| 摘要: |
| 结合工程实践，设计和实现了一种变换域处理抗干扰算法，提出了一种对干扰谱线二次识别和二次置零的处理方法。该方法可降低算法处理信噪比损失，在干信比不小于60 dB时能降低4.5 dB。仿真分析和专用集成芯片实物测试证明了算法的有效性，在载噪比不大于60 dB时，由抗干扰算法引入的信噪比损失不大于2.5 dB。 |
| 关键词: 中继终端 变换域 抗干扰算法 |
| DOI： |
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| 基金项目: |
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| Application of transform domain anti-jamming algorithm in a relay satellite system terminal |
| JIANG Wenfeng |
| (Southwest China Institute of Electronic Technology,Chengdu 610036，China) |
| Abstract: |
| According to engineering practice,an anti-jamming algorithm in transform domain is designed and implemented,and a method called “the second identifying and zero setting with the jamming spectral line” is proposed to reduce algorithm processing signal-to-noise ratio(SNR) loss.When jamming-to-signal ratio(JSR)≥60 dB,this method can reduce 4.5 dB SNR loss.Through simulation and the application specific integrated circuit（ASIC） testing,the effectiveness of the algorithm is demonstrated.When carrier-to-noise ratio ≤60 dB,the imported SNR loss by the anti-jamming algorithm ≤2.5 dB. |
| Key words: relay satellite system terminal transform domain anti-jamming algorithm |
