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The paper focuses on the methodology of the RCS measurement by using radar object subscale model and on the description of the measurement facilities. The first phase of the RCS measurement by applying comparison method is the reference object (shape) design. There are some necessary conditions of the RCS calculation according to comparison method and subscale modeling. Experimental results, obtained in anechoic chamber, are also presented. Some models with scale 1:20 (typical air targets) were used for RCS measurement at the X-band and Ku-band and results were transformed for Lband.

In this paper performance of Walsh-Hadamard sequences (WHS) for binary encoding of radar signals is described. It is shown that between WHS with length 8, 16 and 32 it is possible to find a set of orthogonal sequences with good properties. Probability of correct range detection of selected WHS in presence of active noise jamming is described and it is compared with cases when Barker code is used for binary encoding of radar signals and when widely used linear frequency modulation inside pulse duration is used to spread spectrum of radar signals.

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