Summary
International Symposium on Antennas and Propagation
2010
Session Number:4FD3
Session:
Number:4FD3-3
Detection of Multiple Target Distance using a PN Radar System
Jung-Hwan Choi, Jee-Hoon Lee, Seong-Ook Park,
pp.-
Publication Date:2010/11/23
Online ISSN:2188-5079
Summary:
Radar is an object detection system that uses electromagnetic waves to identify the range, altitude, direction, or speed of both moving and fixed objects such as aircraft, ships, motor vehicles, weather formations, and terrain. A radar system has used a short pulse of radio signal or continuouswave signals for the detection. Pulse radar can detect the distance of multiples targets. It needs high power source to detect a object. In contrast, FMCW radar can detect the distance of multiple targets and the speed of a moving object with lower power. It can be easily implemented due to the simple structure. However, leakage signal problems should be considered [1]. A pseudo random binary sequence (PRBS) has widely been used in direct spread (DS) communication system in order to spread a signal into a wideband bandwidth. A pseudo-noise (PN) sequence is very stronger than a surrounding noise because it has high autocorrelation properties. It is very challenge task that we utilize a PN sequence in radar applications [2]. It can detect not only the distance of multiple targets and the speed of a moving object with lower power because the processing gain can be increased according to the length of PN sequence. In this paper, we show the measured results of multiple target distance.