通感一体化关键技术与应用

摘要：通信网络在感知领域具有巨大的应用空间。指出通信系统用于感知的能力边界，包括感知距离、感知分辨率、感知精度等关键技术指标。基于正交频分复用（OFDM）波形的感知系统模型，提出一种利用匹配滤波进行感知信号参数估计的方法。提出的高分辨率感知信号参数估计方法，不仅能够解决感知过程中角度估计的低分辨率问题，还能大大降低计算复杂度。认为在所能获得的感知信息和服务基础之上，通感一体化（ISAC）系统将更好地服务于未来智慧低空、智慧交通、智慧生活等。

关键词：ISAC；感知性能；参数估计；高分辨率

Abstract: Communication networks have great application space in the field of sensing. The capability boundaries of sensing based on communication systems are put forward, including key technical indicators such as sensing distance, sensing resolution, and sensingaccuracy. Based on the sensing system model of orthogonal frequency-division multiplexing (OFDM) waveforms, a parameters estimation method based on matched filters is proposed. The proposed parameters estimation method with high resolution only solves the low resolution problem of angle estimation in the sensing process, but also greatly reduces computational complexity of angle estimation. It is believed that on the basis of available perceptual information and services, the integrated sensing and communications (ISAC) system will better serve intelligent low altitude, intelligent transportation, intelligent life, etc. in the future.

Keywords: ISAC; sensing performance; parameter estimation; high resolution