公开(公告)号：US20060269004A1

公开(公告)日：2006-11-30

申请号：US11286947

申请日：2005-11-22

申请人： Brima Ibrahim ,  Hea Kim ,  Bojko Marholey

发明人： Brima Ibrahim ,  Hea Kim ,  Bojko Marholey

IPC分类号： H04K1/10

CPC分类号： H04L25/03159 ,  H04L27/14 ,  H04L27/34 ,  Y02D70/14

摘要： A method and system for digital spur cancellation may include removing a spur in a left channel minus right channel (L−R) baseband signal generated from a FM signal. The L−R baseband signal may be generated by demodulating a sub-carrier, for example, by using CORDIC algorithm, in a signal demodulated from the FM signal. An orthogonal signal may also be generated by demodulating a sub-carrier, for example, by using CORDIC algorithm, in a signal demodulated from the FM signal. The phase of the orthogonal signal may be further adjusted to introduce a substantially −90° phase shift to spurs at a specific frequency. Accordingly, the spurs in the L−R baseband signal may be cancelled when the first L−R baseband signal is combined with the phase adjusted orthogonal signal.

摘要翻译： 用于数字支线消除的方法和系统可以包括去除左声道中的杂音减去从FM信号产生的右声道（L-R）基带信号。 可以通过使用CORDIC算法在从FM信号解调的信号中解调副载波来生成L-R基带信号。 也可以通过使用CORDIC算法在从FM信号解调的信号中解调副载波来产生正交信号。 可以进一步调整正交信号的相位以便以特定频率引入基本上-90°的相移来刺激。 因此，当第一L-R基带信号与相位调整的正交信号组合时，可以消除L-R基带信号中的杂散。

公开(公告)号：US08116401B2

公开(公告)日：2012-02-14

申请号：US11286947

申请日：2005-11-22

申请人： Brima Ibrahim ,  Hea Joung Kim ,  Bojko Marholey

发明人： Brima Ibrahim ,  Hea Joung Kim ,  Bojko Marholey

IPC分类号： H04L27/10

CPC分类号： H04L25/03159 ,  H04L27/14 ,  H04L27/34 ,  Y02D70/14

摘要： A method and system for digital spur cancellation may include removing a spur in a left channel minus right channel (L−R) baseband signal generated from a FM signal. The L−R baseband signal may be generated by demodulating a sub-carrier, for example, by using CORDIC algorithm, in a signal demodulated from the FM signal. An orthogonal signal may also be generated by demodulating a sub-carrier, for example, by using CORDIC algorithm, in a signal demodulated from the FM signal. The phase of the orthogonal signal may be further adjusted to introduce a substantially −90° phase shift to spurs at a specific frequency. Accordingly, the spurs in the L−R baseband signal may be cancelled when the first L−R baseband signal is combined with the phase adjusted orthogonal signal.

摘要翻译： 用于数字支线消除的方法和系统可以包括去除左声道中的杂音减去从FM信号产生的右声道（L-R）基带信号。 可以通过使用CORDIC算法在从FM信号解调的信号中解调副载波来生成L-R基带信号。 也可以通过使用CORDIC算法在从FM信号解调的信号中解调副载波来产生正交信号。 可以进一步调整正交信号的相位以便以特定频率引入基本上-90°的相移来刺激。 因此，当第一L-R基带信号与相位调整的正交信号组合时，可以消除L-R基带信号中的杂散。