公开(公告)号：EP3070850B1

公开(公告)日：2019-07-17

申请号：EP14862342.4

申请日：2014-11-13

申请人： Nippon Hoso Kyokai

发明人： SUZUKI, Youichi ,  HASHIMOTO, Akinori ,  TANAKA, Shoji ,  TSUCHIDA, Kenichi ,  KIMURA, Takeshi ,  MATSUSAKI, Yoshifumi

IPC分类号： H03M13/11 ,  H03M13/03 ,  H03M13/25 ,  H03M13/29 ,  H03M13/15

公开(公告)号：EP0940957B1

公开(公告)日：2008-01-02

申请号：EP98943037.6

申请日：1998-09-18

申请人： NIPPON HOSO KYOKAI

发明人： SHIBUYA, Kazuhiko ,  KUMADA, Junji ,  IWADATE, Yuichi ,  HAMAZUMI, Hiroyuki ,  NOMOTO, Toshihiro ,  TAKANO, Kouichi ,  SAITO, Tomohiro ,  TANAKA, Shoji ,  MINEMATSU, Fumiaki ,  HASHIMOTO, Akinori ,  ITOH, Shigeyuki ,  MATSUMURA, Hajime ,  KATOH, Hisakazu ,  TAKECHI, Masaru

IPC分类号： H04L27/22 ,  H04N5/455 ,  H04L27/227

CPC分类号： H03J7/02 ,  H04L27/22 ,  H04L2027/0057 ,  H04N5/4401 ,  H04N5/455 ,  H04N5/50

摘要： A carrier reproducing circuit which can stably reproduce carriers even when the CN ratio is low by measuring the phase of a signal by only using such a period that the multi-valued number is few and controlling a VCO or NCO (numerically controlled oscillator). At the time of reproducing the carriers, the occurrence of a pseudo-synchronous phenomenon is avoided in such a way that rough AFC is performed by inserting SYNC which is modulated with an already known pattern and has a relatively short length into modulated waves and the oscillation frequency of the VCO or NCO is swept over a wide range, and then, the sweeping is stopped at a frequency at which the SYNC is received. In addition, the period of a few multi-valued number having a certain degree of length is provided in the modulated waves and the difference between the frequency of received modulated signals and that of the local oscillation signal of the VCO or NCO in the period is determined, and then, the frequency difference is analyzed by using the phase differential function method, autocorrelation function method, or count method, etc., and the VCO or NCO is controlled based on the results of the analysis.

公开(公告)号：EP3070897B1

公开(公告)日：2019-01-09

申请号：EP14861337.5

申请日：2014-11-13

申请人： Nippon Hoso Kyokai

发明人： SUZUKI, Youichi ,  HASHIMOTO, Akinori ,  TANAKA, Shoji ,  TSUCHIDA, Kenichi ,  KIMURA, Takeshi ,  MATSUSAKI, Yoshifumi

IPC分类号： H04L1/00 ,  H03M13/19 ,  H03M13/25 ,  H04L27/18 ,  H04L27/34 ,  H03M13/11 ,  H03M13/15 ,  H04L27/36 ,  H04L27/38

公开(公告)号：EP2129070B1

公开(公告)日：2018-12-26

申请号：EP08711845.1

申请日：2008-02-22

申请人： Nippon Hoso Kyokai

发明人： HASHIMOTO, Akinori ,  SUZUKI, Yoichi ,  SHOGEN, Kazuyoshi ,  TANAKA, Shoji ,  SUJIKAI, Hisashi

IPC分类号： H04L27/38 ,  H04J3/00 ,  H04L5/00 ,  H04L27/26 ,  H04L27/34 ,  H04L1/00 ,  H04L27/00

CPC分类号： H04L27/38 ,  H04L1/0045 ,  H04L1/0071 ,  H04L5/0048 ,  H04L27/2657 ,  H04L27/34 ,  H04L2027/0024 ,  H04L2027/0067

摘要： To provide a digital data transmitting apparatus and a digital data receiving apparatus that can realize, even when a transmission channel characteristic changes because of aged deterioration or the like of a relay, improvement of a reception performance following the change. A transmitting apparatus 1 generates a multiplexing frame formed by N slots including control information, data, outer parities, stuff bits, and inner parities and added with synchronization, pilot, and a transmission control signal and a parity and transmits data of the respective slots in a transmission system designated by the transmission control signal. In this case, pilot signals are symbols allocated to all signal points in order determined in advance for each of modulation schemes. A receiving apparatus 2 rewrites a phase error table 214 to calculate a phase error and performs synchronous detection according to the pilot signals. The receiving apparatus 2 also rewrites a likelihood table 235 to perform inner code decoding. Consequently, since reception processing adapted to distortion of a transmission channel characteristic can be performed, improvement of a reception performance can be realized.

公开(公告)号：EP3070897A1

公开(公告)日：2016-09-21

申请号：EP14861337.5

申请日：2014-11-13

申请人： Nippon Hoso Kyokai

发明人： SUZUKI, Youichi ,  HASHIMOTO, Akinori ,  TANAKA, Shoji ,  TSUCHIDA, Kenichi ,  KIMURA, Takeshi ,  MATSUSAKI, Yoshifumi

IPC分类号： H04L27/00 ,  H03M13/19 ,  H03M13/25 ,  H04L27/18

CPC分类号： H04L1/0041 ,  H03M13/1102 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2906 ,  H03M13/616 ,  H04B7/18523 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0071 ,  H04L27/34 ,  H04L27/3405 ,  H04L27/3444 ,  H04L27/36 ,  H04L27/38

摘要： A modulator, demodulator, transmission device, and reception device for digital data that have excellent resistance to noise are provided. A modulator according to one aspect of this disclosure includes a modulation mapper (15) that performs 16APSK mapping at a radius ratio of 2.87 when the LDPC code rate is 93/120. A modulator according to another aspect of this disclosure includes a modulation mapper (15) that performs 32APSK mapping at a second inner circle to first inner circle radius ratio of 2.87 and an outer circle to first inner circle radius ratio of 5.33 when the LDPC code rate is 93/120. The modulator is included in a transmission device (1) according to this disclosure. A demodulator according to this disclosure includes a quadrature detector (21) that performs demodulation corresponding to the modulator. The demodulator is included in a reception device (2) according to this disclosure.

摘要翻译： 提供了具有优异的抗噪声性的调制器，解调器，传输设备和用于数字数据的接收设备。 根据本公开的一个方面的调制器包括当LDPC码率为93/120时以2.87的半径比进行16APSK映射的调制映射器（15）。 根据本发明的另一方面的调制器包括：调制映射器（15），其在第二内圆周期处执行32APSK映射，第二内圆半径比为2.87，外圆至第一内圆半径比为5.33，当LDPC码率 是93/120。 调制器包括在根据本公开的传输设备（1）中。 根据本公开的解调器包括执行与调制器相对应的解调的正交检测器（21）。 解调器包括在根据本公开的接收装置（2）中。

公开(公告)号：EP3070850A1

公开(公告)日：2016-09-21

申请号：EP14862342.4

申请日：2014-11-13

申请人： Nippon Hoso Kyokai

发明人： SUZUKI, Youichi ,  HASHIMOTO, Akinori ,  TANAKA, Shoji ,  TSUCHIDA, Kenichi ,  KIMURA, Takeshi ,  MATSUSAKI, Yoshifumi

IPC分类号： H03M13/19 ,  H03M13/25 ,  H03M13/27

CPC分类号： H03M13/1177 ,  H03M13/036 ,  H03M13/1102 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2792 ,  H03M13/2906 ,  H03M13/616 ,  H03M13/6356 ,  H04L1/00 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071

摘要： A transmission device and reception device for digital data that have excellent resistance to noise are provided. An encoder (11-1) of this disclosure, included in a transmission device (1) of this disclosure, applies LDPC encoding to digital data using a unique check matrix for each code rate by using a check matrix in which, taking a check matrix initial value table established in advance for each code rate at a code length of 44880 bits as initial values, 1 entries of a partial matrix corresponding to an information length appropriate for a code rate of 93/120 are allocated in the column direction over a cycle of 374 columns. A demodulator (23) of this disclosure, included in a reception device (2) of this disclosure, decodes digital data encoded by the encoder (11-1).

摘要翻译： 提供了具有优异的耐噪声性的用于数字数据的传输装置和接收装置。 包含在本公开的发送装置（1）中的本公开的编码器（11-1）使用对于每个码率的唯一校验矩阵，使用校验矩阵对LDPC数字数据应用LDPC编码，其中，采用校验矩阵 以44880位的代码长度作为初始值的每个代码率预先建立的初始值表，对应于93/120码率的信息长度的部分矩阵的1个条目在一个周期的列方向上被分配 的374列。 包含在本公开的接收装置（2）中的本公开的解调器（23）对由编码器（11-1）编码的数字数据进行解码。

公开(公告)号：EP2129070A1

公开(公告)日：2009-12-02

申请号：EP08711845.1

申请日：2008-02-22

申请人： Nippon Hoso Kyokai

发明人： HASHIMOTO, Akinori ,  SUZUKI, Yoichi ,  SHOGEN, Kazuyoshi ,  TANAKA, Shoji ,  SUJIKAI, Hisashi

IPC分类号： H04L27/38

CPC分类号： H04L27/38 ,  H04L1/0045 ,  H04L1/0071 ,  H04L5/0048 ,  H04L27/2657 ,  H04L27/34 ,  H04L2027/0024 ,  H04L2027/0067

摘要： To provide a digital data transmitting apparatus and a digital data receiving apparatus that can realize, even when a transmission channel characteristic changes because of aged deterioration or the like of a relay, improvement of a reception performance following the change.
A transmitting apparatus 1 generates a multiplexing frame formed by N slots including control information, data, outer parities, stuff bits, and inner parities and added with synchronization, pilot, and a transmission control signal and a parity and transmits data of the respective slots in a transmission system designated by the transmission control signal. In this case, pilot signals are symbols allocated to all signal points in order determined in advance for each of modulation schemes. A receiving apparatus 2 rewrites a phase error table 214 to calculate a phase error and performs synchronous detection according to the pilot signals. The receiving apparatus 2 also rewrites a likelihood table 235 to perform inner code decoding. Consequently, since reception processing adapted to distortion of a transmission channel characteristic can be performed, improvement of a reception performance can be realized.

摘要翻译： 提供一种数字数据发送装置及数字数据接收装置确实能够实现，即使因老化劣化等的中继的传输信道特性的变化，接收性能改善继变化。 发送装置1基因速率由N个时隙包含控制信息，数据，外奇偶校验，填充比特，和内部奇偶校验位形成，并且与同步，导频和传输控制信号和奇偶校验，并发送数据的respectivement槽加入复用帧 由传输控制信号所指定的传输系统。 在这种情况下，导频信号是在顺序确定的提前开采为每个调制方案的分配给所有信号点的码元。 一种接收装置2改写的相位误差表214，以计算相位误差，并执行同步检测gemäß到导频信号。 接收设备2从而重写一个似然度表235进行帧内码解码。 因此，由于接收处理angepasst到传输信道特性的失真，可以执行的接收性能的改善得以实现。

公开(公告)号：EP0940957A1

公开(公告)日：1999-09-08

申请号：EP98943037.6

申请日：1998-09-18

申请人： NIPPON HOSO KYOKAI

发明人： SHIBUYA, Kazuhiko ,  KUMADA, Junji ,  IWADATE, Yuichi ,  HAMAZUMI, Hiroyuki ,  NOMOTO, Toshihiro ,  TAKANO, Kouichi ,  SAITO, Tomohiro ,  TANAKA, Shoji ,  MINEMATSU, Fumiaki ,  HASHIMOTO, Akinori ,  ITOH, Shigeyuki ,  MATSUMURA, Hajime ,  KATOH, Hisakazu ,  TAKECHI, Masaru

IPC分类号： H04L27/22 ,  H04N5/455

CPC分类号： H03J7/02 ,  H04L27/22 ,  H04L2027/0057 ,  H04N5/4401 ,  H04N5/455 ,  H04N5/50

摘要： Stabilized carrier recovery is acheived even at the time of a low C/N ratio by measuring the phase of a signal and controlling VCO or NCO (Numerical Controlled Oscillator) using only a period having few constellation points. At this time, false lock phenomenon is avoided as follows. That is, relatively short SYNC modulated by an already-known pattern is entered into a modulation wave, VCO or NCO oscillation frequency is swept in a wide range and sweep is stopped at a frequency in which the SYNC can be received, thereby carrying out coarse control AFC. Further, a period having long to some extent, having few constellation points is provided in the modulation wave and then, a difference between the frequency of a received modulated signal and a local oscillation signal of VCO or NCO is obtained in this period. This frequency difference is analyzed according to the phase differential function method, self-correlation function method or count method, and the VCO or NCO is controlled based on this result of analysis.

摘要翻译： 即使在C / N比较低的时候，通过测量信号的相位并且仅使用具有很少星座点的周期来控制VCO或NCO（数控振荡器），稳定的载波恢复也是可以实现的。 此时，如下所示避免假锁现象。 也就是说，通过已知的模式调制的相对较短的SYNC被输入到调制波中，VCO或NCO振荡频率在宽范围内被扫描，并且在可以接收SYNC的频率上停止扫描，从而执行粗略 控制AFC。 此外，在调制波中提供了具有很少的星座点的长时间段，然后在该周期中获得接收到的调制信号的频率与VCO或NCO的本地振荡信号之间的差。 根据相位差函数法，自相关函数法或计数法对该频差进行分析，并根据该分析结果对VCO或NCO进行控制。