System and method for realizing multi-channel signal analysis synchronization and delay correction

A signal analysis and multi-channel technology, applied in the direction of communication channel monitoring, etc., can solve the problems of low efficiency, achieve the effect of simple system connection and test, reduce hardware complexity, and reduce test cost
CN104618042BActive Publication Date: 2017-03-29TRANSCOM INSTR
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
TRANSCOM INSTR
Publication Date
2017-03-29

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Abstract

The invention relates to a system and a method for realizing multi-channel signal analysis synchronization and time delay adjustment. The system comprises a plurality of radio frequency channel units, a plurality of base band processing units, a plurality of data storage units and a precision synchronization unit, wherein the radio frequency channel units respectively correspond to channels; each radio frequency channel unit is used for converting a radio frequency input signal of the corresponding channel into an intermediate frequency signal with a fixed frequency and carrying out digital conversion; the base band processing units respectively correspond to the channels; each base band processing unit is used for carrying out digital signal demodulation, compensation of group delay and time delay error adjustment among the channels on an output signal of the corresponding radio frequency channel unit; the data storage units respectively correspond to the channels; the precision synchronization unit is used for carrying out time delay control on signals of the base band processing units. The system and the method for realizing multi-channel signal analysis synchronization and time delay adjustment, which adopt the structure, realize the requirement for synchronization of multi-channel testing on single equipment, improve the confidence level of multi-channel signal analysis, reduce hardware complexity and have a wider application range.
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Description

technical field

[0001] The present invention relates to the field of communication technology, in particular to the field of signal synchronization technology, in particular to a system and method for realizing multi-channel signal analysis synchronization and delay correction. Background technique

[0002] With the development of digital cellular communication technology, in order to improve the system data rate and capacity under the limited spectrum resources, multi-antenna MIMO (Multiple-Input Multiple-Output, multiple-input multiple-output technology) technology has been widely adopted. In LTE- In the Advanced standard, the downlink supports up to 8ร—8 multi-antenna configuration. In view of the fact that the complexity of the MIMO system is increasing day by day, the related test methods and equipment will also become more challenging, and higher requirements are placed on new test equipment in terms of test difficulty, test cost and test efficiency.

[0003] First of ...

Claims

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