SAR Imaging Systems Performance Modeling

SAR radar imaging system is a supplement for electro optic remote sensing system and has been used over the past two decades. Understanding the behavior of these systems is difficult, because the complexity of these systems, especially in the mapping of the signal space to image space. This problem, development and use of this technology from the performance perspective and opposing with it from the performance passive defense, severely limited. In this paper a model for the performance of SAR imaging systems is provide. This model is like the impulse response function for linear systems independent of time. In other words, the proposed model is the impulse response of twodimensional SAR systems and by using it the SAR imaging process can be simulated. Using this model, many phenomena such as speckle noise shaping, can be described and the factors and parameters that are effective in the imaging system can be analyzed. Validity of the two-dimensional impulse response or functional model that presented in this paper, by comparing the results obtained in this paper and the expected results reported in reliable sources in this area has been proved.