公开(公告)号：US20140064349A1

公开(公告)日：2014-03-06

申请号：US14051525

申请日：2013-10-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Gwangmoon PARK ,  Sang-Tae KIM ,  Seong-Yun LEE ,  Haeng-Sook RO ,  Mi-Kyung SUK ,  Heung-Yong KANG ,  Yong-Seok CHOI

IPC: G01S3/04

CPC classification number: G01S3/046 ,  G01S3/043 ,  G01S3/74 ,  G01S5/04

Abstract: A digital spectrum analysis apparatus and method for direction finding (DF) and location is provided. The digital spectrum analysis apparatus includes: a multi-channel unit configured to convert signals inputted from antennas into digital signals, reduce a sampling rate of the digital signals by using a digital down converter (DDC), and convert the digital signals into baseband complex signals, and having a plurality of channels; a DF estimator configured to estimate the direction of the signal; a spectrum processing unit configured to map any one of a bearing and a power level of the baseband complex signal into coordinate system, and allocate different colors to one of the bearings and the power levels depending on the accumulation ratio of one of the bearing and the power level; and a display unit configured to display the power level and the bearing with colors.

Abstract translation: 提供了一种用于方向查找（DF）和位置的数字频谱分析装置和方法。 数字频谱分析装置包括：多通道单元，被配置为将从天线输入的信号转换为数字信号，通过使用数字下变频器（DDC）降低数字信号的采样率，并将数字信号转换为基带复合信号 并具有多个通道; DF估计器，被配置为估计所述信号的方向; 频谱处理单元，被配置为将所述基带复合信号的方位和功率电平中的任一个映射到坐标系中，并且根据所述轴承和所述轴承的一个的累积比，将不同的颜色分配给所述轴承和所述功率电平中的一个 能量等级; 以及显示单元，被配置为用颜色显示功率水平和轴承。