WO2014063539A1 - 一种多载波基带消峰装置及方法 - Google Patents
一种多载波基带消峰装置及方法 Download PDFInfo
- Publication number
- WO2014063539A1 WO2014063539A1 PCT/CN2013/083458 CN2013083458W WO2014063539A1 WO 2014063539 A1 WO2014063539 A1 WO 2014063539A1 CN 2013083458 W CN2013083458 W CN 2013083458W WO 2014063539 A1 WO2014063539 A1 WO 2014063539A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- peak
- module
- position information
- phase
- Prior art date
Links
- 230000008030 elimination Effects 0.000 title claims abstract description 42
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 56
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims description 24
- 238000005070 sampling Methods 0.000 claims description 18
- 238000007493 shaping process Methods 0.000 claims description 11
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 125000004122 cyclic group Chemical group 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims 2
- 230000010355 oscillation Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000010295 mobile communication Methods 0.000 description 3
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
- H04L1/0042—Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2614—Peak power aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2614—Peak power aspects
- H04L27/2618—Reduction thereof using auxiliary subcarriers
Definitions
- the present invention relates to mobile communication technologies, and in particular, to a multi-carrier baseband peak elimination apparatus and method.
- Embodiments of the present invention provide a multi-carrier baseband peak-eliminating apparatus and method, which solves the problem of reducing the peak-to-average ratio requirement of a baseband signal.
- An embodiment of the present invention provides a multi-carrier baseband peak elimination apparatus, including: K branches, a peak selection module, an error signal generation module, and an adder;
- K is an integer greater than 1; each branch includes a delay, a digital up-conversion module, a first numerically controlled oscillator, a first multiplier, a second numerically controlled oscillator, a second multiplier, a digital down conversion module, and an offset a pulse generation module, and a subtractor;
- An input end of the digital up-conversion module and an input end of the delay device are configured to connect a baseband signal, and an output end of the digital up-conversion module is connected to an input end of the first multiplier, the first numerically controlled oscillator The output end is connected to the input end of the first multiplier, and the output end of the first multiplier of the K branches is connected to the input end of the adder, and the output end of the adder is sequentially connected to the peak selection module and the error signal is generated.
- the output of the error signal generating module is connected to one input of the second multiplier of the K branches, and the output of the second numerically controlled oscillator is connected to the other input of the second multiplier, the second multiplied
- the output end of the device is connected to the digital down conversion module and the cancellation pulse generation module in turn, the output end of the cancellation pulse generation module is connected to the subtracted end of the phase reducer, and the output end of the delay is connected to the subtractor Subtraction end;
- the digital up-conversion module is configured to: perform N times up-sampling interpolation on the input baseband signal Wave
- the digital down conversion module is configured to: perform N times of sampling and decimation filtering on the input baseband signal;
- the first numerically controlled oscillator is configured to: generate a complex signal of a predetermined frequency
- the second numerically controlled oscillator is configured to: generate a signal of the same frequency and conjugate as the first numerically controlled oscillator;
- the peak selection module is configured to: filter out a peak signal whose amplitude exceeds a preset threshold in the combined signal output by the adder, and output peak signal amplitude, combined signal phase, and position information of the peak signal in the combined signal ;
- the error signal generating module is configured to: calculate a product of a peak signal amplitude and a combined signal phase to obtain an error signal, and output the error signal and the position information;
- the cancellation pulse generating module is configured to: generate a peak elimination sequence of the position corresponding to the position information according to the position information, and multiply the input signal to output.
- the peak selection module is configured to output peak signal amplitude, combined signal phase, and position information of the peak signal in the combined signal in the following manner:
- the error generation module is configured to output the error signal and the position information in the following manner:
- the digital down conversion module is further configured to: output the position information to the cancellation pulse generation module.
- An output end of the peak selection module is connected to an input end of the cancellation pulse generation module; the peak selection module is configured to output a peak signal amplitude and a combined signal phase in the following manner Bit, and the position information of the peak signal in the combined signal:
- the error signal generating module is configured to calculate an error signal of a product of the peak signal amplitude and the phase of the combined signal in the following manner:
- the calculated real part is a cosine function of the phase of the combined signal and the imaginary part is a complex number of the sine function of the phase of the combined signal, and the product of the complex number and the peak signal amplitude is calculated to obtain an error signal.
- the cancellation pulse generation module is configured to generate a peak elimination sequence of the position corresponding to the position information in the following manner and multiply the input signal:
- the cyclic shifting peak-canceling kernel sequence multiplies the maximum amplitude position of the peak-eliminating kernel sequence by the position indicated by the position information of the input signal and multiplies the input signal; or generates a shaping pulse and multiplies the input signal by the shaping pulse.
- the embodiment of the invention further provides a multi-carrier baseband peak elimination device, comprising: K branches, an adder, a peak selection module, an error signal generation module, and an offset pulse generation module;
- K is an integer greater than 1; each branch includes a delay, a digital up-conversion module, a first numerically controlled oscillator, a first multiplier, a second numerically controlled oscillator, a second multiplier, a digital down conversion module, and a phase Reducer
- An input end of the digital up-conversion module and an input end of the delay device are configured to connect a baseband signal, and an output end of the digital up-conversion module is connected to an input end of the first multiplier, the first numerically controlled oscillator The output end is connected to the input end of the first multiplier, and the output end of the first multiplier of the K branches is connected to the input end of the adder, and the output end of the adder is sequentially connected to the peak selection module, and the error signal is generated.
- the digital up-conversion module is configured to: perform N times up-sampling interpolation filtering on the input baseband signal;
- the digital down conversion module is configured to: perform N times of sampling and decimation filtering on the input baseband signal;
- the first numerically controlled oscillator is configured to: generate a complex signal of a predetermined frequency
- the second numerically controlled oscillator is configured to: generate a signal of the same frequency and conjugate as the first numerically controlled oscillator;
- the peak selection module is configured to: filter out a peak signal whose amplitude exceeds a preset threshold in the combined signal output by the adder, and output peak signal amplitude, combined signal phase, and position information of the peak signal in the combined signal ;
- the error signal generating module is configured to: calculate a product of a peak signal amplitude and a combined signal phase to obtain an error signal, and output the error signal and the position information;
- the cancellation pulse generating module is configured to: generate a peak elimination sequence of the position corresponding to the position information according to the position information, and multiply the input signal to output.
- the error signal generating module is configured to calculate an error signal of a product of the peak signal amplitude and the phase of the combined signal in the following manner:
- the calculated real part is a cosine function of the phase of the combined signal and the imaginary part is a complex number of the sine function of the phase of the combined signal, and the product of the complex number and the peak signal amplitude is calculated to obtain an error signal.
- the cancellation pulse generation module is configured to generate a peak elimination sequence of the position corresponding to the position information in the following manner and multiply the input signal:
- the cyclic shifting peak-canceling kernel sequence multiplies the maximum amplitude position of the peak-eliminating kernel sequence by the position indicated by the position information of the input signal and multiplies the input signal; or generates a shaping pulse and multiplies the input signal by the shaping pulse.
- the embodiment of the invention further provides a multi-carrier baseband peak elimination method, including:
- the error signal is multiplied by the conjugate signal of the complex signal of the preset frequency, and the multiplied signal is subjected to N-times decimation filtering to obtain a filtered signal. And generating, according to the position information, a peak elimination sequence of the position corresponding to the position information, and multiplying the filtered signal to obtain a product signal, delaying the baseband signal, and subtracting the product signal to obtain a baseband peak elimination signal.
- the embodiment of the invention further provides a multi-carrier baseband peak elimination method, including:
- the product signal is multiplied by the conjugate signal of the complex signal of the preset frequency, and the multiplied signal is subjected to N-times decimation filtering to obtain a filtered signal. Subtracting the filtered signal after delaying the baseband signal results in a baseband cancellation signal.
- FIG. 1 is a structural diagram of a multi-carrier baseband peak elimination device in an embodiment of the present invention
- FIG. 2 is a schematic diagram of a digital up-conversion module according to an embodiment of the present invention.
- 3 is a schematic diagram of a peak selection module according to an embodiment of the present invention
- 4 is a schematic diagram of an error signal generating module according to an embodiment of the present invention
- FIG. 5 is a schematic diagram of a digital down conversion module according to an embodiment of the present invention.
- FIG. 6 is a schematic diagram of an offset pulse generating module according to an embodiment of the present invention.
- FIG. 7 is another schematic diagram of an offset pulse generating module according to an embodiment of the present invention.
- FIG. 8 is another structural diagram of a multi-carrier baseband peak elimination device in the solution of the embodiment of the present invention. Preferred embodiment of the invention
- the multi-carrier baseband peak elimination device includes K branches, K is an integer greater than 1, and each branch includes a delay unit 101, a digital up-conversion module 102, a first numerically controlled oscillator 103, and a first a multiplier 104, a second numerically controlled oscillator 105, a second multiplier 106, a digital down conversion module 107, an offset pulse generation module 108, and a subtractor 109, the apparatus further includes an adder 111 and a peak selection module 112. And an error signal generating module 113.
- the input of the digital up-conversion module 102 and the delay 101 in each branch is used to connect the baseband signal, and the output of the digital up-conversion module 102 is connected to the input of the first multiplier 104, the output of the first numerically controlled oscillator 103.
- the end is connected to the input end of the first multiplier 104, the output end of the first multiplier 104 of the K branches is connected to the input end of the adder 111, and the output end of the adder 111 is sequentially connected to the peak selection module 112 and the error signal.
- a generating module 113 an output end of the error signal generating module 113 is connected to an input end of the second multiplier 106 of the K branches, and an output end of the second numerically controlled oscillator 105 in each branch is connected to the second multiplier
- the other input terminal of the 106, the output of the second multiplier 106 is sequentially connected to the digital down conversion module 107 and the cancellation pulse generation module 108, and the output of the cancellation pulse generation module 108 is connected to the subtracted end of the subtractor 109, and the delay is delayed.
- the output of the comparator 101 is coupled to the subtraction terminal of the subtractor 109.
- the digital up-conversion module 102 is configured to perform N times up-sampling interpolation filtering on the input baseband signal; the digital down-conversion module 107 is configured to perform N-fold down-sample decimation filtering on the input baseband signal; the first numerically controlled oscillator 103 is used for Generating a complex signal of a predetermined frequency;
- the second numerically controlled oscillator 105 is used to generate the same frequency and conjugate with the first numerically controlled oscillator 103 Signal
- the peak selection module 112 is configured to filter out a peak signal whose amplitude exceeds a preset threshold in the combined signal output by the adder 111, and output peak signal amplitude, combined signal phase, and position information of the peak signal in the combined signal;
- the error signal generating module 113 is configured to calculate a product of the peak signal amplitude and the phase of the combined signal to obtain an error signal, and output the error signal and the position information;
- the ⁇ ⁇ pulse generation module 108 is configured to generate a peak elimination sequence of the position corresponding to the position information based on the position information, and multiply the input signal to output.
- the peak selection module 112 is configured to output the peak signal, the peak signal amplitude, the combined signal phase, and the position information to the error signal generating module 113; the error generating module 13 is configured to use the error
- the signal is output to the second multiplier 106, and the position information is output to the digital down conversion module 107; the digital down conversion module 107 is further configured to output the position information to the cancellation pulse generation module 108.
- the output of the peak selection module 112 is connected to the input of each cancellation pulse generation module 108; the peak selection module 112 is configured to output the peak signal amplitude and the combined signal phase to the error signal generation module 113, and output the position information to The pulse generation module 108 is cancelled.
- the digital up-conversion module 102 includes a shaping filter 201, a ⁇ -up sample module 202, and a plurality of interpolation filters 203.
- the shaping filter 201 is used to pulse the input signal.
- the ⁇ ⁇ ⁇ sample module 202 is used to increase the signal sampling rate by a factor of two.
- the interpolation filter 203 is used to filter out the image signal. After the signal passes through the digital upconversion module 102, the baseband carrier signal is interpolated and filtered to a multiple sample rate.
- the first numerically controlled oscillator 103 is used to generate a complex signal of a specified frequency, the real part being a cosine wave and the imaginary part being a sinusoidal signal.
- the output data of the digital up-conversion module 102 is multiplied by the output data of the first numerically controlled oscillator 103 to achieve the purpose of moving in the frequency domain. After the signals of the two branches are added, one carrier can be distinguished in the frequency domain.
- the peak selection module 112 includes an amplitude phase calculation module 301, an amplitude comparison module 302, and a peak amplitude calculation module 303.
- the amplitude phase calculation module 301 is configured to calculate a signal amplitude and a phase according to a signal of a complex form.
- the amplitude comparison module 302 is used to compare the signal amplitude with The preset threshold comparison, if greater than the threshold, the peak amplitude calculation module 303 outputs a peak amplitude as a signal amplitude minus a threshold. If less than or equal to the threshold, the peak amplitude calculation module 303 outputs a peak amplitude of zero.
- the error signal generating module 113 includes a phase calculating module 401 and a multiplier 402.
- the phase calculating module 401 is configured to calculate the phase angle as a sine function in which the real part is a cosine function of the phase angle and the imaginary part is a phase angle.
- the complex multiplier 402 is configured to multiply the complex number output by the phase calculation module 401 by the input signal to calculate an error signal.
- the digital down conversion module 107 includes: a decimation filter 501 for anti-aliasing; and a N times lower sampling module 502 for reducing the signal sampling rate by N times to restore the original signal. Sample rate.
- the ⁇ pulse generation module 108 can have different implementations, such as the lossless mode of Figure 6 and the lossy mode of Figure 7.
- the cancellation pulse generation module 108 includes a peak elimination core cyclic shift module 601 and a multiplier 602, and the peak elimination kernel cyclic shift module 601 is configured to cyclically shift the peak elimination kernel sequence to maximize the peak elimination kernel sequence.
- the amplitude position is aligned with the position indicated by the position information of the input signal, and the multiplier 602 is configured to multiply the signal of the peak elimination core cyclic shift module 601 by the input signal to obtain an offset pulse sequence.
- the 4th pulse suppression generation module 108 includes an error signal shaping pulse module 701 for generating a shaping pulse, and a multiplier 702 for generating the generated shaping pulse and After the input signals are multiplied, an offset pulse sequence is obtained.
- the method for multi-carrier baseband peak elimination in the structure of the device comprises: multiplying the baseband signal by a ⁇ -times-like interpolation filtering by each branch of each branch, and multiplying the complex signal by a predetermined frequency, wherein ⁇ is greater than 1. Integer; sums the signals obtained by multiplying the two branches to obtain a combined signal, and filters out the peak signal whose amplitude exceeds the preset threshold, and outputs the peak signal amplitude, the combined signal phase, and the peak signal.
- Position information in the combined signal calculating a product of the peak signal amplitude and the phase of the combined signal to obtain an error signal; in each branch of each branch, the error signal and the complex signal of the preset frequency Multiplying the conjugate signals, and multiplying the multiplied signals by ⁇ Filtering to obtain a filtered signal, generating a peak elimination sequence of the position corresponding to the position information according to the position information, and multiplying the filtered signal to obtain a product signal, delaying the baseband signal, and subtracting the product signal to obtain a baseband peak elimination signal.
- another multi-carrier baseband peak-eliminating device includes K branches, K is an integer greater than 1, and each branch includes a delay 801, a digital up-conversion module 802, and a first numerically controlled oscillator 803.
- the apparatus further includes an adder 811, a peak selection module 812, an error signal generation module 813, and an eliminator pulse generation module 814.
- the input terminals of the digital up-conversion module 802 and the delay 801 are used to connect the baseband signals, and the output of the digital up-conversion module 802 is connected to the input of the first multiplier 804, the first numerically controlled oscillator 803
- the output end is connected to the input end of the first multiplier 804, the output end of the first multiplier 804 of the branch is connected to the input end of the adder 811, and the output end of the adder 811 is sequentially connected to the peak selection module 812, the error
- the signal generating module 813 and the canceling pulse generating module 814, the output end of the canceling pulse generating module 814 is connected to an input of the second multiplier 806 of the two branches, and the second numerically controlled oscillator 805 of each branch
- the output is connected to the other input of the second multiplier 806, the output of the second multiplier 806 is connected to the input of the digital downconversion module 807, and the output of the digital downconversion module 807 is connected to the reducer
- the digital up-conversion module 802 is configured to perform ⁇ -times-like interpolation filtering on the input baseband signal;
- the digital down-conversion module 807 is configured to perform ⁇ -time ⁇ -like extraction filtering on the input baseband signal;
- the first numerically controlled oscillator 803 is used for Generating a complex signal of a predetermined frequency;
- a second numerically controlled oscillator 805 is operative to generate a signal of the same frequency and conjugate as the first numerically controlled oscillator;
- the peak selection module 812 is configured to filter out a peak signal whose amplitude exceeds a preset threshold in the combined signal output by the adder 811, and output peak signal amplitude, combined signal phase, and position information of the peak signal in the combined signal;
- the error signal generating module 813 is configured to calculate the product of the peak signal amplitude and the combined signal phase. Go to the error signal and output the error signal and position information;
- the cancellation pulse generation module 814 is configured to generate a peak elimination sequence of the position corresponding to the position information according to the position information of the input signal, and multiply the input signal to output.
- the multi-carrier baseband peak elimination method comprises: multiplying the baseband signal by N times up-sampling interpolation filtering by the branches of the K branches, and multiplying by the complex signal of the predetermined frequency, where K is an integer greater than Adding the signals obtained by multiplying the K branches to obtain a combined signal, filtering out the peak signal whose amplitude exceeds the preset threshold, and outputting the peak signal amplitude, the combined signal phase, and the peak signal Position information in the combined signal; calculating a product of the peak signal amplitude and the combined signal phase to obtain an error signal; generating a peak elimination sequence of the position corresponding to the position information according to the position information and multiplying the error signal to obtain a product signal And multiplying the product signal by a conjugate signal of the complex signal of the preset frequency in each branch of the K branches, and performing N-times decimation filtering on the multiplied signal to obtain a filtered signal And delaying the baseband signal and subtracting the filtered signal to obtain a baseband peak
- each module is the same as those described in the apparatus shown in Fig. 1, and will not be described again here.
- the main difference between the devices of Figures 1 and 8 is that the position of the cancellation pulse generation module is different.
- the pulse cancellation generation module of Figure 1 is implemented at a low sample rate, while the pulse cancellation generation module of Figure 8 is implemented at a high sample rate with the same implementation flow. Comparing the two figures, Figure 1 is superior in the implementation of low-lying samples.
- each module/unit in the above embodiment may be It can be implemented in the form of hardware, or it can be implemented in the form of software function modules. Embodiments of the invention are not limited to any specific form of combination of hardware and software.
- the peak-to-average ratio of the baseband output signal can be effectively reduced, and the pressure of the intermediate frequency peak elimination can be alleviated, thereby improving the overall peak-reduction performance.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Transmitters (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13849344.0A EP2899935B1 (en) | 2012-10-25 | 2013-09-13 | Peak elimination device and method for multicarrier baseband |
JP2015538264A JP5941228B2 (ja) | 2012-10-25 | 2013-09-13 | マルチキャリアベースバンドのピーク除去装置及び方法 |
US14/438,608 US9590766B2 (en) | 2012-10-25 | 2013-09-13 | Peak elimination device and method for multicarrier baseband |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210413020.2A CN103780531B (zh) | 2012-10-25 | 2012-10-25 | 一种多载波基带消峰装置及方法 |
CN201210413020.2 | 2012-10-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014063539A1 true WO2014063539A1 (zh) | 2014-05-01 |
Family
ID=50543977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/083458 WO2014063539A1 (zh) | 2012-10-25 | 2013-09-13 | 一种多载波基带消峰装置及方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9590766B2 (zh) |
EP (1) | EP2899935B1 (zh) |
JP (1) | JP5941228B2 (zh) |
CN (1) | CN103780531B (zh) |
WO (1) | WO2014063539A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3637956A1 (en) * | 2018-10-10 | 2020-04-15 | LG Electronics Inc. -1- | Induction heating device with improved function for distinguishing object |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108141422B (zh) * | 2015-10-15 | 2021-03-26 | 瑞典爱立信有限公司 | 限制聚合基带载波信号的峰或峰群组的方法和峰削减单元 |
CN106209720B (zh) * | 2016-07-28 | 2019-05-03 | 浙江天则通信技术有限公司 | 一种用于cofdm系统的消峰方法 |
CN110417702B (zh) * | 2019-07-23 | 2021-06-15 | 三维通信股份有限公司 | 滤波器系数生成方法、系统和降低信号峰均比的系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1469649A1 (en) * | 2003-04-17 | 2004-10-20 | University Of Southampton | Method and apparatus of peak-to-average power ratio reduction |
CN101076008A (zh) * | 2007-07-17 | 2007-11-21 | 华为技术有限公司 | 信号的削波处理方法和设备 |
CN101136890A (zh) * | 2006-09-01 | 2008-03-05 | 中兴通讯股份有限公司 | 一种优化的多载波信号削波装置及其方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19944558C2 (de) * | 1999-09-17 | 2002-10-10 | Bosch Gmbh Robert | Verfahren zum Senden von Funksignalen und Sender zum Versenden eines Funksignals |
US20030086507A1 (en) * | 2001-11-07 | 2003-05-08 | Jaehyeong Kim | Peak limiting architecture and method |
US7391713B2 (en) * | 2003-12-30 | 2008-06-24 | Kiomars Anvari | Phase rotation technique to reduce Crest Factor of multi-carrier signals |
KR101083944B1 (ko) * | 2005-12-21 | 2011-11-15 | 엘지에릭슨 주식회사 | 입력신호의 전력변화에 따른 적응성 cfr 장치 및 그방법 |
WO2007091434A1 (ja) * | 2006-02-06 | 2007-08-16 | Matsushita Electric Industrial Co., Ltd. | Ofdm送信装置およびその制御方法 |
US7783260B2 (en) * | 2006-04-27 | 2010-08-24 | Crestcom, Inc. | Method and apparatus for adaptively controlling signals |
JP4927585B2 (ja) * | 2007-02-15 | 2012-05-09 | 株式会社日立国際電気 | 送信機 |
CN101110619B (zh) * | 2007-08-27 | 2011-03-02 | 中兴通讯股份有限公司 | 一种ofdma系统中降低峰均比的方法及装置 |
CN101662449B (zh) * | 2009-09-17 | 2012-03-07 | 京信通信系统(中国)有限公司 | 窗式削峰方法 |
CN102244626B (zh) * | 2010-05-12 | 2015-01-28 | 中兴通讯股份有限公司 | 一种降低信号峰均比的方法及装置 |
-
2012
- 2012-10-25 CN CN201210413020.2A patent/CN103780531B/zh not_active Expired - Fee Related
-
2013
- 2013-09-13 JP JP2015538264A patent/JP5941228B2/ja not_active Expired - Fee Related
- 2013-09-13 EP EP13849344.0A patent/EP2899935B1/en not_active Not-in-force
- 2013-09-13 US US14/438,608 patent/US9590766B2/en not_active Expired - Fee Related
- 2013-09-13 WO PCT/CN2013/083458 patent/WO2014063539A1/zh active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1469649A1 (en) * | 2003-04-17 | 2004-10-20 | University Of Southampton | Method and apparatus of peak-to-average power ratio reduction |
CN101136890A (zh) * | 2006-09-01 | 2008-03-05 | 中兴通讯股份有限公司 | 一种优化的多载波信号削波装置及其方法 |
CN101076008A (zh) * | 2007-07-17 | 2007-11-21 | 华为技术有限公司 | 信号的削波处理方法和设备 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3637956A1 (en) * | 2018-10-10 | 2020-04-15 | LG Electronics Inc. -1- | Induction heating device with improved function for distinguishing object |
US11445578B2 (en) | 2018-10-10 | 2022-09-13 | Lg Electronics Inc. | Induction heating device with improved function for distinguishing object |
Also Published As
Publication number | Publication date |
---|---|
CN103780531A (zh) | 2014-05-07 |
JP5941228B2 (ja) | 2016-06-29 |
CN103780531B (zh) | 2018-01-05 |
EP2899935A4 (en) | 2015-10-14 |
US20160261372A1 (en) | 2016-09-08 |
EP2899935B1 (en) | 2018-08-15 |
US9590766B2 (en) | 2017-03-07 |
JP2016500971A (ja) | 2016-01-14 |
EP2899935A1 (en) | 2015-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8514979B2 (en) | Integrated demodulator, filter and decimator (DFD) for a radio receiver | |
CN103840778B (zh) | 带滤波的放大器设备和方法 | |
WO2014063539A1 (zh) | 一种多载波基带消峰装置及方法 | |
CN117040655B (zh) | 超宽带信号抖动的计算方法、装置、电子设备及存储介质 | |
CN101119356B (zh) | 多通道数字上变频系统及其数字上变频方法 | |
Schwingshackl et al. | Polyphase representation of multirate nonlinear filters and its applications | |
CN104467844A (zh) | 一种时间交织模数转换器及方法 | |
CN112671418B (zh) | 一种基于带通采样结构解调器的调解方法及装置 | |
EP1693954B1 (en) | Demodulation circuit for use in receiver using IF sampling scheme | |
CN106134514B (zh) | 基于Farrow结构滤波器的采样率转换方法及装置 | |
CN103066950A (zh) | 一种fir滤波器滤波的方法和滤波器 | |
CN102685055B (zh) | 一种多数据流插值与抽取复用装置及方法 | |
WO2012122908A1 (zh) | 模拟射频信号生成方法及系统 | |
JP2010130185A (ja) | サンプリングレート変換回路 | |
CN101741415B (zh) | 一种全球移动通讯系统中削波的方法和装置 | |
JP6233318B2 (ja) | 周波数オフセット補償装置および周波数オフセット補償方法 | |
CN114866099B (zh) | 滤波方法、装置和电子设备 | |
CN105450230B (zh) | 不具有降频器的连续时间三角积分模拟至数字接收器 | |
JP3953888B2 (ja) | データ伝送装置 | |
Mehra et al. | Reconfigurable Area and Speed Efficient Interpolator Using DALUT Algorithm | |
Mehra et al. | Area Efficient Interpolator Using Half-Band Symmetric Structure | |
JPH10173632A (ja) | 受信装置 | |
CN115794027A (zh) | 信号处理方法、装置、电子设备及存储介质 | |
Devi et al. | Improved maximally flat wideband CIC compensation filter using sharpening technique | |
Singh | Polynomial based Design of CIC Compensation Filter used in Software Defined Radio for Multirate Signal Processing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13849344 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2015538264 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2013849344 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14438608 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |