Sar Against Test Effect Equivalent Calculation Method

Synthetic Aperture Radar(SAR) has all-weather, whole day and high distinguishdble ability, at the same time has many frequency range, many polarization and many depression angle etc advantages. In recent years of several decades, more and more high quality SAR pictures were obtained by the SAR which carried on the plane or satellite. This provides powerful support for professional research, especially for military realm of battle command. For our developed anti-SAR equipment, its ideal experimental antagonistic equipment is its battle object——the Western SAR which carried on the plane or satellite. Direct using it as experimental object is obviously impossible.Because of being subjected to technical restrictions and budget support etc,we also impossibly develop SAR which carried on the plane or on the satellite with the same performence. Therefore in the equipment test experiment of our developed SAR, useing domestic SAR as test object which has similar function and performance. By equivalent reckon theory and the data which gets from the airborne SAR antagonistic test, the campaign effect of our anti-SAR equiomentto the western SAR can be estimated.The article describes research background and application value, elaborates the diversity of SAR signal in different platforms,establishes the radar detecting calculating model and equivalent reckon model of SAR interfering power, analyses interfering effect of SAR, designs the equivalent reckon procedure, calculates the interference effect of SAR on the satellite which based on the interfering date of SAR on the plane.The article applicates in a SAR experiment.Based on the experiment data, calculats and reasons the design plan particularly. The result achieves the expected request, which has certain expansion application value.