Phase error sensitivity in multistatic microwave imaging systems

Current digital-beamforming multistatic mm-wave array designs show superior near field imaging performance. Therefore, mm-wave imaging systems based on these concepts are suitable for a variety of security, medical and industrial applications. The theoretically achieved array performance can be degraded by noise and unwanted signals within the actually implemented systems. In this work, the sensitivity of such systems on certain types of systematic errors within its signal processing chain including the system error correction mechanism is discussed and analyzed. Effects of errors within the reconstructed images are demonstrated, and methods to reduce the effects of some dominant error signals are proposed.