Measurement data of millimeter-wave radar signal characteristics, particularly in maritime environment are very rare.The main interest of this article is in finding relevant statistical parameters to describe the received echo power of targets as a function of sea state and type of target in order to be able to outline radar signal processing algorithms and to find out close-to-optimum illumination time constants. The experimental equipment consists of a tracking Ka-band millimeter wave radar, associated displays and two recording systems. The first recording system is based on a time-framing digital oscilloscope and the second relies on an ultra fast sample-and-hold device. This has been utilized for the long data series in addition to the more conventional time-gated data acqusition equipment. Peak variations exceed 20 dB also for anchored in 5 - 7 m/s and 3 - 4 m/s upwind and downwind. The experiments show that observation length as long as 500 s may be nessecary to cover typical statistical characteristics of target radar backscattering behaviour, of course depending on the type of target and sea state.
Experimental results of maritime target RCS fluctuation
Frequenz ; 64 , 3/4 ; 55-58
2010
4 Seiten, 6 Bilder, 6 Quellen
Article (Journal)
English
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