Precision measurement of backscattering cross-sections as a function of frequency

For a scattering measurement setup comparisons are made between different modes of operation. In order to make the comparisons, a simple procedure is outlined so that a figure of merit characterizing a given mode can be found. Figures of merit are found for three modes of operation. The different modes of operation are characterized by the manner in which the test object signal is separated from undesired signals such as background and support scattered signals. The setup and the analysis of the measured signals in the different modes of operation are discussed in detail.