20 Result(s)
within
English
Communications Engineering, Networks
Control, Robotics, Mechatronics
Zhigang **
Conference Paper
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Chapter and Conference Paper
Spoofing Monitoring Method Research of GNSS Based on LEO Doppler Measurement
Communication and navigation integration will be a staple of integrated PNT system. LEO satellites, served as an important part of the system, provide support for constructing the future PNT system and improvi...
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Chapter and Conference Paper
Environment Driven and Task Driven Modeling of Air-Sea Cross-Domain Channels
This article uses a combination of environment-driven and task-driven methods to model the channel in a cross-domain communication system involving UAV, gateways, and underwater nodes. The modeling process inc...
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Chapter and Conference Paper
BDS-3 Signal in Space Ranging Errors Performance and On-Orbit Status Monitoring and Evaluation Based on Historical Data from 2020 ~ 2022
Signal in Space (SIS) performance, particularly SIS Range Error (SISRE), is the core index for evaluating the navigation, positioning, and timing accuracy and integrity monitoring of the Global Navigation Sate...
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Chapter and Conference Paper
Single Satellite Positioning Method and Error Characteristic Analysis of LEO Navigation Satellites
Aiming at the problem of few visible satellites and short visible time for LEO cooperative navigation constellation leading to the difficulty of positioning, this paper studies multi-epoch positioning method b...
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Chapter and Conference Paper
The On-line Filtering Technology of INS/CNS Composite Navigation
The INS/CNS (Inertial Navigation System/Celestial Navigation System) composite navigation system error models and different error filtering estimation methods are studied in the paper. To avoid the difficult p...
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Chapter and Conference Paper
Distributed Formation Control of Multi-QUAV Based on Leader-Follower
Aiming at the formation tracking problem of multiple quadrotor unmanned aerial vehicle (QUAV) with the external disturbance, this paper proposes a disturbance-observer-based distributed formation control strat...
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Chapter and Conference Paper
Research on the Influence of Satellite Signal Transmission Channel’s Non-ideal Characteristics on the Quality of Different Envelope Signals
At present, most satellite navigation systems use constant envelope multiplexed signals, in order to reduce the non-linear influence of the power amplifier as much as possible. However, the actual signal trans...
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Chapter and Conference Paper
Preliminary Results of iGMAS BDS/GNSS Absolute Antenna Phase Center Field Calibration
The antenna phase center offset and ranging error caused by its variation can reach several cm or even dm level, which is a key error correction term that must be considered for GNSS high-precision application...
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Chapter and Conference Paper
Monitoring Station Data Quality Analysis Method
The Beidou augmentation system currently mainly provides services for stationary users and low-dynamic users. With the continuous development of autonomous driving technology, it will provide services for L4 a...
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Chapter and Conference Paper
Research on Ice-Melting Technology of Urban Rail Transit Catenary Based on Energy Cycle
When the train is running, if the catenary is heavily covered by ice, there will be arcs between the pantograph and the catenary, resulting in the train to be powered abnormally, even causing major accidents s...
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Chapter and Conference Paper
Auxiliary Inverter of Urban Rail Train—Oscillation Suppression Method of Induction Motor Load
Suppressing the induction motor load oscillation of auxiliary converter in urban rail train is very important to ensure the quality of train power supply and the operation stability. Firstly, this paper analyz...
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Chapter and Conference Paper
Study on Application of All-Parallel DN Power Supply Mode on Montanic Electrified Railway
Aiming at the characteristics of electrified railway in mountain zone, this paper proposes all-parallel DN power supply mode (all-parallel direct power supply mode with return line) to solve the power supply o...
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Chapter and Conference Paper
The Selected Harmonic Elimination PWM Strategy Based on FPGA
In the electric traction transmission system, subject to the maximum switching frequency and output voltage and current harmonic performance, a special optimized pulse width modulation strategy is generally re...
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Chapter and Conference Paper
The Research on Control Parameter of Converter in Dual-Power Electric Multiple Units
In this paper, we research the network-side converter of dual-power electric multiple units (EMU). A new model is developed based on the synchronous rotating frame PI control of the EMU converter. The control ...
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Chapter and Conference Paper
Research on High-Speed Railway Traction Power Supply System Harmonic Resonance and Its Suppression Methods
With the development toward high-speed, high-density cyberization, high-capacity of high-speed railway, harmonics amplification, and resonance problems of traction network caused by high-speed locomotives are ...
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Chapter and Conference Paper
Multi-mode Pulse Width Modulation Strategy Based on Traction Inverter Harmonic Optimization
Pulse width modulation (PWM) is one of the key control techniques of traction converter. To adapt the requirement of high-power and low-frequency feature of traction system, multi-mode PWM strategy is often us...
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Chapter and Conference Paper
The New Coordinate Strategy of Passing Phase Separations in Hybrid EMU
This paper introduces hybrid EMU and its basic configuration of power and then proposes the new coordinate strategy of passing phase separations, which is different from the traditional electric locomotive, in...
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Chapter and Conference Paper
The Research on Solution of Voltage Interruption of Network-Side Converter in Dual-Power EMU
For solving the problem of network-side voltage interruption, this paper proposes a method that can detect fastly. A method to protect the system in order to avoid the impact of the alternating current after t...
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Chapter and Conference Paper
Handwritten Numeral Recognition Using Support Vector Machine with Bias
Handwriting recognition has always been one of the most challenging tasks in the field of image processing and pattern recognition. As a new classification method based on learning, Support Vector Machine (SVM...
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Chapter and Conference Paper
Design and Implementation of High-Frequency and Single Polar Pulse Generator for High-Power Electrochemical Machining Application
By means of the clamp capacitor circuit, a kind of transformer isolated low-output voltage and high-frequency single polar pulse circuit for high-current electrochemical machining application is proposed. Oper...
