公开(公告)号：US10003426B2

公开(公告)日：2018-06-19

申请号：US15336061

申请日：2016-10-27

申请人： Zhiping Jiang

发明人： Zhiping Jiang

IPC分类号： H04B10/077 ,  H04J14/02 ,  H04B10/079 ,  H04B10/548 ,  H04L5/00

CPC分类号： H04J14/021 ,  H04B10/0773 ,  H04B10/0775 ,  H04B10/07955 ,  H04B10/07957 ,  H04B10/548 ,  H04B2210/075 ,  H04J14/0213 ,  H04J14/0221 ,  H04J14/0256 ,  H04L5/0008 ,  H04L5/0048 ,  H04L27/0004 ,  H04L27/0014 ,  H04L27/02

摘要： Systems and methods for performing wavelength conflict detection are provided. These are to detect situations in optical networks where two instances of the same wavelength channel have been added. Wavelength conflict detection is performed for each of a plurality of possible wavelength channels that could be present in an optical signal, each wavelength channel that is present modulated by a pilot tone signal with a respective pilot tone frequency, the pilot tone signal carrying M-ary pilot tone data, M=2n, n≥1, with a respective one of M different sequences being used to represent each of M possible data values over a data value period. Conflict detection for each wavelength channel involves performing correlation peak detection using each of the M different sequences to determine correlation peaks for each of the M different sequences, and, based on the determined correlation peaks, determining whether multiple instances of the wavelength channel are present in the optical signal.

公开(公告)号：US20180131504A1

公开(公告)日：2018-05-10

申请号：US15343613

申请日：2016-11-04

申请人： Commissariat A L'Energie Atomique et aux Energies Alternatives ,  Cornell University

发明人： Michael PELISSIER ,  Christoph Emanuel STUDER

IPC分类号： H04L7/00 ,  H04L12/12 ,  H04L27/00 ,  H04L27/12

CPC分类号： H04L7/0016 ,  H03M7/30 ,  H03M7/3062 ,  H04L12/12 ,  H04L27/0004 ,  H04L27/12

摘要： A compressed sensing method based on non-uniform wavelet bandpass sampling. A K-sparse signal of interest is projected onto a sequence of waveforms succeeding one another at the bandpass sampling rate, the waveforms belonging to an overcomplete dictionary, the parameters of the waveforms depending on the characteristics of the bands of the signal. The correlation values are then non-uniformly sampled to provide a compressed representation of the signal.

公开(公告)号：US20170244509A1

公开(公告)日：2017-08-24

申请号：US15336061

申请日：2016-10-27

申请人： ZHIPING JIANG

发明人： ZHIPING JIANG

IPC分类号： H04J14/02 ,  H04B10/548 ,  H04L5/00 ,  H04B10/079

CPC分类号： H04J14/021 ,  H04B10/0773 ,  H04B10/0775 ,  H04B10/07955 ,  H04B10/07957 ,  H04B10/548 ,  H04B2210/075 ,  H04J14/0213 ,  H04J14/0221 ,  H04J14/0256 ,  H04L5/0008 ,  H04L5/0048 ,  H04L27/0004 ,  H04L27/0014 ,  H04L27/02

摘要： Systems and methods for performing wavelength conflict detection are provided. These are to detect situations in optical networks where two instances of the same wavelength channel have been added. Wavelength conflict detection is performed for each of a plurality of possible wavelength channels that could be present in an optical signal, each wavelength channel that is present modulated by a pilot tone signal with a respective pilot tone frequency, the pilot tone signal carrying M-ary pilot tone data, M=2n, n≧1, with a respective one of M different sequences being used to represent each of M possible data values over a data value period. Conflict detection for each wavelength channel involves performing correlation peak detection using each of the M different sequences to determine correlation peaks for each of the M different sequences, and, based on the determined correlation peaks, determining whether multiple instances of the wavelength channel are present in the optical signal.

公开(公告)号：US20150071328A1

公开(公告)日：2015-03-12

申请号：US14025763

申请日：2013-09-12

申请人： KING ABULAZIZ CITY FOR SCIENCE AND TECHNOLOGY ,  KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

发明人： ZAHID SALEEM ,  SAMIR AL-GHADHBAN ,  TAREQ Y. AL-NAFFOURI

IPC分类号： H04B1/10

CPC分类号： H04W16/14 ,  G06K9/00516 ,  G06K9/0053 ,  G06K9/0057 ,  H04B1/719 ,  H04B2201/692 ,  H04L27/0004 ,  H04L27/0006

摘要： The peak detection method using blind source separation extracts true peaks from noisy peaks in a more robust way that does not require any a priori information. Information regarding true peak location is obtained by thresholding the output of a wavelet transform. The value of the threshold is dependent on noise variance. While noise variance is normally unknown, the present method implements a blind source separation technique to calculate the noise variance. The blind source separation technique does not require information of the incoming signal or the channel noise, and hence is suitable for CR (cognitive radio) peak detection.

摘要翻译： 使用盲源分离的峰检测方法以更鲁棒的方式从噪声峰提取真实峰值，其不需要任何先验信息。 通过阈值化小波变换的输出来获得关于真峰位置的信息。 阈值取决于噪声方差。 虽然噪声方差通常是未知的，但是本方法实现了盲源分离技术来计算噪声方差。 盲源分离技术不需要输入信号或信道噪声的信息，因此适用于CR（认知无线电）峰值检测。

公开(公告)号：US08958750B1

公开(公告)日：2015-02-17

申请号：US14025763

申请日：2013-09-12

申请人： King Fahd University of Petroleum and Minerals ,  King Abdulaziz City for Science and Technology

发明人： Zahid Saleem ,  Samir Al-Ghadhban ,  Tareq Y. Al-Naffouri

IPC分类号： H04B15/00 ,  H04B17/00 ,  H03F1/26 ,  H04B1/10

CPC分类号： H04W16/14 ,  G06K9/00516 ,  G06K9/0053 ,  G06K9/0057 ,  H04B1/719 ,  H04B2201/692 ,  H04L27/0004 ,  H04L27/0006

摘要： The peak detection method using blind source separation extracts true peaks from noisy peaks in a more robust way that does not require any a priori information. Information regarding true peak location is obtained by thresholding the output of a wavelet transform. The value of the threshold is dependent on noise variance. While noise variance is normally unknown, the present method implements a blind source separation technique to calculate the noise variance. The blind source separation technique does not require information of the incoming signal or the channel noise, and hence is suitable for CR (cognitive radio) peak detection.

摘要翻译： 使用盲源分离的峰检测方法以更鲁棒的方式从噪声峰提取真实峰值，其不需要任何先验信息。 通过阈值化小波变换的输出来获得关于真峰位置的信息。 阈值取决于噪声方差。 虽然噪声方差通常是未知的，但是本方法实现了盲源分离技术来计算噪声方差。 盲源分离技术不需要输入信号或信道噪声的信息，因此适用于CR（认知无线电）峰值检测。

公开(公告)号：US20140376571A1

公开(公告)日：2014-12-25

申请号：US14478011

申请日：2014-09-05

申请人： Astrapi Corporation

发明人： Jerrold Prothero ,  Nigel Jones

IPC分类号： H04L27/36 ,  H04L27/34 ,  H04L27/00

CPC分类号： H04L27/363 ,  H04L27/0004 ,  H04L27/3494

摘要： Methods and systems for communicating are disclosed. A method includes obtaining input communication symbols selected from a set of communication symbols, converting input communication symbols into transmittable waveforms using non-periodic functions, and transmitting transmittable waveforms over a communication channel. Another method includes receiving transmittable waveforms constructed using non-periodic functions and transmitted over a communication channel, and demodulating transmittable waveforms. A system includes a modulator adapted to obtain input communication symbols selected from a set of communication symbols and adapted to convert input communication symbols into transmittable waveforms using non-periodic functions, and a transmitter or transceiver adapted to transmit transmittable waveforms over a communication channel. Another system includes a receiver or transceiver adapted to receive transmittable waveforms transmitted over a communication channel and constructed using non-periodic functions, and a demodulator adapted to demodulate transmittable waveforms.

摘要翻译： 公开了用于通信的方法和系统。 一种方法包括获得从一组通信符号中选择的输入通信符号，使用非周期性函数将输入通信符号转换成可发送波形，以及通过通信信道发送可发送波形。 另一种方法包括接收使用非周期函数构造并通过通信信道发送的可发送波形，以及对可发送波形进行解调。 一种系统包括调制器，其适于获得从一组通信符号中选择的输入通信符号，并且适于使用非周期性功能将输入通信符号转换为可发送波形，以及适于通过通信信道发送可发送波形的发射器或收发器。 另一种系统包括适于接收通过通信信道发送并且使用非周期性功能构成的可发送波形的接收器或收发器，以及适于对可发送波形进行解调的解调器。

公开(公告)号：US08824544B2

公开(公告)日：2014-09-02

申请号：US13477282

申请日：2012-05-22

申请人： Lam Huy Nguyen ,  Thong Do

发明人： Lam Huy Nguyen ,  Thong Do

IPC分类号： H04B1/66

CPC分类号： H04L27/0006 ,  G01S13/0209 ,  G01S13/90 ,  H04L27/0004

摘要： A system of recovering information wide band signal comprising a receiver(s) for receiving data signal responses from a target area; the received data signal responses having information missing at a plurality of frequencies; at least one processor for recovery of data from the data signal responses operatively connected to the receiver(s); a first memory comprising time-shifted responses based upon the wide band signal response, a second memory comprising a plurality of spectrally filtered time-shifted responses; whereby the first and second memories operate to provide data to the at least one processor compensate for the information missing at the plurality of frequencies. Also, a method of the recovery of missing frequency bands comprising receiving data signal responses from a target area using a first dictionary comprising time-shifted responses based upon spectra containing the at least one predetermined spectrum, and a second dictionary comprising a plurality of spectrally filtered time-shifted responses.

摘要翻译： 一种恢复信息宽带信号的系统，包括用于从目标区域接收数据信号响应的接收机; 所接收的数据信号响应具有在多个频率处丢失的信息; 用于从可操作地连接到接收器的数据信号响应恢复数据的至少一个处理器; 包括基于宽带信号响应的时移响应的第一存储器，包括多个频谱滤波的时移响应的第二存储器; 由此第一和第二存储器操作以向至少一个处理器提供数据来补偿在多个频率处丢失的信息。 另外，恢复丢失频带的方法包括使用包括基于包含至少一个预定频谱的频谱的时移响应的第一字典从目标区域接收数据信号响应，以及包括多个频谱滤波的第二字典 时移回应。

公开(公告)号：US20140204981A1

公开(公告)日：2014-07-24

申请号：US14235351

申请日：2012-07-27

申请人： Artur Wilhelm Suntken

发明人： Artur Wilhelm Suntken

IPC分类号： H04B1/707

CPC分类号： H04B1/707 ,  G01S7/032 ,  G01S7/282 ,  G01S13/0209 ,  G01S13/284 ,  G01S2007/2886 ,  H03B28/00 ,  H03D2200/0019 ,  H03K5/1534 ,  H04B1/7172 ,  H04B1/7174 ,  H04L27/0004

摘要： The method for operating a UWB device having at least one transmitting antenna and/or at least one receiving antenna comprises the following steps: controlling the transmitting antenna (12) or the receiving antenna (12′) with a control pulse signal (13,13′) having a sequence of substantially sinusoidal pulses of alternating polarity and differing amplitudes and particularly having the waveform of a fifth-order Gaussian pulse signal, wherein the transmitting antenna (12) can be alternately supplied with current pulses of differing polarity and differing magnitude by switching on and off first electronic switch units (16) that are coupled to the transmitting antenna (12) and have resistances associated with the amplitudes of the pulses to be generated, wherein each first switch unit (16) has a specifiable, particularly equal, number of first switching transistors (18,19), each having substantially identical on-state resistance values (R), wherein the resistance of a first switch unit is adjusted either by using only one of the first switching transistors (18,19) or by using a plurality of first switching transistors (18,19) connected in parallel, and wherein the first switch units (16) are controlled sequentially according to a specifiable temporal schema and each for a control time interval of a predetermined length.

摘要翻译： 用于操作具有至少一个发射天线和/或至少一个接收天线的UWB设备的方法包括以下步骤：利用控制脉冲信号（13,13）来控制发射天线（12）或接收天线（12'） '）具有交替极性和不同幅度的基本正弦波脉冲序列，并且特别地具有五阶高斯脉冲信号的波形，其中发射天线（12）可以交替地被提供具有不同极性和不同幅度的电流脉冲，由 打开和关闭耦合到所述发射天线（12）并且具有与要产生的脉冲的振幅相关联的电阻的第一电子开关单元（16），其中每个第一开关单元（16）具有可指定的，特别相等的， 第一开关晶体管（18,19）的数量，每个具有基本上相同的导通电阻值（R），其中第一开关单元 通过仅使用第一开关晶体管（18,19）中的一个或通过并联连接的多个第一开关晶体管（18,19）进行调整，并且其中第一开关单元（16）根据 可指定的时间模式，并且每个用于预定长度的控制时间间隔。

公开(公告)号：US08411766B2

公开(公告)日：2013-04-02

申请号：US12078979

申请日：2008-04-09

申请人： Shiquan Wu ,  Jung Yee

发明人： Shiquan Wu ,  Jung Yee

IPC分类号： H04K1/10

CPC分类号： H04L27/0004 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0062 ,  H04L5/0073 ,  H04L27/0006 ,  H04W16/14

摘要： A wireless communication system comprises a wavelet analyzer and a wavelet signal generator. The wavelet analyzer is operable to analyze wireless signals within a frequency and time map of a communications spectrum, whereby the wavelet analyzer is adapted to determine one or more available cells within the frequency and time map. The wavelet signal generator is operable to generate one or more wavelet signals for transmission within the determined one or more available cells of the frequency and time map based on the analyzed wireless signals within the frequency and time map.

公开(公告)号：US20120263031A1

公开(公告)日：2012-10-18

申请号：US13447641

申请日：2012-04-16

申请人： Jerrold D. PROTHERO ,  Nigel JONES

发明人： Jerrold D. PROTHERO ,  Nigel JONES

IPC分类号： H04J9/00 ,  H04J3/00

CPC分类号： H04L27/363 ,  H04L27/0004 ,  H04L27/3494

摘要： Methods and systems for communicating are disclosed. A method includes obtaining input communication symbols selected from a set of communication symbols, converting input communication symbols into transmittable waveforms using non-periodic functions, and transmitting transmittable waveforms over a communication channel. Another method includes receiving transmittable waveforms constructed using non-periodic functions and transmitted over a communication channel, and demodulating transmittable waveforms. A system includes a modulator adapted to obtain input communication symbols selected from a set of communication symbols and adapted to convert input communication symbols into transmittable waveforms using non-periodic functions, and a transmitter or transceiver adapted to transmit transmittable waveforms over a communication channel. Another system includes a receiver or transceiver adapted to receive transmittable waveforms transmitted over a communication channel and constructed using non-periodic functions, and a demodulator adapted to demodulate transmittable waveforms.

摘要翻译： 公开了用于通信的方法和系统。 一种方法包括获得从一组通信符号中选择的输入通信符号，使用非周期性函数将输入通信符号转换成可发送波形，以及通过通信信道发送可发送波形。 另一种方法包括接收使用非周期函数构造并通过通信信道发送的可发送波形，以及对可发送波形进行解调。 一种系统包括调制器，其适于获得从一组通信符号中选择的输入通信符号，并且适于使用非周期性功能将输入通信符号转换为可发送波形，以及适于通过通信信道发送可发送波形的发射器或收发器。 另一种系统包括适于接收通过通信信道发送并且使用非周期性功能构成的可发送波形的接收器或收发器，以及适于对可发送波形进行解调的解调器。