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1. 发明申请

US20100322366A1 METHOD FOR DETECTING FRAME SYNCHRONIZATION AND STRUCTURE IN DVB-S2 SYSTEM 失效
标题翻译：检测DVB-S2系统中帧同步和结构的方法
公开(公告)号：US20100322366A1
公开(公告)日：2010-12-23
申请号：US12518103
申请日：2007-10-30
申请人： Pan-Soo Kim , Dae-lg Chang , Deock-Gil Oh , Seokheon Kang , Deokchang Kang , Wonjin Sung
发明人： Pan-Soo Kim , Dae-lg Chang , Deock-Gil Oh , Seokheon Kang , Deokchang Kang , Wonjin Sung
IPC分类号： H04L7/04
CPC分类号： H04L27/2656 , H04L7/042 , H04L27/2675
摘要： Provided is a method for detecting frame sync and frame structure in a satellite broadcasting system, which acquires an estimated value for detecting frame structure and frame sync and overcomes distortion of correlation analysis values by summing differential correlation values for SOF positions in consideration of the variable frame length, and selecting a maximum value in a channel environment with low signal-to-noise ratio and high frequency error. SOF is a sync word indicating the start point of a frame. The method includes the steps of: acquiring SOF differential correlation value sequences; acquiring sums (di,t) of the correlation values normalized for SOF positions based on the number of symbols per frame by using the above-generated SOF differential correlation value sequences; and selecting a maximum value (dz,x) among the sums of correlation values, detecting z as a frame sync position, and detecting x as a frame structure index.
摘要翻译：提供了一种用于检测卫星广播系统中的帧同步和帧结构的方法，其获取用于检测帧结构和帧同步的估计值，并通过将SOF位置的差分相关值相加考虑到可变帧来克服相关分析值的失真长度，并在低信噪比和高频误差的信道环境中选择最大值。 SOF是指示帧起始点的同步字。该方法包括以下步骤：获取SOF差分相关值序列; 通过使用上述生成的SOF差分相关值序列，基于每帧的符号数，获取针对SOF位置归一化的相关值的和（di，t）并且选择相关值之和中的最大值（dz，x），检测z作为帧同步位置，并且检测x作为帧结构索引。

2. 发明授权

US08422604B2 Method for detecting frame synchronization and structure in DVB-S2 system 失效
标题翻译： DVB-S2系统帧同步和结构检测方法
公开(公告)号：US08422604B2
公开(公告)日：2013-04-16
申请号：US12518103
申请日：2007-10-30
申请人： Pan-Soo Kim , Dae-Ig Chang , Deock-Gil Oh , Seokheon Kang , Deokchang Kang , Wonjin Sung
发明人： Pan-Soo Kim , Dae-Ig Chang , Deock-Gil Oh , Seokheon Kang , Deokchang Kang , Wonjin Sung
IPC分类号： H03D1/00
CPC分类号： H04L27/2656 , H04L7/042 , H04L27/2675
摘要： Provided is a method for detecting frame sync and frame structure in a satellite broadcasting system, which acquires an estimated value for detecting frame structure and frame sync and overcomes distortion of correlation analysis values by summing differential correlation values for SOF positions in consideration of the variable frame length, and selecting a maximum value in a channel environment with low signal-to-noise ratio and high frequency error. SOF is a sync word indicating the start point of a frame. The method includes the steps of: acquiring SOF differential correlation value sequences; acquiring sums (di,t) of the correlation values normalized for SOF positions based on the number of symbols per frame by using the above-generated SOF differential correlation value sequences; and selecting a maximum value (dz,x) among the sums of correlation values, detecting z as a frame sync position, and detecting x as a frame structure index.
摘要翻译：提供了一种用于检测卫星广播系统中的帧同步和帧结构的方法，其获取用于检测帧结构和帧同步的估计值，并通过将SOF位置的差分相关值相加考虑到可变帧来克服相关分析值的失真长度，并在低信噪比和高频误差的信道环境中选择最大值。 SOF是指示帧起始点的同步字。该方法包括以下步骤：获取SOF差分相关值序列; 通过使用上述生成的SOF差分相关值序列，基于每帧的符号数，获取针对SOF位置归一化的相关值的和（di，t）并且选择相关值之和中的最大值（dz，x），检测z作为帧同步位置，并且检测x作为帧结构索引。

3. 发明申请

US20070150796A1 Decoding method for detecting PLSC from frames of satellite broadcasting system 有权
标题翻译：用于从卫星广播系统的帧中检测PLSC的解码方法
公开(公告)号：US20070150796A1
公开(公告)日：2007-06-28
申请号：US11442363
申请日：2006-05-26
申请人： Pan-Soo Kim , Dae-Ig Chang , In-Ki Lee , Tae-Hoon Kim , Deock-Gil Oh , Wonjin Sung , Seokheon Kang , Deokchang Kang
发明人： Pan-Soo Kim , Dae-Ig Chang , In-Ki Lee , Tae-Hoon Kim , Deock-Gil Oh , Wonjin Sung , Seokheon Kang , Deokchang Kang
IPC分类号： H03M13/00
CPC分类号： H04L1/0045 , H03M13/136 , H03M13/15 , H03M13/6561 , H04H40/90 , H04L1/0057 , H04L1/0072 , H04L1/08
摘要： Provided is a decoding method for detecting Physical Layer Signaling Codes (PLSCs) from frames of a satellite broadcasting system. The method includes: a) acquiring a summation vector and a subtraction vector from an inputted symbol vector; b) performing parallel Reed-Muller (32,6) decoding onto the summation and subtraction vectors based on a Hadamard matrix and estimating message bits of the summation and subtraction vectors; c) performing PLSC coding and modulation onto the message bits of the summation and subtraction vectors; d) calculating a first difference between symbols of the received symbol vector and the summation vector symbols, and a second difference between the symbols of the received symbol vector and the subtraction vector symbols; and e) when the first difference is smaller than the second difference, determining a Reed-Muller codeword is repeated, or when the first difference is larger than the second difference, determining that the Reed-Muller codeword is inverted.
摘要翻译：提供了一种从卫星广播系统的帧中检测物理层信令码（PLSC）的解码方法。该方法包括：a）从输入的符号向量获取求和向量和减法向量; b）基于Hadamard矩阵对求和和减法向量执行并行Reed-Muller（32,6）解码并估计求和和减法向量的消息比特; c）对求和和减法向量的消息比特执行PLSC编码和调制; d）计算接收的符号向量和求和向量符号的符号之间的第一差值，以及接收到的符号向量和减法向量符号的符号之间的第二差值; 以及e）当第一差小于第二差时，重复确定里德 - 穆勒码字，或者当第一差大于第二差时，确定里德 - 穆勒码字被反转。

4. 发明申请

US20070133727A1 Frame synchronization method based on differential correlation information in satellite communication system 失效
公开(公告)号：US20070133727A1
公开(公告)日：2007-06-14
申请号：US11442447
申请日：2006-05-26
申请人： Pan-Soo Kim , In-Ki Lee , Tae-Hoon Kim , Dae-Ig Chang , Deock-Gil Oh , Wonjin Sung , Deokchang Kang , Seokheon Kang
发明人： Pan-Soo Kim , In-Ki Lee , Tae-Hoon Kim , Dae-Ig Chang , Deock-Gil Oh , Wonjin Sung , Deokchang Kang , Seokheon Kang
IPC分类号： H04L7/00 , H04B1/00 , H04J3/06
CPC分类号： H04J3/0608 , H04B7/2125
摘要： Provided is a frame synchronization method for synchronizing frames with pilot blocks added thereto based on differential correlation information in a satellite communication system. The method can acquire a highly reliable frame synchronization estimation value by achieving a multi-step threshold value test using pilot blocks after a correlation analysis and a threshold test based on a sync signal in order to resolve the problem of a low signal-to-noise ratio and a large frequency error and acquire highly reliable frame synchronization performance, and can overcome distortion of a correlation analysis value caused by the frequency error by analyzing correlation based on differential information. The method includes the steps of: a) performing correlation analysis and a threshold test by using a sync word; and b) performing a multi-step correlation value test by using the pilot blocks added to the frames prior to the sync word.

5. 发明授权

US07587653B2 Decoding method for detecting PLSC from frames of satellite broadcasting system 有权
标题翻译：用于从卫星广播系统的帧中检测PLSC的解码方法
公开(公告)号：US07587653B2
公开(公告)日：2009-09-08
申请号：US11442363
申请日：2006-05-26
申请人： Pan-Soo Kim , Dae-Ig Chang , In-Ki Lee , Tae-Hoon Kim , Deock-Gil Oh , Wonjin Sung , Seokheon Kang , Deokchang Kang
发明人： Pan-Soo Kim , Dae-Ig Chang , In-Ki Lee , Tae-Hoon Kim , Deock-Gil Oh , Wonjin Sung , Seokheon Kang , Deokchang Kang
IPC分类号： H03M13/05
CPC分类号： H04L1/0045 , H03M13/136 , H03M13/15 , H03M13/6561 , H04H40/90 , H04L1/0057 , H04L1/0072 , H04L1/08
摘要： Provided is a decoding method for detecting Physical Layer Signaling Codes (PLSCs) from frames of a satellite broadcasting system. The method includes: a) acquiring a summation vector and a subtraction vector from an inputted symbol vector; b) performing parallel Reed-Muller (32,6) decoding onto the summation and subtraction vectors based on a Hadamard matrix and estimating message bits of the summation and subtraction vectors; c) performing PLSC coding and modulation onto the message bits of the summation and subtraction vectors; d) calculating a first difference between symbols of the received symbol vector and the summation vector symbols, and a second difference between the symbols of the received symbol vector and the subtraction vector symbols; and e) when the first difference is smaller than the second difference, determining a Reed-Muller codeword is repeated, or when the first difference is larger than the second difference, determining that the Reed-Muller codeword is inverted.
摘要翻译：提供了一种从卫星广播系统的帧中检测物理层信令码（PLSC）的解码方法。该方法包括：a）从输入的符号向量获取求和向量和减法向量; b）基于Hadamard矩阵对求和和减法向量执行并行Reed-Muller（32,6）解码并估计求和和减法向量的消息比特; c）对求和和减法向量的消息比特执行PLSC编码和调制; d）计算接收的符号向量和求和向量符号的符号之间的第一差值，以及接收到的符号向量和减法向量符号的符号之间的第二差值; 以及e）当第一差小于第二差时，重复确定里德 - 穆勒码字，或者当第一差大于第二差时，确定里德 - 穆勒码字被反转。

6. 发明授权

US07308064B2 Frame synchronization method based on differential correlation information in satellite communication system 失效
标题翻译：基于卫星通信系统差分相关信息的帧同步方法
公开(公告)号：US07308064B2
公开(公告)日：2007-12-11
申请号：US11442447
申请日：2006-05-26
申请人： Pan-Soo Kim , In-Ki Lee , Tae-Hoon Kim , Dae-Ig Chang , Deock-Gil Oh , Wonjin Sung , Deokchang Kang , Seokheon Kang
发明人： Pan-Soo Kim , In-Ki Lee , Tae-Hoon Kim , Dae-Ig Chang , Deock-Gil Oh , Wonjin Sung , Deokchang Kang , Seokheon Kang
IPC分类号： H04L7/00
CPC分类号： H04J3/0608 , H04B7/2125
摘要： Provided is a frame synchronization method for synchronizing frames with pilot blocks added thereto based on differential correlation information in a satellite communication system. The method can acquire a highly reliable frame synchronization estimation value by achieving a multi-step threshold value test using pilot blocks after a correlation analysis and a threshold test based on a sync signal in order to resolve the problem of a low signal-to-noise ratio and a large frequency error and acquire highly reliable frame synchronization performance, and can overcome distortion of a correlation analysis value caused by the frequency error by analyzing correlation based on differential information. The method includes the steps of: a) performing correlation analysis and a threshold test by using a sync word; and b) performing a multi-step correlation value test by using the pilot blocks added to the frames prior to the sync word.
摘要翻译：提供了一种帧同步方法，用于基于卫星通信系统中的差分相关信息来将帧与其添加的导频块同步。该方法可以通过在相关分析和基于同步信号的阈值测试之后使用导频块实现多步阈值测试来获得高度可靠的帧同步估计值，以便解决低信噪比的问题比例大，频率误差大，获得高可靠性的帧同步性能，可以通过分析基于差分信息的相关性来克服由频率误差引起的相关分析值的失真。该方法包括以下步骤：a）通过使用同步字执行相关分析和阈值测试; 以及b）通过使用添加到同步字之前的帧的导频块来执行多步相关值测试。

7. 发明申请

US20100007743A1 FRAME SYNCHRONIZATION AND STRUCTURE DETECTION METHOD IN DVB-S2 SYSTEM 失效
标题翻译： DVB-S2系统中的帧同步和结构检测方法
公开(公告)号：US20100007743A1
公开(公告)日：2010-01-14
申请号：US12518242
申请日：2007-10-31
申请人： Pan-Soo Kim , Dae-Ig Chang , Deock-Gil Oh , Sangtae Kim , Seokheon Kang , Wonjin Sung
发明人： Pan-Soo Kim , Dae-Ig Chang , Deock-Gil Oh , Sangtae Kim , Seokheon Kang , Wonjin Sung
IPC分类号： H04N17/00
CPC分类号： H04N21/4382 , H04H40/90 , H04L7/042 , H04L27/2656 , H04N7/20 , H04N21/238 , H04N21/2383 , H04N21/242 , H04N21/6143
摘要： Provided is a method for detecting frame sync and frame structure in a satellite broadcasting system. The method for detecting frame sync and frame structure includes the steps of: calculating differential correlation values of reception symbols; generating index sequences of reception symbols whose differential correlation values calculated above exceed a threshold value; calculating positions estimated as frame start points which correspond to a total frame number based on the number of symbols per frame for each frame structure; and detecting frame sync and frame structure based on the umber of positions where the above-calculated frame start point estimated positions and the above-generated index sequences are matched.
摘要翻译：提供了一种用于在卫星广播系统中检测帧同步和帧结构的方法。用于检测帧同步和帧结构的方法包括以下步骤：计算接收符号的差分相关值; 产生上述计算出的差分相关值的接收符号的索引序列超过阈值; 基于每个帧结构的每个符号的数量，计算估计为与总帧数相对应的帧起始点的位置; 以及基于上述计算出的帧起始点估计位置和上述生成的索引序列匹配的位置的数量来检测帧同步和帧结构。

8. 发明授权

US08085818B2 Frame synchronization and structure detection method in DVB-S2 system 失效
标题翻译： DVB-S2系统中的帧同步和结构检测方法
公开(公告)号：US08085818B2
公开(公告)日：2011-12-27
申请号：US12518242
申请日：2007-10-31
申请人： Pan-Soo Kim , Dae-Ig Chang , Deock-Gil Oh , Sangtae Kim , Seokheon Kang , Wonjin Sung
发明人： Pan-Soo Kim , Dae-Ig Chang , Deock-Gil Oh , Sangtae Kim , Seokheon Kang , Wonjin Sung
IPC分类号： H04J3/06
CPC分类号： H04N21/4382 , H04H40/90 , H04L7/042 , H04L27/2656 , H04N7/20 , H04N21/238 , H04N21/2383 , H04N21/242 , H04N21/6143
摘要： Provided is a method for detecting frame sync and frame structure in a satellite broadcasting system. The method for detecting frame sync and frame structure includes the steps of: calculating differential correlation values of reception symbols; generating index sequences of reception symbols whose differential correlation values calculated above exceed a threshold value; calculating positions estimated as frame start points which correspond to a total frame number based on the number of symbols per frame for each frame structure; and detecting frame sync and frame structure based on the umber of positions where the above-calculated frame start point estimated positions and the above-generated index sequences are matched.
摘要翻译：提供了一种用于在卫星广播系统中检测帧同步和帧结构的方法。用于检测帧同步和帧结构的方法包括以下步骤：计算接收符号的差分相关值; 产生上述计算出的差分相关值的接收符号的索引序列超过阈值; 基于每个帧结构的每个符号的数量，计算估计为与总帧数相对应的帧起始点的位置; 以及基于上述计算出的帧起始点估计位置和上述生成的索引序列匹配的位置的数量来检测帧同步和帧结构。

9. 发明申请

US20120147939A1 SIGNAL DEMODULATION METHOD AND APPARATUS AND SIGNAL MODULATION METHOD AND APPARATUS IN RETURN LINK OF SATELLITE SYSTEM 失效
标题翻译：卫星系统返回链路信号解调方法及装置及信号调制方法及装置
公开(公告)号：US20120147939A1
公开(公告)日：2012-06-14
申请号：US13314770
申请日：2011-12-08
申请人： Jae-Hee HAN , Pan-Soo Kim , Deock-Gil Oh , Xavier Giraud
发明人： Jae-Hee HAN , Pan-Soo Kim , Deock-Gil Oh , Xavier Giraud
IPC分类号： H04L7/00 , H04L1/00
CPC分类号： H04B7/2125 , H04B7/18589 , H04L7/04 , H04L2027/0024 , H04L2027/0067 , H04L2027/0079 , H04L2027/0095
摘要： A technology for modulating and demodulating a burst signal in a return link of a satellite system, in which the burst signal is modulated and transmitted from a transmission end of the return link and a symbol of the burst signal is identified and demodulated at a receiving end. The method includes estimating symbol timing of a burst received through the return link and synchronizing the estimated symbol timing of the burst to reference symbol timing; synchronizing a location of the timing-synchronized burst having the symbol timing synchronized to a location of a reference burst using a preamble symbol and a post-amble symbol of the timing-synchronized burst; and recovering a carrier of the location-synchronized burst whose location has been synchronized to the location of the reference burst using a pilot symbol of the location-synchronized burst.
摘要翻译：一种用于调制和解调卫星系统的返回链路中的突发信号的技术，其中突发信号从返回链路的发送端被调制和发送，并且在接收端被识别和解调。该方法包括估计通过返回链路接收的脉冲串的符号定时，并将脉冲串的估计符号定时与参考符号定时同步; 使用前导码符号和定时同步脉冲串的后导码符号来将具有与参考突发的位置同步的符号定时的定时同步突发的位置同步; 以及使用位置同步突发的导频符号来恢复其位置已被同步到参考突发的位置的位置同步突发的载波。

10. 发明授权

US08699628B2 Signal demodulation method and apparatus and signal modulation method and apparatus in return link of satellite system 失效
标题翻译：卫星系统回波信号解调方法及装置及信号调制方法及装置
公开(公告)号：US08699628B2
公开(公告)日：2014-04-15
申请号：US13314770
申请日：2011-12-08
申请人： Jae-Hee Han , Pan-Soo Kim , Deock-Gil Oh , Xavier Giraud
发明人： Jae-Hee Han , Pan-Soo Kim , Deock-Gil Oh , Xavier Giraud
IPC分类号： H04L27/00
CPC分类号： H04B7/2125 , H04B7/18589 , H04L7/04 , H04L2027/0024 , H04L2027/0067 , H04L2027/0079 , H04L2027/0095
摘要： A technology for modulating and demodulating a burst signal in a return link of a satellite system, in which the burst signal is modulated and transmitted from a transmission end of the return link and a symbol of the burst signal is identified and demodulated at a receiving end. The method includes estimating symbol timing of a burst received through the return link and synchronizing the estimated symbol timing of the burst to reference symbol timing; synchronizing a location of the timing-synchronized burst having the symbol timing synchronized to a location of a reference burst using a preamble symbol and a post-amble symbol of the timing-synchronized burst; and recovering a carrier of the location-synchronized burst whose location has been synchronized to the location of the reference burst using a pilot symbol of the location-synchronized burst.
摘要翻译：一种用于调制和解调卫星系统的返回链路中的突发信号的技术，其中突发信号从返回链路的发送端被调制和发送，并且在接收端被识别和解调。该方法包括估计通过返回链路接收的脉冲串的符号定时，并将脉冲串的估计符号定时与参考符号定时同步; 使用前导码符号和定时同步脉冲串的后导码符号来将具有与参考突发的位置同步的符号定时的定时同步突发的位置同步; 以及使用位置同步突发的导频符号来恢复其位置已被同步到参考突发的位置的位置同步突发的载波。

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