Synthetic Aperture Radar (sar) Against

Synthetic Aperture Radar (SAR) is a kind of active microwave imaging radar. It can all-weather, all-day and timely get ground images of wide region and has fine penetrability to vegetation and ground. SAR is pretty important to resources exploitation and military reconnaissance and has been widely used in diverse fields of civil and military.This dissertation studies the SAR conflict technique from the view of system. Some valuable conclusions are summarized by theoretical analysis and simulation experiments. Some new method of SAR conflict technique is put forward. The main work and achievements are as follow:1. Discusses SAR architecture and imaging theories, places emphasis on analyzing jamming power, and then discusses the effect of quantizer and limitr in jamming circumstances.2. Presents a new SAR jamming method named half match jamming. Result of experiments carried out proves that this method is most useful.3. Presents a new SAR anti-jamming method in Dual-channel SAR to suppress interference. The result of analysis and simulation show this method can effectively suppress interference.4. Discusses the effect of the suppression interference when pulse repeated frequency is higher.5.In the end presents a high effective method on producing simulation data of echo signal of SAR.