基于区域转移的非平稳抽头延迟线模型构建方法及装置

By dividing the complex urban channel environment into line-of-sight and non-line-of-sight regions and using Markov processes for modeling, the problems of accuracy and computational complexity in line-of-sight and non-line-of-sight conversion identification of existing models are solved, and effective characterization and dynamic adaptation of channel characteristics are achieved.

CN121966766BActive Publication Date: 2026-07-17NAT UNIV OF DEFENSE TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NAT UNIV OF DEFENSE TECH
Filing Date
2026-03-31
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing non-stationary tap delay line models cannot accurately identify the rapid transition between line-of-sight and non-line-of-sight areas in complex urban scenes, resulting in high computational complexity or low accuracy of the recognition algorithm.

Method used

By collecting channel data and GPS data, the system uses root mean square delay spread to divide the line-of-sight and non-line-of-sight regions, and employs Markov processes to model the generation and extinction of channel multipath and region shifts, thereby constructing a channel impulse response model to reduce computational complexity and dynamically track channel changes.

Benefits of technology

It achieves accurate characterization of complex urban channel environments, reduces computational complexity, adapts to rapid switching between line-of-sight and non-line-of-sight, and dynamically adapts to channel changes.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121966766B_ABST
    Figure CN121966766B_ABST
Patent Text Reader

Abstract

本申请涉及无线通信以及信道建模技术领域,提供了一种基于区域转移的非平稳抽头延迟线模型构建方法及装置。通过结合GPS数据与信道数据计算得到的均方根时延扩展,将目标区域动态划分为视距区域和非视距区域,摆脱了单一特征的局限性,使得区域划分更符合实际情况,且只采用了均方根时延扩展这一信道特征,减少了计算复杂度,更适合复杂城区快速变化的信道环境;并通过马尔可夫过程对信道多径的生灭现象与区域转移现象建模表征,从而实现目标区域单天线场景非平稳特性的有效表征;且基于功率信息计算多径生灭概率,基于均方根时延扩展计算区域转移概率,使得模型可以动态跟踪信道变化,适配视距与非视距的快速转换。
Need to check novelty before this filing date? Find Prior Art