| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | 校正极坐标发射机时延差的方法、装置与通信系统 | PCT/CN2011/081790 | 2011-11-04 | WO2012059068A1 | 2012-05-10 | 殷为民; 张希坤; 何松柏; 胡世飞 |
本发明实施例提供一种校正极坐标发射机时延差的方法、装置与通信系统，所述方法包括：生成极坐标发射机输出信号的误差矢量幅度EVM；根据所述极坐标发射机的包络支路与相位支路的时延差与所述EVM之间的函数关系以及所述EVM，获取需要补偿的时延差值；根据所述需要补偿的时延差值对所述极坐标发射机的包络支路和/或所述相位支路进行时延补偿。该方法应用范围广，原理简单，易于实现；由于EVM对时延差非常敏感，并且EVM与时延差两者之间存在着函数关系，所以计算得到的时延差可以达到很高的测试精度。 |
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| 22 | Negative amplitude polar transmitter | US12110236 | 2008-04-25 | US08160515B1 | 2012-04-17 | Paul J. Husted; David J. Weber; William J. McFarland; William W. Si |
| A polar transmitter includes a phase monitoring unit for monitoring input modulating data. When a phase transition exceeds a phase transition threshold, the phase monitor unit can signal an amplitude negation unit to invert the amplitude data coupled to the polar amplifier. The phase monitoring unit can also add an offset to the phase data that is provided to a frequency synthesizer. In another embodiment, when the phase transition threshold is exceeded, the phase monitoring unit can trigger inverting differential frequency data coupled to the polar amplifier. In one embodiment, the phase offset and the amplitude negation are applied until a second phase transition value exceeding the phase transition threshold is detected. If such an event is detected, then the input amplitude data is no longer inverted and the phase offset value is no longer added to the modulating data. | ||||||
| 23 | 폴러송신기에서의 진폭변조신호와 위상변조신호 간의 비동기 수준을 측정하는 방법 | KR1020150151070 | 2015-10-29 | KR101732053B1 | 2017-05-24 | 김민수; 이건준 |
| 본발명은폴러송신기에있어서폴러변환기의진폭과위상신호로부터위상변조진폭변조되어합성된신호에대해서진폭변조된 신호와위상변조된신호의시간비 동기가얼마만큼인가측정하기위한알고리즘으로서, 본발명에따른알고리즘은진폭변화에대해서로컬최소값을가지는두 개의시간을측정하고, 측정된두 시간에서의진폭값을비교하여시간지연계산의유효한값을결정하며, 위상신호에대해서는위상신호의변화로부터주파수를계산하여주파수의변화의로컬최대값을가지는시간을얻어내어, 진폭값의로컬최소값을나타내는시각과위상변화의로컬최대값을나타내는시각간의차이값으로위상변조신호와진폭변조된신호의시간차이를계산하는부분을포함한다. | ||||||
| 24 | Polar Transmitter and Method for Generating a Transmit Signal Using a Polar Transmitter | US15621214 | 2017-06-13 | US20180013455A1 | 2018-01-11 | Nereo Markulic; Jan Craninckx |
| A polar transmitter provided for transmitting a phase/frequency modulated and amplitude modulated transmit signal and a method for generating a transmit signal using a polar transmitter are described. An example polar transmitter comprises a phase locked loop for generating a phase/frequency modulated precursor of the transmit signal. The phase locked loop comprises at its input a phase error detection unit for detecting a phase error of the precursor fed back from the output of the phase locked loop to the phase error detection unit as a feedback signal. The polar transmitter comprises a digital amplitude modulator for amplitude modulation of the precursor, resulting in the transmit signal. The digital amplitude modulator is arranged within the phase locked loop for amplitude modulation of the precursor before being output by the PLL. The phase error detection unit is further provided for detecting the amplitude of the feedback signal. | ||||||
| 25 | Digital modulation jitter compensation for polar transmitter | US13412533 | 2012-03-05 | US09699014B2 | 2017-07-04 | Markus Schimper; Franz Kuttner |
| This disclosure is directed towards techniques and methods of suppressing the effect of modulated clock jitter in a digital to analog conversion (DAC) circuit of a polar modulator in a transceiver. A phase locked loop (PLL) in a modulator circuit may introduce a deterministic jitter in DAC generated pulses which may lead to amplitude variations in the DAC generated pulses. The clock jitter may change the duty cycle of the input amplitude to the DAC which may result in a variation of the output of the DAC generated pulse. A digital pre-distortion or digital multiplier circuit may be introduced before the DAC circuit to increase or decrease the DAC amplitude to compensate for the pulse width modulation. | ||||||
| 26 | Dynamic envelope elimination and restoration polar transmitter | US14601935 | 2015-01-21 | US09763195B2 | 2017-09-12 | Dan Wolberg; Ofer Blonskey |
| Devices and methods for increasing and maximizing power efficiency in polar and Cartesian transmitters are provided. By way of example, an electronic device includes a transmitter configured to receive an in-phase/quadrature (I/Q) signal, generate an amplitude envelope signal based on the I/Q signal, decompose the amplitude envelope signal into an envelope amplitude portion and an envelope phase portion, and to dynamically switch between performing a polar modulation of the I/Q signal and performing an I/Q modulation of the I/Q signal based at least in part on an amplitude value of the envelope phase portion. | ||||||
| 27 | Pseudo-polar modulation for radio transmitters | US10639164 | 2003-08-11 | US07126999B2 | 2006-10-24 | Paul W. Dent |
| Methods of modulating a radio transmitter. An amplitude modulation signal is generated based on in-phase (I) and quadrature (Q) components of an information signal, and so that it has a reduced predetermined characteristic compared to the magnitude of the I and Q components of the information signal. A complex signal is formed that has substantially the same phase angle variation as the I and Q components of the information signal so that the product of the complex signal and the amplitude modulation signal is substantially equal to the information signal. | ||||||
| 28 | Pseudo-polar modulation for radio transmitters | US10639164 | 2003-08-11 | US20050046507A1 | 2005-03-03 | Paul Dent |
| Methods of modulating a radio transmitter. An amplitude modulation signal is generated based on in-phase (I) and quadrature (Q) components of an information signal, and so that it has a reduced predetermined characteristic compared to the magnitude of the I and Q components of the information signal. A complex signal is formed that has substantially the same phase angle variation as the I and Q components of the information signal so that the product of the complex signal and the amplitude modulation signal is substantially equal to the information signal. | ||||||
| 29 | Amplitude modulation circuit in polar transmitter and method for calibrating amplitude offset in polar transmitter | US13279319 | 2011-10-23 | US08737936B2 | 2014-05-27 | Hsin-Hung Chen; Hsiang-Hui Chang; Chun-Pang Wu; Yung-Yu Lin; Jong-Woei Chen |
| An amplitude modulation circuit in a polar transmitter includes a digital-to-analog converter (DAC), a filter, a gm stage, and a calibration module. The DAC is arranged to be coupled to an amplitude modulation signal input in a normal mode. The filter is coupled to the DAC, and the gm stage is coupled to the filter. The calibration module has an input coupled to the gm stage, and an output coupled to a node on a path between the DAC and the gm stage. A method for calibrating an amplitude offset in the polar transmitter includes: generating an amplitude offset calibration signal according to an amplitude modulation signal generated from the gm stage; and transmitting the amplitude offset calibration signal via the output of the calibration module to a node on a path between the DAC and the gm stage so as to calibrate the amplitude offset. | ||||||
| 30 | Amplitude modulation circuit in polar transmitter and method for calibrating amplitude offset in polar transmitter | US12335540 | 2008-12-16 | US08073406B2 | 2011-12-06 | Hsin-Hung Chen; Hsiang-Hui Chang; Chun-Pang Wu; Yung-Yu Lin; Jong-Woei Chen |
| An amplitude modulation circuit in a polar transmitter and a method for calibrating amplitude offset in the polar transmitter are provided. The amplitude modulation circuit includes a digital-to-analog converter (DAC), a low pass filter (LPF), a gm stage, and a calibration module. The DAC is coupled to an amplitude modulation signal input. The LPF is coupled to the DAC, and the gm stage is coupled to the LPF. The calibration module has an input coupled to the gm stage, and an output coupled to a node on a path between the DAC and the gm stage. The method includes: generating an amplitude offset calibration signal according to an amplitude modulation signal generated from the gm stage; and transmitting the amplitude offset calibration signal via the output of the calibration module to a node on a path between the DAC and the gm stage so as to calibrate the amplitude offset. | ||||||
| 31 | Amplitude-modulation signal and phase-modulation signal delay adjustment for polar transmitter | US15268955 | 2016-09-19 | US09867155B1 | 2018-01-09 | Stefan Tertinek |
| Methods and apparatus for calibrating a polar transmitter are provided. Calibration circuitry is configured to generate an adjustment signal that communicates an amplitude modulation/phase modulation (AMPM) delay value to AMPM delay circuitry that is configured to delay, based at least on the AMPM delay value, output of a signal by digital signal processing circuitry (DSP) in the polar transmitter. The calibration circuitry includes signal generation circuitry, estimation circuitry, and delay circuitry. The signal generation circuitry is configured to generate a calibration signal to control the polar transmitter to generate a calibration transmit signal. The estimation circuitry is configured to receive a result signal that is based on the calibration transmit signal and estimate the AMPM delay value based at least on the result signal. The delay circuitry is configured to provide an adjustment signal to communicate the estimated AMPM delay value to the AMPM delay circuitry. | ||||||
| 32 | METHODS AND APPARATUS FOR RECONSTRUCTING AMPLITUDE MODULATION SIGNALS IN POLAR MODULATION TRANSMITTERS | US12123611 | 2008-05-20 | US20090291648A1 | 2009-11-26 | Wayne S. Lee |
| Methods and apparatus for reconstructing discrete-time amplitude modulation signals in polar modulation transmitters. An exemplary polar modulation transmitter includes a symbol generator, a rectangular-to-polar converter, a peak phase detector, and an amplitude modulation reconstruction circuit. The symbol generator generates rectangular-coordinate modulation symbols from which the rectangular-to-polar converter generates an amplitude modulation signal containing discrete-time amplitude samples and an angle modulation signal containing discrete-time angle samples. The peak phase detector circuit detects phase reversals or near phase reversals represented in samples of the angle modulation signal. The amplitude modulation reconstruction circuit responds by reconstructing samples in the amplitude modulation signal that correspond to detected phase reversals or a near phase reversals represented in samples of the angle modulation signal. | ||||||
| 33 | Two-point modulation polar transmitter architecture and method for performance enhancement | US11471147 | 2006-06-20 | US07579922B2 | 2009-08-25 | Henrik T. Jensen; Brima B. Ibrahim |
| A polar transmitter includes a two-point modulation phase-locked loop (PLL) for producing an RF signal with a wide bandwidth. The PLL includes a first input for receiving a phase signal of a variable-envelope modulated signal and providing the phase signal along a first signal path to produce a first frequency modulation signal and a second input for receiving the phase signal and providing the phase signal along a second signal path to produce a second frequency modulation signal. The PLL further includes a voltage controlled oscillator (VCO) having two modulation points, one for receiving the first frequency modulation signal and the other for receiving the second frequency modulation signal. The VCO is controlled by an aggregate of the first frequency modulation signal and the second frequency modulation signal to up-convert the phase signal from an IF to an RF to produce the RF signal with a wide bandwidth. | ||||||
| 34 | Adaptive compensation of nonlinear frequency distortion in polar transmitters based on a least squares estimation | US13326749 | 2011-12-15 | US08798194B2 | 2014-08-05 | Bruno Jechoux; Giuseppe Li Puma; Yanzhong Dai |
| The present invention relates to a communication system having a digital to analog converter, a first input, a summation component, and a compensation unit. The converter is configured to receive a first. The first input is configured to receive a phase modulation signal. The compensation unit includes one or more inputs and is configured to measure amplitude samples of the first signal at a first of the one or more inputs and to generate a correction signal according to the one or more inputs. The correction signal at least partially accounts for estimated distortions of the phase modulation signal from the amplitude modulation path. The summation component is configured to receive the phase modulation signal and the correction signal and to generate a corrected phase modulation signal as a result. | ||||||
| 35 | Method and apparatus for modulation path delay mismatch compensation in a polar modulation transmitter | US11313032 | 2005-12-20 | US07483680B2 | 2009-01-27 | Lars Sundström |
| A polar modulation transmitter offers a split architecture for determining amplitude modulation path delay of the transmitter and comprises a split supply modulation circuit and a split power amplifier circuit. The split supply modulation circuit includes a common supply input and is configured to receive a common amplitude-modulation signal at respective signal inputs and output first and second modulated supply signals responsive to the common amplitude-modulation signal. The split power amplifier circuit includes first and second supply inputs each coupled to one of the respective modulated supply signals, first and second signal inputs and first and second outputs each responsive to the respective supply and signal inputs, the split power amplifier circuit being configured to receive a common phase-modulation signal at its signal inputs and combine its outputs to form a signal having amplitude modulations responsive to the common amplitude-modulation signal and phase modulations responsive to the common phase-modulation signal. | ||||||
| 36 | Method and apparatus for modulation path delay mismatch compensation in a polar modulation transmitter | US11313032 | 2005-12-20 | US20070142005A1 | 2007-06-21 | Lars Sundstrom |
| A polar modulation transmitter offers a split architecture for determining amplitude modulation path delay of the transmitter and comprises a split supply modulation circuit and a split power amplifier circuit. The split supply modulation circuit includes a common supply input and is configured to receive a common amplitude-modulation signal at respective signal inputs and output first and second modulated supply signals responsive to the common amplitude-modulation signal. The split power amplifier circuit includes first and second supply inputs each coupled to one of the respective modulated supply signals, first and second signal inputs and first and second outputs each responsive to the respective supply and signal inputs, the split power amplifier circuit being configured to receive a common phase-modulation signal at its signal inputs and combine its outputs to form a signal having amplitude modulations responsive to the common amplitude-modulation signal and phase modulations responsive to the common phase-modulation signal. | ||||||
| 37 | Radial resistive polar coordinate date takeoff transmitter for a servo control | US50775155 | 1955-05-11 | US3320503A | 1967-05-16 | SCHOOLEY ALLEN H; BENNETT WHITELEY ROBERT |
| 38 | Polar modulation transmitter, adaptive distortion compensation processing system, polar modulation transmission method, and adaptive distortion compensation processing method | US12159469 | 2006-12-26 | US08050637B2 | 2011-11-01 | Yoshito Shimizu; Tomoya Urushihara |
| An object of the invention is to provide a polar modulation transmitter that can perform adaptive distortion compensation processing without the need for a synchronization adjustment circuit for synchronizing an input baseband signal and an output signal of a power amplifier. An adaptive operation control section 1501 measures the unbalance amount of an output spectrum of a power amplifier 1 and a coefficient adjustment determination section of the adaptive operation control section 1501 performs iteration control so that if the unbalance amount is equal to or greater than a predetermined threshold value, coefficient information output to a distortion compensation processing circuit 1301 is adjusted and an adjustment is made to distortion compensation processing in the distortion compensation processing circuit 1301 and if the unbalance amount is less than the predetermined threshold value, the coefficient information is maintained, whereby the characteristic change of the power amplifier 1 at the environmental temperature change time can be adaptively compensated for without using a synchronization adjustment circuit for synchronizing an input baseband signal and an output signal from the power amplifier 1. | ||||||
| 39 | 一种基于接收信号强度比且不依赖高度的三维可见光定位方法 | CN202211186972.5 | 2022-09-28 | CN115436878A | 2022-12-06 | 徐旭慧; 沈明; 仇煜; 胡阳; 王战; 陈杰敏; 何星慰; 徐洁 |
| 本发明涉及一种基于接收信号强度比且不依赖高度的三维可见光定位方法，包括布置多个发射机，确定每个发射机的三维坐标；接收机提取接收信号强度，结合发射机对应的三维坐标，建立关于接收机坐标和接收信号强度比的线性方程组；计算线性方程组的解，得出接收机的水平坐标；利用求得的水平坐标修正方程组，再得出接收机与发射机的相对高度，最终得到接收机的三维坐标。本发明的有益效果是：本发明利用单个光电二极管对LED灯的接收信号强度进行测量，通过作比值和伪线性化的方式实现了对接收机的三维定位，一方面，该发明克服了现有方法对先验高度参数的依赖，另一方面，在有限的参数情况下，依然能够保持水平定位的精度。 | ||||||
| 40 | 区。深部开采矿井富水区电性源瞬变电磁探查方法 | CN201410628923.1 | 2014-11-10 | CN104375194B | 2017-01-11 | 翟明华; 范建国; 郭信山; 李术才; 徐加利; 王慧涛; 孙怀凤 |
| 本发明公开了一种深部开采矿井富水区电性源瞬变电磁探查方法，包括以下步骤：步骤1在地面上确定放置电性源两个供电电极A和B的坐标；并在相应的位置放置两个供电电极A和B，且将供电电极A和B通过导线连接；步骤2将发射机与接收机进行石英钟同步；步骤3将发射机固定在地面，且携带接收机下井到达指定位置；步骤4地面发射机开始工作，通过发电机和发射机向地下供双极型矩形电流波；步骤5在井下连接接收机和接收磁探头，同时进行双路接收，采集梯度磁场量；步骤6沿需要探测的巷道行走完成所有探测；步骤7记录巷道在地面的位置及与发射电极的相对位置；步骤10根据上面的参数，得到最优的地表模型，根据地表模型判断富水区或贫水 | ||||||
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