Výsledky vyhľadávania - "Pulse coding technique"

Improving the Signal-to-Noise Ratio of Time Domain Fiber Bragg Grating Sensor Based on Hybrid Simplex and Golay Coding Technique Autor Elgaud, Mohamed M., Zan, Mohd Saiful Dzulkefly, Ghaith, Abdulfatah Abushagur, Bakar, Ahmad Ashrif A., Arsad, Norhana, Naim, Nani Fadzlina, Mokhtar, Mohd Hadri Hafiz

“…We report on the experimental results of the combination of unique auto-correlation properties of Golay complementary code and Hadamard matrix properties of…”
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Pulse Coding Technique in Differential Cross-Spectrum BOTDR for Improving the Brillouin Frequency Accuracy and Spatial Resolution Autor Dzulkefly Zan, Mohd Saiful, Mokhtar, Mohd Hadri Hafiz, Elgaud, Mohamed M., Bakar, Ahmad. Ashrif A., Arsad, Norhana, Mahdi, Mohd Adzir

“…We propose a novel technique to deploy Golay code in our previously reported differential cross-spectrum BOTDR (DCS-BOTDR) fiber sensor technique to improve…”
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Evaluation of a pulse coding technique for spacial structure characterization Autor Rao, N.A.H.K., Aubry, M.

“…Pulse coding techniques have been used in the past primarily to improve signal to (electronic) noise ratio. However, the flexibility inherent in pulse coding…”
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Evaluation of a pulse coding technique for speckle reduction and structure characterization Autor Rao, N.A.H.K., Abury, M.

“…Pulse coding techniques have been used in the past primarily to improve signal to (electronic) noise ratio. However, the flexibility inherent in pulse coding…”
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Raman-based distributed temperature sensor with 1 m spatial resolution over 26 km SMF using low-repetition-rate cyclic pulse coding Autor Soto, Marcelo A, Nannipieri, Tiziano, Signorini, Alessandro, Lazzeri, Andrea, Baronti, Federico, Roncella, Roberto, Bolognini, Gabriele, Di Pasquale, Fabrizio

“…We experimentally investigate the benefits of a new optical pulse coding technique for long-range, meter and submeter scale Raman-based distributed temperature sensing on standard single-mode optical fibers…”
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Cyclic pulse coding for fast BOTDA fiber sensors Autor Taki, M, Muanenda, Y, Oton, C J, Nannipieri, T, Signorini, A, Di Pasquale, F

“…A cyclic pulse coding technique is proposed and experimentally demonstrated for fast implementation of long-range Brillouin optical time-domain analysis (BOTDA…”
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Pulse coding techniques for ST/MST radar systems: a general approach based on a matrix formulation Autor Spano, E., Ghebrebrhan, O.

“…An approach based on matrix formulation used for the representation and analysis of the signals and processes in ST/MST radar systems using a series of…”
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Velocity and orbital characteristics of micrometeors observed by the Arecibo 430 MHz incoherent scatter radar Autor Li, Yanlin, Zhou, Qihou

“… Coupled with an efficient pulse coding technique, the radar detects over 40 meteors min…”
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SNR improvement in self-heterodyne detection Brillouin optical time domain reflectometer using Golay pulse codes Autor 李永倩;李晓娟;范寒柏;安琪;张立欣

“…The application of Golay pulse coding technique in spontaneous Brillouin-based distributed temperature sensor based on self-heterodyne detection of Rayleigh and Brillouin scattering is theoretically…”
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Simulation Analysis on the Simultaneous Deployment of Brillouin Gain and Loss in Coded Brillouin Optical Time Domain Analysis (BOTDA) Fiber Sensor Autor Zan, M S D, Elgaud, M M, Zainuddin, A R, Kadhim, A S, Mokhtar, M H H, Arsad, N, Bakar, A A A.

“… and the pulse coding technique in the PSP-BOTDA has improved the dynamic sensing range and the signal-to-noise improvement ratio (SNIR) of the sensor. By performing simulation over 500 m of fiber, we have also successfully demonstrated 10-cm of high spatial resolution measurement with the use of 1ns of coded pulse duration…”
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Clear air boundary layer spaced antenna wind measurement with the Multiple Antenna Profiler (MAPR) Autor Cohn, S. A., Brown, W. O. J., Martin, C. L., Susedik, M. E., Maclean, G. D., Parsons, D. B.

“…) and signal to ground-clutter (SCR) ratios. By using a standard pulse-coding technique and upgrading the profiler control software, increases in average power and SNR were achieved, making routine measurements in clear air possible…”
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New type distributed optical fiber temperature sensor (DTS) based on Raman scattering and its' application Autor Wang, Jian-Feng, Liu, Hong-Lin, Zhang, Shu-Qin, Yu, Xiang-Dong, Sun, Zhong-Zhou, Jin, Shang-Zhong, Zhang, Zai-Xuan

“… So a variety of key techniques such as Raman amplification, pulse coding technique, Raman related dual-wavelength self-correction technique and embedding optical switching technique are researched…”
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Improvement of signal to noise ratio of time domain mutliplexing fiber Bragg grating sensor network with Golay complementary codes Autor Elgaud, M.M., Zan, M.S.D., Abushagur, A.G., Bakar, A. Ashrif A.

“…•Pulse coding technique gives better utilization of FBG dynamic range measurement. This paper reports the employment of autocorrelation properties of Golay complementary codes (GCC…”
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Advanced cyclic coding technique for long-range Raman DTS systems with meter-scale spatial resolution over standard SMF Autor Soto, M. A., Nannipieri, T., Signorini, A., Bolognini, G., Di Pasquale, F., Lazzeri, A., Baronti, F., Roncella, R.

“…A long-range fast-measurement Raman-based distributed temperature sensor (RDTS) with a meter spatial resolution exploiting a quasi-periodic pulse-coding technique is proposed in this paper…”
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Investigation of a pulse compression technique for medical ultrasound: a simulation study Autor Rao, N A

“… In the paper, this issue is examined through model-simulation studies. Frequency-modulation (FM) chirp, considered in the study, is just one form of pulse coding technique…”
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Mathematical Model and Reference Frequency Optimization for Digital Dual-Band Pulsewidth Modulation Autor Chen, Zihao, Yang, Jun, Zhang, Xiuyin, Bai, Jinliang, Feng, Tianjian, Tang, Jie, Chen, Guanhong, Jiang, Zepeng

“…In all-digital transmitter (ADT), pulsewidth modulation (PWM) is a popular pulse coding technique…”
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30-km spontaneous-Brillouin distributed temperature sensor employing Simplex-coding and low optical input power Autor Soto, M.A., Bolognini, G., Di Pasquale, F.

“…In this work we have applied optical pulse-coding technique to spontaneous Brillouin-based distributed temperature sensor (BDTS…”
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Analysis of pulse modulation format in coded BOTDA sensors Autor Soto, Marcelo A., Bolognini, Gabriele, Di Pasquale, Fabrizio

“…) sensors using pulse coding techniques has been carried out. Pulse coding with conventional non-return-to-zero (NRZ…”
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A new coding method Autor Jinghong Xue, Ming Jin, Xiaolin Qiao

“… A new pulse coding technique for a single transmitted pulse is utilized in the paper with respect to the conflicting problem mentioned above…”
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Simplex-coded BOTDA fiber sensor with 1 m spatial resolution over a 50 km range Autor Soto, Marcelo A, Bolognini, Gabriele, Di Pasquale, Fabrizio, Thévenaz, Luc

“…In this Letter, we propose the use of optical pulse coding techniques for long-range distributed sensors based on Brillouin optical time-domain analysis (BOTDA…”
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