公开(公告)号：US20160259030A1

公开(公告)日：2016-09-08

申请号：US15027653

申请日：2013-10-16

Applicant: NOKIA TECHNOLOGIES OY

Inventor： XIANJUN JIAO ,  Xin ZHANG ,  Canfeng CHEN

IPC: G01S3/02 ,  G01S3/786

CPC classification number: G01S3/023 ,  G01S3/046 ,  G01S3/7865

Abstract: Provided are methods, apparatuses, and computer program products for calibrating a direction-finding system in a handheld device. A method is provided, which comprises: displaying instructions for orienting a device such that an image of a calibration source through a camera of the device falls in a designated position on a screen of said device; receiving a signal from said calibration source via an antenna array of the device; calculating an orientation angle between said device and said calibration source based on said image of the calibration source; storing pairs of the signal and the orientation angle at various instances while moving or rotating the device to make the image of the calibration source move along a predefined trajectory displayed on the screen; and calibrating a direction-finding system in the device based on the stored pairs of the signal and the orientation angle.

Abstract translation: 提供了用于校准手持设备中的测向系统的方法，装置和计算机程序产品。 提供了一种方法，其包括：显示用于定向设备的指令，使得校准源的图像通过设备的照相机落在所述设备的屏幕上的指定位置; 经由设备的天线阵列从所述校准源接收信号; 基于所述校准源的图像计算所述设备和所述校准源之间的定向角度; 在移动或旋转设备以使得校准源的图像沿着显示在屏幕上的预定轨迹移动时，在各种情况下存储信号对和取向角度的对准; 并且基于存储的信号对和定向角来校准装置中的测向系统。