Sar Polarization Plane Target Raw Data Simulation Study

Synthetic Aperture Radar (SAR) acts a very important role in the field of microwave remote sensing as a high-resolution microwave imaging radar which isn't influenced by terrain, time and weather etc. During the period of the SAR research and development, the engineers must take many times of calibration. It costs a lot in each time of calibration. So, the technology of high efficient SAR raw data simulation is needed. It will help the engineers test the SAR system more easily. The details of this paper are below.1. A method of SAR raw data simulation is proposed.The simulation is based on some approximation of the track of the carrier and it can simulate some kinds of landscape very effectively. It can also effectively simulate the multi-polarization reflect signal of SAR. I have given out some results of the simulation of multi-polarization raw data.2. I have researched the method of the multi-polarization signals processing.The multi-polarization signals processing is based on the theory of Virtual Polarization Adaptation. This main point of the theory is dividing a polarized microwave to two orthogonal vectors. Actually, the receiver of radar can receive not only the signal but also the noise and interference. We must find a proper ratio of the two vectors to receive more signal and less noise and interference. I have done some research on it.3. The hardware realization of the raw data simulator.For the limit of time, I have only purposed some analysis of the hardware realization methods. It is based on the high speed bus of the computer such as PCI. The raw data is calculated in the computer and output through the bus. It is easy to design.