空时频探通一体认知波形设计方法研究

This project mainly deals with cognitive design problem of the Space-Time-Frequency Dual-Use Waveform (STFDUW). Cognitive STFDUW design theory can be established and improved by investigating the following fundamental problems: the principle among the STFDUW, the targets and the environments, the detection functions, modulation and demodulation models, the spectral coexistence and the waveform constraints, mathematical optimization algorithms and performance evaluation. This project will propose the modulation and demodulation models based on the frequency stop band location, partial phase, as well as the precoding matrix to solve the effective communication information embedding problem, and present several novel optimization algorithms, i.e., the block successive upper-bound minimization based algorithm, to solve the multiple constraints non-convex STFDUW mathematical problem. This project will build the semi-physical simulation verification platform, and carry out the theoretical analysis, simulation and feasibility tests. The research of this project is of great significance, since it can improve the fundamental research levels and the innovational abilities of our country for the radar-communication integration technology. Moreover, the theory results can be applied to the modern and next generation integrated detection and communication systems, to achieve the efficient use of limited electromagnetic spectrum.

本项目旨在解决空时频探通一体认知波形设计问题，通过研究空时频多维发射波形与雷达目标以及环境作用机理、探测性能函数、通信信息调制与解调方法、电磁频谱兼容与波形约束、数学优化算法与性能评估等基本问题，提出了基于频带位置、部分相位和预编码矩阵等调制方式，以及基于分块连续上界变换的优化等算法，解决了通信信息的空时频多维高效嵌入以及多约束非凸高维波形最优化求解等关键科学问题，建立和完善空时频探通一体认知波形设计理论体系；搭建半实物仿真验证平台，完成探通一体波形设计性能的理论分析、仿真以及可行性试验验证。本项目研究可提高我国探通一体化技术领域的基础研究水平和自主创新能力，具有重要的科学意义；其理论成果和技术还可应用于现代和未来探通一体化系统，实现有限电磁频谱的高效利用。

针对电子信息系统对抗中有限电磁频谱资源高效利用问题，本项目通过以雷达探测为主的波形设计中，增加通信功能，开展了空时频探通一体认知波形设计方法研究，具体包括了:探通一体认知波形设计理论分析与建模、基于空域波束赋形以及基于发射接收联合优化的探通一体认知波形设计方法研究，并利用半实物仿真平台，完成了探通一体波形设计性能的理论分析、仿真以及可行性试验验证，同时本项目也将上述方法延伸至认知多功能波形与波束设计，有效提升了复杂电磁环境下系统抗杂波/干扰能力。发表学术或录用论文36篇，其中，在IEEE T-SP和IEEE T-AES等国际学术期刊发表或录用学术论文21篇；在IEEE Radar Conference等国际会议发表或录用学术论文11篇，其中EI已收录9篇；申请国家发明专利18项，其中已授权13项；出版英文专著1部。该项目的研究提高了我国探通一体化技术领域的基础研究水平和自主创新能力，具有重要的科学意义；其理论成果和技术还可应用于现代和未来探通一体化系统，实现电磁频谱的高效利用。