A novel calibration algorithm of LFM IF signal generator circuit

  • Zhen Qiu Ma*
  • , Wei Cui
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Pages (from-to)824-829
Number of pages6
JournalBeijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume29
Issue number9
Publication statusPublished - Sept 2009

Keywords

  • Amplitude and phase error
  • Error correct
  • Intermediate frequency (IF) signal generator
  • Linear frequency modulated signal

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