Sparse coefficient FIR filter design method, sparse coefficient FIR filter, equipment and medium

Abstract

The invention discloses a design method of a sparse coefficient FIR filter, the sparse coefficient FIR filter, terminal equipment and a computer readable storage medium. The method comprises the following steps: decomposing a single-stage sparse coefficient FIR filter into two son sparse coefficient FIR filters at two stages; performing optimization solution on the coefficients of the son sparse coefficient FIR filters to obtain an optimal sparse solution; designing the sparse coefficient FIR filter according to the optimal sparse solution, and applying the sparse coefficient FIR filter to anapplication-specific integrated circuit digital signal processing system. According to the invention, the number of multipliers and adders introduced by the FIR filter is reduced to the greatest extent, the circuit design complexity is reduced, the performance of the FIR filter is comprehensively improved, and the designed FIR filter can meet the design requirements of a high-performance application-specific integrated circuit digital signal processing system.

Description

technical field [0001] The invention relates to the technical field of communication and digital signal processing, in particular to a design method of a sparse coefficient FIR filter, a sparse coefficient FIR filter, a terminal device and a computer-readable storage medium. Background technique [0002] FIR (Finite Impulse Response: finite impulse response) filter is a digital filter whose unit impulse response h(n) is not zero only at a limited number of n values. Compared with the corresponding IIR digital filter, its The complexity of circuit implementation is obviously high. Therefore, how to reduce the circuit design complexity of the FIR filter and improve the overall performance, so that the FIR filter can also meet the requirements of high-performance ASIC (Application Specific Integrated Circuit: Application Specific Integrated Circuit) digital signal processing The design requirements of the system have always been the development direction of the industry's hard ...

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Problems solved by technology

[0004] The main purpose of the present invention is to propose a design method of a sparse coefficient FIR filter, a sparse coefficient FIR filter, a terminal device, and a computer-readable storage medium, aiming at solving the design mode of the existing FIR filter. The degree of improvement is limited, so that the complexity of circuit design cannot be effectively reduced, and it is difficult to meet the technical problems of high-performance ASIC digital signal processing system design requirements

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