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| Content Provider | IET Digital Library |
|---|---|
| Author | Wen, Ming Yi, Wei Li, Wujun |
| Abstract | In practice, medium pulse repetition frequency (PRF) radar system is widely used as it takes both the advantages of low and high PRF radars. However, range and Doppler ambiguities appear in such a complicated system. Traditional target tracking algorithms first threshold raw measurements and obtain points from different PRF, then perform ambiguity resolutions over them to obtain the unambiguous measurements. It leads to a rather poor performance when target signal-to-noise ratio is low. While multi-frame track-before-detect (MF-TBD) is an advantageous method to track weak targets, but it fails to be applied in multiple PRF radar system directly. In this study, two algorithms based on MF-TBD are proposed. Classical ambiguity resolution (CAR) TBD first resolves ambiguities by means of a robust Chinese Remainder Theorem, where the first detection threshold is below the normal threshold, and then MF-TBD is applied for further tracking. The simulation shows that the proposed method significantly outperforms the CAR detect-before-track algorithm. |
| Starting Page | 7726 |
| Ending Page | 7729 |
| Page Count | 4 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 21, Nov (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/21 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0761 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2019-08-13 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Ambiguity Resolutions Classical Ambiguity Resolution TBD Detection Threshold Doppler Ambiguities Doppler Radar High PRF Radars Low PRF Radars Medium Pulse Repetition Frequency Radar System MF-TBD Multiframe Track-before-detect Algorithm Multiple PRF Radar System Normal Threshold Radar Detection Radar Equipment Radar Signal Processing Radar Tracking Robust Chinese Remainder Theorem Signal Detection System And Application Target Signal-to-noise Ratio Target Tracking Threshold Raw Measurement Unambiguous Measurement Weak Targets |
| Content Type | Text |
| Resource Type | Article |
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