Wavelet detection of singularities in the presence of fractal noise

被引:7
作者
Noel, SE
Gohel, Y
Szu, HH
机构
来源
WAVELET APPLICATIONS IV | 1997年 / 3078卷
关键词
Hermitian Hat wavelet; radar quadrature processing; wavelet shrinkage; fractal noise;
D O I
10.1117/12.271770
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Here we detect singularities with generalized quadrature processing using the recently developed Hermitian Hat wavelet. Our intended application is radar target detection for the optimal fuzing of ship self-defense munitions. We first develop a wavelet-based fractal noise model to represent sea clutter. We then investigate wavelet shrinkage as a way to reduce and smooth the noise before attempting wavelet detection. Finally, we use the complex phase of the Hermitian Hat wavelet to detect a simulated target singularity in the presence of our fractal noise.
引用
收藏
页码:374 / 383
页数:10
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