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公开(公告)号：KR101259561B1
公开(公告)日：2013-04-30
申请号：KR1020110067393
申请日：2011-07-07
Applicant: 목포대학교산학협력단
IPC: H04L27/26
Abstract: 본 발명은 TR-MUSIC 기반의 주파수 옵셋 추정 방법에 대하여 개시한다. 본 발명의 일면에 따른 TR-MUSIC 기반의 주파수 옵셋 추정 방법은, EEP 처리된 수신신호를 자기상관한 다음, TR-MUSIC 기법을 적용한 결과신호에 대칭되는 자기상관 행렬을 산출하는 단계; 상기 자기상관 행렬에 고유분해를 적용하여 신호 부분공간과 잡음 부분공간으로 분할하는 단계; 및 상기 신호 부분공간 및 상기 잡음 부분공간을 곱하여 산출된 주파수 스펙트럼에서 크기가 가장 큰 주파수를 주파수 옵셋으로 추정하는 단계를 포함하는 것을 특징으로 한다.
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82.发明公开
公开(公告)号：KR1020130039907A
公开(公告)日：2013-04-23
申请号：KR1020110104567
申请日：2011-10-13
Applicant: 목포대학교산학협력단
CPC classification number: H04W28/24 , H04L2012/6448 , H04W84/12 , H04W84/18
Abstract: PURPOSE: A method for communication by using a relay communication protocol for improving QoS performance in a WiMedia Distributed MAC communication system is provided to reserve another indirect link via a relay node besides a direct link in order to maintain QoS resources reserved in a collision target device. CONSTITUTION: A relay request reservation state code is transmitted between two nodes so that a reservation owner node requests a reservation to a relay node. The relay request reservation state code indirectly notifies that there is a DRP reservation request between the relay node and the reservation owner node to a reservation target node. A relay notification reservation state code is used for notifying that data is transmitted to the reservation target node through the relay node. [Reference numerals] (AA) Value; (BB) Code; (CC) Meaning; (DD) Requesting relay transmission to a relay node; (EE) Notifying that data is transmitted to a target node through a relay node; (FF) Accepted DRP resource reservation request for the corresponding relay transmission;
Abstract translation: 目的：提供一种通过使用中继通信协议进行通信的方法，用于提高WiMedia分布式MAC通信系统中的QoS性能，以通过除了直接链路之外的中继节点预留另一间接链路，以便保留在冲突目标设备中保留的QoS资源 。 构成：在两个节点之间传送中继请求预留状态码，使得预约所有者节点向中继节点请求预约。 中继请求预约状态码间接地通知在中继节点和预留所有者节点之间存在预留目标节点的DRP预留请求。 中继通知预约状态码用于通过中继节点通知数据被发送到预约目标节点。 （附图标记）（AA）值; （BB）代码; （CC）含义; （DD）向中继节点请求中继传输; （EE）通过中继节点通知数据发送到目标节点; （FF）接收对应继电器传输的DRP资源预留请求;
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公开(公告)号：KR1020130037048A
公开(公告)日：2013-04-15
申请号：KR1020110101368
申请日：2011-10-05
Applicant: 목포대학교산학협력단
CPC classification number: H04W36/023 , H04L29/06 , H04W36/08 , H04W36/32 , H04W84/12
Abstract: PURPOSE: A PFMIPv6 for the high speed handover of ship communication and an effective interworking method of a WLAN(Wireless Local Area Network) are provided to rapidly execute handover by utilizing a probe request message as a handover trigger and transceiving information which is necessary for handover. CONSTITUTION: An MN(Mobile Node) transmits a probe request message for searching neighbor APs(Access Point), and a pMAG(previous Mobile Access Gateway) executes buffering for preventing the packet loss of the MN. The pMAG broadcasts an MN-ID, HNP(Home Network Prefix), and LMAA information to neighbor MAG(Mobile Access Gateway). A new MAG stores the broadcasted information in a BUL(Binding Update List).
Abstract translation: 目的：提供用于船舶通信高速切换的PFMIPv6和WLAN（无线局域网）的有效互通方法，通过利用探测请求消息作为切换触发和切换所需的收发信息来快速执行切换 。 构成：MN（移动节点）发送用于搜索邻居AP（接入点）的探测请求消息，并且pMAG（先前的移动接入网关）执行缓冲以防止MN的分组丢失。 pMAG向邻居MAG（移动接入网关）广播MN-ID，HNP（家庭网络前缀）和LMAA信息。 新的MAG将广播的信息存储在BUL（绑定更新列表）中。
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公开(公告)号：KR1020130034915A
公开(公告)日：2013-04-08
申请号：KR1020110099080
申请日：2011-09-29
Applicant: 목포대학교산학협력단
Abstract: PURPOSE: A method for efficiently reinforcing a voice signal based on a voice coding parameter in marine voice communications is provided to reinforce excitation signals among a bitstream parameter based on a voice encoding device in root environment, thereby supplying excellent performance. CONSTITUTION: An excitation signal gain ratio estimation unit(140) estimates an excitation signal gain ratio by using an excitation signal gain of background noises estimated by an excitation signal gain estimation block(130), and a decoding result which applies a fixed codebook gain by a fixed codebook vector decoding block(120). An excitation signal generation unit(150) generates an excitation signal by using a decoding result which applies an adaptive codebook gain by an excitation signal gain ratio estimation result and an adaptive codebook vector decoding block(110). [Reference numerals] (110,120) Adaptive codebook vector decoding; (130) Excitation signal gain estimation of background noise; (140) Excitation signal gain ratio estimation; (150) Excitation signal generation; (160) Linear prediction synthesis filter; (170) Postprocessor; (AA,BB) Input bit stream; (CC) Adaptive codebook gain application; (DD) Fixed codebook gain application; (EE) Enhanced voice signal; (FF) Near-end background noise estimation;
Abstract translation: 目的：提供一种在海洋语音通信中基于语音编码参数有效加强语音信号的方法，以加强基于根环境中的语音编码装置的比特流参数中的激励信号，从而提供出色的性能。 激励信号增益比估计单元（140）通过使用由激励信号增益估计块（130）估计的背景噪声的激励信号增益来估计激励信号增益比，以及解码结果，其通过 固定码本向量解码块（120）。 励磁信号生成单元（150）通过使用通过激励信号增益比估计结果应用自适应码本增益的解码结果和自适应码本矢量解码块（110）来产生激励信号。 （110,120）自适应码本矢量解码; （130）背景噪声的激励信号增益估计; （140）励磁信号增益比估计; （150）励磁信号发生; （160）线性预测合成滤波器; （170）后处理; （AA，BB）输入位流; （CC）自适应码本增益应用; （DD）固定码本增益申请; （EE）增强语音信号; （FF）近端背景噪声估计;
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公开(公告)号：KR1020130022796A
公开(公告)日：2013-03-07
申请号：KR1020110085710
申请日：2011-08-26
Applicant: 목포대학교산학협력단
CPC classification number: H04L1/1812 , H04L1/06
Abstract: PURPOSE: A method is provided to remarkably improve communication performance in a poor wireless channel environment by resolving size and cost of a MIMO system. CONSTITUTION: A method selects a hybrid-ARQ type using a cross-layer coding technique based on importance of a channel environment, BER and throughput when transmitting data in collaboration with a base station(BS), a relay station(RS) and a destination station(DS). At this time, the method includes a stage of judging availability of the channel environment based on effect of Rayleigh fading independently varying with a symbol period and path loss according to a distance.
Abstract translation: 目的：提供一种通过解决MIMO系统的尺寸和成本，在恶劣的无线信道环境中显着提高通信性能的方法。 构成：当与基站（BS），中继站（RS）和目的地（RS）协作发送数据时，一种方法使用基于信道环境的重要性，BER和吞吐量的跨层编码技术来选择混合ARQ类型 站（DS）。 此时，该方法包括基于根据距离独立地随符号周期和路径损耗而变化的瑞利衰落的影响来判断信道环境的可用性的阶段。
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Patent Agency Ranking
公开(公告)号：KR1020130021971A
公开(公告)日：2013-03-06
申请号：KR1020110084578
申请日：2011-08-24
Applicant: 목포대학교산학협력단
Abstract: PURPOSE: An E-navigation system for communications between vessels or a vessel and a land is provided to convert communication methods according to sailing regions of the vessel based on GPS location information received for the communication between vessels or a vessel and a land. CONSTITUTION: A location detection part(120) detects the location information of a vessel based on a signal received from a GPS satellite(200). A control part(130) determines whether the vessel is located at a shore or deep sea. A communication interface part(140) selects one communication method. The communication interface part sets the selected communication method to the communication method of the vessel. [Reference numerals] (110) GPS receiver; (120) Location detection part; (130) Control part; (140) Communication interface part; (150) Communication part; (200) GPS satellite
Abstract translation: 目的：提供用于船只或船只和陆地之间通信的电子导航系统，根据船只或船只与陆地之间的通信接收的GPS位置信息，根据船舶航行区域转换通信方式。 构成：基于从GPS卫星（200）接收到的信号，位置检测部（120）检测船舶的位置信息。 控制部分（130）确定船舶是位于岸边还是深海。 通信接口部分（140）选择一种通信方法。 通信接口部分将所选择的通信方法设置为该船的通信方法。 （附图标记）（110）GPS接收机; （120）位置检测部; （130）控制部分; （140）通讯接口部分; （150）通讯部分; （200）GPS卫星
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公开(公告)号：KR1020130020268A
公开(公告)日：2013-02-27
申请号：KR1020110082791
申请日：2011-08-19
Applicant: 목포대학교산학협력단
CPC classification number: Y02E10/20 , Y02E10/38 , F03B13/22 , F03B13/16 , F05B2260/42
Abstract: PURPOSE: A low power wave self generator and a charging device utilizing a low power wave self generator is provided to supply power to a low power device with self generation power supply. CONSTITUTION: A charging device utilizing a low power wave self generator comprises a low power wave self generator and a charging unit(700). The low power wave self generator comprises a single propeller(200), a first and a second power generating motors(500,600), and a first and a second accelerator gear boxes(300). The single propeller is fixed in a propeller fixing frame(100). The first and the second generating motor generates forward and reverse AC power source through left and right rotation. The first and the second accelerator gear boxes are connected to a shaft of the single propeller and drive the first and the second generating motor with left and right rotation accelerated by the vertical movement of the single propeller according to the vertical movement of wave. The charging unit comprises a first charging circuit(710), a second charging circuit(720), and a charging battery(730). The first charging circuit stabilizes and amplifies AC power supply parallel generated from the first and the second power generating motor. The second charging circuit converts AC which is stabilized and is amplified by the first charging circuit into DC and charges a rechargeable battery. [Reference numerals] (710) First charging circuit(power amplification/stabilization); (720) Second charging circuit(charging in a rechargeable battery); (730) Rechargeable battery; (800) Self-generation source
Abstract translation: 目的：提供低功率波自发电机和利用低功率波自发电机的充电装置，用于向具有自发电源的低功率装置供电。 构成：利用低功率波自发电机的充电装置包括低功率波自发电机和充电单元（700）。 低功率波自发电机包括单个螺旋桨（200），第一和第二发电电动机（500,600）以及第一和第二加速器齿轮箱（300）。 单螺旋桨固定在螺旋桨固定架（100）中。 第一和第二发电电动机通过左右旋转产生正向和反向交流电源。 第一和第二加速器齿轮箱连接到单个螺旋桨的轴，并且驱动第一和第二发电马达，左右旋转通过单个螺旋桨的垂直运动加速，根据波浪的垂直运动。 充电单元包括第一充电电路（710），第二充电电路（720）和充电电池（730）。 第一充电电路稳定和放大从第一和第二发电电动机并联产生的交流电源。 第二充电电路将稳定的并被第一充电电路放大的AC转换为DC并对可充电电池充电。 （附图标记）（710）第一充电电路（功率放大/稳定）; （720）第二充电电路（在可充电电池中充电）; （730）充电电池; （800）自发源
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公开(公告)号：KR1020130014701A
公开(公告)日：2013-02-08
申请号：KR1020110074213
申请日：2011-07-26
Applicant: 목포대학교산학협력단
Abstract: PURPOSE: A method for minimizing the malfunction of an EPIRB(Emergency Position Indicating Radio Beacon) with an enhanced seawater sensing method is provided to launch distress alarms by forming conductivity when four contact points have the same resistance in the automatic mode of the EPIRB. CONSTITUTION: A method for minimizing the malfunction of an EPIRB with an enhanced seawater sensing method is as follows: Seawater resistance values are measured by a Kelvin double bridge circuit. According to the variation of the measured seawater resistance values, an EPIRB is separated from an automatic release device only in a completely submerged state. [Reference numerals] (AA) Start; (BB) Initialization; (CC,EE,KK,OO) No; (DD,GG,LL,QQ) Yes; (FF) Automatic status checking?; (HH) Detecting 0[V](ADC); (II,NN) Reading conversion results; (JJ) Bridge circuit "0"[V]?; (MM) Double bridge(ADC); (PP) Seawater resistance values?; (RR) Emitting a distress signal
Abstract translation: 目的：提供一种利用增强型海水感测方法最小化EPIRB（紧急位置指示无线电信标）的故障的方法，通过在EPIRB的自动模式下四个接触点具有相同的阻力时，通过形成电导率来发射遇险报警。 构成：使用增强型海水感测方法最小化EPIRB故障的方法如下：海水电阻值由开尔文双桥电路测量。 根据测量的海水电阻值的变化，EPIRB仅在完全浸没状态下与自动释放装置分离。 （附图标记）（AA）开始; （BB）初始化; （CC，EE，KK，OO）否; （DD，GG，LL，QQ）是的; （FF）自动状态检查？ （HH）检测0 [V]（ADC）; （II，NN）阅读转换结果; （JJ）桥接电路“0”[V] （MM）双桥（ADC）; （PP）海水电阻值？ （RR）发出遇险信号
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公开(公告)号：KR1020120138129A
公开(公告)日：2012-12-24
申请号：KR1020110057454
申请日：2011-06-14
Applicant: 목포대학교산학협력단
Abstract: PURPOSE: A message transmission method of an AtoN AIS(aids to navigation automatic identification system) is provided to fully analyze many information necessary for management items of unattended facilities and navigation safety by providing AtoN AIS marine environment, ship integrated monitoring and navigation safety information. CONSTITUTION: The setting of an AtoN AIS is changed by a communication protocol. One selected from a transmission mode, message transmission cycle and transmission slot of the AtoN AIS. When a buoy setting the marine location of the AtoN AIS is out of a location, an alarm message is generated. An identification code of the AtoN AIS is set up or changed. The location of the AtoN AIS on an electronic chart is set up. The type of a transmission and reception channel and the AtoN AIS are changed. [Reference numerals] (AA) AtoN AIS state window; (BB) Message reception window; (CC) Analog port check; (DD) Power save mode; (EE) Transmission message display window; (FF) Decoding completion data reception window; (GG) Communication port set up
Abstract translation: 目的：提供AtoN AIS（辅助导航自动识别系统）的消息传输方法，通过提供AtoN AIS海洋环境，船舶综合监控和导航安全信息，全面分析无人值守设施和导航安全管理项目所需的许多信息。 构成：通过通信协议改变AtoN AIS的设置。 从AtoN AIS的传输模式，消息传输周期和传输时隙中选择一个。 当设置AtoN AIS的海上位置的浮标不在位置时，会产生报警信息。 AtoN AIS的识别码设置或更改。 AtoN AIS在电子海图上的位置已建立。 发送和接收通道和AtoN AIS的类型发生变化。 （AA）AtoN AIS状态窗口; （BB）消息接收窗口; （CC）模拟端口检查; （DD）省电模式; （EE）传输消息显示窗口; （FF）解码完成数据接收窗口; （GG）通信端口设置
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公开(公告)号：KR1020120136568A
公开(公告)日：2012-12-20
申请号：KR1020110055574
申请日：2011-06-09
Applicant: 목포대학교산학협력단
Abstract: PURPOSE: A red tide image recognition method using meaning characteristic is provided to construct a recognition candidate image group by creating a learning image as an meaning feature image based on NMF(non-negative matrix factorization). CONSTITUTION: A learning red tide image is normalized and is constructed as an image vector group. A meaning characteristic is extracted through an NMF for a processed red tide image(210). A candidate red tide image group is constructed by referring to the meaning characteristic by inputting a red tide image which is recognized by the candidate red tide image group(220). The red tide image is recognized in the candidate red tide image group. The roundness of the inputted red tide image and a learning original image is calculated(310). Proximity images are selected in the roundness. An image which is similar with entropy is recognized as the red tide image by calculating the entropy of the image(320). [Reference numerals] (100) Pre-processing; (200) Searching candidate red tide image; (210) Non-negative matrix factorization; (220) Group of recognition of candidate red tide image; (300) Recognition of red tide image; (310) Calculating roundness; (320) Calculating entropy; (AA,BB) Learning image; (CC) Meaning characteristics
Abstract translation: 目的：提供一种使用意义特征的红潮图像识别方法，通过创建基于NMF（非负矩阵因式分解）的学习图像作为意义特征图像来构建识别候选图像组。 构成：学习红潮图像被归一化，构成为图像矢量组。 通过用于处理的红潮图像（210）的NMF提取意义特征。 通过输入由候选红潮图像组（220）识别的红潮图像，参考含义特征构建候选红潮图像组。 红潮图像在候选红潮图像组中被识别。 计算输入的红潮图像的圆度和学习原始图像（310）。 在圆度中选择接近图像。 通过计算图像的熵，将与熵相似的图像识别为红潮图像（320）。 （附图标记）（100）预处理; （200）搜索候选红潮图像; （210）非负矩阵分解; （220）候选红潮图像识别组; （300）识别红潮图像; （310）计算圆度; （320）计算熵; （AA，BB）学习形象; （CC）含义特征
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