Application of the hybrid method to SIR-C ScanSAR signals

The hybrid method is a new way of reconstruction of SAR signals. Unlike the classical frequency domain approach, it uses only one FFT in the signal pipe. The possibilities of the hybrid method has been extended with the scaling process, being a resampling process filling a new regular grid. This paper explains some fundamentals about the hybrid method, the scaling process, how to choose the dimensions for hybrid matrices and the pixels spacing. All these `rules´ are then applied to SIR-C ScanSAR signals, leading to a faster reconstruction than SPECAN while having more advantages. Some results are shown