Abstract
A product spectrogram-WVD(PSWVD) transform method for detecting multicomponent PPS(mc-PPS) was developed. The PSWVD algorithm combines the merits of spectrogram with WVD transform, which holds good frequency aggregation and anti-noise performance while removing cross-terms of WVD. Meanwhile an adaptive threshold was set up to suppress noise and cross-terms, which reduces the computation mostly for the following Radon transform. Simulations on 3 component linear frequency modulation (LFM) signals, 2 component non-linear frequency modulation (NLFM) signals and strong and weak PPS show that the PSWVD algorithm has excellent detection performance.
| Original language | English |
|---|---|
| Pages (from-to) | 39-42 |
| Number of pages | 4 |
| Journal | Dalian Haishi Daxue Xuebao/Journal of Dalian Maritime University |
| Volume | 35 |
| Issue number | 1 |
| State | Published - Feb 2009 |
| Externally published | Yes |
Keywords
- Polynomial phase signal(PPS)
- Product
- Radon transform
- Spectrogram
- WVD transform
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