Abstract
Recently polyphase codes have drawn significant attention since they have a high degree of design freedom and low autocorrelation sidelobes. Nevertheless, in practical radar system, the transmitted polyphase signals could be greatly distorted due to the non-ideal circuits. Therefore, it’s necessary to compensate the distorted signal to improve the practicability of polyphase codes. A traditional compensation procedure is to compare the transmitted signal with a reference signal, and compensate the distortion in the frequency domain. In this paper, the mismatched filter processing is adopted to reduce the pulse compression sidelobes and realize the amplitude-phase compensation of the distorted signals. According to the processing results of the experimental data, the mismatched filter processing method can reduce the sidelobe by about 15dB.
| Original language | English |
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| Title of host publication | IET Conference Proceedings |
| Publisher | Institution of Engineering and Technology |
| Pages | 264-269 |
| Number of pages | 6 |
| Volume | 2020 |
| Edition | 9 |
| ISBN (Electronic) | 9781839535406 |
| DOIs | |
| Publication status | Published - 2020 |
| Event | 5th IET International Radar Conference, IET IRC 2020 - Virtual, Online Duration: 4 Nov 2020 → 6 Nov 2020 |
Conference
| Conference | 5th IET International Radar Conference, IET IRC 2020 |
|---|---|
| City | Virtual, Online |
| Period | 4/11/20 → 6/11/20 |
Keywords
- AMPLITUDE-PHASE COMPENSATION
- MISMATCHED FILTER
- RANDOM POLYPHASE CODES