摘要
A novel method of Doppler frequency extraction is proposed for Doppler radar scoring systems. The idea is that the time-frequency map can show how the Doppler frequency varies along the time-line, so the Doppler frequency extraction becomes curve detection in the image-view. A set of morphological operations are used to implement curve detection. And a map fusion scheme is presented to eliminate the influence of strong direct current (DC) component of echo signal during curve detection. The radar real-life data are used to illustrate the performance of the new approach. Experimental results show that the proposed method can overcome the shortcomings of piecewise-processing-based FFT method and can improve the measuring precision of miss distance.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 443-447 |
| 页数 | 5 |
| 期刊 | Journal of Beijing Institute of Technology (English Edition) |
| 卷 | 15 |
| 期 | 4 |
| 出版状态 | 已出版 - 12月 2006 |