公开(公告)号：WO2016186998A1

公开(公告)日：2016-11-24

申请号：PCT/US2016/032320

申请日：2016-05-13

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： BOLSTAD, Andrew K. ,  CHISUM, Jonathan D. ,  VIAN, James E.

IPC: H04B1/06

CPC classification number: H04L27/265 ,  G01S3/74 ,  H01Q21/0025 ,  H04B1/0025 ,  H04B7/0617 ,  H04L27/0002

Abstract: An array-based Compressed sensing Receiver Architecture (ACRA) includes an antenna array with two or more antennas connected to two or more ADCs that are clocked at two or more different sampling rates below the Nyquist rate of the incident signals. Comparison of the individual aliased outputs of the ADCs allows for estimation of signal component characteristics, including signal bandwidth, center frequency, and direction-of-arrival (DoA). Multiple digital signal processing (DSP) techniques, such as sparse fast Fourier transform (sFFT), can be employed depending on the type of detection or estimation.

Abstract translation: 基于阵列的压缩感测接收器架构（ACRA）包括天线阵列，其具有连接到两个或更多个ADC的天线阵列，所述两个或更多个ADC以低于入射信号的奈奎斯特速率的两个或多个不同采样率被计时。 ADC的各个混叠输出的比较允许估计信号分量特性，包括信号带宽，中心频率和到达方向（DoA）。 根据检测或估计的类型，可以采用多种数字信号处理（DSP）技术，如稀疏快速傅立叶变换（sFFT）。

公开(公告)号：WO2014120895A1

公开(公告)日：2014-08-07

申请号：PCT/US2014/013794

申请日：2014-01-30

Applicant: QUALCOMM INCORPORATED

Inventor： FERNANDO, Udara C. ,  GUDEM, Prasad Srinivasa Siva

IPC: H04B1/00

CPC classification number: H04W52/0245 ,  H04B1/0007 ,  H04B1/0021 ,  H04B1/0025 ,  H04B1/0028 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/40

Abstract: A wireless device for receiving wireless signals based on channel conditions is described. The wireless device includes a direct sampling path used when operating in a direct sampling mode. The wireless device also includes a zero intermediate frequency path used when operating in a normal sampling mode. The wireless device further includes a first switch coupling a filter module input to an input of the direct sampling path and an input of the zero intermediate frequency path. The wireless device also includes a second coupling a filter module output to an output of the direct sampling path and an output of the zero intermediate frequency path. The first switch and the second switch are configured to switch between the direct sampling path and the zero intermediate frequency path based on a received signal power.

Abstract translation: 描述了一种基于信道条件接收无线信号的无线设备。 无线设备包括当以直接采样模式操作时使用的直接采样路径。 无线设备还包括在正常采样模式下工作时使用的零中频路径。 无线设备还包括将滤波器模块输入耦合到直接采样路径的输入和零中频路径的输入的第一开关。 无线设备还包括第二耦合滤波器模块输出到直接采样路径的输出和零中频路径的输出。 第一开关和第二开关被配置为基于接收信号功率在直接采样路径和零中间路径之间切换。

公开(公告)号：WO2010055475A1

公开(公告)日：2010-05-20

申请号：PCT/IB2009/055017

申请日：2009-11-12

Applicant: NXP B.V. ,  DORIS, Konstantinos ,  JANSSEN, Erwin

Inventor： DORIS, Konstantinos ,  JANSSEN, Erwin

IPC: H04B1/00 ,  H03H17/02 ,  H04N5/44

CPC classification number: H04B1/001 ,  H03H17/06 ,  H03H2218/08 ,  H04B1/0025

Abstract: A multi-channel receiver comprising an ADC and a multi-band, multi-channel selector. The ADC converts a broad-band multi-channel signal into a digital signal. The digital signal is then broken into sub-bands each containing a plurality of channels. A channel selector selects desired channels from the appropriate sub-band. The multi-channel receiver may deliver simultaneous channels equal to the number of channel selectors that have been implemented. The multi-channel receiver may be implemented on a single integrated circuit.

Abstract translation: 一种包括ADC和多频道多通道选择器的多声道接收机。 ADC将宽带多通道信号转换为数字信号。 然后将数字信号分成各自包含多个信道的子带。 信道选择器从适当的子带选择所需信道。 多信道接收机可以提供等于已经实现的信道选择器的数量的同时信道。 多通道接收器可以在单个集成电路上实现。

公开(公告)号：WO2004082189A3

公开(公告)日：2004-12-29

申请号：PCT/US2004006797

申请日：2004-03-05

Applicant: THOMSON LICENSING SA ,  PUGEL MICHAEL ANTHONY

Inventor： PUGEL MICHAEL ANTHONY

IPC: H03D3/00 ,  H04B1/28 ,  H04N5/44 ,  H04N5/50

CPC classification number: H04B1/0025 ,  H03D3/006 ,  H04B1/28 ,  H04N5/4401 ,  H04N5/50

Abstract: A signal receiving apparatus (100) provides a flexible architecture for single or multiple channel reception capability. According to an exemplary embodiment, the signal receiving apparatus (100) includes a front-end processor (20) and one or more channel recovery elements (40 and/or 60). The front-end processor (20) includes an A/D converter (10), a demultiplexer (12), and one or more filters (16, 18). The A/D converter (10) receives analog RF signals and converts the analog RF signals to digital RF signals. The demultiplexer (12) decimates the digital RF signals to generate decimated RF signals. The one or more filters (16, 18) filter the decimated RF signals to generate filtered RF signals. The one or more channel recovery elements (40 and/or 60) process the filtered RF signals to provide baseband signals corresponding to one or more frequency channels.

Abstract translation: 信号接收装置（100）为单信道或多信道接收能力提供灵活的架构。 根据示例性实施例，信号接收装置（100）包括前端处理器（20）和一个或多个信道恢复元件（40和/或60）。 前端处理器（20）包括A / D转换器（10），解复用器（12）和一个或多个滤波器（16,18）。 A / D转换器（10）接收模拟RF信号并将模拟RF信号转换成数字RF信号。 解复用器（12）抽取数字RF信号以产生抽取的RF信号。 一个或多个滤波器（16,18）对抽取的RF信号进行滤波以产生经滤波的RF信号。 一个或多个信道恢复元件（40和/或60）处理滤波的RF信号以提供对应于一个或多个频率信道的基带信号。

公开(公告)号：WO2017004956A1

公开(公告)日：2017-01-12

申请号：PCT/CN2015/099410

申请日：2015-12-29

Applicant: 乐鑫信息科技(上海)有限公司

Inventor： 林豪 ,  展睿

IPC: H04W84/12

CPC classification number: H04L1/0002 ,  H04B1/0025 ,  H04L5/1446 ,  H04W4/70 ,  H04W84/12 ,  H04W88/16 ,  H04W88/181

Abstract: 本发明公开了一种Wi-Fi物联网异构方法，在Wi-Fi物联网中设置至少一Wi-Fi物联网桥接设备，所述Wi-Fi物联网桥接设备采用时分的形式，且所述Wi-Fi物联网桥接设备以降数据速率模式与至少一个长距离物联网设备进行通信。本发明还公开了一种异构物联网架构，包括：无线路由器，其与物联网相连，且所述无线路由器支撑标准Wi-Fi链路；桥接设备，其与所述无线路由器通过标准Wi-Fi链路连接；降数据速率模式Wi-Fi设备，其与所述桥接设备通过降数据速率模式连接。本发明能够实现在由不同基带速率的Wi-Fi物联网子网构成的异构Wi-Fi物联网结构中数据的桥接和交换。

公开(公告)号：WO01010033A3

公开(公告)日：2001-06-21

申请号：PCT/DE2000/002479

申请日：2000-07-28

IPC: H01P7/06 ,  H03M1/34 ,  H03M3/02 ,  H04B1/00 ,  H04B1/16 ,  H03H9/46

CPC classification number: H04B1/0025 ,  H01P7/065 ,  H03M1/34 ,  H04B1/00 ,  H04B1/0003 ,  H04B1/16

Abstract: The invention relates to an analog-to-digital converter for a signal in the gigahertz range, to a millimetric wave receiver comprising the inventive analog-to-digital converter for a signal in the gigahertz range and to a bandpass filter for millimetric waves. The inventive analog-to-digital converter comprises a signal input for receiving an analog signal in the gigahertz range and a tridimensional filter to which the input analog signal is transmitted and which is characterised by a mean frequency f0 and a bandwidth B. Said analog-to-digital converter also comprises a sample-and-hold stage which oversamples the analog signal in a band restricted manner, whereby the Nyquist condition is verified, and a comparator for generating the digital signal, which follows the sample-and-hold stage and transmits the digital signal to a signal output. The inventive analog-to-digital converter allows for the conversion of signals in the gigahertz range into signals of a frequency range which can be directly submitted to a digital signal processing. Thus, the invention provides for a highly cost effective converter characterised by a low sensitivity to interference.

Abstract translation: 本发明涉及模拟 - 数字转换器，用于在千兆赫范围内的信号，并且具有新型模拟 - 数字转换器，用于在千兆赫范围内的信号的毫米波接收机，和用于毫米波的过滤器。 根据本发明的数字 - 模拟 - 数字转换器示出了用于在千兆赫范围内，三维滤波的模拟信号中，向其中输入的模拟信号被提供并且其具有中心频率f 0和带宽B所示的信号输入。 此外，模拟 - 数字转换器是一个采样和保持该过采样模拟输入信号级是频带限制，和Nyquist条件考虑在内，和用于产生所述数字信号的比较器，随后到采样和保持阶段和将数字化的信号提供给信号输出 ， 通过根据本发明的该模拟 - 数字转换器，可以在千兆赫范围内直接在其适合于直接的数字信号处理的频率范围变换信号。 本发明被证明是极具成本效益和小的干扰源。

公开(公告)号：WO0110033A2

公开(公告)日：2001-02-08

申请号：PCT/DE0002479

申请日：2000-07-28

Applicant: DAIMLER CHRYSLER AG ,  LUY JOHANN FRIEDRICH

Inventor： LUY JOHANN-FRIEDRICH

IPC: H01P7/06 ,  H03M1/34 ,  H03M3/02 ,  H04B1/00 ,  H04B1/16

CPC classification number: H04B1/0025 ,  H01P7/065 ,  H03M1/34 ,  H04B1/00 ,  H04B1/0003 ,  H04B1/16

Abstract: The invention relates to an analog-to-digital converter for a signal in the gigahertz range, to a millimetric wave receiver comprising the inventive analog-to-digital converter for a signal in the gigahertz range and to a bandpass filter for millimetric waves. The inventive analog-to-digital converter comprises a signal input for receiving an analog signal in the gigahertz range and a tridimensional filter to which the input analog signal is transmitted and which is characterised by a mean frequency f0 and a bandwidth B. Said analog-to-digital converter also comprises a sample-and-hold stage which oversamples the analog signal in a band restricted manner, whereby the Nyquist condition is verified, and a comparator for generating the digital signal, which follows the sample-and-hold stage and transmits the digital signal to a signal output. The inventive analog-to-digital converter allows for the conversion of signals in the gigahertz range into signals of a frequency range which can be directly submitted to a digital signal processing. Thus, the invention provides for a highly cost effective converter characterised by a low sensitivity to interference.

Abstract translation: 本发明涉及模拟 - 数字转换器，用于在千兆赫范围内的信号，并且具有新型模拟 - 数字转换器，用于在千兆赫范围内的信号的毫米波接收机，和用于毫米波的过滤器。 根据本发明的数字 - 模拟 - 数字转换器示出了用于在千兆赫范围内，三维滤波的模拟信号中，向其中输入的模拟信号被提供并且其具有中心频率f 0和带宽B所示的信号输入。 此外，模拟 - 数字转换器是一个采样和保持该过采样模拟输入信号级是频带限制，和Nyquist条件考虑在内，和用于产生所述数字信号的比较器，随后到采样和保持阶段和将数字化的信号提供给信号输出 ， 借助于该模拟 - 数字转换器，根据本发明可以将千兆赫范围内的信号直接转换成可直接进行数字信号处理的频率范围。 本发明证明非常便宜且噪音低。

公开(公告)号：WO1996021292A1

公开(公告)日：1996-07-11

申请号：PCT/US1995015183

申请日：1995-11-22

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  ELDER, Robert, C.

IPC: H04J01/05

CPC classification number: H04B1/0025 ,  H03D3/006 ,  H03M1/121 ,  H04B1/00 ,  H04B1/0003 ,  H04B1/0032 ,  H04B1/26 ,  H04B1/28 ,  H04J1/05 ,  H04L1/06 ,  H04L1/22 ,  H04W4/18 ,  H04W28/06 ,  H04W88/00

Abstract: A wideband frequency digitizer (10) and method for digitizing multiple bands of a wideband frequency signal. The digitizer (10) and method providing for optimally positioning a segment (402) of the wideband frequency signal within a Nyquist band of an analog-to-digital converter (36). Remaining segments (402) of the wideband frequency signal are closely positioned relative to the first segment such that the entire wideband frequency signal (400) is easily digitized using a single or multiple analog-to-digital converters (36) while reducing or eliminating undesirable spurious signals.

Abstract translation: 一种用于数字化宽带频率信号的多个频带的宽带频率数字化仪（10）和方法。 数字转换器（10）和方法提供了在模数转换器（36）的奈奎斯特频带内最佳地定位宽带频率信号的段（402）。 宽带频率信号的剩余片段（402）相对于第一片段紧密定位，使得整个宽带频率信号（400）能够使用单个或多个模数转换器（36）容易地数字化，同时减少或消除不期望的 杂散信号。

公开(公告)号：WO2016164005A1

公开(公告)日：2016-10-13

申请号：PCT/US2015/024839

申请日：2015-04-08

Applicant: ENTROPIC COMMUNICATIONS, INC.

Inventor： ALDERTON, Martin

IPC: H04B1/10

CPC classification number: H04B1/0025 ,  H04B1/28

Abstract: A low noise block can include a downconverter comprising an oscillator and a mixer, the downconverter configured to downconvert the predetermined frequency bands to intermediate frequency bands, wherein one of the intermediate frequency bands is above Nyquist zone 1; and an analog-to-digital converter having a first input coupled to an output of the downconverter and a second input coupled to receive a sampling signal at a sampling frequency, wherein a frequency of the signal provided to the mixer used to downconvert is selected such that upon conversion to digital symbols by the analog-to-digital converter, aliasing due to the conversion does not cause the one of the intermediate frequency bands above Nyquist zone 1 to fold onto the other intermediate frequency bands.

Abstract translation: 低噪声块可以包括包括振荡器和混频器的下变频器，下变频器被配置为将预定频带向下变频到中频带，其中一个中频带高于奈奎斯特区1; 以及模数转换器，其具有耦合到所述下变频器的输出的第一输入和耦合以以采样频率接收采样信号的第二输入，其中提供给用于下变频的混频器的信号的频率被选择为 在通过模数转换器转换为数字符号时，由于转换而产生的混叠不会使奈奎斯特区1以上的中频带之一折叠到其它中频带上。

公开(公告)号：WO2015017667A1

公开(公告)日：2015-02-05

申请号：PCT/US2014/049166

申请日：2014-07-31

Applicant: SONY CORPORATION ,  FAY, Luke

Inventor： FAY, Luke

IPC: H03M1/12

CPC classification number: H03M1/122 ,  H03D7/165 ,  H03M1/12 ,  H03M1/1245 ,  H04B1/0025

Abstract: A method, computer-readable storage medium, and signal processing apparatus for processing a plurality of input signals. The method includes receiving or generating a first intermediate signal and a second intermediate signal. The first and second intermediate signals are summed and the summed signals are output to a signal analog-to-digital converter having a predetermined sampling frequency.

Abstract translation: 一种用于处理多个输入信号的方法，计算机可读存储介质和信号处理装置。 该方法包括接收或产生第一中间信号和第二中间信号。 将第一和第二中间信号相加，并将求和的信号输出到具有预定采样频率的信号模数转换器。