Photonic Doppler frequency shift measurement without ambiguity based on cascade modulation

Zhuo, Hao; Wen, Aijun; Tu, Zhaoyang

doi:10.1016/j.optcom.2020.125798

Cited by 7 publications

(3 citation statements)

References 9 publications

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“…Such issues are among the most important areas for research into the construction of a fully functional photonic radar. (4) Further development of the reviewed methods would make it possible to comprehensively solve the problems in the design and development of an all-photonic radar, which, together with angle of arrival estimation [91][92][93], Doppler frequency shift measurement [94,95], and optical filter design [96][97][98][99] based on the reviewed methods and means, would make it possible to create a prototype of a multifunctional information processing block for an IFM device on a single component base.…”

Section: Discussionmentioning

confidence: 99%

Photonic-Assisted Receivers for Instantaneous Microwave Frequency Measurement Based on Discriminators of Resonance Type

et al. 2022

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Photonic-assisted receivers for instantaneous microwave frequency measurement are devices used to measure the instantaneous frequency and amplitude of one or more microwave signals in the optical range, typically used in radar systems. Increasingly higher demands are placed on frequency range, accuracy and resolution during the development of instantaneous microwave frequency measurement applications, and these demands can be satisfied by the creation of new devices and operating principles. To permit further development in this area, it is necessary to generalize the experience gained during the development of devices based on frequency and amplitude discriminators of resonance type, including advanced ones with the best performances. Thus, in this report, we provide an overview of all the basic types of approaches used for the realization of photonic-assisted receivers based on fiber Bragg gratings, integrated Fano and optical ring resonators, Brillouin gain spectrum, and so on. The principles of their operation, as well as their associated advantages, disadvantages, and existing solutions to identified problems, are examined in detail. The presented approaches could be of value and interest to those working in the field of microwave photonics and radar systems, as we propose an original method for choosing photonic-assisted receivers appropriate for the characterization of multiple frequency measurements.

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Section: Discussionmentioning

confidence: 99%

Photonic-Assisted Receivers for Instantaneous Microwave Frequency Measurement Based on Discriminators of Resonance Type

et al. 2022

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“…In-depth analysis on the micro-motion characteristics of multi-feature targets has become an important trend [ 1 , 2 ] in research. Multi-feature targets not only refer to the “multi-feature” properties of the target shape, including the simple target-sphere and the complex target-cone, but also represent the “multi-feature” characteristics of micro-motion, including translation, rotation that can be manifested by angular frequency, and composite motion.…”

Section: Introductionmentioning

confidence: 99%

Micro-motion characteristics of multi-feature targets on the double pulse coherent system

Chen,

Zhang,

Wang

et al. 2024

Heliyon

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“…Making use of Doppler frequency shifts to measure speed is very important in many applications. [1][2][3][4] The measurement precision of Doppler frequency shifts determines the measurement precision of speed. At present, the methods to improve measurement precision are mainly in two aspects: the first is to use non-classical light sources to improve measurement precision, including the precision measurement of phase, [5][6][7][8][9][10] the measurement of small beam deflection, [11][12][13] the measurement of gravitational waves, [14][15][16] and the precise measurement of the magnetic field, [17] and the second is to use a suitable measurement scheme at the receiving end.…”

Section: Introductionmentioning

confidence: 99%

Super-sensitivity measurement of tiny Doppler frequency shifts based on parametric amplification and squeezed vacuum state

Wang¹,

Zhang²,

Zhao³

2021

Chinese Phys. B

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The precision measurement of Doppler frequency shifts is of great significance for improving the precision of speed measurement. This paper proposes a precision measurement scheme of tiny Doppler shifts by a parametric amplification process and squeezed vacuum state. This scheme takes a parametric amplification process and squeezed vacuum state into a detection system, so that the measurement precision of tiny Doppler shifts can exceed the Cramér–Rao bound of coherent light. Simultaneously, a simulation study is carried out on the theoretical basis, and the following results are obtained: for the signal light of Gaussian mode, when the amplification factor g = 1 and the squeezed factor r = 0.5, the measurement error of Doppler frequency shifts is 14.4% of the Cramér–Rao bound of the coherent light in our system. At the same time, when the local light mode and squeezed vacuum state mode are optimized, the measurement precision of this scheme can be further improved by ( 2 n + 1 ) / ( n + 1 ) times, where n is the mode-order of the signal light.

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Photonic Doppler frequency shift measurement without ambiguity based on cascade modulation

Cited by 7 publications

References 9 publications

Photonic-Assisted Receivers for Instantaneous Microwave Frequency Measurement Based on Discriminators of Resonance Type

Photonic-Assisted Receivers for Instantaneous Microwave Frequency Measurement Based on Discriminators of Resonance Type

Micro-motion characteristics of multi-feature targets on the double pulse coherent system

Super-sensitivity measurement of tiny Doppler frequency shifts based on parametric amplification and squeezed vacuum state

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