鍏抽敭璇�: 鍚堟垚瀛斿緞闆疯揪, 鎺㈡祴, 娉㈡氮灏捐抗, 鏁ｅ皠绯绘暟, 妯℃嫙  

Abstract:

Submerged mobile bodies can produce waves on the sea surface. These waves' interacting with sea waves can change the distribution of high or low frequency of sea wave spectrum, and form the wave wake of the submerged mobile bodies. In the article, the wave-wave interaction is viewed as the perturbing of waves spectrum to the backgrounds. In the article, we analyze the effect of waves wake on the radar backscatter coefficient according to the two-scale model and get the numerical simulations model. Then,we calculate the wave function with the converge-source distribution methods on the submerged mobilebodies in different moving states, which is added to the wave functions of different states of the sea; we carry on the emulating calculation of the radar backscatter variations, and get the simulated SAR detecting image. At last, we process to the simulated SAR image with the 2D spectrum analysis technique, and extract the info of waves wake. The preliminary results indicate that the detection of submerged mobile bodies with SAR is feasible.

Key words: SAR, Detection, Wave wake, Backscatter, Simulation