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Algorithm for Detecting Direction of Single IF Scheme CW Radar Sensor

단일 IF 방식 CW 레이더 센서의 방향 검출 알고리즘

Han, Byung-Hun;Shin, Hyun-Jun;Oh, Chang-Heon
한병훈;신현준;오창헌

  • Received : 2015.08.10
  • Accepted : 2015.09.24
  • Published : 2015.12.31

Abstract

CW Radar Sensors can be categorized into Single and Dual by its IF output type. Dual IF type is used for detecting the direction of moving objects. However, Dual IF type has more complicated circuitry than Single IF type and higher cost due to more parts required. In this paper, we propose an algorithm for Single IF type CW radar sensors to detect the direction of moving objects. It performs FFT on signals created at IF output when an object moves and determines approach, stop and recede according to amplitude variations. In order to verify the algorithm, a function generator is used to create a virtual signal and confirmed that it accurately detects the directions according to amplitude variations.

Keywords

Detecting direction;Radar sensor;Object detection;Single IF output

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