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Content Provider | IET Digital Library |
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Author | Shang, Nan Xin, Ke Yu, Changjun Wang, Linwei |
Abstract | When high-frequency continuous wave (HFCW) radars transmit linear frequency modulated (LFM) continuous wave, there will be direct wave (DW) interference due to temporal continuity. In order to prevent receiver saturation, a DW cancellation system device is developed. This study studies the theoretical model of RF cancellation and derives the DW cancellation ratio formula. Afterwards, a system design scheme for DW cancellation is proposed, where the design and system control algorithms of each module of the cancellation system are mainly studied. Finally, by analysing the DW cancellation technique under multipath effect, it is found that the multipath effect will affect the depth of cancellation. The simulation results verify the correctness of the system design method, the measurement shows a leakage suppression of >15 dB under multipath effects. |
Starting Page | 6660 |
Ending Page | 6663 |
Page Count | 4 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 20, Oct (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/20 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0274 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2019-07-10 |
Access Restriction | Open |
Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
Subject Keyword | CW Radar Direct Wave Cancellation System Direct Wave Interference DW Cancellation Ratio Formula DW Cancellation System Device DW Cancellation Technique Electromagnetic Compatibility High-frequency Continuous Wave Radars High-frequency CW Radar Interference Linear Frequency Modulated Continuous Wave Multipath Effect Radar Equipment Radar Interference Radar Receiver RF Cancellation System And Application System Control Algorithm System Design Scheme |
Content Type | Text |
Resource Type | Article |
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