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http://dx.doi.org/10.6109/jkiice.2012.16.9.1856

A Study on Interference Cancellation in a FM-CW Radar  

Lee, Jong-Gil (인천대학교 정보통신공학과)
Lee, Chang-Ki (인천대학교 정보통신공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.16, no.9, 2012 , pp. 1856-1863 More about this Journal
Abstract
Two separate antennas are usually adopted in high performance radar systems to achieve the high degree of isolation since the transmission and reception of signals cannot be separated in time. However, even though two spatially separated antennas are installed in the system, strong signals from a transmission antenna can cause the serious interference problem in a receiving antenna. These strong interference signals from the transmission antenna can cause serious problems in detection and analysis of much weaker echo signals which are reflected by small targets. Also the increased level of background noise power due to interference can cause the serious degradation of the system performance. Therefore, in this paper, the proper cancellation method is suggested and results are shown and analyzed for removal of strong interference and background noise power.
Keywords
FM-CW radar; Receiver interference; Beat signal; Transmission waveform;
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