A signal processing system and signal processing method

Abstract

A signal processing system comprises a hardware filter and a digital filter unit, wherein the digital filter unit is realized based on a digital processor, and comprises a data cache area for acquiring data from the hardware filter, a data filter processing unit for calling the data in the data cache area and carrying out digital filter processing on the data, and a proportional operation unit for calling each piece of data of the data filter processing unit for proportional operation; and the data filter processing unit comprises at least two filter units adopting different filter algorithms. According to the signal processing method, multiple different signal filter methods are adopted to carry out signal processing on the same group of signals, results are integrated, proportional operation is carried out, and a final signal processing result is acquired. The signal processing system and the signal processing method provided by the invention are low in cost, strong in applicability and high in signal processing precision.

Description

technical field [0001] The invention belongs to the technical field of signal processing, and relates to a signal processing system and a signal processing method. Background technique [0002] The strength of the signal has a certain degree of influence on the difficulty of signal processing. During the process of signal acquisition and transmission, many factors will affect the signal, such as: (1) noise sources, which are many and unavoidable, and it is impossible to completely remove them; (2) signal transmission attenuation, such as optical signals, transmission The farther the distance, the more serious the signal attenuation; (3) Signal attenuation caused by signal acquisition or detection components, etc. [0003] Among them, the processing of weak signals is more difficult than the processing of high-intensity signals. The reason is that weak signals are more likely to be disturbed by noise or submerged, and are easier to attenuate; take the signal acquisition of o...

AI Technical Summary

Problems solved by technology

During the process of signal acquisition and transmission, many factors will affect the signal, such as: (1) noise sources, which are many and unavoidable, and it is impossible to completely remove them; (2) signal transmission attenuation, such as optical signals, transmission The farther the distance, the more serious the signal attenuation; (3) Signal attenuation caused by signal acquisition or detection components, etc.

[0003] Among them, the processing of weak signals is more difficult than the processing of high-intensity signals. The reason is that weak signals are more likely to be disturbed by noise or submerged, and are easier to attenuate; take the signal acquisition of optical fiber sensors as an example. Parts, especially the connection of optical devices, as well as the refraction and reflection of optical signals during the measurement process, will cause signal attenuation. optical signal

The above reasons will lead to low transmission accuracy of weak signals; the measurement system cannot obtain the actual measured value, etc.

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