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公开(公告)号：KR101452939B1
公开(公告)日：2014-10-23
申请号：KR1020120110299
申请日：2012-10-04
Applicant: 목포대학교산학협력단
Abstract: 본 발명은, 주파수 선택적 페이딩 채널에서 동작하는 양방향 릴레이 시스템에서 채널을 추정하는 방법에 관한 것으로서, 최적 조건을 만족하는 훈련 수열을 사용함으로써 최대대비평균전력비를 최소로 하며 전력 증폭기에서의 왜곡을 최소화하는 채널 추정 기법을 제공한다.
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公开(公告)号：KR1020130043964A
公开(公告)日：2013-05-02
申请号：KR1020110108177
申请日：2011-10-21
Applicant: 목포대학교산학협력단
IPC: H03M13/15
CPC classification number: H03M13/152 , H03M13/1525 , H03M13/6522
Abstract: PURPOSE: A low computational amount soft-decision e-BCH decoding algorithm method for a next generation DVB-RCS system is provided to reduce computational amount by using distance difference between received data and the number of decoded test pattern, a scaling value and reliability. CONSTITUTION: A test pattern is generated through data of which reliability is below a predetermined reference value of the received data and the test pattern is arranged. e-BCH decoding is performed as many as the number of arranged test patterns. A received bit is searched using the received data and the decoded bit.
Abstract translation: 目的：提供一种用于下一代DVB-RCS系统的低计算量软判决e-BCH解码算法方法，通过使用接收数据与解码测试模式数量，缩放值和可靠性之间的距离差来减少计算量。 构成：通过可靠性低于接收数据的预定参考值的数据生成测试图案，并且布置测试图案。 执行e-BCH解码与排列的测试图案的数量一样多。 使用接收到的数据和解码的比特来搜索所接收的比特。
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公开(公告)号：KR1020130005781A
公开(公告)日：2013-01-16
申请号：KR1020110067393
申请日：2011-07-07
Applicant: 목포대학교산학협력단
IPC: H04L27/26
CPC classification number: H04L27/266
Abstract: PURPOSE: A frequency offset estimating method of TR-MUSIC base is provided to prevent performance degradation due to frequency offset estimation considering the changed noise form according to perform EEP in a received signal. CONSTITUTION: An autocorrelation process of EEP(Envelop Equalized Processing) treated received signal is performed. An autocorrelation matrix corresponding to a result signal applying TR-MUSIC(Trimmed Multiple Signal Classification) technique is generated. A signal partial space and a noise partial space are formed by applying decomposition in the autocorrelation matrix. The largest size of frequency is estimated as a frequency offset among a generated frequency spectrum by multiplying signal partial space and noise partial space is estimated.
Abstract translation: 目的：提供TR-MUSIC基站的频率偏移估计方法，以根据接收到的信号中的EEP来实现考虑到改变的噪声形式的频偏估计的性能下降。 构成：执行EEP（Envelop Equalized Processing）处理的接收信号的自相关过程。 生成对应于应用TR-MUSIC（Trimmed Multiple Signal Classification）的结果信号的自相关矩阵。 通过在自相关矩阵中应用分解形成信号部分空间和噪声部分空间。 估计最大频率的频率是通过乘以信号部分空间和噪声部分空间产生的频谱之间的频率偏移。
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公开(公告)号：KR1020130044043A
公开(公告)日：2013-05-02
申请号：KR1020110108299
申请日：2011-10-21
Applicant: 목포대학교산학협력단
IPC: H04B1/7183
CPC classification number: H04B1/7183 , H04B1/7085
Abstract: PURPOSE: A method for tracing a UWB(Ultra-WideBand) signal is provided to analyze a generated surrounding peak and a generated problem because of the shape of a correlation function of the UWB signal and to solve the problem. CONSTITUTION: Synchronization of a UWB system is performed. A surrounding peak of a UWB correlation function is removed in a tracing process for the synchronization. The surrounding peak is removed based on a receiving signal and the change of a correlation value. A sharp autocorrelation function is obtained by removing values of the correlation function scattered around surrounding peaks. [Reference numerals] (AA) Tracing process
Abstract translation: 目的：提供一种用于跟踪UWB（超宽带）信号的方法，用于分析由于UWB信号的相关函数的形状而产生的周围峰值和产生的问题，并解决问题。 构成：执行UWB系统的同步。 UWB相关函数的周围峰值在用于同步的跟踪过程中被去除。 基于接收信号和相关值的变化去除周围峰。 通过去除围绕周围峰值的相关函数的值获得明显的自相关函数。 （附图标记）（AA）追踪过程
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公开(公告)号：KR1020130039154A
公开(公告)日：2013-04-19
申请号：KR1020110103643
申请日：2011-10-11
Applicant: 목포대학교산학협력단
Abstract: PURPOSE: A sensor using a self-injection locked reflective semiconductor optical amplifier for measuring marine temperature and strain is provided to measure changes in temperature and strain based on the power of an optical bragg lattice as the power of an optical fiber bragg lattice is linearly changed according to changes in the temperature and strain. CONSTITUTION: A sensor using a self-injection locked reflective semiconductor optical amplifier for measuring marine temperature and strain comprises a reflective semiconductor light amplifier(110), a variable optical fiber bragg grating(130), optical fiber bragg gratings(160-200), and a light spectrum analyzer(140). The reflective semiconductor light amplifier is self-injection locked. The variable optical fiber bragg grating generates variable laser sources by self-injection locking the reflective semiconductor light amplifier. [Reference numerals] (110) Reflective semiconductor light amplifier; (140) Light spectrum analyzer;
Abstract translation: 目的：提供一种用于测量海洋温度和应变的自注射锁定反射半导体光学放大器的传感器，用于测量基于光学布拉格点阵的功率的温度和应变的变化，因为光纤布拉格晶格的功率是线性变化的 根据温度和应变的变化。 构成：使用用于测量海洋温度和应变的自注射锁定反射半导体光学放大器的传感器包括反射半导体光放大器（110），可变光纤布拉格光栅（130），光纤布拉格光栅（160-200）， 和光谱分析器（140）。 反射半导体光放大器是自注射锁定的。 可变光纤布拉格光栅通过自发注入锁定反射半导体光放大器来产生可变激光源。 （附图标记）（110）反射半导体光放大器; （140）光谱分析仪;
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Patent Agency Ranking
公开(公告)号：KR1020130005491A
公开(公告)日：2013-01-16
申请号：KR1020110066917
申请日：2011-07-06
Applicant: 목포대학교산학협력단
CPC classification number: H04B7/026 , H04B7/15535 , H04L1/0618
Abstract: PURPOSE: A space time coding OFDM(Orthogonal Frequency Division Multiplexing) based low complexity multiple antenna relay transmitting method is provided to increase diversity gain by using a relay mode, an antenna selection mode, or a circulation delay diversity mode. CONSTITUTION: A signal transmitted to a first timeslot from a source node(100) is received by a multiple receiving antenna. An amplification gain is determined in consideration of average transmission power of each receiving signal. An LC-STBC(Linear Combining-Space-Time Block Coding) signal processing of each receiving signal is performed. The processed signal is amplified as the amplifying gain. The amplified signal is transmitted to a target node(300) through multiple transmission antenna. [Reference numerals] (100) Source node; (300) Target node
Abstract translation: 目的：提供一种基于低复杂度多天线中继传输方式的空时编码OFDM（正交频分复用），通过使用中继模式，天线选择模式或循环延迟分集模式来提高分集增益。 构成：从源节点（100）发送到第一时隙的信号由多个接收天线接收。 考虑到每个接收信号的平均发送功率来确定放大增益。 执行每个接收信号的LC-STBC（线性组合 - 空时块编码）信号处理。 经处理的信号被放大为放大增益。 放大的信号通过多个发送天线发送到目标节点（300）。 （附图标记）（100）源节点; （300）目标节点
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公开(公告)号：KR1020130043962A
公开(公告)日：2013-05-02
申请号：KR1020110108175
申请日：2011-10-21
Applicant: 목포대학교산학협력단
IPC: H03M13/29
CPC classification number: H03M13/2957 , H03M13/6502 , H03M13/6561
Abstract: PURPOSE: A high speed encoding-decoding algorithm is provided to implement a high speed system by simply configuring a structure of a decoder. CONSTITUTION: Decoding on a horizontal/vertical decoder is performed in parallel and a decoding delay is half of an existing method. A metric is external information of a received signal about a horizontal/vertical code word. Decoding about each block is completed and decoding is performed by exchanging external information. Decoding about the horizontal/vertical, an updated signal vector is transmitted to an input for the next repetition.
Abstract translation: 目的：提供高速编码解码算法，通过简单地配置解码器的结构来实现高速系统。 构成：并行执行水平/垂直解码器的解码，解码延迟是现有方法的一半。 度量是关于水平/垂直码字的接收信号的外部信息。 完成关于每个块的解码，并通过交换外部信息进行解码。 对水平/垂直进行解码，将更新的信号矢量发送到下一个重复的输入。
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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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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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公开(公告)号：KR101093151B1
公开(公告)日：2011-12-12
申请号：KR1020100091899
申请日：2010-09-17
Applicant: 목포대학교산학협력단
IPC: H04B7/08
CPC classification number: H04B7/0817
Abstract: PURPOSE: A wireless communication frequency detection method is provided to stably perform frequency detection in different noise and attenuation environments. CONSTITUTION: An algebra similar box is counted in a predetermined type. The algebra similar ratio is selected in consideration of noises included in a natural disposition band discrete time observation vector. The statistic amount is calculated by summing the selected algebra similar ratio. The calculated statistic amount is compared with a threshold value.
Abstract translation: 目的：提供无线通信频率检测方法，在不同的噪声和衰减环境下稳定地进行频率检测。 构成：代数相似框以预定类型计数。 考虑到包括在自然配置带离散时间观测向量中的噪声来选择代数相似比率。 统计量通过对所选代数相似比率求和来计算。 将计算的统计量与阈值进行比较。
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