22 Result(s)
within
Zengjun **
Engineering
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Article
Safety Evaluation of 5G Antenna Mounted on Power Transmission Towers Using a New Mounting Device Under Environmental Loads
Mounting 5G antennas on existing power transmission towers can meet the needs of both power supply and 5G communication. Current mounting techniques have the problems of cumbersome process and slow efficiency....
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Chapter and Conference Paper
Acquisition Algorithm Optimization Based on Amount of Computation and Performance Joint
Signal acquisition is the prerequisite for the receiver’s work. The current optimization of the signal acquisition algorithm is mainly focused on the improvement of the acquisition performance, and the optimiz...
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Chapter and Conference Paper
Evaluation and Analysis of Anti-jamming Performance of Navigation Signal in Satellite Retransmission Channel
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Chapter and Conference Paper
Interference Mitigation Based on Polarized Pattern Constrained Minimum Variance (PCMV) Using Dual-Polarized Array
The signals of Global navigation satellite system (GNSS) are susceptible to wideband RF interference. Polarized Pattern Constrained Minimum Variance algorithm (PCMV) is proposed to mitigate the interference an...
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Chapter and Conference Paper
DPCCRW: An Unambiguous Acquisition Technique for High-Order Binary Offset Carrier Modulated Signal
Binary offset carrier (BOC) modulation has been widely adopted in modern global navigation satellite system (GNSS) not only for its characteristic of spectrum-split, but also for its high measuring precision a...
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Chapter and Conference Paper
Carrier Phase Multipath Error Elimination Method for GNSS Signals Based on an APCRW Correlator
Carrier phase multipath effects are sources of error for high-precision applications of Global Navigation Satellite Systems (GNSS). In this work, we propose a correlator based on the Auxiliary Punctual Code Re...
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Chapter and Conference Paper
Data Mining Based on Condensed Hierarchical Clustering Algorithm
Clustering is an important part of data mining, which aims to divide unknown sample data into multiple classes according to similarity relationship. According to the characteristics of multi-subject high-dimen...
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Chapter and Conference Paper
A Repeater Spoofing Detection Method Based on In-Phase Correlation Values
GNSS (Global Navigation Satellite System) spoofing has a great impact on the receiver getting trusted position, navigation and timing information, letting the receiver output erroneous information without any ...
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Chapter and Conference Paper
On Academic Evaluation Index System of Weaponry Subject
Academic evaluation is one of the important steps in the weaponry subject conduct in the force professional academies, and it is one of the important means to test the level and quality of study of cadets. The...
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Chapter and Conference Paper
Error Compensation Algorithm for Dynamic Model Based on Neural Network
The noise of GNSS navigation and positioning system is non-priori, while the optimal estimation of standard Kalman filter requires the establishment of accurate system model and observation model, which leads ...
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Chapter and Conference Paper
Research on Robust Timing Receiver with Joint Verification of Location and Clock Offset
GNSS timing receiver is widely used in various fields. Unfortunately, it has weak capability of anti-jamming and anti-spoofing, so an integrated processing technique based on joint verification of location and...
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Chapter and Conference Paper
SBAS Integrity Verification Based on the Extreme Value Theory
In many areas such as safety of life application, the integrity of the navigation system is a very important indicator to indicate the trustworthiness of the system services. According to different scenarios, ...
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Article
An improved rotation scheme for Tri-axis rotational inertial navigation system
Rotating modulation technique is a mature method which has been widely used in the rotational inertial navigation system (RINS). A proper rotation scheme can greatly improve the position accuracy of the system...
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Article
Calibration and data processing technology of gyroscope in dual axis rotational inertial navigation system
Rotational inertial navigation system, which can achieve high accuracy without the use of expensive inertial sensors, has drawn extensive attention in recent years. However, the introduction of the rotation ma...
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Chapter and Conference Paper
Optimal Carrier Tracking PLL in the Presence of Phase Noise in GNSS Receiver
Carrier tracking phase lock loop (PLL) applied extensively in GNSS receivers and high-precision time transfer systems. The PLL is one of the important structures for carrier phase tracking in receivers. Genera...
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Chapter and Conference Paper
Research and Application on Enhanced Reception Techniques Based on Distributed Antennas in Ground Station
In order to enhance navigation warfare capabilities of ground station, miniaturization and motorization is a trend. However, the demand of antenna aperture for downlink signal processing is diversity. Then con...
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Chapter and Conference Paper
On Usability Evaluation of Human–Machine Interactive Interface Based on Eye Movement
There is not a thorough integrated index system and evaluation criterion for evaluating the interface ergonomics of equipment display; thus, we put forward an evaluation method based on eye movement evaluation...
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Article
Process optimization for design of duplex universal joint fork using unequal thickness flash
To avoid defect formation, a two-step forging process for duplex fork was developed and optimized using an unequal thickness flash. The large cross-sectional difference between the different parts of the compl...
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Chapter and Conference Paper
On the Eye Movement Technique-Based HMI Work Efficiency Evaluation System
HMI is the interaction window between the equipment and the operator. It realizes the transformation of the equipment information from the internal to that can be accepted by the operator. It is a very importa...
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Chapter and Conference Paper
Research on Design of the Battlefield Soldier Physiological Status Monitoring and Analysis System
After investigating the development of the physiological status monitor technology in China and abroad, the author studied the physiological status monitor technology for soldiers in the battlefield. According...
