公开(公告)号：US09277421B1

公开(公告)日：2016-03-01

申请号：US14558770

申请日：2014-12-03

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Vladan Petrovic ,  Christian R. Berger ,  Zhipei Chi

IPC: H04B15/00 ,  H04W24/00 ,  H04W52/22

CPC classification number: H04W24/00 ,  H04B1/1036 ,  H04B15/00 ,  H04B17/354 ,  H04W52/225

Abstract: Systems, methods, and other embodiments associated with estimating noise in a receiver device based on related properties of order statistics are described. According to one embodiment, a method includes generating an initial set of magnitude squared values from a time domain impulse response of a receiver device. The method also includes generating an initial noise power estimate based on a modified set of magnitude squared values and generating a threshold value based on the initial noise power estimate. The method generates a final noise power estimate by averaging values of the initial set of magnitude squared values that are less than the threshold value and removing a thresholding bias from the resulting average.

Abstract translation: 描述了基于订单统计的相关属性来估计接收机设备中的噪声的系统，方法和其它实施例。 根据一个实施例，一种方法包括从接收机设备的时域脉冲响应生成初始的幅度平方值集合。 该方法还包括基于经修改的幅度平方值的值生成初始噪声功率估计，并且基于初始噪声功率估计生成阈值。 该方法通过平均小于阈值的初始的幅度平方值的值来产生最终噪声功率估计，并从所得到的平均值中去除阈值偏差。