Phase modulation parallel optical delay detector for microwave angle-of-arrival measurement with accuracy monitored

Cao, Zizheng; Wang, Q.; Lu, Rongguo; Boom, H.P.A. van den; Tangdiongga, E.; Koonen, Ton

doi:10.1364/ol.39.001497

Cited by 40 publications

(15 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A host of photonic approaches have been proposed and experimentally demonstrated . In , a simple approach using a two‐tap transversal photonic microwave filter was proposed to measure the AOA.…”

Section: Photonic Measurement Of Angle‐of‐arrivalmentioning

confidence: 99%

“…Mathematically, the AOA (i.e., θ ) is given by

θ = {prefixcos}^{- 1} (τ c / d),

where τ is the TDOA which is proportional to d , the distance between the two antenna elements connected to the two EOMs. The two EOMs in the system in could be replaced by a single dual‐electrode MZM or DP‐MZM , for implementing DFS measurement. An array of integrated optical ring resonators (ORR) was employed for AOA or radiation pattern measurement in , providing an instantaneous bandwidth of 500 MHz or wider.…”

Section: Photonic Measurement Of Angle‐of‐arrivalmentioning

confidence: 99%

See 1 more Smart Citation

Photonics for microwave measurements

Zou

Lü

Pan

et al. 2016

Laser & Photonics Reviews

304

View full text Add to dashboard Cite

As an emerging topic, photonic-assisted microwave measurements with distinct features such as wide frequency coverage, large instantaneous bandwidth, low frequencydependent loss, and immunity to electromagnetic interference, have been extensively studied recently. In this article, we provide a comprehensive overview of the latest advances in photonic microwave measurements, including microwave spectrum analysis, instantaneous frequency measurement, microwave channelization, Doppler frequency-shift measurement, angle-of-arrival detection, time-frequency analysis, compressive sensing, and phase-noise measurement. A photonic microwave radar, as a functional measurement system, is also reviewed. The performance of the photonic measurement solutions is evaluated and compared with the electronic solutions. Future prospects using photonic integrated circuits and software-defined architectures to further improve the measurement performance are also discussed.

show abstract

Section: Photonic Measurement Of Angle‐of‐arrivalmentioning

confidence: 99%

“…Mathematically, the AOA (i.e., θ ) is given by

θ = {prefixcos}^{- 1} (τ c / d),

Section: Photonic Measurement Of Angle‐of‐arrivalmentioning

confidence: 99%

Photonics for microwave measurements

Zou

Lü

Pan

et al. 2016

Laser & Photonics Reviews

304

View full text Add to dashboard Cite

show abstract

“…Especially, a number of photonic approaches to microwave measurements, for instance, spectrum analysis [14][15][16][17], frequency estimation [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33], angle-of-arrival measurement [34][35], and DFS measurement [36][37][38][39], have been proposed recently. For DFS measurement, based on transversal filtering concept, a reconfigurable microwave photonic in-phase and quadrature detector is designed for DFS estimation in [36], wherein precise wavelength control is required.…”

Section: Introductionmentioning

confidence: 99%

Wideband Microwave Doppler Frequency Shift Measurement and Direction Discrimination Using Photonic I/Q Detection

Lü

Pan

Zou

et al. 2016

J. Lightwave Technol.

View full text Add to dashboard Cite

An enhanced approach to realizing wideband microwave Doppler frequency shift (DFS) measurement and direction discrimination based on photonic in-phase and quadrature (I/Q) coherent detection is proposed and demonstrated experimentally. In the proposed approach, the DFS between the transmitted microwave signal and the received echo signal is converted into two quadrature low-frequency electrical signals through the coherent detection by using an optical hybrid and two balanced photodetectors (BPDs). The microwave DFS of interest can be estimated with an unambiguous direction, and in particular with a greatly improved resolution. Meanwhile, photonic coherent and balanced detection effectively eliminates the optical signal to signal beating interferences. In the proof-of-concept experiment, the DFSs from -90 to +90 kHz are successfully estimated for microwave signals at 10, 14, 18, and 38 GHz. The measurement errors are estimated to be less than 5.8 Hz which are an order of magnitude lower than those (i.e., 60 Hz) released before. Such results provide a high resolution for radial velocity measurement as well. In addition, the performance of the proposed approach in term of the signal-to-noise ratio and stability is discussed.Index Terms-Doppler frequency shift measurement, microwave photonics, I/Q coherent detection, optical microwave processing. 0733-8724 (c)

show abstract

“…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].…”

mentioning

confidence: 99%

“…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]. However, a calibration process that involves measuring either the system output power at a 0°AOA [4] or the incoming RF signal amplitude [6], is required to eliminate the RF signal amplitude dependence in the system output power prior to the AOA measurement.…”

mentioning

confidence: 99%

Technique to eliminate RF signal amplitude dependence in AOA measurement

Chen

Chan

2020

Electron. lett.

View full text Add to dashboard Cite

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.

show abstract

Phase modulation parallel optical delay detector for microwave angle-of-arrival measurement with accuracy monitored

Cited by 40 publications

References 8 publications

Photonics for microwave measurements

Photonics for microwave measurements

Wideband Microwave Doppler Frequency Shift Measurement and Direction Discrimination Using Photonic I/Q Detection

Technique to eliminate RF signal amplitude dependence in AOA measurement

Contact Info

Product

Resources

About