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DSP based frame loss detection method and system

A detection system and frame loss technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve problems such as oscilloscope human errors, and achieve the effect of a convenient detection method

Inactive Publication Date: 2018-04-17
BEIJING INST OF REMOTE SENSING EQUIP
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a DSP-based frame loss detection method and system to solve the problem that manual observation oscilloscopes easily introduce human errors in the past

Method used

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  • DSP based frame loss detection method and system

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Effect test

Embodiment 1

[0015] A kind of concrete steps of the frame loss detection method based on DSP are:

[0016] The first step of frame loss detection

[0017] DSP compares the data sent by a combination of frequency sources with the original data every time it receives a group of frequency sources. When the received data is consistent with the original data, the DSP generates an interrupt, and the counter is accumulated and the interrupt is cleared. When the received data is inconsistent with the original data, no interrupt is generated and the counter is not accumulated.

[0018] The second step of frame loss analysis

[0019] Stop the frequency source combination, compare the number of frames sent by the frequency source combination with the accumulated value of the DSP counter, and when the values ​​are consistent, it is determined that there is no frame loss; when the accumulated value of the DSP counter is less than the number of frames sent by the frequency source, it is determined that...

Embodiment 2

[0021] A DSP-based frame loss detection system includes: a frequency source combination, an instruction data processing combination and a DSP frame loss detection module. The frequency source combination is connected with the instruction data processing combination, and the instruction data processing combination is connected with the DSP frame loss detection module. Among them, the function of frequency source combination is to generate modulation signal; the function of command data processing combination is to demodulate modulation signal; the function of DSP frame loss detection module is to detect and analyze the frame loss of demodulated data.

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Abstract

The invention discloses a DSP based frame loss detection method and system. Data received by a DSP from a frequency source combination is compared with original data, the DSP is interrupted when the received data is consistent with the original data, and the number of frames emitted by the frequency source combination is compared with an accumulated value of a counter of the DSP; when the number of frames is consistent with the accumulated value, it is determined that there is no frame loss; and when the accumulated value of the counter is lower than the number of frame, it is determined thatframe loss occurs. The method and system can be used to solve the problems that a tester who observe an oscilloscope for a long time tends to make errors and the frame loss rate cannot be analyzed quantitatively; and a convenient detection method is provided for product debugging.

Description

technical field [0001] The invention relates to a frame loss detection method and system, in particular to a DSP-based frame loss detection method and system. Background technique [0002] At present, the method of detecting frame loss during the communication process of the transponder is to send the demodulated identification signal to the oscilloscope, and judge whether the frame is lost by observing whether there is a signal gap in the refresh process of the oscilloscope. In practical applications, it is necessary to observe the oscilloscope for a long time, which is easy to cause visual fatigue and introduce human error, which brings a lot of workload and inconvenience. The use of DSP, that is, digital signal processors to assist frame loss detection can solve this problem very well. Contents of the invention [0003] The purpose of the present invention is to provide a DSP-based frame loss detection method and system, which solves the problem that manual observation...

Claims

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Application Information

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IPC IPC(8): H04L12/26
Inventor 高彦强刘志哲赵晨旭刘宝光
Owner BEIJING INST OF REMOTE SENSING EQUIP
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