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    • 9. 发明申请
    • CIRCUITS AND METHODS FOR DETECTING INTERFERERS
    • 用于检测干扰物的电路和方法
    • US20170026066A1
    • 2017-01-26
    • US15285474
    • 2016-10-04
    • Peter R. KingetJohn WrightRabia Tugce Yazicigil
    • Peter R. KingetJohn WrightRabia Tugce Yazicigil
    • H04B1/10H04J13/00H04B17/345
    • H04B1/1027H04B17/345H04J13/0029
    • Mechanisms for interferer detection can detect interferers by detecting elevated signal amplitudes in one or more of a plurality of bins (or bands) in a frequency range between a maximum frequency (fMAX) and a minimum frequency (fMIN). To perform rapid interferer detection, the mechanisms downconvert an input signal x(t) with a local oscillator (LO) to a complex baseband signal xI(t)+jxQ(t). xI(t) and xQ(t) are then multiplied by m unique pseudorandom noise (PN) sequences (e.g., Gold sequences) gm(t) to produce m branch signals for I and m branch signals for Q. The branch signals are then low pass filtered, converted from analog to digital form, and pairwise combined by a pairwise complex combiner. Finally, a support recovery function is used to identify interferers.
    • 用于干扰源检测的机制可以通过在最大频率(fMAX)和最小频率(f M IN)之间的频率范围内检测多个箱体(或频带)中的一个或多个中的升高的信号幅度来检测干扰源。 为了执行快速干扰源检测,这些机制将本地振荡器(LO)的输入信号x(t)下变频为复基带信号xI(t)+ jxQ(t)。 然后将xI(t)和xQ(t)乘以m个唯一伪随机噪声(PN)序列(例如,Gold序列)gm(t),以产生用于Q的I和m个分支信号的m个分支信号。然后分支信号 低通滤波,从模数转换成数字形式,并由成对复合组合器成对组合。 最后,支持恢复功能用于识别干扰源。