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FPGA time-delay device and method

A delay device and delay time technology, applied in the field of signal processing, can solve problems such as increasing cost and increasing hardware complexity

Active Publication Date: 2017-06-13
上海星秒光电科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this can improve the accuracy of the delay time, it adds multiple high-precision delay chips, which increases the hardware complexity and increases the cost.

Method used

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] The embodiment of the present invention provides a FPGA delay device 10, such as figure 1 As shown, the FPGA delay device 10 includes a delay adjustment module 11 and a measurement module 12, wherein,

[0029] The delay adjustment module 11 is configured to delay or advance the first signal according to the delay time.

[0030] The measurement module 12 is connected with the delay adjustment module 11, and the measurement module 12 is used to determine...

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Abstract

The invention discloses a FPGA time-delay device and method, and relates to the technical field of signal processing. The low cost and the low hardware complexity can be ensured, and at the same time, and the accuracy of time delaying and the accuracy of time interval measurement are improved. The FPGA time-delay device includes a time-delay adjustment module and a measurement module, wherein the time-delay adjustment module is used for delaying or advancing a first signal according to delayed time; the time-delay adjustment module and the measurement module are connected, the measurement module is used for determining a specified time interval, and the specified time interval refers to a time interval from the moment when the first signal exists after being adjusted by the time-delay adjustment module to the starting moment, corresponding to the period of the adjusted first signal, of a second signal, wherein the second signal is a periodic signal. The device and the method are suitable for signal time delaying.

Description

technical field [0001] The present application relates to the field of signal processing, in particular to an FPGA delay device and method. Background technique [0002] In the fields of quantum communication, optical fiber sensing, satellite positioning, laser ranging, etc., measuring time interval and delay has universal applications. When the time interval between multiple measured signals is different from the time interval required by the user, the time interval between the signals can be adjusted by delaying to make the adjusted time interval meet the time interval required by the user, and then The time interval between the adjusted multiple signals is measured (that is, the specified time interval), so as to monitor the adjusted multiple signals. For example, the user expects the signal receiving end to receive the second signal first and then the first signal, and there is a certain time interval between the moment of receiving the second signal and the moment of r...

Claims

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257
Inventor 张帅陈杰
Owner 上海星秒光电科技有限公司