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Yasuyuki Oishi
发明人： Hiroyoshi Ishikawa , Kazuo Nagatani , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Yasuyuki Oishi
CPC分类号： H03F1/3247 , H03F2201/3233
摘要： A distortion correction control apparatus is for compensating for a burst distortion in a transmission amplifier caused by a burst of an input signal of a transmission target. The apparatus includes a holding unit that stores a distortion correction coefficient having reverse characteristics to the burst distortion; a unit that multiplies the distortion correction coefficient read out from the holding unit by the input signal or adds the distortion correction coefficient read out from the holding unit to the input signal, upon reception of burst information notifying of switching between presence and absence of the input signal; and an update unit that updates, based on the input signal, the distortion correction coefficient of the last time, and a signal fed back as an output signal of the transmission amplifier, the distortion correction coefficient by an adaptive algorithm, and that inputs the updated distortion correction coefficient to the holding unit.
摘要翻译： 失真校正控制装置用于补偿由发送目标的输入信号的脉冲串引起的发送放大器中的脉冲串失真。 该装置包括保存单元，其存储具有与突发失真相反特性的失真校正系数; 将从保持单元读出的失真校正系数乘以输入信号的单位，或者在接收到通知输入有无之间切换的突发信息时，将从保持单元读出的失真校正系数与输入信号相加 信号; 以及更新单元，其基于输入信号更新上一次的失真校正系数，以及作为发送放大器的输出信号反馈的信号，通过自适应算法更新失真校正系数，并且输入更新的 失真校正系数到保持单元。
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公开(公告)号：US07551905B2
公开(公告)日：2009-06-23
申请号：US10998283
申请日：2004-11-23
申请人： Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Yasuyuki Oishi , Toru Maniwa , Hiroyuki Hayashi
发明人： Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Yasuyuki Oishi , Toru Maniwa , Hiroyuki Hayashi
IPC分类号： H01Q11/12
CPC分类号： H04L27/368 , H03F1/3247 , H03F1/3294 , H03F2200/447 , H03F2201/3233
摘要： A distortion compensation apparatus of the present invention is used in a transmitter that produces and outputs a second signal from a first signal. This apparatus comprises a delay unit for delaying a feedback signal obtained from by the second signal; and a delay control unit for determining a delay quantity of said delay means so that a timing difference between a reference signal obtained from the first signal and the feedback signal delayed by the delay unit is made small. The delay control unit limits the delay quantity within a predetermined limit value.
摘要翻译： 本发明的失真补偿装置用于从第一信号产生并输出第二信号的发送器中。 该装置包括用于延迟由第二信号获得的反馈信号的延迟单元; 以及延迟控制单元，用于确定所述延迟装置的延迟量，使得从第一信号获得的参考信号和由延迟单元延迟的反馈信号之间的定时差变小。 延迟控制单元将延迟量限制在预定极限值内。
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公开(公告)号：US20050101258A1
公开(公告)日：2005-05-12
申请号：US10998283
申请日：2004-11-23
申请人： Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Yasuyuki Oishi , Toru Maniwa , Hiroyuki Hayashi
发明人： Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Yasuyuki Oishi , Toru Maniwa , Hiroyuki Hayashi
CPC分类号： H04L27/368 , H03F1/3247 , H03F1/3294 , H03F2200/447 , H03F2201/3233
摘要： A distortion compensation apparatus of the present invention is used in a transmitter that produces and outputs a second signal from a first signal. This apparatus comprises a delay unit for delaying a feedback signal obtained from by the second signal; and a delay control unit for determining a delay quantity of said delay means so that a timing difference between a reference signal obtained from the first signal and the feedback signal delayed by the delay unit is made small. The delay control unit limits the delay quantity within a predetermined limit value.
摘要翻译： 本发明的失真补偿装置用于从第一信号产生并输出第二信号的发送器中。 该装置包括用于延迟由第二信号获得的反馈信号的延迟单元; 以及延迟控制单元，用于确定所述延迟装置的延迟量，使得从第一信号获得的参考信号和由延迟单元延迟的反馈信号之间的定时差变小。 延迟控制单元将延迟量限制在预定极限值内。
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公开(公告)号：US06717464B2
公开(公告)日：2004-04-06
申请号：US10256833
申请日：2002-09-27
申请人： Nobukazu Fudaba , Yasuyuki Oishi , Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa
发明人： Nobukazu Fudaba , Yasuyuki Oishi , Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa
IPC分类号： H03F126
CPC分类号： H03F1/3241 , H03F1/3247 , H03F1/3294 , H03F2201/3233
摘要： In a distortion compensating apparatus for adaptively compensating a non-linear distortion of a circuit having the non-linear distortion, an adaptive equalizing processor adaptively selects, from among a filter coefficient group preliminarily held in a memory, a filter coefficient which makes an out-of-band power of an output signal reduced to be set in a digital filter.
摘要翻译： 在用于自适应地补偿具有非线性失真的电路的非线性失真的失真补偿装置中，自适应均衡处理器从预先保持在存储器中的滤波器系数组中自适应地选择滤波器系数， 输出信号的带内功率减少以设置在数字滤波器中。
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公开(公告)号：US08588711B2
公开(公告)日：2013-11-19
申请号：US13234665
申请日：2011-09-16
CPC分类号： H03F1/3247 , H03F1/3258 , H03F3/189 , H03F3/24 , H03F2200/336 , H03F2200/451 , H03F2201/3233 , H03M1/0614 , H03M1/66 , H04B1/0475
摘要： A transmission apparatus includes an analog digital converter that performs sampling on a demodulated signal obtained by demodulating a part of an output signal, which is produced by amplifying a modulated signal of a baseband signal including a plurality of signals having frequencies separated from each other, at a sampling frequency lower than a frequency of a given intermodulation distortion component and converting the demodulated signal into a digital signal, a detection section that detects an aliasing component of the given intermodulation distortion component produced by the conversion of the analog digital converter, and a distortion compensation section that compensates an input signal to be modulated for the given intermodulation distortion component in accordance with the detected aliasing component.
摘要翻译： 一种发送装置，包括：模拟数字转换器，对通过解调部分输出信号而获得的解调信号进行采样，所述解调信号是通过放大包括具有彼此分离的频率的多个信号的基带信号的调制信号而产生的， 采样频率低于给定互调失真分量的频率并将解调信号转换为数字信号;检测部分，其检测通过模拟数字转换器的转换产生的给定互调失真分量的混叠分量;以及失真 补偿部分，根据检测到的混叠分量来补偿对于给定的互调失真分量要调制的输入信号。
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7.发明授权Distortion compensation device, radio communication device, and distortion compensation method 有权失真补偿装置，无线电通信装置和失真补偿方法公开(公告)号：US08493144B2
公开(公告)日：2013-07-23
申请号：US13088580
申请日：2011-04-18
申请人： Hiroyoshi Ishikawa , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Kazuo Nagatani , Yasuyuki Oishi
发明人： Hiroyoshi Ishikawa , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Kazuo Nagatani , Yasuyuki Oishi
IPC分类号： H03F1/26
CPC分类号： H03F1/3258 , H03F1/3247 , H03F3/189 , H03F3/24 , H03F2200/204 , H03F2200/451 , H03F2201/3233
摘要： A distortion compensation device includes a distortion compensation unit which compensates for a distortion generated in a power amplifier by using a polynomial in which a signal to be input into a power amplifier is raised to a power of a degree N (N is an integer larger than 0) and the raised signal is delayed by a delay number K (K is an integer larger than 0), and a polynomial adjusting unit which adjusts the degree N or the delay number K of the polynomial based on a comparison between a prescribed value, which indicates a degree of variation of the distortion generated in the power amplifier and a threshold value.
摘要翻译： 失真补偿装置包括失真补偿单元，其通过使用将要输入到功率放大器的信号提高到N的幂的多项式来补偿在功率放大器中产生的失真（N是大于 0），并且升高的信号被延迟了延迟数K（K是大于0的整数），以及多项式调整单元，其基于规定值， 其指示在功率放大器中产生的失真的变化程度和阈值。
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公开(公告)号：US20120068768A1
公开(公告)日：2012-03-22
申请号：US13234665
申请日：2011-09-16
CPC分类号： H03F1/3247 , H03F1/3258 , H03F3/189 , H03F3/24 , H03F2200/336 , H03F2200/451 , H03F2201/3233 , H03M1/0614 , H03M1/66 , H04B1/0475
摘要： A transmission apparatus includes an analog digital converter that performs sampling on a demodulated signal obtained by demodulating a part of an output signal, which is produced by amplifying a modulated signal of a baseband signal including a plurality of signals having frequencies separated from each other, at a sampling frequency lower than a frequency of a given intermodulation distortion component and converting the demodulated signal into a digital signal, a detection section that detects an aliasing component of the given intermodulation distortion component produced by the conversion of the analog digital converter, and a distortion compensation section that compensates an input signal to be modulated for the given intermodulation distortion component in accordance with the detected aliasing component.
摘要翻译： 一种发送装置，包括：模拟数字转换器，对通过解调部分输出信号而获得的解调信号进行采样，所述解调信号是通过放大包括具有彼此分离的频率的多个信号的基带信号的调制信号而产生的， 采样频率低于给定互调失真分量的频率并将解调信号转换为数字信号;检测部分，其检测通过模拟数字转换器的转换产生的给定互调失真分量的混叠分量;以及失真 补偿部分，根据检测到的混叠分量来补偿对于给定的互调失真分量要调制的输入信号。
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公开(公告)号：US07496152B2
公开(公告)日：2009-02-24
申请号：US10976290
申请日：2004-10-26
申请人： Kazuo Nagatani , Tokuro Kubo , Hiroyoshi Ishikawa , Yasuyuki Oishi , Toru Maniwa , Hiroyuki Hayashi , Hajime Hamada , Nobukazu Fudaba
发明人： Kazuo Nagatani , Tokuro Kubo , Hiroyoshi Ishikawa , Yasuyuki Oishi , Toru Maniwa , Hiroyuki Hayashi , Hajime Hamada , Nobukazu Fudaba
CPC分类号： H03F1/32 , H03F1/02 , H03F1/3247 , H03F1/345 , H03F3/24 , H04B2001/045
摘要： Disclosed is an adaptive control apparatus having an error calculation unit for calculating the difference between a reference signal and a feedback signal, and an adaptive controller for applying adaptive control so as to diminish the difference and causing the result of adaptive control to be reflected in the reference signal. The adaptive control apparatus has a delay unit for delaying at least one of the reference signal and feedback signal by a set delay time in such a manner that the reference signal and feedback signal will be input simultaneously to the arithmetic unit; a frequency-component detecting unit for detecting a frequency component of the reference signal; a delay-time acquisition unit for acquiring delay time conforming to the frequency component; and a delay-time setting unit for setting the acquired delay time in the delay unit.
摘要翻译： 公开了一种自适应控制装置，其具有用于计算参考信号和反馈信号之间的差的误差计算单元和用于施加自适应控制的自适应控制器，以便减小差异并使自适应控制的结果反映在 参考信号。 自适应控制装置具有延迟单元，用于将参考信号和反馈信号中的至少一个延迟设定的延迟时间，使得参考信号和反馈信号将同时输入到运算单元; 频率分量检测单元，用于检测参考信号的频率分量; 延迟时间获取单元，用于获取符合频率分量的延迟时间; 以及延迟时间设定单元，用于在所述延迟单元中设置所获取的延迟时间。
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公开(公告)号：US06980604B2
公开(公告)日：2005-12-27
申请号：US09973613
申请日：2001-10-09
申请人： Tokuro Kubo , Takayoshi Ode , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Yasuyuki Oishi , Nobukazu Fudaba
发明人： Tokuro Kubo , Takayoshi Ode , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Yasuyuki Oishi , Nobukazu Fudaba
CPC分类号： H04L5/06 , H03F1/3247
摘要： The present invention provides a transmission device for predistorting a digital signal in order to compensate distortion, then amplifying and transmitting it. A digital input signal is converted to a first analog signal by a first D/A converter. Separately, the digital input signal is also subjected to predistortion. A compensating signal is then generated from the digital input signal and the predistorted signal. The compensating signal generated thereby is converted into a second analog signal by a second D/A converter. The first analog signal and second analog signal are then added, this addition operation giving a compensated analog transmission signal. This analog transmission signal is supplied to the amplifier for amplification, and then transmitted via an antenna.
摘要翻译： 本发明提供了一种用于对数字信号进行预失真以便补偿失真，然后进行放大和发送的传输装置。 数字输入信号由第一D / A转换器转换成第一模拟信号。 另外，数字输入信号也经受预失真。 然后从数字输入信号和预失真信号产生补偿信号。 由此生成的补偿信号由第二D / A转换器转换成第二模拟信号。 然后添加第一模拟信号和第二模拟信号，该相加操作给出补偿的模拟传输信号。 该模拟传输信号被提供给放大器用于放大，然后经由天线发送。
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