Curvelet Transform-Based Denoising Method for Doppler Frequency Extraction
侯舒娟, 吴嗣亮 · 北京理工大学学报：英文版 · 2007
A novel image denoising method based on curvelet transform is proposed in order to improve the performance of Doppler frequency extraction in low signal-noise-ratio (SNR) environment. The echo can be represented as a gray image with spectral intensity as