公开(公告)号：KR1020040021188A

公开(公告)日：2004-03-10

申请号：KR1020020052764

申请日：2002-09-03

Applicant: 한국전자통신연구원 ,  한국과학기술원

Inventor： 최인경 ,  정영호 ,  김성락 ,  홍승철 ,  이용훈

IPC: H04B1/711

CPC classification number: H04B1/71055 ,  H04B1/7115 ,  H04B7/04 ,  H04B7/0854 ,  H04L2025/03605

Abstract: PURPOSE: An adaptive interference mitigating receiver for a DS/CDMA communication system using space-time block coding is provided for a quality service at a high speed by improving data detection performance in a multi-path fading channel environment. CONSTITUTION: Chip matching filters(210,220) match-filter signals received from antennas(40) on the basis of a chip period and output them. Input signal generation buffers(310,320) generate vectors corresponding to signal blocks outputted from the chip matching filters(210,220) and output them according to a symbol period. Adaptive filter blocks(410-440) filter signals outputted from the input signal generation buffers(310,320) according to a tab weight controlled by a specific period and output them. A coupler(600) couples the signals outputted from the adaptive filter blocks(410-440) and outputs it. A data determining unit(700) restores an original signal that a specific user intends to transmit by using a signal outputted by the coupler(600). A reference signal selector(800) selectively outputs either a signal outputted from the data determining unit(700) or a learn data signal. Error generation blocks(510-540) generate an error signal for controlling a tap weight used in the adaptive filter blocks(410-440) by using a signal outputted from the reference signal selector(800) and a signal outputted from the adaptive filter blocks(410-440).

Abstract translation: 目的：通过改善多径衰落信道环境中的数据检测性能，为高速度的质量服务提供了采用空时块编码的DS / CDMA通信系统的自适应干扰减轻接收机。 构成：芯片匹配滤波器（210,220）基于芯片周期从天线（40）接收的匹配滤波器信号并输出​​它们。 输入信号产生缓冲器（310,320）产生与从芯片匹配滤波器（210,220）输出的信号块相对应的矢量，并根据符号周期输出它们。 自适应滤波器块（410-440）根据由特定周期控制的标签权重对从输入信号产生缓冲器（310,320）输出的信号进行滤波并输出。 耦合器（600）耦合从自适应滤波器块（410-440）输出的信号并将其输出。 数据确定单元（700）通过使用由耦合器（600）输出的信号来恢复特定用户想要发送的原始信号。 参考信号选择器（800）有选择地输出从数据确定单元（700）输出的信号或学习数据信号。 错误产生块（510-540）通过使用从参考信号选择器（800）输出的信号和从自适应滤波器块输出的信号产生用于控制自适应滤波器块（410-440）中使用的抽头加权的误差信号 （410-440）。

公开(公告)号：KR1020020084800A

公开(公告)日：2002-11-11

申请号：KR1020010036184

申请日：2001-06-25

Applicant: 한국전자통신연구원

Inventor： 김성락 ,  최진호 ,  정영호 ,  홍승철 ,  이용훈

IPC: H04B1/7115

CPC classification number: H04B1/7115 ,  H04B1/71055

Abstract: PURPOSE: An adaptive rake receiving device having at least one restriction in a mobile communication system is provided to estimate each multi-path element channel phase and amplitudes by using an adaptive filter output, thereby removing all multi-user interferences to have channel estimated values without a shit from the adaptive filter output. CONSTITUTION: Transmission delay compensating buffers(100,200) collect parts only occupied by transmission codes of each multi-path element, and transmit the collected parts to adaptive filters(110,210). The adaptive filers(110,210) filter complex receiving signals according to tab weight controlled at predetermined intervals. Channel estimators(130,230) estimate phase elements and amplitude elements of specific user channels. A signal restorer couples channel estimated result signals of the channel estimators(130,230) with a filtered receiving signal applied from the adaptive filters(110,210), and restores to original signals. A selector selects one of the restored signals. A reference signal generator generates a reference signal by using the signal of the selector and the channel estimated result signals. An error calculator calculates an error between the reference signal and the filtered receiving signal. A tap weight controller controls the tab weight on the basis of a constraint MMSE criterion.

Abstract translation: 目的：提供一种在移动通信系统中具有至少一个限制的自适应耙式接收装置，以通过使用自适应滤波器输出来估计每个多径单元信道相位和振幅，从而消除所有多用户干扰以具有信道估计值而没有 来自自适应滤波器输出的狗屎。 构成：传输延迟补偿缓冲器（100,200）收集仅由每个多路径元件的传输代码占用的部分，并将收集的部分发送到自适应滤波器（110,210）。 自适应滤波器（110,210）根据以预定间隔控制的片重量来过滤复数接收信号。 信道估计器（130,230）估计特定用户信道的相位元素和振幅元素。 信号恢复器将信道估计器（130,230）的信道估计结果信号与从自适应滤波器（110,210）施加的滤波接收信号相耦合，并恢复到原始信号。 选择器选择一个恢复的信号。 参考信号发生器通过使用选择器的信号和信道估计结果信号来产生参考信号。 误差计算器计算参考信号和滤波后的接收信号之间的误差。 抽头重量控制器根据约束MMSE标准控制纸张重量。

公开(公告)号：KR100450849B1

公开(公告)日：2004-10-01

申请号：KR1020020052764

申请日：2002-09-03

Applicant: 한국전자통신연구원 ,  한국과학기술원

Inventor： 최인경 ,  정영호 ,  김성락 ,  홍승철 ,  이용훈

IPC: H04B1/711

CPC classification number: H04B1/71055 ,  H04B1/7115 ,  H04B7/04 ,  H04B7/0854 ,  H04L2025/03605

Abstract: An adaptive interference suppression receiver for a DS/CDMA system includes: input signal generators outputting a part of received signals of receiver antennas that has a coding block's transfer code; adaptive filter blocks filtering a complex signal output from the input signal generators with a tap weight updated based on a constraint MMSE criterion and estimating phase and amplitude components of a specific user channel using the filtering output signal to generate a channel-estimated signal; a signal restorer combining the channel-estimated signal and the filtering output signal and restoring an original signal; a signal selector for selecting known training data signal or the restored signal; and error generators comparing the channel-estimated signal and the filtering output signal and calculating an error between the two signals.

Abstract translation: 用于DS / CDMA系统的自适应干扰抑制接收机包括：输入信号发生器，输出接收天线的接收信号的一部分，其具有编码块的传送码; 自适应滤波器块利用基于约束MMSE准则更新的抽头权重对从输入信号生成器输出的复信号进行滤波，并且使用滤波输出信号来估计特定用户信道的相位和振幅分量以生成信道估计信号; 信号恢复器，将信道估计信号和滤波输出信号组合并恢复原始信号; 信号选择器，用于选择已知的训练数据信号或恢复的信号; 以及误差生成器，将信道估计信号与滤波输出信号进行比较并计算两个信号之间的误差。

公开(公告)号：KR100384897B1

公开(公告)日：2003-05-23

申请号：KR1020010036184

申请日：2001-06-25

Applicant: 한국전자통신연구원

Inventor： 김성락 ,  최진호 ,  정영호 ,  홍승철 ,  이용훈

IPC: H04B1/7115

Abstract: PURPOSE: An adaptive rake receiving device having at least one restriction in a mobile communication system is provided to estimate each multi-path element channel phase and amplitudes by using an adaptive filter output, thereby removing all multi-user interferences to have channel estimated values without a shit from the adaptive filter output. CONSTITUTION: Transmission delay compensating buffers(100,200) collect parts only occupied by transmission codes of each multi-path element, and transmit the collected parts to adaptive filters(110,210). The adaptive filers(110,210) filter complex receiving signals according to tab weight controlled at predetermined intervals. Channel estimators(130,230) estimate phase elements and amplitude elements of specific user channels. A signal restorer couples channel estimated result signals of the channel estimators(130,230) with a filtered receiving signal applied from the adaptive filters(110,210), and restores to original signals. A selector selects one of the restored signals. A reference signal generator generates a reference signal by using the signal of the selector and the channel estimated result signals. An error calculator calculates an error between the reference signal and the filtered receiving signal. A tap weight controller controls the tab weight on the basis of a constraint MMSE criterion.

Abstract translation: 目的：提供一种在移动通信系统中具有至少一个限制的自适应瑞克接收设备，用于通过使用自适应滤波器输出来估计每个多径元件信道相位和振幅，由此消除所有多用户干扰以具有信道估计值而无需 一个来自自适应滤波器输出的狗屎。 构成：传输延迟补偿缓冲器（100,200）收集仅由每个多路径元件的传输码占用的部分，并将收集的部分传输到自适应滤波器（110,210）。 自适应滤波器（110,210）根据以预定间隔控制的标签权重来过滤复杂的接收信号。 信道估计器（130,230）估计特定用户信道的相位元素和幅度元素。 信号恢复器将信道估计器（130,230）的信道估计结果信号与从自适应滤波器（110,210）施加的滤波后的接收信号相耦合，并恢复成原始信号。 选择器选择一个恢复的信号。 参考信号生成器通过使用选择器的信号和信道估计结果信号来生成参考信号。 误差计算器计算参考信号和滤波后的接收信号之间的误差。 轻拍重量控制器基于约束MMSE标准来控制标签权重。