A5038952724- Optical Network Technologies
- Photonic and Optical Devices
- Non-Destructive Testing Techniques
- Interconnection Networks and Systems
- Drilling and Well Engineering
- Mineral Processing and Grinding
- Oil and Gas Production Techniques
- Blind Source Separation Techniques
- Semiconductor Lasers and Optical Devices
- Welding Techniques and Residual Stresses
- Embedded Systems Design Techniques
- Advanced Photonic Communication Systems
- Machine Fault Diagnosis Techniques
- Advanced Optical Network Technologies
- Geophysical and Geoelectrical Methods
China University of Petroleum, Beijing
2020-2024
Beijing University of Posts and Telecommunications
1997-2002
Continuous wave (CW) mud pulse telemetry technology has high-speed real-time data transmission that is widely used in drilling and logging measurements. It important to effectively eliminate the strong pump noise with frequency-variant channel extract extremely weak signal which carries downhole information. In this paper, an adaptive cancellation (ANC) system for processing designed based on main auxiliary dual sensors. addition, improved variable step-size iteration algorithm proposed a...
Based on a comprehensive analysis of the existing methods for measuring adjacent well distances, along with their advantages and disadvantages, this study employs theoretical analysis, simulation experiments, other research to investigate distance measurement method based current excitation. In response need controlling connection relief wells, utilizing dual-electrode excitation during drilling is proposed. This approach facilitates synchronous measurements while drilling, significantly...
The survivability related to hardware failures for the SDH network is analysed. We give features of failure 2-fiber and 4-fiber bidirectional self-healing ring (BSHR/2 BSHR/4). With an assumption traffic pattern, models single-ring multiple-rings are established, analysis carried out with these models.
The influence on the buffer capacity from timing jitter with different features has been analysed and method of selection corresponding to a concrete communication system is proposed. Under multiple-sources jitter, stable result for given through pointer adjustment process, bit accumulation in variations. This shows that can be reduced greatly compare conventional method.
We establishes a general model for the design of all-optical protection ring synchronous digital hierarchly (SDH) in this paper. The signal-noise ratio (SNR) at 10 -9 bit error (BER) is critical parameter determining maximum size and obtained from comprehensive investigations about amplified spontaneous emission (ASE), beating noise among various features optical limiting amplifiers (OLA). A forward correction (FEC) deployed to increase improve transmission performance which degraded due...