| 摘要: |
| 分析了卫星有效载荷信号处理需求，提出了基于宽带接收的星载信号处理技术
流程，针对星载硬件资源有限和需要实现对重点信号搜索匹配的要求，同时考虑到宽带接收
时接收灵敏度较差等问题，给出了适于星载实现的多信号分离、低信噪比下调制识别和辐射
源细微特征提取方法，通过仿真验证了算法的有效性。 |
| 关键词: 电子侦察卫星 宽带接收 信号处理 多信号分离 调制识别 细微特征提取 |
| DOI： |
|
| 基金项目: |
|
| Space borne Signal Processing Technology Based on Wideband Reception |
| SU Lin |
| (Southwest China Institute of Electronic Technology，Chengdu 610036，China) |
| Abstract: |
| The signal processing requirement of satellit
e payload is analysed, and the processing flow based on wideband reception is pu
t forward. According to the requirement of realizing important target matching a
nd in consideration of the hardware resource limitation and the poor receiving
sensitivity of wideband reception, the multisignal blind separation,
modulation type recognition under low Signal-to-Noise Ratio(SNR) and finge
rprint signatures analysis algorithms are given, which are suitable for spaceb
orne equipment. Simulation results show the effectiveness of the algorithms. |
| Key words: electronic reconnaissance satellite wideband reception signal processing mul
ti-signal separation modulation type recognition fingerprint signature extrac
t |
《电讯技术》编辑部 