.png){kind=icon}
返回
Antiambiguity Direction Finding by Harmonics' Amplitudes With Two-Element Time-Modulated Array
.png){kind=icon}
PRE
AI
DOI：10.1109/LAWP.2024.3483261.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
A novel antiambiguity method is proposed to eliminate the mirror-image ambiguity generated in direction finding (DF) with the two-element time-modulated array based simply on harmonic amplitude. When the time delay of the two modulation sequences and the array element spacing satisfy a specific relationship, the amplitude difference between the +1st and the +1st harmonics shows monotonicity with the variation of the incident angle. Consequently, the incident angle can be estimated without the interference of mirror-image ambiguity, solely based on the amplitude-frequency measurement result. This method can be easily implemented by frequency sweeping devices. Therefore, the proposed method is beneficial to develop DF systems with low complexity and cost. Numeric simulations and experiment have been conducted to verify its effectiveness.
Keyword:
Harmonic analysis
Modulation
Antennas
Numerical models
Frequency modulation
Fast Fourier transforms
Delay effects
Mathematical models
Delays
Costs
Antiambiguity
direction finding (DF)
fast Fourier transform
two-element time-modulated array (TMA)
期刊
IF:
4.8
论文数:
1.0W
被引数:
2.8W
机构
引用论文
A Compensation Method of Nonideal Modulation Pulse for Direction Finding With Time-Modulated Array时间调制阵列测向的非理想调制脉冲补偿方法
.png){kind=icon}
PREAI
分享收藏Direction-Finding Based on Time-Modulated Array Without Sampling Synchronization基于时间调制阵列的无采样同步测向
PREAI
分享收藏Single-Channel Spatial Spectrum Estimation Direction Finding by the Time-Modulated Linear Array时间调制线阵单通道空间谱估计测向
PREAI
分享收藏
Vehicle Positioning With Unitary Approximate Message Passing-Based DOA Estimation Under Exact Spatial Geometry精确空间几何下基于单一近似消息传递的DOA估计车辆定位
PREAI
分享收藏
查看更多内容