Apparatus and method for estimating direction of radio frequency signal

摘要

An apparatus and method for estimating the direction of an RF signal is provided. The apparatus includes an antenna for receiving an RF signal. An electronic compass is configured to, as a pointing direction of the antenna is varied, generate information about pointing directions and pointing angles corresponding to variations in the pointing direction of the antenna. A control unit determines RSSI values at respective pointing angles of the antenna based on a received signal of the antenna and information of the electronic compass depending on the variations, extracts a maximum RSSI value from the RSSI values at respective pointing angles, and stores the maximum RSSI value and a pointing direction corresponding to the maximum RSSI value. A display unit displays the RSSI values at the respective pointing angles and a trajectory of the RSSI values at respective pointing angles under control of the control unit.

主权项

1. An apparatus for estimating a direction of an RF signal, comprising:
an antenna for receiving an RF signal; an electronic compass for, as a pointing direction of the antenna is varied, generating information about pointing directions and pointing angles corresponding to variations in the pointing direction of the antenna; a control unit for determining received signal strength indicator (RSSI) values at respective pointing angles of the antenna based on a received signal of the antenna and information of the electronic compass depending on the variations in the pointing direction of the antenna, extracting a maximum RSSI value from the RSSI values at the respective pointing angles, and storing the maximum RSSI value and a pointing direction corresponding to the maximum RSSI value; a display unit for displaying the RSSI values at the respective pointing angles and a trajectory of the RSSI values at the respective pointing angles under control of the control unit, and a mode setting unit for setting a start and an end of a mode in which an arrival direction of the RF signal is estimated, wherein the control unit is operated depending on settings by the mode setting unit.