Photonic Mixing Approach to Measure the Angle-of-Arrival of Microwave Signals

Zhang, Zuoxing; Chen, Minghua; Guo, Qiang; Chen, Hongwei; Shen, Yang; Xie, Shizhong

doi:10.1364/cleo_at.2016.atu4j.1

Cited by 8 publications

(2 citation statements)

References 3 publications

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“…So far, a series of optical microwave DOA estimation methods have been proposed [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. Among them, a classic approach is to transform the DOA estimation problem into a phase shift estimation problem by measuring the optical power.…”

Section: Introductionmentioning

confidence: 99%

Photonic direction-of-arrival estimation based on compressive sensing

et al. 2021

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The optical approach to estimate the direction-of-arrival (DOA) estimation of microwave signals has attracted a lot of attention recently. Most of the existing methods are based on a one-sensor array system, which converts the DOA estimation problem into an optical power estimation problem. Their main disadvantage is that additional work is needed to represent the relationship between the phase shifts and the optical powers before estimation. The algorithm proposed in this paper is based on an N -sensor array ( N > 2 ), where the optical power vector is obtained first and then a compressive sensing-based approach is applied to directly estimate the phase shift. As demonstrated by simulation results, the proposed algorithm can achieve much better estimation accuracy and robustness than existing optical DOA estimation algorithms considered.

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Section: Introductionmentioning

confidence: 99%

Photonic direction-of-arrival estimation based on compressive sensing

et al. 2021

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“…Microwave photonics provides a solution to determine the AOA of a high-frequency RF signal with reduction in electromagnetic interference as well as the system size, weight and power consumption [1]. Several AOA measurement systems implemented using various microwave photonic approaches have been reported [1][2][3][4][5][6]. Measuring the output power of a microwave photonic system to determine the RF signal AOA is simple and low cost [3][4][5][6].…”

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confidence: 99%

Technique to eliminate RF signal amplitude dependence in AOA measurement

Chen

Chan

2020

Electron. lett.

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A technique to estimate an incoming radio frequency (RF) signal angle of arrival (AOA) irrespective of the RF signal amplitude is presented. It is based on measuring the DC voltage at the output of two modules where each of them consists of an optical modulator, an optical filter and a photodetector. An RF signal amplitude-independent AOA can be obtained from the ratio of the two DC voltages. Experimental results are presented that demonstrate 0°-63°AOA measurement with <3°errors for an RF signal with three different power levels of 3.2, −0.3 and −3.6 dBm into the modulator.

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Photonics-assisted simultaneous detection of distances and directions for multi-targets based on polarization multiplexing and spectrum symmetry

Wang

Yang

et al. 2023

Optics & Laser Technology

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Photonic Mixing Approach to Measure the Angle-of-Arrival of Microwave Signals

Cited by 8 publications

References 3 publications

Photonic direction-of-arrival estimation based on compressive sensing

Photonic direction-of-arrival estimation based on compressive sensing

Technique to eliminate RF signal amplitude dependence in AOA measurement

Photonics-assisted simultaneous detection of distances and directions for multi-targets based on polarization multiplexing and spectrum symmetry

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