A Fabry-Perot scanning receiver for microwave signal processing

Winnall, S.T.; Lindsay, A.C.

doi:10.1109/22.775483

Cited by 95 publications

(29 citation statements)

References 5 publications

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“…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.

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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)

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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.

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“…Usually, the frequency of the intercepted radar signal can vary from hundreds of MHz to tens of GHz. As the conventional electronic techniques for microwave frequency measurement are thought to be slow, limited in bandwidth and vulnerable to electromagnetic interference (EMI), numerous photonic approaches to realizing microwave frequency measurement have been proposed and demonstrated [2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…In [2][3][4], photonic scanning receivers were proposed for the microwave frequency measurement. In [2], a Fabry-Perot (F-P) etalon-based temporal scanning receiver system was proposed with a scanning range of 40 GHz and a resolution of 90 MHz.…”

Section: Introductionmentioning

confidence: 99%

Instantaneous microwave frequency measurement with improved measurement range and resolution based on a polarization modulator

Chi²,

Zhang³

et al. 2010

2010 IEEE International Topical Meeting on Microwave Photonics

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We propose a novel photonic approach to implementing instantaneous microwave frequency measurement with improved measurement range and resolution. A polarization modulator (PolM) is employed, which functions with a polarizer as an intensity modulator (IM) in one channel, and with a length of polarization-maintaining fiber as a two-tap photonic microwave bandpass filter (PMBF) in another channel. A linear amplitude comparison function (ACF) that relates the microwave frequency and the microwave powers at the outputs of the two channels is obtained, which ensures an improved frequency measurement range and resolution. An experiment is performed. A measurement range of 0.5-40 GHz with a resolution of ±0.5 GHz under different input microwave power levels is realized.

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“…ICROWAVE frequency measurement based on photonic techniques has attracted significant interest recently [1]- [7]. The primary advantages of microwave frequency measurement in the optical domain are the real-time and high-frequency operations which may not be achievable using conventional electronic techniques.…”

mentioning

confidence: 99%

“…The primary advantages of microwave frequency measurement in the optical domain are the real-time and high-frequency operations which may not be achievable using conventional electronic techniques. In [1], an approach to microwave frequency measurement using an optical scanning receiver based on a tunable Fabry-Pérot interferometer was reported. Microwave frequency measurement can also be implemented based on a few other techniques, such as the use of an optical phased array [2], a high-resolution free-space diffraction grating [3], an array of phase-shifted gratings [4], or an integrated Bragg-grating combined with a Fresnel lens [5].…”

mentioning

confidence: 99%

An Optical Approach to Microwave Frequency Measurement With Adjustable Measurement Range and Resolution

Zou

Yao

2008

IEEE Photon. Technol. Lett.

116

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Abstract-We propose an approach for the measurement of microwave frequency in the optical domain with adjustable measurement range and resolution. In the proposed approach, two optical wavelengths with a large wavelength spacing are modulated by an unknown microwave signal in a Mach-Zehnder modulator (MZM). The optical output from the MZM is sent to a dispersive fiber to introduce different chromatic dispersions, leading to different microwave power penalties. The two wavelengths are then separated, with the microwave powers measured by two photodetectors. A fixed relationship between the microwave power ratio and the microwave frequency is established. The microwave frequency is estimated by measuring the two microwave powers. The frequency measurement range and resolution can be adjusted by tuning the wavelength spacing. Different frequency measurement ranges and resolutions are demonstrated experimentally.Index Terms-Fiber, microwave frequency measurement, microwave photonics, optical microwave signal processing.

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A Fabry-Perot scanning receiver for microwave signal processing

Cited by 95 publications

References 5 publications

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

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

Instantaneous microwave frequency measurement with improved measurement range and resolution based on a polarization modulator

An Optical Approach to Microwave Frequency Measurement With Adjustable Measurement Range and Resolution

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