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Signal processing method and device

A signal processing and signal technology, applied in the field of communication, can solve problems such as the inability to guarantee the performance and complexity of the SFT algorithm

Inactive Publication Date: 2019-02-12
NANJING ADVANCED BIOLOGICAL MATERIALS & PROCESS EQUIP INST CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a signal processing method and device to solve the problem that the performance and complexity of the SFT algorithm cannot be guaranteed in the prior art

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Embodiment Construction

[0100] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0101] figure 1 It is a flowchart of a signal processing method provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the signal processing method of this embodiment may include the following steps:

[0102] Step S100 , according to the set quantization error, reconstruction error rate and complexity parameters, det...

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Abstract

The invention provides a signal processing method and device. The signal processing method comprises the following steps: according to a set quantization error, a set reconstruction error rate and a set complexity parameter, determining a decay rate relevant parameter, an initial packet number relevant parameter and a quantization error relevant parameter of a frequency domain window function sidelobe, wherein the quantization error is generated after a signal to be processed is quantized, and the reconstruction error rate is an error probability obtained in a way that the signal to be processed is completely recovered to a quantization signal in a transform domain after the signal to be processed is transformed; and according to the decay rate relevant parameter, the initial packet number relevant parameter and the quantization error relevant parameter of the frequency domain window function sidelobe, transforming the signal to be processed. The technical scheme provided by the embodiment of the invention can guarantee the performance and the complexity of sparse Fourier transform and sparse Fourier inverse transform

Description

technical field [0001] The present invention relates to communication technology, in particular to a signal processing method and device. Background technique [0002] Fourier transform and inverse Fourier transform are a traditional method of analyzing and processing signals. In many audio and video signals, the meaningful signal is usually only a small part of the signal. In technical terms, this information is "sparse". Utilizing the characteristics of this sparse signal, a sparse Fourier transform (Sparse Fourier transform, SFT for short) can be performed on the signal to further speed up the Fourier transform or inverse Fourier transform. [0003] However, in the SFT calculation process adopted in the signal processing process of the prior art, parameters such as the attenuation speed of the side lobe of the frequency domain window function, the number of initial groups, and the quantization error are randomly selected, so the performance of the SFT algorithm cannot be...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/14
Inventor 张阳王悦
Owner NANJING ADVANCED BIOLOGICAL MATERIALS & PROCESS EQUIP INST CO LTD