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Adaptive frequency coding method and apparatus

A frequency coding and self-adaptive technology, applied in the field of signal processing, can solve the problems of resource and time consumption, small coding value, large coding value, etc., and achieve the effect of reducing resource and time consumption and improving coding accuracy

Active Publication Date: 2016-08-03
SHENZHEN YIHUA COMP +2
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  • Application Information

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Problems solved by technology

However, in the prior art, when the frequency of the frequency signal is high, the encoding value may be very small, which will reduce the encoding accuracy of the FPGA; when the frequency of the frequency signal is low, the encoding value may be very large, and when data transmission and processing Will increase the consumption of resources and time

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Embodiment 1

[0020] figure 1 The implementation flow of the adaptive frequency coding method provided by Embodiment 1 of the present invention is shown, and the implementation flow is described in detail as follows:

[0021] In step S101, edge detection is performed on the frequency signal through a clock signal to obtain the period of the frequency signal;

[0022] In the embodiment of the present invention, the frequency signal is a periodic square wave signal, and the edge detection includes but not limited to rising edge detection and falling edge detection.

[0023] In the embodiment of the present invention, the frequency signal is input into the FPGA, and the clock signal output by the FPGA clock management module is used to perform rising edge detection or falling edge detection on the frequency signal, so as to obtain the period of the frequency signal, The period of the frequency signal is the time elapsed between two adjacent rising edges or two adjacent falling edges.

[0024...

Embodiment 2

[0040] figure 2 A schematic diagram of the composition of the adaptive frequency coding device provided by Embodiment 2 of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0041] The detection module 21 is configured to perform edge detection on the frequency signal through the clock signal, so as to obtain the period of the frequency signal;

[0042] In the embodiment of the present invention, the frequency signal is a periodic square wave signal, and the edge detection includes but not limited to rising edge detection and falling edge detection.

[0043] In the embodiment of the present invention, the frequency signal is input into the FPGA, and the clock signal output by the FPGA clock management module is used to perform rising edge detection or falling edge detection on the frequency signal, so as to obtain the period of the frequency signal, ...

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Abstract

The invention, which belongs to the technical field of signal processing, provides an adaptive frequency coding method and apparatus. The method comprises: edge detection is carried out on a frequency signal by a clock signal so as to obtain the period of the frequency signal; statistics of the number M of the clock signals within the N periods of the frequency signal is carried out, wherein the M and the N are integers larger than zero; if the number M of the clock signals is not equal to S*N, the frequency signal is processed, statistics of the number of the clock signals within one period of the processed frequency signal is carried out and the number is used as a coding value; or the clock signals are processed, and statistics of the number of the processed clock signals within one period of the frequency signal is carried out, and the number is used as a coding value, wherein the S is an integer larger than 1. With the method and apparatus, the coding value can be kept to be in a reasonable range, so that the coding precision is improved and resources and time consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of signal processing, and in particular relates to an adaptive frequency encoding method and device. Background technique [0002] At present, the frequency encoding technology is usually implemented by using a Field Programmable Gate Array (Field Programmable Gate Array, FPGA), and the number of clock signals within one cycle of the frequency signal is used as an encoding value in the FPGA. However, in the prior art, when the frequency of the frequency signal is high, the encoding value may be very small, which will reduce the encoding accuracy of the FPGA; when the frequency of the frequency signal is low, the encoding value may be very large, and when data transmission and processing It will increase the consumption of resources and time. [0003] Therefore, it is necessary to propose a new technical solution to solve the above technical problems. Contents of the invention [0004] In view of this, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M5/10
CPCH03M5/10
Inventor 董扬辉
Owner SHENZHEN YIHUA COMP
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