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    • 83. 发明公开
    • 실수 선부호기를 이용한 신호 송신 시스템 및 방법
    • 使用实际预编码信号发送的系统和方法
    • KR1020130087350A
    • 2013-08-06
    • KR1020120101032
    • 2012-09-12
    • 전남대학교산학협력단
    • 정태진
    • H04L27/26
    • H04L1/0042H04L1/0668
    • PURPOSE: A signal transmission system using a real number line coder and a method thereof are provided to have an identical function with the existing Zhu-DSTM method and are provided to lower the complexity of the reception end, thereby showing the improved performance. CONSTITUTION: A signal transmission system (100) comprises a real number line coder (110), a first encoder (120), a second encoder (130), a calculator (140), and a delay unit (150). The line coder receives an input vector as a first sub-input vector and a second sub-input vector, encodes the input vector as real number, and outputs as an encoded first sub-input vector and an encoded second sub-input vector. A first encoder receives and encodes the encoded first sub-input vector which is outputted from the line coder, and outputs as a first sub-signal matrix. A second encoder receives and encodes the encoded second sub-input vector which is outputted from the line coder, and outputs as a second sub-signal matrix. The calculator uses the first sub-signal matrix, the second sub-signal matrix, and a first final transmission code matrix, which is generated based on the input vector received before the input vector, to generate a second final transmission code matrix of the input vector. [Reference numerals] (110) Real number line coder; (120) First encoder; (130) Second encoder; (140) Calculator; (150) Delay unit
    • 目的:提供使用实数线路编码器的信号传输系统及其方法,以与现有的Zhu-DSTM方法具有相同的功能,并提供其以降低接收端的复杂度,从而显示出改进的性能。 构成:信号传输系统(100)包括实线编码器(110),第一编码器(120),第二编码器(130),计算器(140)和延迟单元(150)。 线编码器接收作为第一子输入向量和第二子输入向量的输入向量,将输入向量编码为实数,并作为编码的第一子输入向量和编码的第二子输入向量输出。 第一编码器接收并编码从线编码器输出的编码的第一子输入矢量,并作为第一子信号矩阵输出。 第二编码器接收并编码从线编码器输出的编码的第二子输入矢量,并作为第二子信号矩阵输出。 计算器使用基于在输入向量之前接收的输入向量生成的第一子信号矩阵,第二子信号矩阵和第一最终传输码矩阵,以生成输入的第二最终传输码矩阵 向量。 (附图标记)(110)实数编码器; (120)第一编码器; (130)第二编码器; (140)计算器; (150)延迟单元
    • 84. 发明公开
    • 해상풍력 무선통신 제어 시스템의 성능 향상을 위한 알라무티 시공간 부호 적용 방법
    • 用于增强风力发电无线电通信控制系统的应用ALAMOUTI方法
    • KR1020130039156A
    • 2013-04-19
    • KR1020110103645
    • 2011-10-11
    • 목포대학교산학협력단
    • 이예훈김동호최승호이성로오일환양준철방종대김동진김원주
    • H04L1/06H04B7/04
    • H04L1/0668H04B7/0413H04L1/22
    • PURPOSE: An Alamouti STBC applying method for enhancing performance of an offshore wind power radio communication control system is provided to apply a MIMO Alamouti STBC(Space-Time Block Coding) to a radio communication based control system, thereby improving transmission quality and reliability of the control system. CONSTITUTION: An Alamouti STBC applying method comprises the steps of: building multiple antennas using the overlay network technology; applying MIMO Alamouti STBC for optimal communication of the multiple antennas. When a control system operates normally, the control system processes valid data by interworking an up line with nets of odd numbers and a down line with nets of even numbers. When failing in forming a wireless link of the up line to a radio device in the front car of a train or detecting an error, the control system reads data of the radio device in the tail car for processing the data as valid data.
    • 目的:提供一种用于提高海上风电无线电通信控制系统性能的Alamouti STBC应用方法,以将MIMO Alamouti STBC(空时块编码)应用于基于无线电通信的控制系统,从而提高传输质​​量和可靠性 控制系统。 规定:Alamouti STBC应用方法包括以下步骤:使用覆盖网络技术构建多个天线; 应用MIMO Alamouti STBC来实现多个天线的最佳通信。 当控制系统正常运行时,控制系统通过与奇数网络的上行线路和偶数网络的下行线路互相处理有效数据。 当在上行线路的无线链路形成到列车的前车中的无线电设备或检测到错误时,控制系统读取尾巴中的无线电设备的数据,以将数据作为有效数据进行处理。
    • 88. 发明公开
    • 부분 응답 코딩을 이용한 알라모우티 SFBC―OFDM 시스템 및 통신 방법
    • ALAMOUTI SFBC-OFDM系统和使用部分响应编码的通信方法
    • KR1020100107096A
    • 2010-10-05
    • KR1020090025195
    • 2009-03-25
    • 서울대학교산학협력단
    • 최정민이재홍
    • H04L27/26H04B7/04
    • H04L1/0606H04L1/0668H04L25/03006H04L27/2628
    • PURPOSE: An alamouti SFBC-OFDM system and a communicating method using a partial response coding are provided to encode a data stream to be transmitted by using a frequency-domain partial response coding. CONSTITUTION: A transmitter transmits data. A receiver receives the data. The transmitter includes a partial response coding unit for partial response encoding. A modulation unit(11) modulates an input data stream. A serial to parallel converter(12) converts a serial data stream to a parallel data stream. An alamouti SFBC-OFDM encoder(14) performs an alamouti encoding. A plurality of inverse fast Fourier transform units(15) performs an inverse fast Fourier transform for converting the data stream into the data of a time domain in a transmission process. A partial response coding unit is connected between the serial to parallel converter and the alamouti encoder.
    • 目的:提供一种alamouti SFBC-OFDM系统和使用部分响应编码的通信方法,以通过使用频域部分响应编码对要发送的数据流进行编码。 构成:发射机发射数据。 接收器接收数据。 发射机包括用于部分响应编码的部分响应编码单元。 调制单元(11)调制输入数据流。 串行到并行转换器(12)将串行数据流转换为并行数据流。 alamouti SFBC-OFDM编码器(14)执行alamouti编码。 多个逆快速傅立叶变换单元(15)在传输过程中执行用于将数据流转换成时域的数据的快速傅立叶逆变换。 部分响应编码单元连接在串并转换器和alamouti编码器之间。