公开(公告)号：EP0855792B1

公开(公告)日：2003-08-13

申请号：EP98850010.4

申请日：1998-01-20

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON

Inventor： Erhage, Lars ,  Erikmats, Östen ,  Rizell, Svenolov ,  Karlsson, Hakan

IPC: H03B23/00 ,  H03L7/00

CPC classification number: G01S7/4008 ,  G01S13/282 ,  G01S13/34 ,  H03B23/00 ,  H03C3/08 ,  H03L7/02

公开(公告)号：EP0855792A1

公开(公告)日：1998-07-29

申请号：EP98850010.4

申请日：1998-01-20

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON

Inventor： Erhage, Lars ,  Erikmats, Östen ,  Rizell, Svenolov ,  Karlsson, Hakan

IPC: H03B23/00 ,  H03L7/00

CPC classification number: G01S7/4008 ,  G01S13/282 ,  G01S13/34 ,  H03B23/00 ,  H03C3/08 ,  H03L7/02

Abstract: The present invention relates to methods and devices for such control and supervision of an oscillator signal from a controllable oscillator that is done mainly to control the frequency variation of the oscillator signal. According to the invention, the controllable oscillator is controlled by a controlling voltage, which in turn is modified by a correction signal, generated in a control loop. A time discrete representation of a secondary phase is generated in the control loop, the secondary phase corresponding to a frequency being the difference between the frequency of the oscillator signal and a constant frequency. A time discrete approximation signal is generated in dependence of the time discrete representation of the secondary phase. A time discrete error signal is generated in dependence of the time discrete approximation signal, the time discrete error signal indicating the difference between the actual frequency slope of the oscillator signal and a desired frequency slope. The correction signal is generated in dependence of the time discrete error signal. The control loop can also be adaptive, meaning that data from one control sequence is being used in a later control sequence.

Abstract translation: 本发明涉及用于控制和监视来自可控振荡器的振荡器信号的方法和装置，主要用于控制振荡器信号的频率变化。 根据本发明，可控振荡器由控制电压控制，控制电压又由在控制回路中产生的校正信号进行修改。 在控制回路中产生次相位的时间离散表示，对应于频率为振荡器信号的频率与恒定频率之间的差的次级相位。 根据次级相位的时间离散表示产生时间离散近似信号。 根据时间离散近似信号产生时间离散误差信号，时间离散误差信号表示振荡器信号的实际频率斜率与期望频率斜率之间的差异。 根据时间离散误差信号产生校正信号。 控制回路也可以是自适应的，这意味着来自一个控制序列的数据正在以后的控制序列中使用。