水下无人系统学报

Application of Dual-Euler Control Method to Water-Trajectory Design of Missile Carrier

WANG Ya-dong, YUAN Xu-long, ZHANG Yu-wen

2013, 21(6): 401-405. doi: 10.11993/j.issn.1673-1948.2013.06.001

[Abstract](903) [PDF 334KB](28)

Abstract:
When a sub-launching missile carrier takes horizontal launch and vertical water-exit, the traditional water trajectory control system fails to work normally due to the singularity of Euler angles. In this paper, two Euler angle systems with their own singularity features are adopted to design a new ...

Analysis on Motion Stability of High Speed Underwater Vehicle in Longitudinal Plane

ZOU Qi-ming, WANG Gai-di

2013, 21(6): 406-409. doi: 10.11993/j.issn.1673-1948.2013.06.002

[Abstract](1170) [PDF 1200KB](470)

Abstract:
In order to study cavitation drag reduction of a high speed underwater vehicle, we establish a longitudinal motion model of the vehicle in supercavitation condition, analyze the step responses of attack angle and pitch angular velocity of the vehicle under turbulence in the balance state of cruise p...

Multistate Reliability Growth Analysis Method for Torpedo

LIAO Fu-kui, ZHOU Chun-ming, ZHAO Min

2013, 21(6): 410-413. doi: 10.11993/j.issn.1673-1948.2013.06.003

[Abstract](868) [PDF 1108KB](376)

Abstract:
This paper proposed a multistate reliability growth analysis method for a torpedo to identify and resolve prob-lems existing in the development process of a torpedo. In this method, the failure number is replaced by accumulation failure degree, and the method is presented based on the 0-1 type AMSAA...

Tracing and Laser Detecting Ship Wake Based on Depolarization Effect

TIAN Jing, CHEN Hang, WANG Pei-nan

2013, 21(6): 414-417. doi: 10.11993/j.issn.1673-1948.2013.06.004

[Abstract](1308) [PDF 1095KB](452)

Abstract:
The purpose of this paper is to find a method for accurately detecting and tracing ship wake by making use of the difference of depolarization states due to laser scattering of bubbles with different scale and seawater. Imitating acoustic wake guidance mode, ship wake edge region is recognized throu...

Applications of Time-frequency Analysis and Curve Fitting to Fuze Signal Detection

SHI Xiao-hai, CHEN Bin-qiang, BAI Zhi-ke, XIAO Su-juan, ZHANG Zhou-suo

2013, 21(6): 418-421. doi: 10.11993/j.issn.1673-1948.2013.06.005

[Abstract](1186) [PDF 1120KB](497)

Abstract:
A method for extracting effective information in the echo signal based on the short-time Fourier transform and the theory of curve fitting for estimation is put forward in order to realize the fuze burst point selection and control and to improve the performance of fuze warhead coordination. The met...

Combined Disposition Mode of Receiver-Transceiver Antenna for Electromagnetic Fuse

WANG Wei, ZHU Jian

2013, 21(6): 422-424. doi: 10.11993/j.issn.1673-1948.2013.06.006

[Abstract](1367) [PDF 930KB](371)

Abstract:
To obtain a torpedo electromagnetic fuse with axial directivity along torpedo′s longitudinal axes, we analyze the combined disposition mode of receiver-transceiver antenna with vertical transmission, calculate the radiant electro-magnetic field and the reflect electromagnetic field by a simplified m...

Multi-target Tracking Method of Torpedo in the Environment of Soft Kill Weapons

LIU Jian-xin, CHENG Yong-mei, YU Liang, CHEN Ke-zhe

2013, 21(6): 425-430. doi: 10.11993/j.issn.1673-1948.2013.06.007

[Abstract](976) [PDF 1701KB](448)

Abstract:
Target tracking error and target tracking loss exist during multi-target tracking process of a torpedo in complex environment of acoustic countermeasure. We analyze the countermeasure approach of underwater soft kill weapons, and present an integrated multi-target tracking method of a torpedo, in te...

Multi-AUV Leader-Follower Formation Control in Obstacle Environment

CHEN Wei, YAN Wei-sheng, CUI Rong-xin

2013, 21(6): 431-435. doi: 10.11993/j.issn.1673-1948.2013.06.008

[Abstract](1183) [PDF 1016KB](424)

Abstract:
When obstacles exist in the environment, the follower in a leader-follower formation may collide with the obstacles. To solve this problem, we put forward a multi-AUV leader-follower formation control method for obstacles environment to avoid obstacle by changing multi-AUV formation target, and esta...

A Consensus Data Fusion Algorithm for Dynamic Multi-sensors

LIU Yang, JIANG Li-Ping

2013, 21(6): 436-439. doi: 10.11993/j.issn.1673-1948.2013.06.009

[Abstract](770) [PDF 1060KB](528)

Abstract:
Existing consensus fusion algorithms can not accurately measure the consensus and reliability of sensor in state estimation of time-varying system, and ‘data saturation’ and ‘waste of history information’ exist in measurement of sensor′s consensus mean value and reliability. In this paper, the calcu...

Design of Ship Course Controller Based on Digital Redesign Method

XU Fei, LIU Ming-yong

2013, 21(6): 440-444. doi: 10.11993/j.issn.1673-1948.2013.06.010

[Abstract](697) [PDF 1181KB](310)

Abstract:
The ship course motion system has typical nonlinearity and uncertainty, and it is sensitive to wind, wave and current interferences. Considering the manipulation features of ship course, this paper presents the description of the nonlinear system model, deduces a discretization model based on Takaig...

The New Type of Dual-rotor Permanent Magnet Motor for Underwater Propulsion: a Review

ZHANG Lin-sen, XU Hai-zhu, WANG Song-lin, ZHANG Jiang-ping

2013, 21(6): 445-449. doi: 10.11993/j.issn.1673-1948.2013.06.011

[Abstract](1540) [PDF 1730KB](712)

Abstract:
To further improve efficiency and power density of propulsion motor, a new type of permanent magnet (PM) motor with a stator in center and double contra-rotating rotors at both sides is introduced. The origin and evolvement of the new dual-rotor PM motor are described in detail, its key characterist...

Inconsistency Analysis of Vibration Measuring Results for a Power System

SUN Tao, WANG Jin-Zhong, LI Liu-cheng, WANG Yong

2013, 21(6): 450-453. doi: 10.11993/j.issn.1673-1948.2013.06.012

[Abstract](1488) [PDF 1333KB](466)

Abstract:
Two vibration measuring systems attached to a power test stand have output inconsistent measuring results for a long time, so the exchange and the one-third octave analysis method are employed to investigate the inconsistency. Accordingly, countermeasures are offered against the inconsistency by eli...

Modeling Method of Target Echo in Underwater Near Field Based on Highlight Zones-Hightlights Model

GUAN Zhen-yu, LI Jie, NIU San-ku

2013, 21(6): 454-459. doi: 10.11993/j.issn.1673-1948.2013.06.013

[Abstract](816) [PDF 1557KB](344)

Abstract:
To meet the demand for target characteristics modeling of acoustic detection system for underwater weapon in near field, we propose a modeling method of target echo in underwater near field based on the highlight zones-highlights model. Firstly, the target is divided into a series of surface element...

Design of Measuring System of Magnetic Field with Full Information

ZONG Fang-yong, WU Zhi-dong

2013, 21(6): 460-463. doi: 10.11993/j.issn.1673-1948.2013.06.014

[Abstract](1133) [PDF 1214KB](460)

Abstract:
A measuring system of magnetic field with full information is designed based on the magnetoresistive mag-netometers of HMC1001 & HMC1002 type. It is adapted to the ocean test environment. The design project and imple-mentation are offered. Signals from magnetic sensors′s three components and fro...

A Shift Point Shooting Method of Anti-submarine Torpedo Against Maneuverable Target

JIANG Tao, RUI Li

2013, 21(6): 464-468. doi: 10.11993/j.issn.1673-1948.2013.06.015

[Abstract](1357) [PDF 1359KB](409)

Abstract:
A shift point shooting method of an anti-submarine torpedo is proposed to effectively attack a maneuverable submarine, i.e., when an anti-submarine torpedo is launched to imaginary point, the point has shifted certain range and angle relative to the expected hit point. Accordingly, mathematical mode...

Performance Simulation of Rocket-Assisted Anti-Torpedo Torpedo

WANG Guang-yu, PENG Pei

2013, 21(6): 469-473. doi: 10.11993/j.issn.1673-1948.2013.06.016

[Abstract](770) [PDF 1364KB](518)

Abstract:
Some models of typical operations of a rocket-assisted anti-torpedo torpedo(RATT) are established to simu-late the intercept trajectory of a RATT. Simulation results show that the speed and range impose significant influences on the interception probability of a RATT, and the RATT can gain higher in...

Design of Dynamic Management Database for Spare Parts of Torpedo

WANG Lan, YANG Jin-hou, DENG Li-tao

2013, 21(6): 474-478. doi: 10.11993/j.issn.1673-1948.2013.06.017

[Abstract](1268) [PDF 1464KB](391)

Abstract:
Database technology is applied to the torpedo weapon equipment maintenance support system considering the features of use, management and maintenance of torpedo spare parts during customer′s maintenance support process after delivery. Taking informatization of torpedo spare parts and visual manageme...

2013 Vol. 21, No. 6

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