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Multi-Variable Phase and Gain Calibration for Multi-Channel Transmit Signals
- Publication Year :
- 2023
-
Abstract
- A method for software-defined radio array calibration is presented. The method implementsa matched filter approach to calculate the phase shift between channels. Thetemporal stability of the system and calibration coefficients are shown through the standarddeviation over the course of four weeks. The standard deviation of the phase correction wasshown to be less than 2 deg. for most channels in the array and within 8 deg. for the most extremecase. The standard deviation in amplitude scaling was calculated to be less than 0.06 forall channels in the array. The performance of the calibration is evaluated by the antennagain and the difference from the ideal beam shape for the peak side lobe level and first nulldepth. For one example data collection, the gain was 61 dB for the array with a maximumdifference of 0.2246 dB for the peak side lobe level and 0.3998 dB for the first null depth.
Details
- Language :
- English
- Database :
- OpenDissertations
- Publication Type :
- Dissertation/ Thesis
- Accession number :
- ddu.oai.etd.ohiolink.edu.wright1686673954322473