Abstract
AbstractThis paper proposes a multiple target detection system using stepped multiple frequency ICW (Interrupted Continuous Wave) radar. The proposed system can obtain a short observation time compared to a conventional up/down sweep FMCW (Frequency‐Modulated Continuous Wave) system or a two‐frequency CW system with less computational complexity than a two‐dimensional super‐resolution system by using a new transmission frequency sequence intended for short‐range targets and a single‐dimension super‐resolution system that preprocesses a target velocity detection process through the use of an ordinary Fourier transformation. In addition, the proposed system can obtain a desired target range and velocity resolution with a transmission frequency bandwidth less than a pulse compression system or an FMCW system. The proposed system can also avoid pairing malfunctions which lead to problems with FMCW systems. Range separation of multiple equal‐velocity targets, a principal problem in two‐frequency CW systems, can also be obtained. Computer simulations show that as a radar system, the proposed system is expected to improve the above‐mentioned problems of conventional radar systems at practical input SN values. © 2007 Wiley Periodicals, Inc. Electron Comm Jpn Pt 2, 90(10): 49–59, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecjb.20388
Published Version
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