Reducing Error of Position When Measuring the Bistatic Reflection Coefficient

The article presents a signal processing technique in bistatic measurements that significantly reduces measurement error. The technique is based on a time domain comparison of signals from the sample under study and the background signal. With the help of this technique, some reflection coefficient measurement results for a sample with radar-absorbing coating are processed. It is shown that the application of the presented technique made it possible to reduce the maximum error of reflection coefficient measurements as a dependance of frequency and angle of incidence from 10 dB to 1 dB.