基于RZNN模型的TDOA和AOA移动目标定位方法

By using TDOA and AOA localization methods based on the RZNN model, the problems of nonlinearity and computational complexity in traditional localization technologies are solved, achieving high-precision and fast localization in noisy environments, and possessing global convergence and robustness.

CN121899752BActive Publication Date: 2026-07-17GUANGDONG OCEAN UNIVERSITY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG OCEAN UNIVERSITY
Filing Date
2026-01-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In TDOA and AOA positioning estimation, existing technologies suffer from nonlinearity, high computational complexity, poor real-time performance, and large angle estimation errors due to factors such as Doppler effect and antenna array phase mismatch, making it difficult to achieve high-precision real-time positioning.

Method used

An RZNN-based approach is adopted, which establishes dynamic equations for TDOA and AOA, performs equivalent linear transformations, and introduces a polynomial noise compensation term and a nonlinear logarithmic mapping activation function to construct an RZNN model. This model solves the localization problem in real time, suppresses high-order time-varying noise interference, and improves localization accuracy and robustness.

Benefits of technology

It achieves high-precision, low-latency, and highly stable positioning in complex noisy environments, possesses global convergence capability, and improves positioning accuracy and computational efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121899752B_ABST
    Figure CN121899752B_ABST
Patent Text Reader

Abstract

本发明公开了一种基于RZNN模型的TDOA和AOA移动目标定位方法,属于无线定位技术领域。该方法包括:基于几何关系建立TDOA和AOA的动态方程组;对方程进行线性变换并定义误差函数;引入多项式噪声补偿项和非线性对数映射激活函数构建RZNN模型;通过模型实时求解线性方程,获得声源估计轨迹并与理论轨迹对比;模拟噪声影响以评估性能。该方法在RZNN模型中加入抗噪项和激活函数,提高了鲁棒性、收敛速度和精度,在时变和高阶噪声环境下保持高精度和低时延。
Need to check novelty before this filing date? Find Prior Art