Photonic compressive receiver for multiple microwave frequency measurement

Wang, Sitong; Wu, Guiling; Sun, Yiwei; Chen, Jianping

doi:10.1364/oe.27.025364

Cited by 22 publications

(7 citation statements)

References 17 publications

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“…The time delays among these events are then measured to determine the unknown RF frequencies. By distinguishing different central wavelengths [14], [15] or directly introducing silicon photonic scanning devices [16], the above approach was further extended to measure multi-tune signals. On the basis of ensuring high frequency accuracy and large measurement range, the Ref.…”

Section: Introductionmentioning

confidence: 99%

Power-Independent Microwave Instantaneous Frequency Measurement Based on Combination of Brillouin Gain and Loss Spectra

Wang

Yang

et al. 2022

IEEE Photonics J.

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Photonics-assisted microwave instantaneous frequency measurement (IFM) is considered as a promising technique for detecting an unknown radiofrequency (RF) signal, which has advantages of broad frequency measurement range and fast processing speed. Up to date, there is no photonics-assisted IFM system that can essentially measure an unknown RF signal timefrequency information with power fluctuating seriously. Moreover, the measurement accuracy and frequency modulation recognition are not as good as those of traditional electronic methods. Here, we propose an IFM scheme based on the combination of Brillouin gain spectrum (BGS) and Brillouin loss spectrum (BLS), which is RF-power-independent with high measurement efficiency. The combination of BGS and BLS to construct the amplitude comparison function (ACF) can reduce the influence of RF signal power fluctuation within 21.27 dB by single-shot measuring. When an appropriate frequency interval with frequency domain monotonous power of microwave comb signal is modulated on the pump lightwave, the IFM accuracy of the unknown signal reaches about 1 MHz. After the initial calibration of the system, it can recognize the time-frequency variation of single tone signal, linear frequency modulated signal (LFM), nonlinear frequency modulated signal (NLFM), and Costas signal. This scheme will help to promote the application of the IFM in the field of spectrum reconnaissance and reception.

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Section: Introductionmentioning

confidence: 99%

Power-Independent Microwave Instantaneous Frequency Measurement Based on Combination of Brillouin Gain and Loss Spectra

Wang

Yang

et al. 2022

IEEE Photonics J.

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“…Generally, the photonics-assisted IFM system can be divided into three categories based on frequency-to-power mapping [4][5][6], frequency-to-time mapping [7,8], and frequency-tospace mapping [9][10][11][12][13]. The majority of frequency-to-power mapping systems rely on producing an amplitude comparison function (ACF), which constructs the relationship between the unknown microwave frequency and the optical or electrical power.…”

Section: Introductionmentioning

confidence: 99%

Photonic Multiple Microwave Frequency Measurement System with Single-Branch Detection Based on Polarization Interference

Zhu

Yan

et al. 2023

Electronics

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A photonic microwave frequency measurement system with single-branch detection based on polarization interference is proposed. In this scheme, a 15-line non-flat optical frequency comb (OFC) based on sawtooth signal modulation via a Mach–Zehnder modulator is generated. The intercepted microwave signal with multiple-frequency components can be measured by frequency down-conversion with this simple structure. This system can measure the multi-tone microwave signals in real time. The single-branch detection makes the system a simple and compact structure and avoids the unbalanced variation, as in a two-branches scheme. The blind area of the system can be solved by adjusting the comb-line spacing of the OFC. A simulation is carried out and related discussion is given. The result reveals that it can measure multi-tone microwave signals with a resolution of less than 2 MHz over 0.1–12 GHz.

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“…[1,2] The traditional electronics method is no longer suitable for future development due to the disadvantages of large loss, small measurement bandwidth and no immunity to electromagnetic interference, but the photonics method perfectly overcomes these shortcomings. [3][4][5] The researchers have proposed many IFM schemes based on photonics methods, for example, based on the frequency-space mapping method, [6][7][8] frequency-time mapping method, [9][10][11][12][13][14] frequency-phase mapping method, [15,16] and frequency-power mapping method. Among them, the method based on frequency-power mapping is the most common.…”

Section: Introductionmentioning

confidence: 99%

Instantaneous frequency measurement using two parallel I/Q modulators based on optical power monitoring

Wang¹,

Ning²,

Li³

et al. 2022

Chinese Phys. B

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A scheme for instantaneous frequency measurement (IFM) using two parallel I/Q modulators based on optical power monitoring is proposed. The amplitude comparison function (ACF) can be constructed to establish the relationship between the frequency of radio frequency (RF) signal and the power ratio of two optical signals output by two I/Q modulators. The frequency of RF signal can be derived by measuring the optical power of the optical signals output by two I/Q modulators. The measurement range and measurement error can be adjusted by controlling the delay amount of the electrical delay line. The feasibility of the scheme is verified, and the corresponding measurement range and measurement error of the system under different delay amounts of the electrical delay line are given. Compared with previous IFM schemes, the structure of this scheme is simple. Polarization devices, a photodetector and an electrical power meter are not used, which reduces the impact of the environmental disturbance on the system and the cost of the system. In simulation, the measurement range can reach 0 GHz–24.5 GHz by adjusting the delay amount of the electrical delay line τ = 20 ps. The measurement error of the scheme is better at low frequency, and the measurement error of low frequency 0 GHz–9.6 GHz can reach –0.1 GHz to +0.05 GHz.

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Photonic compressive receiver for multiple microwave frequency measurement

Cited by 22 publications

References 17 publications

Power-Independent Microwave Instantaneous Frequency Measurement Based on Combination of Brillouin Gain and Loss Spectra

Power-Independent Microwave Instantaneous Frequency Measurement Based on Combination of Brillouin Gain and Loss Spectra

Photonic Multiple Microwave Frequency Measurement System with Single-Branch Detection Based on Polarization Interference

Instantaneous frequency measurement using two parallel I/Q modulators based on optical power monitoring

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