| 引用本文: | 李彤,潘文生,邵士海,等.集成平台空域辅助阵列共址干扰抑制技术.[J].国防科技大学学报,2023,45(6):71-77.[点击复制] |
| LI Tong,PAN Wensheng,SHAO Shihai,et al.Spatial domain collocation interference suppression method based on auxiliary array in integrated platform[J].Journal of National University of Defense Technology,2023,45(6):71-77[点击复制] |
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| 集成平台空域辅助阵列共址干扰抑制技术 |
| 李彤，潘文生，邵士海，杜林松，时成哲 |
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(电子科技大学 通信抗干扰技术国家级重点实验室)
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| 摘要: |
| 由于用频设备之间的频段重叠，本地发射机会对接收机产生严重的共址干扰，造成其空口饱和，无法正常工作。针对上述问题，提出了一种利用辅助阵列抵消共址干扰的方法，建立了利用辅助阵列空域抵消共址干扰的系统模型，推导了最小残余干扰功率表达式，提出了共址干扰空域完美抵消需要满足的信道条件。除此之外，分析了主发射阵列非合作情况下，辅助阵列摆放位置，以及主发射阵列合作情况下，二者位置的相对关系，并推导了不完美干扰抵消下的干扰抑制比。理论和仿真结果表明，采用辅助阵列空域共址干扰抑制的方法可以在空口处有效抑制共址干扰，且不影响本地发射机的传输效率。 |
| 关键词: 多发多收 空域 共址干扰抑制 |
| DOI：10.11887/j.cn.202306010 |
| 投稿日期：2022-01-05 |
| 基金项目:国家自然科学基金资助项目（62071094,61901396） |
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| Spatial domain collocation interference suppression method based on auxiliary array in integrated platform |
| LI Tong, PAN Wensheng, SHAO Shihai, DU Linsong, SHI Chengzhe |
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(National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu 611731 , China)
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| Abstract: |
| Due to overlapping frequency bands between frequency-consuming devices, the local transmitter will cause serious collocation interference to the receiver, causing the saturation of receiver antenna interface and failing to work normally. In response to the above problems, a collocation interference suppression method based on auxiliary array was proposed, a collocation interference suppression system model based on auxiliary array was established, the expression of minimum residual interference power was derived, channel conditions that need to be satisfied for collocation interference suppression was proposed. In addition, the location of the auxiliary was analyzed when main-transmitter array was non-cooperative, and the relationship of the locations of arrays was analyzed when the main-transmitter array was cooperative. The theory and simulation results show that the collocation interference suppression method based on auxiliary array can effectively suppress collocation interference at the receiver antenna interface without affecting the transmission efficiency of the local main-transmitter array. |
| Keywords: multiple input multiple output spatial domain collocation interference suppression |
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