Method and apparatus for detecting packet

    公开(公告)号:US10091731B2

    公开(公告)日:2018-10-02

    申请号:US15424023

    申请日:2017-02-03

    Abstract: Disclosed is a method and apparatus to detect an intended packet by a sliding intermediate frequency (SIF) coherent ultra low power (ULP) wireless receiver. The method includes detecting a transition from a noise period to a signal period in a pair of input sequences received, dynamically adjusting a gain of the pair of input sequences in response to the signal period being initiated, distinguishing an intended packet from packets received in preambles included in the pair of input sequences, and compensating for a carrier frequency offset of the intended packet in the signal period.

    METHOD AND SYSTEM FOR ESTIMATING AND COMPENSATING FOR DIRECT CURRENT (DC) OFFSET IN ULTRA-LOW POWER (ULP) RECEIVER
    5.
    发明申请
    METHOD AND SYSTEM FOR ESTIMATING AND COMPENSATING FOR DIRECT CURRENT (DC) OFFSET IN ULTRA-LOW POWER (ULP) RECEIVER 有权
    用于在超低功耗(ULP)接收机中直接电流(DC)偏移的估计和补偿的方法和系统

    公开(公告)号:US20160234046A1

    公开(公告)日:2016-08-11

    申请号:US14840524

    申请日:2015-08-31

    CPC classification number: H04L25/061

    Abstract: Provided is a method of estimating a Direct Current (DC) offset in an Ultra-Low Power (ULP) receiver. The method includes receiving a signal from an output of an Analog to Digital Converter (ADC) in the ULP receiver. The signal includes a correlated variable DC component for at least one of an in-phase arm and a quadrature arm of the ULP receiver. The method also includes estimating a DC offset compensation parameter in a plurality of phases for a plurality of stages based on the received signal such that the estimating includes calculating the DC offset compensation parameter in a magnitude estimation phase for the plurality of stages and calculating the DC offset compensation parameter in a sign estimation phase for the plurality of stages.

    Abstract translation: 提供了一种在超低功耗(ULP)接收机中估计直流(DC)偏移的方法。 该方法包括从ULP接收机中的模数转换器(ADC)的输出接收信号。 该信号包括用于ULP接收机的同相臂和正交臂中的至少一个的相关可变直流分量。 该方法还包括基于所接收的信号来估计多个阶段的多个相位中的DC偏移补偿参数,使得估计包括在多级的幅度估计阶段中计算DC偏移补偿参数并计算DC 在多个阶段的符号估计阶段中的偏移补偿参数。

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