Through-the-Wall Surveillance With Millimeter-Wave LFMCW Radars

• Published in: IEEE transactions on geoscience and remote sensing Vol. 47; no. 6; pp. 1796 - 1805
• Main Authors: Gonzalez-Partida, J.-T., Almorox-Gonzalez, P., Burgos-Garcia, M., Dorta-Naranjo, B.-P., Alonso, J.I.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-06-2009; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Antennas; Applied geophysics; Availability; Azimuth; Bandwidth; Circuits; Directive antennas; Earth sciences; Earth, ocean, space; Exact sciences and technology; Feasibility; Frequency; Internal geophysics; Linear frequency-modulated continuous-wave (LFMCW) radar; Millimeter wave circuits; Millimeter wave radar; Millimeter wave technology; millimeter-wave; Radar; Radar antennas; Radar applications; Surveillance; Through-the-Wall Radar (TWR); urban sensing; Weight reduction; urban sensing; Through-the-Wall Radar (TWR); Linear frequency-modulated continuous-wave (LFMCW) radar; surveillance; millimeter-wave; antenna; experimental studies; waves; remote sensing; urban areas; monitoring; frequency; discrimination; reduction; radar methods
• ISSN: 0196-2892; 1558-0644
• DOI: 10.1109/TGRS.2008.2007738

The use of millimeter-wave radars allows a weight and size reduction of circuits and antennas, which is an important characteristic for Through-the-Wall Surveillance (TWS) applications. Furthermore, when using the millimeter-wave band, a large amount of bandwidth can be easily transmitted, given that the relative bandwidth is smaller. This leads to a high range resolution that allows for the discrimination of several targets that are very close in range, e.g., inside a room. The azimuth resolution is also improved due to the availability in this band of directive antennas with small dimensions. This paper studies the feasibility of using a millimeter-wave linear frequency-modulated continuous-wave radar in a TWS application. A TWS experiment in a real scenario has been done to demonstrate the validity of the theoretical analysis.