Abstract
Based on the error analysis of linear frequency modulated (LFM) intermediate frequency (IF) signal generator circuit, a novel error model in frequency domain was established. The model divided the signal generator circuit into two parts, the non-ideal LFM baseband signal generator circuit and the ideal IF modulator. Then a new calibration algorithm is proposed. Through changing the ROM data, it achieved the purpose of circuit error correction. Furthermore, a structure to realize the calibration algorithm was designed. Finally, the simulation results verified the excellence of the calibration algorithm and the correctness of the structure.
| Original language | English |
|---|---|
| Pages (from-to) | 824-829 |
| Number of pages | 6 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 29 |
| Issue number | 9 |
| Publication status | Published - Sept 2009 |
Keywords
- Amplitude and phase error
- Error correct
- Intermediate frequency (IF) signal generator
- Linear frequency modulated signal
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