The estimation of loss of echoing area with very high resolution radars

The paper considers the use of recently published experimental data in estimating the manner in which the echoing area of an aircraft is reduced when the range resolution cell of the observing radar is smaller than the aircraft dimensions. A simple mathematical model of the echoing process is postulated and the experimental results are used in selecting the model parameters. The model is then used to predict the behaviour of the echoing area, and in addition, the echoing properties for a resolution cell which embraces the whole aircraft are shown to be in excellent agreement with the widely accepted `one dominant¿ model proposed by Swerling.