一種基于孤立源的近場(chǎng)互耦校準(zhǔn)方法
A MUTUAL COUPLING CALIBRATION BASED ON A SINGLE SOURCE IN NEAR FIELD
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摘要: 本文提出一種適用于均勻線陣的互耦校準(zhǔn)方法。該方法只需用一個(gè)位于近場(chǎng)的已知源即能實(shí)現(xiàn)有效校準(zhǔn),并可推廣應(yīng)用于均勻圓陣。同時(shí),文中還討論了校準(zhǔn)源的位置誤差對(duì)校準(zhǔn)的影響,并分析了校準(zhǔn)源應(yīng)選取的最佳方位。最后,對(duì)新方法進(jìn)行了仿真驗(yàn)證。
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關(guān)鍵詞:
- 陣列信號(hào)處理; 校準(zhǔn); 互耦
Abstract: In this paper a mutual coupling calibration method suitable for uniform linear arrays is presented where only one known calibration source in the near field is necessary for effective calibration, which can be extended to the case of uniform circular arrays. The paper has also discussed the position error influence of the source on the calibration., and the optimum azimuth of the source is analized. Finally some simulation results are given to show the advantages of the new method. -
Roller C, Wasylkiwskyi W. Effects of mutual coupling on superr esolution DF in linear arrays. International Conference on Radar89, France: 1989, 556-562.[2]Weiss A J, Friedlander B. Mutual coupling effects on phaseonly direction finding. IEEE Trans. on AP, 1992, AP-40(5): 535-541.[3]Yeh C C, Leou M L, Ucci D R. Bearing estimations with mutual coupling present. IEEE Trans. on AP, 1989, AP-37(10): 1332-1335.[4]Friedlander B, Weiss A J. Direction finding in the presence of mutual coupling. IEEE Trans. on AP, 1991, AP-39(3): 273-284. -
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