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FFT-based displaced phase center array/along-track interferometry architecture
FFT-based displaced phase center array/along-track interferometry architecture
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机译:基于FFT的位移相中心阵列/沿轨干涉测量架构
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摘要
A radar architecture comprising a computing device having a DC subtraction module, programmed to average a first value of a first pixel from a first received SAR image and a second value of a second pixel from a second received SAR image, to produce an averaged value, and to subtract the averaged value from the first value, resulting in a first DC subtracted pixel value, and to subtract the averaged value from the second value, resulting in a second DC subtracted pixel value; a DFT processing module programmed to receive the first DC subtracted pixel value and the second DC subtracted pixel value and to output a first DFT output comprising a plurality Doppler bins; and a detector module programmed to determine if the output of the DFT represents the presence of a target, and to estimate range-rate via a lookup table.
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