On joint phase-envelope use in radar CFAR processing

Juho Vihonen; Timo Ala-Kleemola; Timo Hintikka; Juha Jylha; Ari Visa

doi:10.1117/12.602719

25 May 2005 On joint phase-envelope use in radar CFAR processing

Juho Vihonen, Timo Ala-Kleemola, Timo Hintikka, Juha Jylha, Ari Visa

Proceedings Volume 5809, Signal Processing, Sensor Fusion, and Target Recognition XIV; (2005) https://doi.org/10.1117/12.602719
Event: Defense and Security, 2005, Orlando, Florida, United States

Abstract

A method assuming linear phase drift is presented to improve radar detection performance. Its use is based on the assumption that the target illumination time comprises multiple coherent pulses or coherent processing intervals (CPI). For example in a conventional scanning radar, this often inaccurate information can be used for statistical data mapping to point out possible target presence. If coherent integration is desired in a beam-agile system, the method should allow sequential detection. Discussion involves a pragmatic example on the echo phase progress utilization in the constant false alarm rate (CFAR) processing of a moving target indication (MTI) system. The detection performance is evaluated with scanning radar simulations. The method has been tested using real-world recordings and some observations are briefly outlined.

Citation Download Citation

Juho Vihonen, Timo Ala-Kleemola, Timo Hintikka, Juha Jylha, and Ari Visa "On joint phase-envelope use in radar CFAR processing", Proc. SPIE 5809, Signal Processing, Sensor Fusion, and Target Recognition XIV, (25 May 2005); https://doi.org/10.1117/12.602719

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KEYWORDS

Radar

Signal to noise ratio

Doppler effect

Signal detection

Target detection

Phase shift keying

Antennas

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