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公开(公告)号：KR101542659B1
公开(公告)日：2015-08-06
申请号：KR1020130087119
申请日：2013-07-24
Applicant: 성균관대학교산학협력단
IPC: H04W16/14
CPC classification number: H04W16/14 , H04W24/08 , H04W72/082
Abstract: 스펙트럼센싱을통한일차사용자의신호존재여부를결정하는방법은스펙트럼센싱구간을동일한크기를갖는복수개의서브구간으로구분하는단계, 복수개의서브구간에대해에너지검파를수행하는단계및 각서브구간에대한일차사용자의신호유무및 각서브구간에대한검정통계량을기준으로스펙트럼센싱구간에일차사용자의신호가존재하는지여부를결정하는단계를포함한다.
Abstract translation: 提供了一种频谱感测方法和一种用于频谱感测的装置。 频谱感测的方法涉及由处理器将频谱感测部分划分成具有相同大小的多个子周期，在多个子周期中的每个子周期中执行能量检测，以及确定主用户的信号是否为 基于多个子周期中的每一个中的主用户信号的存在以及多个子周期中的每一个中的每个中的测试统计量，存在于频谱感测部分中。
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公开(公告)号：KR101525931B1
公开(公告)日：2015-06-04
申请号：KR1020130087118
申请日：2013-07-24
Applicant: 성균관대학교산학협력단
CPC classification number: H04L27/2659 , H04L27/2675 , H04L27/2684
Abstract: 주파수오프셋추정방법은주기성을갖는제1 훈련심볼및 임의의제2 훈련심볼을수신하는단계, CPB(coherence phase bandwidth)를이용하여제1 훈련심볼에대한상관값을연산하는단계, 문턱값을이용하여상관값에서첫번째첨두치의위치를결정하는단계, 정수배주파수오프셋후보의크기를제1 훈련심볼의주기의수로나눈간격값을기준으로나머지첨두치의위치를결정하는단계및 CPB를이용하여제2 훈련심볼에대한상관값을연산하고, 첨두치의위치를이용하여제2 훈련심볼에대한상관값의최대값지점을주파수오프셋으로추정하는단계를포함한다.
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43.发明授权사인 위상 BOC (n,n) 신호에 대한 상관함수 생성 방법 및 사인 위상 BOC (n,n) 신호 추적 장치 有权用于SINE PHASED BOC（N，N）信号的相位BOC（N，N）相关函数和跟踪装置的生成方法
公开(公告)号：KR101475618B1
公开(公告)日：2014-12-30
申请号：KR1020130092900
申请日：2013-08-06
Applicant: 성균관대학교산학협력단
Abstract: The present invention relates to a method for generating a correlation function for a sign-phased BOC (n,n) signal. The method (500) includes the steps of: receiving, by a receiving means, a sign-phased BOC (n,n) signal (501); interpreting, by a calculation means, the sign-phased BOC (n,n) signal in multiple spherical pulse types (502); generating, by the calculation means, multiple partial correlation functions from an auto-correlation function of the sign-phased BOC (n,n) signal that is interpreted in the spherical pulse types (503); and generating, by the calculation means, a first correlation function by combining two of the partial correlation functions. The method (500) may further includes the step of generating, by the calculation means, a second correlation function by weighting combining the first correlation function and the rest of the partial correlation functions other than the two partial correlation functions (505).
Abstract translation: 本发明涉及一种用于产生符号BOC（n，n）信号的相关函数的方法。 方法（500）包括以下步骤：由接收装置接收符号BOC（n，n）信号（501）; 通过计算装置解释多个球面脉冲类型中的符号BOC（n，n）信号（502）; 通过所述计算装置从所述球面脉冲类型（503）中解释的符号BOC（n，n）信号的自相关函数产生多个部分相关函数; 以及通过组合两个所述部分相关函数，由所述计算装置产生第一相关函数。 方法（500）还可以包括通过加权组合第一相关函数和除了两个部分相关函数（505）之外的部分相关函数的其余部分，由计算装置产生第二相关函数的步骤。
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公开(公告)号：KR101475619B1
公开(公告)日：2014-12-22
申请号：KR1020130093922
申请日：2013-08-08
Applicant: 성균관대학교산학협력단
Abstract: CBOC 신호에 대한 상관함수 생성 방법(500)은 수신수단이 CBOC 신호를 수신하는 단계(501), 연산수단이 CBOC 신호의 부반송파를 4개의 부분 반송파로 해석하는 단계(502), 연산수단이 4개의 부분 반송파 각각에 대한 부분 상관을 생성하는 단계(503) 및 연산수단이 부분 상관 중 부반송파의 펄스 폭과 동일한 펄스 폭을 갖는 2 개의 부분 상관들을 조합하여 제1 상관함수를 생성하는 단계(504)를 포함한다. 나아가 CBOC 신호에 대한 상관함수 생성 방법(500)은 연산수단이 제1 상관함수 및 제1 상관함수 생성에 사용되지 않은 나머지 2 개의 부분 상관들을 조합하여 제2 상관함수를 생성하는 단계(505) 및 연산수단이 제1 상관함수와 제2 상관함수를 중첩하여 최종 상관함수를 생성하는 단계(506)를 더 포함할 수 있다.
Abstract translation: 本发明涉及一种生成CBOC信号的相关函数的方法。 方法（500）包括以下步骤：由接收装置接收CBOC信号（501）; 通过计算平均值将CBOC信号的副载波解释为四个部分载波（502）; 通过所述计算装置生成所述四个部分载波（503）的各个部分相关性; 以及通过组合具有与部分相关性（504）中的子载波的脉冲宽度相同的脉冲宽度的两个部分相关来产生第一相关函数。 此外，方法（500）可以包括以下步骤：通过组合第一相关函数和不用于生成第一相关函数的其他两个部分相关（505），通过计算装置生成第二相关函数，以及 由所述计算装置通过与所述第一相关函数和所述第二相关函数重叠来产生最终相关函数（506）。
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45.发明授权국소 신호에 기초한 ＢＯＣ 상관함수 생성 방법, ＢＯＣ 신호 추적 장치 및 이를 이용한 대역 확산 신호 수신 장치 有权基于新的局部信号生成BOC相关函数的方法，用于跟踪BOC信号和扩频信号接收系统的设备
公开(公告)号：KR101467312B1
公开(公告)日：2014-12-02
申请号：KR1020130124641
申请日：2013-10-18
Applicant: 성균관대학교산학협력단
IPC: H04B1/7085 , G01S19/24 , G01S19/35
CPC classification number: H04B1/709 , G01S19/30 , H04B1/7085 , H04B2001/70706
Abstract: According to embodiments of the present invention, a method of generating a correlation function used to track code delay phase values for local codes that are to be correlated with binary offset carrier (BOC) modulated received signals N pulses of which are continuous within one period of a spreading code chip in a spread-spectrum signal receiver system comprises the following steps: generating a pair of the local signals, g_1(t+τ;a) and g_2(t+τ;a) with a code delay phase value τ based on a pair of first and second local signals, g_1(t;a) and g_2(t;a) that are defined by the first and last pulses in a pulse train of the received signals received for one sub-carrier period of the received signals and a given main-peak shape parameter a; generating a pair of sub-correlation functions, R_1(τ;a) and R_2(τ;a) by conducting a correlation operation with the pairs of the received signals and local signals for the total time T (0
Abstract translation: 根据本发明的实施例，一种产生相关函数的方法，用于跟踪要与二进制偏移载波（BOC）调制接收信号相关的本地码的码延迟相位值，N个脉冲在其一个周期内是连续的 在扩频信号接收机系统中的扩展码芯片包括以下步骤：以代码延迟相位值τ为基础产生一对本地信号g_1（t +τ; a）和g_2（t +τ; a） 在由所接收的一个子载波周期接收到的接收信号的脉冲序列中由第一和最后脉冲定义的一对第一和第二本地信号g_1（t; a）和g_2（t; a） 信号和给定的主峰形状参数a; 通过与总时间T（0 <= t <= T）的接收信号和本地信号对进行相关运算，生成一对子相关函数R_1（τ; a）和R_2（τ; a） ）; 通过用一对子相关函数R_1（τ; a）和R_2（τ; a）进行消除运算，生成仅具有主峰的主相关函数R_proposed（τ; a）。
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Patent Agency Ranking46.发明公开
公开(公告)号：KR1020140082602A
公开(公告)日：2014-07-02
申请号：KR1020140056593
申请日：2014-05-12
Applicant: 성균관대학교산학협력단
IPC: H04L27/26
CPC classification number: H04L27/2657
Abstract: A method for estimating OFDM frequency offset based on a partial periodogram according to the present invention includes the steps of: (a) performing envelope equalized processing (EEP) as to an OFDM receiving signal; (b) estimating initial offset as to the EEP-processed receiving signal; and (c) estimating precise offset repetitively using the initial offset and the partial periodogram. Further, the method may include the step of (d) estimating residual offset repetitively in order to estimate possible offset after the precise offset estimation. Through this, the method of the present invention can perform reliable frequency offset estimation as having low computation.
Abstract translation: 根据本发明的用于估计基于部分周期图的OFDM频偏的方法包括以下步骤：（a）对OFDM接收信号执行包络均衡处理（EEP）; （b）估计关于EEP处理的接收信号的初始偏移量; 和（c）使用初始偏移和部分周期图重复地估计精确偏移。 此外，该方法可以包括以下步骤：（d）重复地估计残余偏移量，以估计精确偏移估计之后的可能偏移。 通过这样，本发明的方法可以执行可靠的频偏估计，因为计算量低。
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公开(公告)号：KR1020140073221A
公开(公告)日：2014-06-16
申请号：KR1020120141208
申请日：2012-12-06
Applicant: 성균관대학교산학협력단
IPC: H04J11/00
CPC classification number: H04L25/0238 , H04L1/0038
Abstract: According to an embodiment of the present invention, a blind OFDM frequency offset estimation method comprises the steps of (a) receiving an OFDM signal including irregular noise from an OFDM receiver; (b) applying the Cauchy distribution likelihood function to the OFDM signal and calculating the maximum likelihood estimate value; and (c) setting an initial frequency offset and estimating the final frequency offset by calculating repeatedly the maximum likelihood estimate value within a valid estimation range or comprises the step of estimating the frequency offset at a time if the valid estimation range for the maximum likelihood estimate value in the (c) step is set and the maximum likelihood estimate value is uniformly distributed in the valid estimation range.
Abstract translation: 根据本发明的实施例，盲OFDM频偏估计方法包括以下步骤：（a）从OFDM接收机接收包括不规则噪声的OFDM信号; （b）将柯西分布似然函数应用于OFDM信号并计算最大似然估计值; 并且（c）设置初始频率偏移并通过在有效估计范围内重复计算最大似然估计值来估计最终频率偏移，或包括如果对于最大似然估计值的有效估计范围估计一次的频率偏移的步骤 设置（c）步骤中的值，并且将最大似然估计值均匀地分布在有效的估计范围内。
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公开(公告)号：KR102155658B1
公开(公告)日：2020-09-15
申请号：KR1020180013182
申请日：2018-02-02
Applicant: 성균관대학교산학협력단
IPC: G01S19/30
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公开(公告)号：KR101956339B1
公开(公告)日：2019-03-08
申请号：KR1020170048346
申请日：2017-04-14
Applicant: 성균관대학교산학협력단
IPC: G01S19/30
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公开(公告)号：KR101869223B1
公开(公告)日：2018-06-19
申请号：KR1020160160992
申请日：2016-11-30
Applicant: 성균관대학교산학협력단
Abstract: AltBOC(15,10) 신호를추적하는방법은수신기가 AltBOC(15,10) 신호를수신하는단계, 상기수신기가상기 AltBOC(15,10) 신호를하나의 PN 코드칩 주기에서동일한길이로구분한 12개의부신호각각과수신한 AltBOC(15,10) 신호를상관하여 12개의부상관함수를생성하는단계. 상기수신기가상기부상관함수중 주첨두를갖고서로대칭인 2개의부상관함수를조합하여주변첨두가제거된제1 상관함수를생성하는단계, 상기수신기가상기부상관함수중 상기 2개의부상관함수를제외하고서로대칭인복수의부상관함수쌍을조합하여복수의제2 상관함수를생성하는단계, 상기복수의제2 상관함수중 어느하나와상기제1 상관함수를조합하여제3 상관함수를생성하는단계및 상기수신기가상기제3 상관함수를이용하여신호를추적하는단계를포함한다.
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