Incoherent re-sampling device

A resampling and non-coherent technology, applied in the communication field, can solve the problems of fewer chips, high power consumption, and complex structure, and achieve low cost, low power consumption, and good performance.
CN102522987BInactive Publication Date: 2013-11-20NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
Publication Date
2013-11-20
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses an incoherent re-sampling device, and relates to sampling rate conversion technology in the communication field. The incoherent re-sampling device comprises a data caching unit (1), an interpolation filtering unit (2) and a clock adjustment unit (3). Different frequency control words are set and address signals sent by the clock adjustment unit are utilized to search the temporal relation between input samples and output samples, and the sampling rate conversion purpose is realized after interpolation filtering. As the re-sampling and low-pass filtering integrated design is adopted, compared with the traditional realization method of re-sampling technology, the incoherent re-sampling device provided by the invention has the advantages of easiness in realization, stable and reliable performance, non-linear distortion prevention and the like, and is particularly suitable for input and output sampling rate conversion in a communication system.
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Description

technical field

[0001] The invention relates to a non-coherent resampling device in the field of communication, and is especially suitable for transforming the sampling rate in the communication system. Background technique

[0002] Sampling rate conversion is a method to change the processing rate of digital signals. It plays an important role in communication engineering. When there are multiple communication rates or different sources of processing clocks in the system, the rate can be normalized through sampling rate conversion. In the previous design, the sampling rate conversion can only be realized by analog components composed of AD and DA or a dedicated chip, which has a complex structure, high power consumption, and fewer chips that can be selected. Using non-coherent digital resampling technology to realize the conversion of various communication rates has important application value. Contents of the invention

[0003] The object of the present invention is to ...

Claims

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