A new wall compensation algorithm for through-the-wall radar imaging

The signal will encounter refraction, changing in speed and get attenuated as passing through the wall in the through-the-wall radar. In this paper, by analyzing the echo signal model, the relationship among the transmit signal, target position function and the wall system function in view of the system concept will be achieved, a new wall compensation algorithm based on the inverse system and a method of estimating the wall system function using the real data will be proposed. Proof of concept is provided using real data collected in a laboratory environment. The results show that the new wall compensation algorithm can eliminate the effects of unknown wall parameters very well.