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All-in-one vector network analyzer and testing method for data domain analysis

A technology of vector network analysis and data domain, which is applied in the field of high-speed data transmission testing, can solve problems such as non-integration, and achieve the effects of improving accuracy, reducing complexity, and reducing costs

Active Publication Date: 2020-09-01
CHINA ELECTRONIS TECH INSTR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this solution is not an integrated solution, requiring multiple instruments and software to complete the entire test

Method used

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  • All-in-one vector network analyzer and testing method for data domain analysis
  • All-in-one vector network analyzer and testing method for data domain analysis
  • All-in-one vector network analyzer and testing method for data domain analysis

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Embodiment Construction

[0034] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0035] Such as figure 1 As shown, the integrated vector network analyzer for data domain analysis includes a signal source, a directional coupler, a coaxial connector, a sampling head, a mixer and an intermediate frequency receiver, and a switch is connected to the coaxial connector, The directional coupler or sampling head is selected to be connected through the switch, and the intermediate frequency switch is connected to the intermediate frequency receiver, and the mixer or sampling connector is selected to be connected through the intermediate frequency switch. The mixer is connected to the local oscillator, and the local oscillator is connected to the sampling head. same time base.

[0036] The network analyzer includes a frequency domain parameter test mode and a time domain parameter test mode. During the test, firs...

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Abstract

The invention discloses an integrated vector network analyzer for data domain analysis and a test method of the integrated vector network analyzer, and particularly relates to the technical field of high-speed data transmission test. The test method of the integrated vector network analyzer comprises the steps that a hardware architecture of an existing vector network analyzer is expanded, and a sampling head, pulse generation and the like are additionally arranged for completing time-domain characteristic test of a high-speed data transmission system; firstly, a data domain code pattern is obtained according to a code pattern generating algorithm, an input signal of the high-speed data transmission system is obtained according to rising and falling time, data transmission rate and other parameter interpolation, then interpolation of amplitude and phase is carried out on network parameters in a frequency domain by using an interpolation algorithm, and analysis and compensation with passivity, causality and symmetry are carried out on the obtained network parameters by the interpolation; after the above steps are completed, convolution is carried out on the input signal and the network parameters after the compensation to obtain time-domain response of the system, time-domain characteristics such as eye pattern and shaking of a system receiving end are obtained through further analysis, and an analysis process from a time domain and the frequency domain to the data domain is completed.

Description

technical field [0001] The invention relates to the technical field of high-speed data transmission testing, in particular to an integrated vector network analyzer for data domain analysis and a testing method thereof. Background technique [0002] In the test of high-speed data transmission system, the vector network analyzer is mainly used for the frequency domain characteristic test of components such as connectors, cables and backplanes in the system, and the oscilloscope is mainly used for the waveform, eye diagram, jitter and time domain reflection of the system Isochronous domain characteristic test. Traditionally, to complete the entire test of the system, engineers need to use multiple instruments to repeatedly connect the DUT multiple times at the same time, the operation is complicated and the test accuracy is low. [0003] With the rapid development of emerging technologies such as fifth-generation mobile communication, Internet of Things, artificial intelligenc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G06F17/14
CPCG01R31/00G06F17/142
Inventor 年夫顺袁国平梁胜利刘丹李树彪庄志远杨明飞
Owner CHINA ELECTRONIS TECH INSTR CO LTD
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