| 摘要: |
| 为了进一步提高干涉仪的测向精度，增强对宽带信号的适应能力和扩展系统的工作频
率范围，论述了在工作频率范围和测向精度约
束下如何设置天线阵列基线的问题，得到了系统测向不模糊的条件和测向角的最优线性无偏
估计（BLUE）解。仿真实例表明，该结论正确，并可以指导数字化宽带测向系统整体设计和
优化。 |
| 关键词: 宽带测向系统 干涉仪 天线阵列基线 相位差测量 解模糊 |
| DOI： |
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| 基金项目: |
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| Design of baseline of antenna array for a digital wideband direction-finding system |
| JIANG Qin-bo,LIU Zhi-qiang,MA Hong-guang |
| (The Second Artillery Engineering Institute, Xi′an 710025，China) |
| Abstract: |
| In order to improve the directionfinding(DF) precision,enha
n
ce the ability of measuring the wideband signal and expand the working frequ
ency range,how to design the baseline of the antenna
array to keep large working frequency range and good DF precision is discussed.T
he condition of solving DF ambiguity an
d
the Best Linear Unbiased Estimation(BLUE) solution of the DF angle are obtained
. T
h
e simulation shows the results is correct and can be used to design and optim
ize the whole digital wideband DF system. |
| Key words: wideband direction finding system interferometer antenna array baseline phas
e difference measuring phase difference ambiguity solution |
