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多视处理一般用于合成孔径雷达图象形成中以降低相干斑噪声。我们提出了一种新的多视技术以改善辐射测量分辨率,而不改变冲激响应的几何分辨率。这一技术是基于用不同带宽形成各帧图象,然后对各帧给出一适当尺度和加权,并非相干地达加以得到最后的图象。具有较大带宽的帧对改善总的几何分辨率有贡献,而具有较小带宽的帧改善总的辐射测量分辨率。等效帧数大于2.3倍独立帧数且优于一般的具有重迭的多视处理。最后我们提出了一种算法,利用提出的技术作有效处理,且通过对图象的比较、分析证明其有效性。
Multi-view processing is generally used in the formation of synthetic aperture radar image to reduce speckle noise. We propose a new multi-view technique to improve the radiometric resolution without changing the geometric resolution of the impulse response. This technique is based on forming frames of images with different bandwidths and then giving each frame an appropriate scale and weight, not coherently to arrive at the final image. Frames with larger bandwidth contribute to improving the overall geometrical resolution, whereas frames with smaller bandwidth improve the overall radiation measurement resolution. The number of equivalent frames is greater than 2.3 times the number of independent frames and is superior to the general multi-view processing with overlap. Finally, we propose an algorithm that utilizes the proposed techniques for efficient processing and proves its effectiveness by comparing images.