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Indoor 3D Passive Target Tracking Based on WiFi
2024 IEEE 12th Asia-Pacific Conference on Antennas and Propagation (APCAP)
Year: 2024 | Conference Paper |
Recently, significant progress has been made in indoor passive tracking technology. However, existing studies mainly focus on 2D tracking or utilize a large number of devices to obtain 3D information of the target. In this paper, a indoor 3D passive tracking system based on data augmentation is proposed. We established a multidimensional parameter estimation model based on L array under the channe...Show More
Power Spectral Density Distribution Based GCN Construction for Through-the-wall Target Detection
2022 IEEE 10th Asia-Pacific Conference on Antennas and Propagation (APCAP)
Year: 2022 | Conference Paper |
Cited by: Papers (1)
With the difference of the target state, the power spectral density (PSD) distribution on the channel states information (CSI) time-frequency map is different. Therefore, this paper analyzes the time-frequency domain feature of CSI and proposes an indoor through-the-wall (TTW) passive object detection algorithm based on graph convolutional network (GCN). The experimental results show that the algo...Show More
A Phase Error Elimination Method in Asynchronous Communication System
2022 IEEE 10th Asia-Pacific Conference on Antennas and Propagation (APCAP)
Year: 2022 | Conference Paper |
Previous ranging or localization systems achieve an accurate time of flight (TOF) estimation based on strict time synchronization between transmitter and receiver, which is difficult to realize in a practical communication system. To tackle this problem, we propose a phase error elimination method to achieve accurate ranging in an asynchronous manner. We implement the proposed method using a softw...Show More
A Parameter Estimation Method for Channel State Information Based on Matrix Pencil
2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)
Year: 2022 | Conference Paper |
Cited by: Papers (1)
Aiming at the requirement of real-time positioning due to high computational complexity in Wi-Fi indoor positioning technology, a joint Doppler Frequency Shift (DFS), angle of arrival (AoA) and time of flight (ToF) estimation based on improved matrix pencil method is proposed. First, the data matrix containing doppler velocity, angle and delay parameter information is obtained. Then, the proposed ...Show More
Through-the-Wall Passive Detection for Moving Targets based on Channel State Information Reconstruction
2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)
Year: 2022 | Conference Paper |
Under a through-the-wall (TTW) scenario, existing passive moving target detection algorithms based on Wi-Fi signal could not clearly distinguish the number of targets as transceivers are placed on the same side of a wall. In order to address the above problem, a novel detection algorithm is proposed based on channel states information (CSI) reconstruction. We first correct phase errors, and then e...Show More
Indoor Localization Using a Single Receiver in NLoS Environments
2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT)
Year: 2021 | Conference Paper |
Cited by: Papers (2)
At present, most of the indoor localization methods are based on Line-of-Sight (LoS) propagation path. However, Non-Line-of-Sight (NLoS) propagation degrades those methods significantly, which happens frequently in indoor environments. In this paper, we present a multipath assisted indoor localization system with only a single receiver in NLoS environment. First, we use the 3D Recursively Applied ...Show More
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