| 摘要: |
| 以实现卫星认知无线通信中频谱空穴探测为目的，列举并比较了目前用于频谱感知的
六种算法。根据各个算法的自身特点指出其应用场合，分别分析了它们的优缺点，通过计算
机仿真给出了能量检测、匹配滤波和压缩感知的检测性能，并指出压缩感知对硬件复杂度的
要求最小，适合卫星认知无线通信。 |
| 关键词: 认知无线电 卫星通信 频谱感知 能量检测 匹配滤波 压缩
感知 |
| DOI： |
|
| 基金项目: |
|
| Comparison of spectrum sensing algorithms for cognitive radio applications over satellite communication |
| CHEN Peng,XU Feng |
| (China Academy of Space Technology(Xi′an), Xi′an 710100，China) |
| Abstract: |
| To achieve spectrum holes detection in cognitive satellite communicati
on, six spectrum sensing methodologies are introduced and compared. According to
their characteristics, the application of each method and the analysis of advan
tages and disadvantages are presented. Computer simulation results show the perf
o
rmances of energy detection, match filtering and compressed sensing. It is point
ed out th
at compressed sensing is suitable for satellite communication because of minimum
hardware complexity. |
| Key words: cognitive radio satellite communication spectrum sensing energy det
ection match filtering compressive sensing |
《电讯技术》编辑部 