System and method for adaptive simultaneous transmit and receive leakage cancellation

    公开(公告)号:US10393859B2

    公开(公告)日:2019-08-27

    申请号:US15295084

    申请日:2016-10-17

    Abstract: Method and apparatus for leakage signal cancellation in a simultaneous transmit and receive RF system includes: generating a digital transmit signal for transmission from the system; receiving a receive signal produced by reflection of the transmit signal from an object or generated by a second RF system; adaptively filtering the transmit signal by an adaptive finite input response (FIR) filter; calculating filter coefficients for the adaptive FIR filter in real-time at a different sampling rate; adaptively inputting the calculated filter coefficients to the adaptive FIR filter to generate a cancellation signal in real-time; and applying the cancellation signal to the receive signal to cancel leakage in the receive signal to generate an optimum receive signal.

    Parameterizable bandpass delta-sigma modulator

    公开(公告)号:US10181862B1

    公开(公告)日:2019-01-15

    申请号:US15879024

    申请日:2018-01-24

    Abstract: A delta-sigma modulator (DSM) includes: a first summation circuit coupled to an input signal for subtracting an error feedback signal from the input signal; a tunable signal transfer function coupled to the first summation circuit for setting a desired pole in a frequency response of the DSM; a second summation circuit coupled to the tunable signal transfer function for adding a noise transfer function to an output of the tunable signal transfer function; and a quantizer coupled to the second summation circuit for quantizing an output of the second summation circuit to generate an output of the DSM. The output of the DSM is used as feedback to the first summation circuit as the error feedback signal, and the tunable signal transfer function is dynamically tuned to allow selecting and tuning a center frequency and a bandwidth of the DSM.

    APPARATUS AND METHOD FOR ALLOCATING RESOURSES USING PRIORITIZATION OF REQUESTS AND UPDATING OF REQUESTS
    15.
    发明申请
    APPARATUS AND METHOD FOR ALLOCATING RESOURSES USING PRIORITIZATION OF REQUESTS AND UPDATING OF REQUESTS 有权
    使用优先申请和更新要求分配资源的设备和方法

    公开(公告)号:US20160147564A1

    公开(公告)日:2016-05-26

    申请号:US14553139

    申请日:2014-11-25

    CPC classification number: G06F9/4818 G06F9/5022 G06F9/5027 G06F2209/5021

    Abstract: A system and method for allocating resources receive one or more resource requests describing tasks, each of the one or more resource requests having a request priority, a requested configuration type, and a requestor identifier. In a winner-take-all circuit, all of the existing resource priorities within each configuration of the requested configuration type are compared to determine a highest-priority task occupying each assignment. In a loser-take-all circuit, one or more current highest resource priorities of each configuration within the requested configuration type, which are output from the winner-take-all circuit associated with the requested resource assignment, each of the one or more current resources having a current priority, are compared. One of the one or more current resource configurations within the requested configuration type having the lowest current priority is identified as the lowest-priority current resource configuration. The requested configuration type is allocated to the selected resource request if the request priority is higher than the lowest current priority configuration output from the loser-take-all circuit. The method further comprises continuing to allocate the requested configuration type to the lowest-priority current resource tasks currently occupying the lowest current priority configuration within the requested configuration if the lowest current priority configuration within the requested configuration is higher than or equal to the request priority.

    Abstract translation: 用于分配资源的系统和方法接收描述任务的一个或多个资源请求,所述一个或多个资源请求中的每一个具有请求优先级,请求的配置类型和请求者标识符。 在获胜者全部电路中,比较所请求配置类型的每个配置中的所有现有资源优先级,以确定占用每个分配的最高优先级任务。 在失败者全部电路中,在所请求的配置类型中的每个配置的一个或多个当前最高资源优先级,其从与所请求的资源分配相关联的获胜者获取电路中输出,所述一个或多个当前 比较具有当前优先级的资源。 在具有最低当前优先级的请求配置类型中的一个或多个当前资源配置之一被标识为最低优先级当前资源配置。 如果请求优先级高于来自输入输出电路的最低当前优先级配置输出,则所请求的配置类型被分配给所选择的资源请求。 该方法还包括如果所请求的配置中的最低当前优先级配置高于或等于请求优先级,则继续将所请求的配置类型分配给当前占用所请求配置中的最低当前优先级配置的最低优先级当前资源任务。

    PROGRAMMABLE BEAMFORMING SYSTEM INCLUDING ELEMENT-LEVEL ANALOG CHANNELIZER
    16.
    发明申请
    PROGRAMMABLE BEAMFORMING SYSTEM INCLUDING ELEMENT-LEVEL ANALOG CHANNELIZER 有权
    可编程光束系统,包括元件级模拟通道

    公开(公告)号:US20160087335A1

    公开(公告)日:2016-03-24

    申请号:US14489715

    申请日:2014-09-18

    Inventor: Harry B. Marr

    CPC classification number: H01Q3/00 H01Q3/26 H04B7/0617 H04B7/0634

    Abstract: A beamforming system includes a plurality of channelizers and a channel switching module in signal communication with the channelizers. Each channelizer is configured to receive a respective input radio frequency signal and to generate a plurality of respective channels in response to downsampling the respective input radio frequency signal. The channel switching module includes a channel combining circuit configured to selectively combine a common channel generated by each channelizer to form at least one steered analog beam.

    Abstract translation: 波束成形系统包括多个通道化器和与通道化器信号通信的通道切换模块。 每个信道发送器被配置为响应于对相应的输入射频信号的下采样而接收相应的输入射频信号并产生多个相应的信道。 信道切换模块包括信道组合电路,其被配置为选择性地组合由每个信道发生器产生的公共信道以形成至少一个转向模拟波束。

    RUNTIME CREATION, ASSIGNMENT, DEPLOYMENT AND UPDATING OF ARBITRARY RADIO WAVEFORM TECHNIQUES FOR A RADIO WAVEFORM GENERATION DEVICE
    17.
    发明申请
    RUNTIME CREATION, ASSIGNMENT, DEPLOYMENT AND UPDATING OF ARBITRARY RADIO WAVEFORM TECHNIQUES FOR A RADIO WAVEFORM GENERATION DEVICE 有权
    无线电波形发生装置的无线电波形技术的创建,分配,部署和更新

    公开(公告)号:US20150007158A1

    公开(公告)日:2015-01-01

    申请号:US13929116

    申请日:2013-06-27

    CPC classification number: G06F8/65 G06F17/5054

    Abstract: Embodiments of a system and method for runtime creation, assignment, deployment and updating of arbitrary radio waveform techniques for a radio waveform generation device are generally described herein. In some embodiments, a parser is arranged to parse packet data files to generate channel properties associated with at least one of a plurality of techniques. A user application may be coupled to the parser and arranged to process the channel properties into channelized waveform data according to the at least one of the plurality of techniques. A packetizer may be coupled to the user application and arranged to packetize the channelized waveform data. A digital-to-analog converter may be arranged to convert the channelized waveform data to analog RF signals representing the waveform corresponding to the at least one of the plurality of techniques.

    Abstract translation: 这里通常描述用于无线电波形生成装置的任意无线电波形技术的运行时创建,分配,部署和更新的系统和方法的实施例。 在一些实施例中,解析器被布置成解析分组数据文件以生成与多种技术中的至少一种相关联的信道属性。 用户应用可以耦合到解析器,并且被布置成根据多种技术中的至少一种将信道特性处理成信道化波形数据。 分组器可以耦合到用户应用,并且被布置为对信道化的波形数据进行打包。 数模转换器可以被布置成将信道化波形数据转换成表示对应于多种技术中的至少一种技术的波形的模拟RF信号。

    HIGH POWER SIGNAL COMMUNICATIONS WITHIN A POWER LIMIT

    公开(公告)号:US20200028529A1

    公开(公告)日:2020-01-23

    申请号:US15974446

    申请日:2018-05-08

    Abstract: An RF communication system includes a wideband receiver for receiving an RF signal; a wideband receive signal path for processing the received RF signal, a wideband transmit signal path for processing a transmit RF signal to be transmitted; a wideband transmitter for transmitting the transmit RF signal at a selected transmit frequency and a selected transmit polarization; and a processor for controlling a plurality of beam forming circuits for performing signal processing and waveform generation, wherein the processor maximizes an effective radiated power (ERP) of the communication system within a predetermined ERP limit by switching the wideband transmitter between at least one of multiple transmit frequencies and multiple transmit polarizations to form an aggregate, time-averaged signal as the transmit RF signal.

    MULTIFUNCTION CHANNELIZER/DDC ARCHITECTURE FOR A DIGITAL RECEIVER/EXCITER

    公开(公告)号:US20190036675A1

    公开(公告)日:2019-01-31

    申请号:US16123150

    申请日:2018-09-06

    Abstract: A digital receiver includes a digital synthesizer that generates a local oscillating (LO) signal at a selected frequency, and a signal mixer that receives an input signal and generates a mixed output signal in response to shifting a phase of the input signal based on the frequency of the LO signal. A multi-mode dynamic channelizer is selectively operable in a first mode and a second mode. The first mode generates a plurality of individual channels having a channel size defined by a bandwidth and a gain, and the second mode generates a parallelization of a selected channel. In response to operating in the second mode, the multi-mode dynamic channelizer adjusts at least one of the bandwidth and the gain of the selected channel based on the mixed output signal to change the channel size of the selected channel.

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