公开(公告)号：KR1020010018929A

公开(公告)日：2001-03-15

申请号：KR1019990035088

申请日：1999-08-24

Applicant: 한국전자통신연구원

Inventor： 권오형 ,  김명섭 ,  이성팔

IPC: H04L12/28

CPC classification number: H04L12/5601 ,  H04L1/0047 ,  H04L27/34 ,  H04L49/3081 ,  H04L2012/5608

Abstract: PURPOSE: A method and a device for processing satellite ATM(Asynchronous Transfer Mode) transceiving signals at 155-Mbps, are provided to enable the transceiving of 155-Mbps burst mode signals by using the satellite, and to define and implement a 155-Mbps transceiving format for the burst transceiving and afterward TDMA(Time Division Multiple Access). CONSTITUTION: A terrestrial network signal processing unit(100) performs terrestrial network signal processing for ATM(Asynchronous Transfer Mode) signals inputted from an ATM switch, for transmission to a satellite. A satellite signal receiving processing unit(200) processes ATM signals received from the satellite, and outputs the ATM signals to the ATM switch as terrestrial network signals. A transceiving control unit(300) is connected to the processing units(100,200) through buses, and controls the transceiving of ATM cells, then displays a control state. The number of zero(0) and one(1) dually received by bits in a predetermined byte of ATM cell counter, and a value over generality are decided as a received bit value. Residual bits are decided to extract an ATM cell counter value. The ATM cell counter is detected in a QPSK(Quadrature Phase-Shift Keying) demodulator(202), to transmit only IB(Internal Block) in a deframer(203) to an error correction decoder(204). ATM cells decoded in the error correction decoder(204) as much as the ATM cell counter value are delivered to a terrestrial network output ATM buffer(205). Viterbi decoding and interleaving functions are performed by IB blocks received from the error correction decoder(204), and RS(Reed-Solomon) decoding and descrambling functions are performed by the unit of RSB(RS Block). The descrambling-ended ATM cells are delivered to the terrestrial network output ATM buffer(205), and ATM cells accumulated in the buffer(205) are transmitted to a terrestrial network output signal processor(206). ATM cells received by being adjusted to a transceiving speed pre-configured in the terrestrial network signal processor(206) are transmitted to an ATM exchange through an optical fiber and a coaxial cable, with an STM(Synchronous Transfer Mode)-1 or a DS(Digital Signal)-3 protocol.

Abstract translation: 目的：提供用于处理155Mbps的收发信号的卫星ATM（异步传输模式）收发信号的方法和装置，以便能够通过使用卫星收发155 Mbps的突发模式信号，并定义和实现155 Mbps 用于突发收发和以后TDMA（时分多址）的收发格式。 构成：地面网络信号处理单元（100）对从ATM交换机输入的ATM（异步传输模式）信号进行地面网络信号处理，以传输到卫星。 卫星信号接收处理单元（200）处理从卫星接收到的ATM信号，并将ATM信号作为地面网络信号输出到ATM交换机。 收发控制单元（300）通过总线连接到处理单元（100,200），并控制ATM信元的收发，然后显示控制状态。 由ATM单元计数器的预定字节中的比特双向接收的零（0）和一（1）的数量以及一般性的值被确定为接收的比特值。 确定剩余位以提取ATM信元计数器值。 在QPSK（正交相移键控）解调器（202）中检测出ATM信元计数器，以仅在发送器（203）中将IB（内部块）发送到纠错解码器（204）。 在纠错解码器（204）中解码的与ATM信元计数器值一样多的ATM信元被传送到地面网络输出ATM缓冲器（205）。 维特比解码和交织功能由从纠错解码器（204）接收的IB块执行，RS（Reed-Solomon）解码和解扰功能以RSB（RS Block）为单位进行。 解扰端ATM信元被传送到地面网络输出ATM缓冲器（205），并且累积在缓冲器（205）中的ATM信元被发送到地面网络输出信号处理器（206）。 通过被调整为在地面网络信号处理器（206）中预配置的收发速度接收的ATM信元通过具有STM（同步传送模式）-1或DS的同轴电缆被发送到ATM交换机 （数字信号）-3协议。

公开(公告)号：KR1020000014912A

公开(公告)日：2000-03-15

申请号：KR1019980034557

申请日：1998-08-26

Applicant: 한국전자통신연구원

Inventor： 김명섭 ,  송윤정 ,  이성팔 ,  채종석

IPC: H04L1/00

CPC classification number: H04L27/0014 ,  H04L2027/003 ,  H04L2027/0055

Abstract: PURPOSE: A device for recovering decision-directed carrier wave is provided to swiftly recover phase and frequency of carrier wave, by processing a baseband signal in a complex domain. CONSTITUTION: A device for recovering carrier wave of a signal inputted from outside comprises: a first conjugate complex number generating section(110) for outputting the first conjugate complex number, after receiving the complex number; a frequency recovering section(120) for recovering carrier frequency of the inputted signal, by compensating carrier wave frequency offset inputted from outside, after receiving the first conjugate complex number; a recovering section(130) for recovering carrier wave phase of a signal, which the frequency is recovered by a frequency recovering device, by compensating the phase offset outputted from the frequency recovering device, after receiving the first conjugate complex number; a complex number deciding section(130) for deciding a predetermined complex number, fit for the output value of the phase recovering device, and outputting the decided predetermined complex number to the conjugate complex number generating section(110).

Abstract translation: 目的：提供一种用于恢复决策载波的设备，通过处理复杂域中的基带信号，快速恢复载波的相位和频率。 构成：用于恢复从外部输入的信号的载波的装置包括：在接收到复数之后，输出第一共轭复数的第一共轭复数产生部分（110） 频率恢复部（120），用于通过在接收到第一共轭复数之后补偿从外部输入的载波频率偏移来恢复输入信号的载波频率; 恢复部分，用于在接收到第一共轭复数之后，通过补偿从频率恢复装置输出的相位偏移来恢复频率由频率恢复装置恢复的信号的载波相位; 用于确定预定复数的复数确定部分（130），适合相位恢复装置的输出值，并将所确定的预定复数输出到共轭复数产生部分（110）。

公开(公告)号：KR1020010076780A

公开(公告)日：2001-08-16

申请号：KR1020000004135

申请日：2000-01-28

Applicant: 한국전자통신연구원

Inventor： 송윤정 ,  김명섭 ,  오덕길

IPC: H04L27/00

CPC classification number: H04L27/2662 ,  H04L27/0014 ,  H04L27/066 ,  H04L2027/0036

Abstract: PURPOSE: A device and method for parallel-treating timing restoration using interpolation filter is provided to operate a symbol timing restoration circuit which use the interpolation filter in real time, and obtain a symbol timing error with high speed. CONSTITUTION: A frequency down and matching filter(103) downs an input frequency from an analog/digital converter(101) and detects by a matching operation. A digital interpolation filter(111) performs an interpolation filtering operation by a control signal for the output signals from the frequency down and matching filter(103). A decision section(106) decides and outputs a symbol from the input signal. A carrier restoration device(114) restores the carrier after receiving an output signal from the decision section(106). A symbol timing restoration device(112) controls filtering coefficient of the digital interpolation filter according to the input and output signal of decision section(106).

Abstract translation: 目的：提供一种使用内插滤波器并行处理定时恢复的装置和方法，用于实时使用内插滤波器的符号定时恢复电路，并以高速获得符号定时误差。 构成：降频和匹配滤波器（103）降低模拟/数字转换器（101）的输入频率，并通过匹配操作进行检测。 数字内插滤波器（111）通过来自频率下降和匹配滤波器（103）的输出信号的控制信号进行插值滤波操作。 决定部（106）从输入信号中决定并输出符号。 载波恢复装置（114）在从决定部（106）接收到输出信号之后恢复载波。 符号定时恢复装置（112）根据判定部（106）的输入和输出信号控制数字内插滤波器的滤波系数。

公开(公告)号：KR1020010054210A

公开(公告)日：2001-07-02

申请号：KR1019990054895

申请日：1999-12-03

Applicant: 한국전자통신연구원

Inventor： 김명섭 ,  성진숙 ,  오덕길

IPC: H04B7/15

CPC classification number: H04L27/2272 ,  H04L2027/003 ,  H04L2027/0055 ,  H04L2027/0067 ,  H04L2027/0085

Abstract: PURPOSE: A decision-directed carrier restoring apparatus and a method using an LMS technique are provided to be suitably used for a high speed satellite communication having a quick acquisition performance by reducing a complexity and promptly restoring a phase and a frequency of a carrier by processing a baseband signal in a complex region. CONSTITUTION: A frequency detecting unit(110) compensates a carrier frequency off-set of an external input signal(111) and restores a carrier frequency of the input signal. A phase detector(120) compensates a phase off-set of a signal outputted from the frequency detecting unit(110) and detects a carrier phase of the signal of which the frequency has been detected by the frequency detecting unit(110). A complex determining unit(130) determines a predetermined complex suitable to the output signal value of the phase detecting unit(120), and outputs the determined complex to the frequency detecting unit(110) and the phase detector(120).

Abstract translation: 目的：提供一种决策导向载波恢复装置和使用LMS技术的方法，适用于具有快速采集性能的高速卫星通信，通过降低复杂度并迅速恢复载波的相位和频率，通过处理 复杂区域中的基带信号。 构成：频率检测单元（110）补偿外部输入信号（111）的载波频率偏移，并恢复输入信号的载波频率。 相位检测器（120）补偿从频率检测单元（110）输出的信号的相位偏移，并且检测由频率检测单元（110）检测到频率的信号的载波相位。 复数确定单元（130）确定适合于相位检测单元（120）的输出信号值的预定复合，并将确定的复数输出到频率检测单元（110）和相位检测器（120）。

公开(公告)号：KR1020010010342A

公开(公告)日：2001-02-05

申请号：KR1019990029162

申请日：1999-07-19

Applicant: 한국전자통신연구원

Inventor： 김명섭 ,  송윤정 ,  이성팔

IPC: H04L27/38

Abstract: PURPOSE: A timing interpolation device and method using the same is provided to use a raised-cosine filter as an interpolation filter, to select the coefficient group of the interpolation filter depending on the difference of a symbol timing phase after tying the coefficient groups of the interpolation filter into some group without using a PLL and to send the symbol timing location and the interpolation filter output. CONSTITUTION: In a timing restoration device of a communication system using an interpolation filter, the digital interpolation filter includes a raised-cosine filter as to prevent a timing slip generated from an A/D converter converting a received analog signal to a digital signal, thereby interpolating an input signal. A symbol timing restoration device generates a control signal allowing to prevent the timing slip using the digital interpolation filter. The timing restoration device prevents the degradation of the property without using the PLL method.

Abstract translation: 目的：提供一种定时插值装置及其使用方法，使用升余弦滤波器作为内插滤波器，根据码元定时相位的差异来选择内插滤波器的系数组， 插值滤波器组成一组而不使用PLL并发送符号定时位置和插值滤波器输出。 构成：在使用内插滤波器的通信系统的定时恢复装置中，数字内插滤波器包括升余弦滤波器，以防止从A / D转换器产生的定时滑动将接收到的模拟信号转换为数字信号，从而 内插输入信号。 符号定时恢复装置产生允许使用数字内插滤波器来防止定时滑移的控制信号。 定时恢复装置防止性能下降而不使用PLL方法。

公开(公告)号：KR1020140057947A

公开(公告)日：2014-05-14

申请号：KR1020120124341

申请日：2012-11-05

Applicant: 한국전자통신연구원

Inventor： 강민수 ,  김명섭 ,  변우진 ,  김봉수 ,  김광선 ,  최재익

IPC: H04L27/18

CPC classification number: H04L27/2003

Abstract: The present invention relates to an open ring type continuous phase modulation device which decreases the complexity of a CE method using a continuous phase shift method; has a constant amplitude; and enables the conversion of an existing PSK system into a CPM system through minimum frequency shift. Also, the open ring type continuous phase modulation device enables the most efficient use of PA without a backup as the open ring type continuous phase modulation device can be operated in a point of an RF having the maximum PA without distortion of signals; and is applicable to equipment required for high efficiency wireless transmission technology such as new lighting using LED, military technology, and communication convergence technology.

Abstract translation: 本发明涉及使用连续相移法降低CE方法的复杂度的开环式连续相位调制装置， 具有恒定的振幅; 并且能够通过最小频移将现有的PSK系统转换成CPM系统。 此外，开环型连续相位调制装置能够最有效地使用PA而无需备用，因为开环式连续相位调制装置可以在没有信号失真的具有最大PA的RF的点上操作; 适用于使用LED，军事技术和通信融合技术的新型照明等高效率无线传输技术所需的设备。

公开(公告)号：KR1020010076791A

公开(公告)日：2001-08-16

申请号：KR1020000004146

申请日：2000-01-28

Applicant: 한국전자통신연구원

Inventor： 송윤정 ,  김명섭 ,  오덕길

IPC: H04L27/00

CPC classification number: H04L27/0014 ,  H04L2027/0026 ,  H04L2027/0065 ,  H04L2027/0067

Abstract: PURPOSE: A parallel processing device of a decision directed carrier restoration apparatus is provided to increase calculation processing speed by parallel processing method other than sequential processing method. CONSTITUTION: The parallel processing device of a decision directed carrier restoration apparatus has the parallel frequency offset compensating part(101) and the parallel phase offset compensating part(102). The parallel frequency offset compensating part(101) parallel-inputs the carrier signal and compensates for the frequency offset by frequency tracking loop. The parallel phase offset compensating part(102) compensates for the frequency-compensated signal from the parallel frequency offset compensating part(101) by phase tracking loop(PTL).

Abstract translation: 目的：提供一种决策导向载波恢复装置的并行处理装置，通过并行处理方法以外的顺序处理方法来提高计算处理速度。 构成：决策导向载波恢复装置的并行处理装置具有并行频率补偿部分（101）和并行相位偏移补偿部分（102）。 并行频偏补偿部（101）并行输入载波信号，并通过频率跟踪回路补偿频偏。 并行相位偏移补偿部件（102）通过相位跟踪环路（PTL）补偿来自并行频率补偿部分（101）的频率补偿信号。