MIMO-OFDM JSAC波形设计基于相扰动和混合优化
Zheming Guo1, Baixiao Chen1, Shuai Peng1
1National Key Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, China.
Sensors (Basel, Switzerland)
|November 27, 2025
概括
本研究介绍了一种新的波形设计,用于使用MIMO技术的联合传感和通信 (JSAC) 系统. 新设计显著提高了波形性能,减少干扰并提高了复杂电磁环境中的功能.
科学领域:
- 电气工程 电气工程
- 信号处理 信号处理
- 电磁兼容性 电磁兼容性 电磁兼容
背景情况:
- 现代战斗平台面临着日益复杂的电磁环境.
- 联合传感和通信 (JSAC) 技术对于集成的传感和通信功能至关重要.
- JSAC波形设计是实现与单个波形同时传感和通信的关键.
研究的目的:
- 为多输入多输出 (MIMO) JSAC系统提出一种新的波形设计.
- 通过将相干扰引入到二进制相位移键 (BPSK) 信号中来增强波形性能.
- 为了解决波形设计中的高维,非凸的优化挑战.
主要方法:
- 利用直角频率分割多重复合 (OFDM) 通过低交叉相关性来减少信号干扰.
- 使用线性频率调制 (LFM) 作为载波形状来缩小自相对应主叶宽度.
- 开发一个混合优化算法 (QGPV),结合量子遗传算法 (QGA),量子粒子群优化 (QPSO) 和可变邻域搜索 (VNS).
主要成果:
- 拟议的QGPV算法与典型方法相比显示出更高的性能.
- 在五次代中实现了高峰侧叶水平 (PSL) 的显著抑制,达到大约-21dB.
- 验证了拟议方法在改善波形特征方面的有效性.
结论:
- 新的波形设计和QGPV优化算法对MIMO JSAC系统有效.
- 该方法提供了改进的波形特征,在通信性能方面进行了可接受的权衡.
- 这项研究有助于推进JSAC技术用于复杂的电磁环境.
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