Time digital converter based on RPGA and its conversion method

A time-to-digital conversion and time-to-digital technology, which is applied in the direction of electrical unknown time interval measurement, devices and instruments for measuring time interval, etc., can solve the problems of inability to design and manufacture TDC chips to meet the needs, high cost, high cost performance, flexible interface, Flexible channel count effects

Inactive Publication Date: 2006-01-11
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the cost of research and development is relatively high. On the other hand, with the limited level of the electronics industry, it is impossible to design and manufacture suitable TDC chips that meet the needs.

Method used

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  • Time digital converter based on RPGA and its conversion method
  • Time digital converter based on RPGA and its conversion method
  • Time digital converter based on RPGA and its conversion method

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0032] like figure 1 As shown, the time-to-digital converter of the present invention includes a fine time measurement unit, a coding unit, a coarse time measurement unit and a data buffer unit, and the above units are all implemented in FPGA.

[0033] The fine time measurement unit uses multi-bit adders or addition and carry primitives to cascade the dedicated carry lines in the FPGA to form a time delay line. Here, it is necessary to set the corresponding compilation and synthesis options in the design software of the FPGA supplier, such as in Xilinx In the company's ISE integration software, set the Optimization Goal option under the Synthesize-XST attribute to Area, etc. Field programmable logic device FPGA is more and more widely used in modern electronic design, its performance is improving day by day, and its price is also gradually falling. It is widely used ...

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Abstract

The present invention relates to a time/digital converter based on FPGA and its conversion method, belonging to the field of time measurement technology. Said converter includes the following components: fine time measurement unit, coding unit, coarse time measurement unit and data buffer storage unit. The main application of said invention is to make high accuracy time measurement, it can be used in the fields of basis research and various application researches.

Description

technical field [0001] The invention belongs to a time measurement device, in particular to a time measurement device realized by a field programmable logic device FPGA. Background technique [0002] Precise time not only plays an important role in basic research fields such as geodynamics research, relativity research, pulsar period research and artificial satellite dynamics and geodesy, but also plays an important role in such fields as aerospace, deep space communication, satellite launch and monitoring, geological surveying and mapping. , Navigation and communication, power transmission and scientific metrology and other applied research, national defense and national economic construction are also widely used, and have even penetrated into all aspects of people's social life, almost everywhere. Of course, for daily life, the concept of time is generally accurate to the minute. However, in many applications such as high-precision instruments, physical experiments, and n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04F10/00G04F10/04G05B19/05
Inventor 宋健安琪刘树彬
Owner UNIV OF SCI & TECH OF CHINA
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