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Method, device and system for controlling interpolation filter output

A technology of interpolation filter and output control, which is applied in the field of communication, and can solve the problems that interpolation filtering results cannot be processed, interpolation filtering output interval cannot be controlled, etc.

Active Publication Date: 2013-06-26
亚太卫星宽带通信(深圳)有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] Aiming at the problem in the prior art that the output interval of the interpolation filter cannot be controlled (for example, the output interval is too short), resulting in the hardware being unable to process the interpolation filter result, the present invention provides an interpolation filter output control method, device and system , to at least solve the above problem

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  • Method, device and system for controlling interpolation filter output
  • Method, device and system for controlling interpolation filter output

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Embodiment Construction

[0026] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0027] In this embodiment, a method for controlling the output of an interpolation filter is provided, figure 1 is a flowchart of an interpolation filter output control method according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0028] Step S102, obtain the distance m between the current two adjacent interpolation reference points k ;

[0029] Step S104, judge the m k is less than or equal to the first predetermined value, at which m k If it is less than or equal to the first predetermined value, the m k set to a second predetermined value, wherein the second predetermined value is greater than the first predetermined value; ...

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Abstract

The invention discloses a method, device and system for controlling an interpolation filter output. The method comprises the steps of acquiring a distance mk between existing adjacent two interpolation datum points; judging whether the mk is smaller or equal to a first preset value, wherein the mk is set to be a second preset value when the mk is smaller or equal to the first preset value, and the second preset value is larger than the first preset value; and controlling the interpolation filter output according to a fractional interval muk between the second preset value and the interpolation datum points and insertion points. The problem that an output interval of an interpolation filter in the prior art cannot be controlled (for example, the output interval is too short), and accordingly interpolation filtering results cannot be processed through hardware is solved, effective control of the output interval of the interpolation filter can be further achieved, and the hardware performing follow-up processing can smoothly process the interpolation filter output.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, device and system for controlling the output of an interpolation filter. Background technique [0002] In a wireless communication system, due to factors such as temperature, humidity, and device aging, there is a deviation between the clock of the device and the nominal clock. In related technologies, the use of figure 1 structure in to extract timing error information, figure 1 is a framework diagram for extracting timing error information in related technologies, such as figure 1 As shown, the block diagram includes interpolation filter, timing error estimation, loop filtering and interpolation controller. The interpolation controller generates an interpolation reference point and a fractional interval between the interpolation reference point and the interpolation point. In this algorithm, there will be: the situation that two consecutive interpolation referenc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H17/02
Inventor 高晓莹刘向宇罗淑芬李长兴
Owner 亚太卫星宽带通信(深圳)有限公司
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