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Method and device for acquiring FIR filter design solution

A technology of filter design and acquisition method, which is applied in the field of communication, can solve problems such as signal distortion, FIR filter cannot correct group delay fluctuations, etc., and achieve the effect of reducing group delay fluctuations

Pending Publication Date: 2019-09-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Embodiments of the present invention provide a method and device for obtaining a design solution of an FIR filter, to at least solve the problem that the designed FIR filter in the related art cannot correct signal distortion caused by group delay fluctuations

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  • Method and device for acquiring FIR filter design solution
  • Method and device for acquiring FIR filter design solution
  • Method and device for acquiring FIR filter design solution

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Embodiment 1

[0026] In this embodiment, a method for obtaining an FIR filter design solution is provided, figure 1 It is a flow chart of a method for obtaining a design solution of a FIR filter according to an embodiment of the present invention, such as figure 1 As shown, the process includes the following steps:

[0027] Step S102, using the finite length unit impulse response FIR as particles to establish a particle swarm, wherein the particle swarm includes at least N particles;

[0028] Step S104, setting each FIR to learn from different canonical FIRs on each dimension of the design solution space, wherein the design solution space is composed of a plurality of tap coefficients, each tap coefficient represents one dimension, and the canonical FIR is the M FIRs satisfying the preset conditions in the particle swarm, M is less than or equal to N; M and N are positive integers;

[0029] Step S106, according to the learning result, determine the design solution of the FIR filter.

[0...

Embodiment 2

[0268] In this embodiment, a device for obtaining a design solution of an FIR filter is also provided, and the device is used to implement the above embodiments and preferred implementation modes, and those that have been explained will not be repeated here. As used below, the term "module" may be a combination of software and / or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

[0269] According to another embodiment of the present invention, there is also provided a device for obtaining the design solution of an FIR filter, and a building module, which is used to use the finite-length unit impulse response FIR as particles to establish a particle swarm, wherein the particle swarm includes at least N particles; a setting module, which is used to set each FIR to learn from ...

Embodiment 3

[0273] According to another embodiment of the present invention, a storage medium is further provided, and the storage medium includes a stored program, wherein, when the program is running, the method described in any one of the above embodiments is executed.

[0274] According to another embodiment of the present invention, there is also provided a processor, the processor is configured to run a program, wherein, when the program is running, the method described in any one of the above embodiments is executed.

[0275] According to another embodiment of the present invention, there is also provided an FIR filter, where the FIR filter is a filter designed by an FIR filter design solution obtained through the method described in any one of the above embodiments.

[0276] Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated o...

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Abstract

The invention provides a method and a device for acquiring an FIR filter design solution, and the method comprises the steps: employing a finite impulse response FIR as a particle to establish a particle swarm, wherein the particle swarm at least comprise N particles; setting that each FIR learns to different canonical FIR in each dimension of a design solution space, wherein the design solution space is composed of a plurality of tap coefficients, each tap coefficient represents one dimension, the canonical FIR is M FIR meeting a preset condition in the particle swarm, and M is smaller than or equal to N, and M and N are positive integers; and determining the design solution of the FIR filter according to the learning result. Through the method and the device, the problem that a designed FIR filter in related technologies cannot correct signal distortion caused by group delay fluctuation is solved, and the search space of CL-PSO is fully utilized, a better design solution meeting preset index requirements is found, and the swarm delay fluctuation is greatly reduced through an FIR filter which is subsequently designed.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method and device for obtaining a design solution of an FIR filter. Background technique [0002] In related technologies, there are often many analog filters in the non-baseband part of the communication system. They are filter circuits constructed of resistors, capacitors and inductors. Limited by the material level and the precision of electronic components, they cannot Digital filters can easily meet the strict linear phase requirements, which leads to the ubiquity of group delay distortion. [0003] In order to meet the ever-increasing demands of communication services, especially digital services, the bandwidth of the communication system is constantly increasing. For example, the maximum bandwidth of the E-band in the microwave system has reached 2G; and the maximum bandwidth of the fifth-generation mobile communication system 5G system It has also reached 80M. And w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06N3/00H03H17/00
CPCH03H17/00G06N3/006H03H2017/0081G06F30/36G06F30/367
Inventor 刘磊郁光辉胡留军
Owner ZTE CORP
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