公开(公告)号：KR1020040031522A

公开(公告)日：2004-04-13

申请号：KR1020020060990

申请日：2002-10-07

Applicant: 한국전자통신연구원

Inventor： 송윤정 ,  김영완 ,  김내수 ,  오덕길

IPC: H04L27/22

CPC classification number: H04L27/2273 ,  H04L27/3809 ,  H04L2027/0028 ,  H04L2027/0057

Abstract: PURPOSE: An apparatus for compensating phase and gain imbalance between an I-channel and a Q-channel is provided to improve a function of a demodulator by detecting the imbalance between the I-channel and the Q-channel and correcting the detected imbalance. CONSTITUTION: An apparatus for compensating phase and gain imbalance between an I-channel and a Q-channel includes an A/D converter(102), a signal recovery unit(114), a decision unit(110), an I/Q gain imbalance detector(109), and an I/Q gain compensator(103). The A/D converter(102) is used for converting a received signal to a digital signal. The signal recovery unit(114) recovers a carrier and symbol timing of an output signal of the A/D converter. The decision unit(110) detects and decides a recovery signal from the signal recovery unit. The I/Q gain imbalance detector(109) is used for detecting the gain imbalance between the I-channel and the Q-channel from the recovery signal. The I/Q gain compensator(103) is installed between the A/D converter and the signal recovery unit in order to reflect an I/Q gain compensation value of the I/Q gain imbalance detector to the received signal.

Abstract translation: 目的：提供一种用于补偿I信道和Q信道之间的相位和增益不平衡的装置，以通过检测I信道和Q信道之间的不平衡以及校正检测到的不平衡来改善解调器的功能。 构成：用于补偿I信道和Q信道之间的相位和增益不平衡的装置包括A / D转换器（102），信号恢复单元（114），判定单元（110），I / Q增益 不平衡检测器（109）和I / Q增益补偿器（103）。 A / D转换器（102）用于将接收信号转换成数字信号。 信号恢复单元（114）恢复A / D转换器的输出信号的载波和符号定时。 决定单元（110）从信号恢复单元检测并确定恢复信号。 I / Q增益不平衡检测器（109）用于从恢复信号中检测I信道和Q信道之间的增益不平衡。 I / Q增益补偿器（103）安装在A / D转换器和信号恢复单元之间，以便将I / Q增益不平衡检测器的I / Q增益补偿值反映到接收信号。

公开(公告)号：KR100392361B1

公开(公告)日：2003-07-23

申请号：KR1020010042469

申请日：2001-07-13

Applicant: 한국전자통신연구원

Inventor： 김영완 ,  송윤정 ,  이점훈 ,  김내수 ,  이호진

IPC: H04B1/16

CPC classification number: H03D7/02 ,  H04B1/28

Abstract: The present invention utilizes an even harmonic mixer for canceling a local oscillator (LO) leakage signal. The apparatus for canceling the LO leakage signal includes an in-phase divider, an intermediate frequency (IF) phase divider, an even harmonic mixers, an RF signal phase combiner and a band pass filter (BPF). The in-phase divider divides an LO signal into two in-phase LO signals, wherein the LO signal is inputted from an exterior LO. The IF phase divider divides an IF signal into two out-of-phase IF signals of which a phase difference is 90°, wherein the IF signal is inputted from an exterior means. The even harmonic mixer outputs two out-of phase RF signals of which the phase difference is 90°, after even-harmonic mixing of two in-phase LO signals divided by the in-phase divider and two out-of-phase IF signals divided by the IF phase divider. The RF signal phase combiner plays a role in canceling an image signal in the RF signal by combining two out-of-phase RF signals outputted from the even harmonic mixer. The BPF is used for canceling a residual component of the leakage signal in the RF signal outputted from the RF signal phase combiner.

Abstract translation: 本发明利用偶次谐波混频器消除本地振荡器（LO）泄漏信号。 用于抵消LO泄漏信号的装置包括同相分频器，中频（IF）分相器，偶次谐波混频器，RF信号相位组合器和带通滤波器（BPF）。 同相分频器将LO信号分成两个同相LO信号，其中LO信号从外部LO输入。 IF分相器将IF信号分成两个相位差为90°的异相IF信号，其中IF信号从外部装置输入。 偶次谐波混频器输出相位差为90°的两个反相RF信号，在用同相分频器分频的两个同相LO信号的偶次谐波混频和两个反相IF信号 通过IF分相器。 RF信号相位合成器通过组合从偶次谐波混频器输出的两个异相RF信号来起到消除RF信号中的图像信号的作用。 BPF用于消除从RF信号相位合成器输出的RF信号中的泄漏信号的残余分量。

公开(公告)号：KR1020030056317A

公开(公告)日：2003-07-04

申请号：KR1020010086516

申请日：2001-12-28

Applicant: 한국전자통신연구원

Inventor： 최승남 ,  김내수 ,  이호진

IPC: H04L12/66

CPC classification number: H04L12/5601 ,  H04L2012/5658 ,  H04L2012/5664 ,  H04L2012/5672 ,  H04L2012/5681

Abstract: PURPOSE: A satellite ATM(Asynchronous Transfer Mode) interface device for transmitting Internet and video data to a satellite network and a method therefor are provided to multiplex ATM data, the Internet data, and the video data of a terrestrial network, which have inter-different traffic characteristics, and transmit the multiplexed data to a satellite. CONSTITUTION: A line interface unit(100) synchronizes a received frame or packet, and transmits a generated corresponding frame or packet to an ATM network, an Internet network, and a transmission network. A cell/frame processing unit(200) receives the frame or packet transmitted from the line interface unit(100), and generates an ATM cell or processes a valid cell and generates a new frame. A FIFO processing unit(300) receives and stores the ATM cell generated from the cell/frame processing unit(200), and grasps states of one or more FIFOs. A multiplexing/demultiplexing process unit(400) receives state grasp result values of the FIFOs from the FIFO processing unit(300), multiplexes the ATM cells according to the characteristic of a traffic, and transmits the multiplexed ATM cell. The multiplexing/demultiplexing process unit(400) demultiplexes a cell received from the outside, and transmits the demultiplexed cells to the FIFO processing unit(300).

Abstract translation: 目的：提供一种将互联网和视频数据传输到卫星网络的卫星ATM（异步传输模式）接口设备及其方法，用于复用ATM数据，互联网数据和地面网络的视频数据， 不同的业务特性，并将复用的数据发送到卫星。 构成：线路接口单元（100）同步接收到的帧或分组，并将生成的对应的帧或分组发送到ATM网络，因特网网络和传输网络。 小区/帧处理单元（200）接收从线路接口单元（100）发送的帧或分组，并生成ATM信元或处理有效小区并生成新帧。 FIFO处理单元（300）接收并存储从小区/帧处理单元（200）生成的ATM信元，并且掌握一个或多个FIFO的状态。 复用/解复用处理单元（400）从FIFO处理单元（300）接收FIFO的状态抓取结果值，根据业务的特性复用ATM信元，并发送多路复用的ATM信元。 复用/解复用处理单元（400）对从外部接收的小区进行解复用，并将解复用的小区发送到FIFO处理单元（300）。

公开(公告)号：KR1020030056310A

公开(公告)日：2003-07-04

申请号：KR1020010086509

申请日：2001-12-28

Applicant: 한국전자통신연구원

Inventor： 주인원 ,  최동준 ,  김태희 ,  김내수 ,  이호진

IPC: H04B7/155

CPC classification number: H04L12/5601 ,  H04L2012/5641 ,  H04L2012/5642 ,  H04L2012/5675

Abstract: PURPOSE: A frame structure for unicasting and multicasting transmission and frame efficiency of a satellite time division multiple access and a method for controlling the same are provided to increase frame transport efficiency of traffic bursts and reduce unnecessary data processing load of a ground network connecting part of traffic earth stations. CONSTITUTION: Each traffic earth station reads frame data and extracts receiving earth station address signals from the read frame data, so that each traffic earth station inspects the highest level bit to judge unicasting. In the case of the unicasting, the traffic earth stations read the rest of bits to judge whether the bits are addresses of local earth stations. If not, the traffic earth stations read the rest of bits to judge whether the bits are broadcasting. In the case of the broadcasting, the earth stations receive the corresponding data. If not, the earth stations decides to receive data according to groups of the data.

Abstract translation: 目的：提供用于单播和多播传输的帧结构和卫星时分多址的帧效率及其控制方法，以提高业务突发的帧传输效率，并减少连接部分的地面网络的不必要的数据处理负担 交通地球站。 构成：每个地球站读取帧数据，并从读取帧数据中提取接收地球站地址信号，以便每个业务地球站检查最高级位以判断单播。 在单播的情况下，业务地球站读取其余比特以判断这些比特是否是本地地球站的地址。 如果没有，则地球站读取其余位以判断这些位是否正在广播。 在广播的情况下，地球站收到相应的数据。 如果不是，地球站决定根据数据组接收数据。

公开(公告)号：KR1020030049179A

公开(公告)日：2003-06-25

申请号：KR1020010079319

申请日：2001-12-14

Applicant: 한국전자통신연구원

Inventor： 송윤정 ,  김영완 ,  김내수 ,  이호진

IPC: H04L27/34

CPC classification number: H04L27/3863 ,  H04L2027/0016 ,  H04L2027/0024

Abstract: PURPOSE: A method for detecting and compensating amplitude and phase imbalances between an I channel and a Q channel in an orthogonal demodulation unit and an orthogonal demodulation unit using the same are provided to prevent deterioration due to the imbalances between the I channel and the Q channel by providing functions for detecting and compensating the imbalances between the I channel and the Q channel. CONSTITUTION: The amount of amplitude and phase imbalances between an I channel and a Q channel according to an input signal is detected by comparing the input signal with a signal determined by a quadrant including the input signal. The input signal is compensated by using the amount of amplitude and phase imbalances between the I channel and the Q channel according to the input signal.

Abstract translation: 目的：提供一种用于检测和补偿正交解调单元中的I信道和Q信道之间的幅度和相位不平衡的方法以及使用其的正交解调单元，以防止由于I信道和Q信道之间的不平衡而导致的劣化 通过提供检测和补偿I信道与Q信道之间的不平衡的功能。 构成：通过将输入信号与由包括输入信号的象限确定的信号进行比较来检测I信道和Q信道之间根据输入信号的振幅和相位不平衡量。 根据输入信号，通过使用I通道和Q通道之间的幅度和相位不平衡量来补偿输入信号。

公开(公告)号：KR1020030006627A

公开(公告)日：2003-01-23

申请号：KR1020010042469

申请日：2001-07-13

Applicant: 한국전자통신연구원

Inventor： 김영완 ,  송윤정 ,  이점훈 ,  김내수 ,  이호진

IPC: H04B1/16

CPC classification number: H03D7/02 ,  H04B1/28

Abstract: PURPOSE: An apparatus for eliminating a leakage signal by using an excellent RF(Radio Frequency) mixer is provided to prevent a spurious wave of a transmitter and a performance degradation of a receiver by eliminating the leakage signal of a local oscillation signal generated in a satellite and a frequency converter of a communication system. CONSTITUTION: An in-phase divider(160) divides a local oscillation signal inputted from the outside into in-phase local oscillation signals. An IF(Intermediate Frequency) phase divider(180) divides an IF signal inputted from the outside into IF signals with 90° phase difference. The first and second excellent RF mixers(170) mix the local oscillation signal divided from the in-phase divider(160) with the IF signal divided from the IF phase divider(180), and output RF(Radio Frequency) signals with 90° phase difference, respectively. An RF signal phase combiner(190) performs the 90° phase combination of the RF signals mixed in the first and second excellent RF mixers(170), and eliminates an image signal. A BPF(Band Pass Filter)(200) eliminates a residual component of a leakage signal from the RF signal of the RF signal phase combiner(190).

Abstract translation: 目的：提供一种通过使用出色的RF（射频）混频器来消除泄漏信号的装置，通过消除在卫星中产生的本地振荡信号的泄漏信号来防止发射机的杂散波和接收机的性能下降 以及通信系统的变频器。 构成：同相分压器（160）将从外部输入的本地振荡信号划分为同相本地振荡信号。 IF（中频）分频器（180）将从外部输入的IF信号分成具有90°相位差的IF信号。 第一和第二优秀RF混频器（170）将从同相分频器（160）分频的本地振荡信号与从IF相位分配器（180）分频的IF信号混合，并输出90°的RF（射频）信号 相位差。 RF信号相位合成器（190）执行混合在第一和第二优秀RF混频器（170）中的RF信号的90°相位组合，并且消除图像信号。 BPF（带通滤波器）（200）消除来自RF信号相位合成器（190）的RF信号的泄漏信号的残留分量。

公开(公告)号：KR1020020051547A

公开(公告)日：2002-06-29

申请号：KR1020000080919

申请日：2000-12-22

Applicant: 한국전자통신연구원

Inventor： 김영완 ,  송윤정 ,  김내수 ,  오덕길

IPC: H04B15/06

CPC classification number: H04B15/06

Abstract: PURPOSE: An apparatus for canceling the leakage signal of a local oscillator signal is provided to remove a leakage signal from a local oscillator signal by detecting a reverse phase signal size difference and a phase difference, generated due to the signal path difference between a leakage signal and a reverse phase signal, and controlling the reverse phase signal with the detected differences. CONSTITUTION: An apparatus for canceling the leakage signal of a local oscillator signal is composed of an RF amplifier(20), a frequency converter(30), a band pass filter(50), a generator/adjuster(60), a detector(70), and a combiner(80). The RF amplifier(20) executes low noise amplification for an RF signal received through an antenna. The frequency converter(30) converts the RF signal inputted from the RF amplifier(20) into an IF signal by a local oscillator signal inputted from a local oscillator(40) and outputs the IF signal containing a leakage signal. The band pass filter(50) filters only a specific band among the output signals of the frequency converter(30). The generator/adjuster(60) generates the reverse phase signal of the local oscillator signal, adjusts the gain and phase of the reverse phase signal, and outputs the gain/phase-adjusted reverse phase signal. The detector(70) detects the gain difference and phase difference of the leakage signal inputted from the band pass filter(50) and the reverse phase signal inputted from the generator/adjuster(60), calculates a gain control value and a phase control value through the detected differences, and the calculated control values to the generator/adjuster(60). The combiner(80) combines the output signal of the band pass filter(50) with the output signal of the generator/adjuster(60) and outputs a leakage signal-cancelled IF signal.

Abstract translation: 目的：提供一种用于消除本地振荡器信号的泄漏信号的装置，用于通过检测由于泄漏信号之间的信号路径差产生的反相信号尺寸差和相位差来从本地振荡器信号中去除泄漏信号 和反相信号，并用检测到的差异控制反相信号。 一种用于消除本地振荡器信号的泄漏信号的装置由RF放大器（20），变频器（30），带通滤波器（50），发生器/调节器（60），检测器 70）和组合器（80）。 RF放大器（20）对通过天线接收的RF信号执行低噪声放大。 变频器（30）通过从本地振荡器（40）输入的本地振荡器信号将从RF放大器（20）输入的RF信号转换为IF信号，并输出包含泄漏信号的IF信号。 带通滤波器（50）仅对变频器（30）的输出信号中的特定频带进行滤波。 发生器/调节器（60）产生本地振荡器信号的反相信号，调整反相信号的增益和相位，并输出增益/相位调整的反相信号。 检测器（70）检测从带通滤波器（50）输入的泄漏信号和从发生器/调节器（60）输入的反相信号的增益差和相位差，计算增益控制值和相位控制值 通过检测到的差异，以及计算出的控制值到发电机/调节器（60）。 组合器（80）将带通滤波器（50）的输出信号与发生器/调节器（60）的输出信号组合，并输出泄漏信号消除的IF信号。

公开(公告)号：KR100119916B1

公开(公告)日：1997-10-30

申请号：KR1019940036974

申请日：1994-12-23

Applicant: 주식회사 케이티 ,  한국전자통신연구원

Inventor： 김내수

IPC: H03H7/38

Abstract: An apparatus for processing an intermediate frequency in a DGS-200 system(Demand Assignment Multiple Access/Single Channel Per Carrier Ground System) backplane is disclosed. The apparatus comprises a number of channel unit(401, 401') for inputting and outputting the intermediate frequency; a radio frequency generating unit for transmitting and receiving the signal and connected to a transmitter and receiver; a transmitting and a receiving intermediate filtering units(407 and 415) for filtering the frequency of the signal which is transmitted and received between the channel unit and the radio frequency generating unit; and a backplane PCB for connecting the channel unit to the intermediate frequency filter unit.

Abstract translation: 公开了一种用于在DGS-200系统（需求分配多路访问/单载波接地系统单一信道）背板中处理中频的装置。 该装置包括用于输入和输出中频的多个通道单元（401,401'）; 射频发生单元，用于发送和接收信号并连接到发射机和接收机; 发送和接收中间滤波单元（407和415），用于对在信道单元和射频产生单元之间发送和接收的信号的频率进行滤波; 以及用于将通道单元连接到中频滤波器单元的背板PCB。

公开(公告)号：KR1019960027262A

公开(公告)日：1996-07-22

申请号：KR1019940036974

申请日：1994-12-23

Applicant: 주식회사 케이티 ,  한국전자통신연구원

Inventor： 김내수

IPC: H03H7/38

Abstract: 본 발명은 채널유니트 보드의 삽입과 탈장에 따른 결합기와 분배기의 임피던스 정합상태를 자동으로 맞추어 주는 DGS-200시스템(Demand Assignement Multiple Access/Single Channel Per Carrier Ground System)에 있어서, 중간 주파수를 입/출력하는 다수의 채널유니트(401,401') ; 송/수신 장치와 연결되어 신호를 송/수신하는 RF(Radio Frequency)발생수단 ; 상기 다수의 채널유니트와 송/수신하는 RF부 사이의 신호 전송 주파수를 필터링하는 송신 중간주파수 필터릴 수단(407)과수신 중간주파수 필터링 수단(415) ; 및 상기 다수의 채널유니트의 상기 중간주파수 필터부를 연결하고, 중간주파수 신호들간의 상호간섭을 최소화하는 간격 및 계층의 배치로 형성된 트랙을 가지는 제1백플레인 인쇄회로기판(403)을 포함하여이루어지는 것을 특징으로 한다.

公开(公告)号：KR102245583B1

公开(公告)日：2021-04-28

申请号：KR1020150009135

申请日：2015-01-20

Applicant: 한국전자통신연구원

Inventor： 김내수 ,  류재홍 ,  이계선

IPC: G01S19/14 ,  G01S19/34 ,  H02J7/35 ,  H02J7/34 ,  A01K27/00

Abstract: 야생동물의위치, 서식지및 활동환경, 그리고활동상태정보를수집하여원격지의서버에게로전송할수 있는야생동물목걸이, 및그 야생동물목걸이에서측정된야생동물의위치, 서식지및 활동환경, 그리고활동상태정보를원격으로수신하여야생동물의서식환경및 활동상황을분석하는야생동물활동모니터링/운용관리장치를제시한다. 제시된야생동물목걸이는야생동물의서식지환경및 활동상태정보를수집하는센서모듈부, 야생동물의위치정보를수집하는 GPS 수신기, 야생동물의서식지환경및 활동상태정보및 위치정보를이동통신모듈부를통해원격지의서버에게로전송하고센서모듈부및 GPS 수신기의정보수집주기및 야생동물의서식지환경및 활동상태정보및 위치정보의상기서버로의전송주기에대한변경제어를상기이동통신모듈부를통해수신하여그에따라변경하는메인프로세서, 및센서모듈부와 GPS 수신기및 메인프로세서에게전원을공급하는에너지하베스팅전원공급/충전모듈부를포함한다.