水下无人系统学报

Underwater Magnetically-Coupled Resonant Wireless Power Transfer Technology and Its Applications: A Review

WEN Hai-bing, SONG Bao-wei, ZHANG Ke-han, YAN Zheng-chao

2019, 27(4): 361-368. doi: 10.11993/j.issn.2096-3920.2019.04.001

[Abstract](864) [PDF 2147KB](598)

Abstract:
The magnetically-coupled resonant wireless power transfer(MCR-WPT) technology has the advantages, such as good insulation, simple structure, high power supply security, and convenient operation, compared with the conventional wet plug interface power supply technology, this technology has good prosp...

Review of Research Hotspots of Superspeed Undersea Vehicle Control Methods

LIU Wei, FAN Hui, LÜ Jian-guo

2019, 27(4): 369-378. doi: 10.11993/j.issn.2096-3920.2019.04.002

[Abstract](769) [PDF 619KB](530)

Abstract:
With the help of supercavitation drag-reduction technology, the speed of the superspeed undersea vehicle could reach over 200 kn, and this is difficult for conventional fully wet vehicles. In recent years, the researches on this kind of vehicles have shown a leading trend from mechanism to applicati...

Direction-of-Arrival Estimation Using Eigenvectors of Covariance Matrix of Circular Array

ZHU Shao-hao, YANG Yi-xin, WANG Yong

2019, 27(4): 379-385. doi: 10.11993/j.issn.2096-3920.2019.04.003

[Abstract](657) [PDF 652KB](407)

Abstract:
To solve the problem that the traditional high-resolution direction-of-arrival(DOA) estimation algorithms have a large amount of computation and are not robust, the eigenvectors of noise covariance matrix of a circular array in isotropic noise field are used to redefine the eigenvectors and array ma...

Characteristics of Torpedo Power System Based on Multidimensional Co-Simulation Technology

LI Xin, YANG Cheng-shi, PENG Bo

2019, 27(4): 386-391. doi: 10.11993/j.issn.2096-3920.2019.04.004

[Abstract](586) [PDF 568KB](218)

Abstract:
To obtain the mutual influence law of the torpedo power system and components with characteristics change, a zero-dimensional performance simulation model of the power system, a one-dimensional simulation model of the engine’s in-cylinder process and a three-dimensional virtual prototype model of th...

Wideband Acoustic Imaging of Underwater Target Using Spatial Time-Frequency Analysis

DU Jin-xiang, XU Heng-bo

2019, 27(4): 392-397. doi: 10.11993/j.issn.2096-3920.2019.04.005

[Abstract](400) [PDF 521KB](276)

Abstract:
Wideband acoustic imaging for moving target needs a large amount of computation because the scan is conducted in both range dimension and time scale dimension. On the other aspect, the waveforms with Doppler tolerance for underwater target detection have low resolution in time scale dimension, which...

Improved Detection Algorithm of Ship’s Shaft-Frequency Electric Field Based on Signal Features

LI Yue, ZHANG Jia-wei, CHENG Jin-fang

2019, 27(4): 398-405. doi: 10.11993/j.issn.2096-3920.2019.04.006

[Abstract](675) [PDF 731KB](422)

Abstract:
To improve the detection probability of a target and reduce the rates of false alarm and missed alarm at lower signal-to-noise ratio(SNR), the shaft-frequency electric field signals of different ships are analyzed based on the measured underwater shaft-frequency electric field data. According to the...

Single Observer Passive Localization Algorithm Based on Iterated Measurement Updating Filter

XIONG Lu, SHEN Jian, BI Xiao-wen, CHEN An-quan

2019, 27(4): 406-412. doi: 10.11993/j.issn.2096-3920.2019.04.007

[Abstract](597) [PDF 496KB](217)

Abstract:
Single observer passive localization has strong concealment performance, and can avoid the problem of data fusion and synchronization among multiple observing platforms. To address the performance degeneration of single observer passive localization affected by the factors such as measurement error ...

Simulation on Motion in Vertical Plane of a Latent Weapon Released Underwater

LIAN Yong-qing, SONG Bao-wei, LI Zong-ji

2019, 27(4): 413-419. doi: 10.11993/j.issn.2096-3920.2019.04.008

[Abstract](450) [PDF 503KB](265)

Abstract:
To study the motion law in vertical plane of a latent weapon released from submarine and the feasibility of using the separation and deceleration scheme to realize safe landing of the weapon, the motion process after release is divided into two stages: the first stage is from the latent weapon sinki...

A Method for Fast Compensating Direct Coupling Interference of Wideband Electromagnetic Fuze

TAN Si-wei, ZHAO Jun, ZHANG Meng, REN Zhi-liang

2019, 27(4): 420-427. doi: 10.11993/j.issn.2096-3920.2019.04.009

[Abstract](636) [PDF 661KB](184)

Abstract:
Wideband signal has anti-interference and counter-countermeasure properties. However, engineering application of wideband signal to torpedo electromagnetic fuze still faces many problems, including fast and efficient compensation of wideband direct coupling interference. In this paper, the character...

Test Method of Hydrodynamics in Cavitator Control Process

ZHANG Ke, LI Peng, YAN Kai, CHEN Wei-zheng, WANG Zhi, WU Wen-ting

2019, 27(4): 428-433. doi: 10.11993/j.issn.2096-3920.2019.04.010

[Abstract](562) [PDF 1057KB](203)

Abstract:
Cavitator is one of the main devices for the attitude control of a supercavitation vehicle. By precise calculation and optimization, a water tunnel test model is designed and an unsteady measurement method of hydrodynamics in the water-tunnel is proposed for the cavitator control process. The contro...

Design of a Multi-Target Interference Resistant Constant False Alarm Rate Detector for Homogeneous Reverberation Background

YIN Chao-ran, YAN Lin-jie, HAO Cheng-peng, SUN Meng-ru

2019, 27(4): 434-441. doi: 10.11993/j.issn.2096-3920.2019.04.011

[Abstract](361) [PDF 545KB](311)

Abstract:
To improve the ability of constant false alarm rate(CFAR) method against interference of multiple targets, a new CFAR detector is designed. The unbiased minimum-variance estimation(UMVE) method and the cell average(CA) method are applied to the data of left and right reference windows to obtain two ...

An Outer Field Calibration Method of IMU Gyro Constant Drift

RUAN Wei, ZHANG Qin-nan, DI Yu-ru, GUO Lin-na, WANG Li-wen

2019, 27(4): 442-445. doi: 10.11993/j.issn.2096-3920.2019.04.012

[Abstract](417) [PDF 393KB](230)

Abstract:
To solve the problem of inertial measuring unit(IMU) gyro constant drift in outer field calibration, a three-position outer field calibration method of IMU gyro constant drift is proposed. Under the static pedestal condition, the attitude angles of the product are measured by the secondary alignment...

Shooting Method of Rocket-Assisted Torpedo Based on Target Board Judgment

ZHAO Ai-qi, WANG Ge, SUN Jian, GAO Tian, JIANG Li-wei

2019, 27(4): 446-451. doi: 10.11993/j.issn.2096-3920.2019.04.013

[Abstract](625) [PDF 510KB](261)

Abstract:
Based on the characteristics analysis of the anti-submarine operation and underwater trajectory of rocket-assisted torpedo, the conventional method for shooting target’s present position is improved and optimized. The judgment of the target board is used to determine the underwater search mode of th...

Design and Implementation of a Path Tracking System for Fully Actuated AUV

YAO Jin-yi, ZENG Qing-jun, ZHOU Qi-run, ZHU Zhi-yu, BAO Ling-hui

2019, 27(4): 452-458. doi: 10.11993/j.issn.2096-3920.2019.04.014

[Abstract](693) [PDF 2264KB](291)

Abstract:
Aiming at the application requirements for such as recovery, underwater search and rescue, and so on, a path tracking control system for fully actuated autonomous undersea vehicle(AUV) is proposed based on global positioning system(GPS), Doppler velocity log(DVL), optical fiber inertial navigation, ...

Simulation of Torpedo Air Trajectory Based on Dual-Euler Method

REN Bin, WEN Zhi-wen, YANG Zhi-dong

2019, 27(4): 459-462. doi: 10.11993/j.issn.2096-3920.2019.04.015

[Abstract](708) [PDF 407KB](297)

Abstract:
Due to its advantages of obtaining torpedo’s attitude angle and position intuitively, Euler angle representation has been extensively applied to solve the differential equation of torpedo’s six-DOF motion. However, for the torpedo air trajectory, this representation will produce singular points at t...

A Safety Strategy Design Method of Autonomous Navigation for Long-Range Delivered Undersea Vehicle

LI Jie, MA Xu-kun

2019, 27(4): 463-468. doi: 10.11993/j.issn.2096-3920.2019.04.016

[Abstract](417) [PDF 456KB](215)

Abstract:
For delivering undersea vehicle in a long range, it is extremely necessary and urgent to research the safety strategy design method of autonomous navigation. The design methods in current researches cannot meet the requirements for autonomous navigation of long-range delivering undersea vehicle with...

Testing Scheme Design on Capability of Hovering Depth Charge Weapon System to Intercept Torpedo

HOU Bao-e, TIAN Heng-dou, LI Bing, FENG Peng-fei

2019, 27(4): 469-472. doi: 10.11993/j.issn.2096-3920.2019.04.017

[Abstract](531) [PDF 318KB](245)

Abstract:
For the assessment requirements of capability of hovering depth charge weapon system to intercept torpedo, a testing mode combining actual weapon launch with simulated launch is proposed. On the basis of the design idea of test route, specific testing methods are offered, including the method for de...

2019 Vol. 27, No. 4

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