The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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The Implementation of the Compensation Algorithm of Time Delay for Microwave Polar Transmitters

마이크로파 폴라 송신기의 시간지연 보상 알고리즘 구현

  • Received : 2015.07.03
  • Accepted : 2015.09.14
  • Published : 2015.09.30
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Abstract

In this paper, We made the microwave polar transmitter based on the software to analyze the synchronization status between the phase signal and the amplitude signal of polar transmitter, and analyzed the result. In order to solve the time delay mismatch problem, we applied simplified compensation algorithm and compared the synchronization status between the two paths before and after compensation. Before compensation, the value of time delay mismatch was the maximum of 97 nsec at 9.3 GHz with the occupied bandwidth of 12 MHz, but after applying the compensation algorithm, the signals between the two paths were synchronized, and we identified the occupied bandwidth could recover to the previous 3.7 MHz.

본 논문에서는 마이크로파용 소프트웨어 기반 폴라 송신기를 구현하고, 경로 간의 동기화를 분석하였다. 폴라 송신기의 위상신호와 진폭신호의 두 경로 간 시간 지연부정합 문제를 해결하기 위해 단순화된 보정알고리즘을 적용하였으며, 보정 전과 보정 후의 두 경로 간 동기화 결과를 비교하였다. 동기화 보정하기 전, 9.3 GHz에서 두 경로 간 지연부정합은 최대 97 nsec가 발생하였으며, 이에 따른 점유대역폭은 12 MHz이었으며, 제안한 보정알고리즘을 적용한 결과, 두 경로 간 동기화를 이루었고, 점유대역폭도 기존의 3.7 MHz로 복원할 수 있음을 확인하였다.

Keywords

References

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