CN111766452A - Transient high-frequency pulse waveform capturing system and method - Google Patents
Transient high-frequency pulse waveform capturing system and method Download PDFInfo
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Abstract
The invention provides a transient high-frequency pulse waveform capturing system and a transient high-frequency pulse waveform capturing method, and relates to the field of pulse testing. The transient high-frequency pulse waveform capturing system comprises a front-end circuit, a first trigger circuit, a second trigger circuit, a sampling circuit and a data processing module, wherein the front-end circuit is respectively connected with the first trigger circuit, the second trigger circuit and the sampling circuit, and the data processing module is respectively connected with the first trigger circuit, the second trigger circuit and the sampling circuit. According to the technical scheme, the upward transient pulse and the downward transient pulse are synchronously detected through the upper threshold limit and the lower threshold limit, the influence of the transient high-frequency pulse on the components is effectively discriminated, the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Description
Technical Field
The invention relates to the technical field of pulse testing, in particular to a transient high-frequency pulse waveform capturing system and a transient high-frequency pulse waveform capturing method.
Background
In a single-particle irradiation test system, a single-threshold double-edge triggering mode is adopted in the prior art, the single-threshold double-edge triggering mode can process high-frequency signals, but the direction of a waveform must be known in advance, so that the single-threshold double-edge triggering mode has uncertainty for testing transient accidental signals.
Disclosure of Invention
The invention solves the problem that the test of transient accidental signals by a single-threshold double-edge triggering mode has uncertainty.
In order to solve the above problems, the present invention provides a transient high-frequency pulse waveform capturing system, which includes a front-end circuit, a first trigger circuit, a second trigger circuit, a sampling circuit, and a data processing module, wherein the front-end circuit is connected to the first trigger circuit, the second trigger circuit, and the sampling circuit, respectively, and the data processing module is connected to the first trigger circuit, the second trigger circuit, and the sampling circuit, respectively; the front-end circuit is used for adjusting an input signal to enable the adjusted input signal to meet the processing requirement of a subsequent circuit; the first trigger circuit is used for setting an upper threshold limit and detecting transient pulses which exceed the upper threshold limit upwards relative to a calibration zero value; the second trigger circuit is used for setting a lower threshold limit and detecting transient pulses which exceed the lower threshold limit downwards relative to a calibration zero value; the sampling circuit is used for sampling the input signal; the data processing module is used for outputting sampling results according to output signals of the first trigger circuit and the second trigger circuit.
According to the transient high-frequency pulse waveform capturing system, the upward transient pulse and the downward transient pulse are synchronously detected through the upper threshold limit and the lower threshold limit, the influence of the transient high-frequency pulse on components is effectively discriminated, so that a circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
The invention also provides a transient high-frequency pulse waveform capturing method, which comprises the following steps: adjusting an input signal by a front-end circuit; setting an upper threshold limit through a first trigger circuit, and detecting an upward transient pulse; setting a lower threshold limit through a second trigger circuit, and detecting a downward transient pulse; sampling the input signal by a sampling circuit; and outputting a sampling waveform according to the output signal of the first trigger circuit and the output signal of the second trigger circuit through a data processing module.
According to the transient high-frequency pulse waveform capturing method, the upward transient pulse and the downward transient pulse are synchronously detected through the upper threshold limit and the lower threshold limit, the influence of the transient high-frequency pulse on components is effectively discriminated, so that a circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Preferably, the adjusting the input signal by the front-end circuit specifically includes: the front-end circuit scales and shapes the input signal to enable the input signal to be processed by the first trigger circuit, the second trigger circuit, the sampling circuit, and the data processing module.
According to the transient high-frequency pulse waveform capturing method, the input signal can be processed by the first trigger circuit, the second trigger circuit, the sampling circuit and the data processing module through the arrangement of the front-end circuit, the effective degree of capturing the transient high-frequency pulse waveform is effectively improved, the influence of the transient high-frequency pulse on components is effectively screened, a circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Preferably, the output signal of the first trigger circuit and the output signal of the second trigger circuit include a synchronous trigger signal, and the data processing module outputs a sampling waveform according to the synchronous trigger signal.
According to the transient high-frequency pulse waveform capturing method, the first trigger circuit and the second trigger circuit are arranged for synchronous triggering, so that the upper threshold and the lower threshold can be detected simultaneously, the influence of the transient high-frequency pulse on components can be effectively discriminated, a circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Preferably, the first trigger circuit and the second trigger circuit generate the synchronous trigger signal for marking the position of the detected transient pulse signal.
According to the transient high-frequency pulse waveform capturing method, the position of the transient pulse signal is directly reflected on the corresponding oscillogram by marking the position of the transient pulse signal, so that the influence of the transient high-frequency pulse on components is effectively discriminated, a circuit system can operate in a safer environment, and the stability and reliability of the circuit system are effectively guaranteed.
Preferably, the upper threshold set by the first trigger circuit and the lower threshold set by the second trigger circuit are also used to determine a calibration zero value.
According to the transient high-frequency pulse waveform capturing method, the calibration zero value is determined through the upper threshold limit and the lower threshold limit, and the position of the transient pulse signal is directly reflected on the corresponding oscillogram, so that the influence of the transient high-frequency pulse on components is effectively discriminated, a circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Preferably, the sampling module samples the input signal, and specifically includes: high-speed sampling and low-speed sampling; when the high-speed sampling is adopted, a high-frequency transformer is used for coupling to obtain a high-frequency signal waveform; when the low-speed sampling is adopted, the complete waveform is obtained by adopting direct coupling.
According to the transient high-frequency pulse waveform capturing method, the precision of high-frequency components is improved through high-speed sampling and low-speed sampling, so that the influence of the transient high-frequency pulses on components is effectively discriminated, a circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Preferably, the sampling module samples the input signal, and specifically includes: and separating high-frequency components from low-frequency components by adopting a transformer coupling and filter coupling mode.
According to the transient high-frequency pulse waveform capturing method, the high-frequency component and the low-frequency component are separated in a transformer coupling and filter coupling mode, so that the precision of the high-frequency component is improved, the influence of the transient high-frequency pulse on components is effectively discriminated, a circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Preferably, the sampling module samples the input signal, and specifically further includes: and adjusting the high-frequency component and the low-frequency component to a preset range by using an independent program-controlled attenuation network, synchronously sampling by using a dual-channel high-speed AD converter, and combining the high-frequency component and the low-frequency component in the signal processing process.
According to the transient high-frequency pulse waveform capturing method, the precision of high-frequency components is improved through high-speed sampling and low-speed sampling, so that the influence of the transient high-frequency pulses on components is effectively discriminated, a circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Preferably, the transient high-frequency pulse waveform capturing method further includes: and when the upper threshold or the lower threshold is triggered, the data processing module records, processes and outputs the data acquired by the sampling circuit.
According to the transient high-frequency pulse waveform capturing method, when the upper threshold or the lower threshold is set for triggering, the data processing module records, processes and outputs the data acquired by the sampling circuit, so that the influence of the transient high-frequency pulse on the components is effectively discriminated, the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Drawings
FIG. 1 is a diagram of a transient high frequency pulse waveform capture system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of sampling according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In a single-particle irradiation test system, the waveform of a transient signal generated by a single particle generally includes a single-particle transient effect SET, a single-particle current transient effect and the like, and appears as a transient peak or a transient recess on a direct current signal, but the direction of the waveform is uncertain, and the time of the waveform is uncertain, so that the capture of the transient signal waveform is difficult.
In a conventional electronic system, a plurality of disturbance sources of transient high-frequency pulses exist, or signals of certain components in the system are distorted due to external triggering to generate transient high-frequency pulses, the pulses seriously affect the normal operation of the system and even cause the system to crash, and the waveform of the disturbance sources is consistent with the transient signal property of the single-particle irradiation test system and is represented as waveform uncertainty and time uncertainty.
The existing technology has the defects that a single-threshold double-edge triggering mode is adopted, high-frequency signals can be processed, but the premise is that the direction of a waveform must be known in advance, and the test of transient accidental signals can only depend on probability. The method adopts a double-threshold triggering mode to be compatible with the traditional triggering mode downwards, captures the transient high-frequency pulse waveform which is difficult to capture or identify by adopting a simple method, and solves the measurement problem of a transient high-frequency signal system by processing and analyzing signals; meanwhile, the method has strong inclusiveness on measurement of transient accidental signals, and has quite wide application occasions including space flight, aviation, electric power, detection and the like.
As shown in fig. 1, the present invention provides a transient high-frequency pulse waveform capturing system, which includes a front-end circuit, a first trigger circuit, a second trigger circuit, a sampling circuit, and a data processing module, wherein the front-end circuit is connected to the first trigger circuit, the second trigger circuit, and the sampling circuit, respectively, and the data processing module is connected to the first trigger circuit, the second trigger circuit, and the sampling circuit, respectively; the front-end circuit is used for adjusting an input signal to enable the adjusted input signal to meet the processing requirement of a subsequent circuit; the first trigger circuit is used for setting an upper threshold limit and detecting transient pulses which exceed the upper threshold limit upwards relative to a calibration zero value; the second trigger circuit is used for setting a lower threshold limit and detecting transient pulses which exceed the lower threshold limit downwards relative to a calibration zero value; the sampling circuit is used for sampling the input signal; the data processing module is used for outputting sampling results according to output signals of the first trigger circuit and the second trigger circuit.
Specifically, in this embodiment, with reference to fig. 1 and fig. 2, the transient high-frequency pulse waveform capturing system includes a front-end circuit, a first trigger circuit, a second trigger circuit, a sampling circuit, and a data processing module, where the front-end circuit is connected to the first trigger circuit, the second trigger circuit, and the sampling circuit, the data processing module is connected to the first trigger circuit, the second trigger circuit, and the sampling circuit, that is, the first trigger circuit, the second trigger circuit, and the sampling circuit are arranged in parallel, and the front-end circuit, the parallel circuit of the first trigger circuit, the second trigger circuit, and the sampling circuit are arranged in series; the front-end circuit is used for adjusting an input signal, so that the adjusted input signal meets the processing requirement of a subsequent circuit; a first trigger circuit for setting an upper threshold limit and detecting transient pulses that exceed said upper threshold limit upwardly relative to a calibrated zero; the second trigger circuit is used for setting a lower threshold limit and detecting transient pulses which exceed the lower threshold limit downwards relative to a calibration zero value; the sampling circuit is used for sampling an input signal; the data processing module is used for outputting sampling results according to output signals of the first trigger circuit and the second trigger circuit. In the embodiment, the upward transient pulse and the downward transient pulse are synchronously detected through the upper threshold limit and the lower threshold limit, and the influence of the transient high-frequency pulse on the components is effectively discriminated, so that the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
In the embodiment, the upward transient pulse and the downward transient pulse are synchronously detected through the upper threshold limit and the lower threshold limit, and the influence of the transient high-frequency pulse on the components is effectively discriminated, so that the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Another embodiment of the present invention provides a transient high-frequency pulse waveform capturing method, based on the above transient high-frequency pulse waveform capturing system, including: adjusting an input signal by a front-end circuit; setting an upper threshold limit through a first trigger circuit, and detecting an upward transient pulse; setting a lower threshold limit through a second trigger circuit, and detecting a downward transient pulse; sampling the input signal by a sampling circuit; and outputting a sampling waveform according to the output signal of the first trigger circuit and the output signal of the second trigger circuit through a data processing module.
Specifically, in this embodiment, a transient high-frequency pulse waveform capturing method includes: adjusting an input signal by a front-end circuit; setting an upper threshold limit through a first trigger circuit, and detecting an upward transient pulse; setting a lower threshold limit through a second trigger circuit, and detecting a downward transient pulse; sampling the input signal by a sampling circuit; and outputting a sampling waveform according to the output signal of the first trigger circuit and the output signal of the second trigger circuit through a data processing module. In the embodiment, the upward transient pulse and the downward transient pulse are synchronously detected through the upper threshold limit and the lower threshold limit, and the influence of the transient high-frequency pulse on the components is effectively discriminated, so that the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
In the embodiment, the upward transient pulse and the downward transient pulse are synchronously detected through the upper threshold limit and the lower threshold limit, and the influence of the transient high-frequency pulse on the components is effectively discriminated, so that the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Further, the adjusting the input signal by the front-end circuit specifically includes: the front-end circuit scales and shapes the input signal to enable the input signal to be processed by the first trigger circuit, the second trigger circuit, the sampling circuit, and the data processing module.
Specifically, in this embodiment, the adjusting the input signal by the front-end circuit specifically includes: the front-end circuit performs scaling and shaping processing on an input signal so that the input signal can be processed by the first trigger circuit, the second trigger circuit, the sampling circuit and the data processing module. Because the input signal may not be in the processing range of the first trigger circuit, the second trigger circuit, the sampling circuit and the data processing module, the input signal can be processed by the first trigger circuit, the second trigger circuit, the sampling circuit and the data processing module through the arrangement of the front-end circuit, the effective degree of capturing the transient high-frequency pulse waveform is effectively improved, the influence of the transient high-frequency pulse on components is effectively discriminated, the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
In this embodiment, through the setting of front end circuit, make input signal can be handled by first trigger circuit, second trigger circuit, sampling circuit and data processing module, effectively improved the effective degree to transient state high frequency pulse waveform capture to effectively discriminate transient state high frequency pulse to the influence of components and parts, make circuit system can operate under safer environment, effectively ensured circuit system's stability and reliability.
Further, the output signal of the first trigger circuit and the output signal of the second trigger circuit include a synchronous trigger signal, and the data processing module outputs a sampling waveform according to the synchronous trigger signal.
Specifically, in this embodiment, the output signal of the first trigger circuit and the output signal of the second trigger circuit include a synchronous trigger signal, and the data processing module outputs the sampling waveform according to the synchronous trigger signal. The first trigger circuit and the second trigger circuit respectively correspond to the upper threshold limit and the lower threshold limit and are used for generating synchronous trigger pulses, so that the upper threshold limit and the lower threshold limit can be detected simultaneously, the influence of transient high-frequency pulses on components can be effectively screened, the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
In this embodiment, the first trigger circuit and the second trigger circuit are synchronously triggered, so that the upper limit and the lower limit of the threshold can be simultaneously detected, the influence of transient high-frequency pulses on components can be effectively discriminated, the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Further, the first trigger circuit and the second trigger circuit generate the synchronous trigger signal for marking the position of the detected transient pulse signal.
Specifically, in the present embodiment, the first trigger circuit and the second trigger circuit generate synchronous trigger signals for marking the position of the monitored transient pulse signal. In the embodiment, when the upward transient pulse or the downward transient pulse is detected, the position of the transient pulse signal can be marked, and the position of the transient pulse signal is directly reflected on the corresponding oscillogram, so that the influence of the transient high-frequency pulse on the components is effectively discriminated, the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
In the embodiment, the position of the transient pulse signal is marked and directly reflected on the corresponding oscillogram, so that the influence of the transient high-frequency pulse on the components is effectively discriminated, the circuit system can operate in a safer environment, and the stability and reliability of the circuit system are effectively guaranteed.
Further, the upper threshold set by the first trigger circuit and the lower threshold set by the second trigger circuit are also used to determine a calibrated zero value.
In particular, in this embodiment, the upper threshold limit set by the first trigger circuit and the lower threshold limit set by the second trigger circuit are also used to determine a calibrated zero value. The high-frequency transient pulse waveform is represented by a mode of superposing a transient upward or downward pulse waveform by direct current, the direct current is called a calibration zero value, and the value has different names in different occasions, such as leakage current, bias voltage and the like. In the embodiment, the calibration zero value is determined through the upper threshold limit and the lower threshold limit, and the position of the transient pulse signal is directly reflected on the corresponding oscillogram, so that the influence of the transient high-frequency pulse on the components is effectively discriminated, the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Wherein, as with other trigger test systems, the setting of the relative threshold of the signal is done by the user, depending on the particular application scenario. For example, the user only needs to set a relative threshold value THS, collect the signal noise floor effective value as a calibration zero value REF, set the upper threshold value to REF + THS, and set the lower threshold value to REF-THS. The calibration zero is the system output value at which no input signal has been obtained by performing a continuous, significant value calculation on all signals.
In the embodiment, the calibration zero value is determined through the upper threshold limit and the lower threshold limit, and the position of the transient pulse signal is directly reflected on the corresponding oscillogram, so that the influence of the transient high-frequency pulse on the components is effectively discriminated, the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Further, the sampling module samples the input signal, specifically including: the sampling module performs analog-to-digital conversion on the input signal.
Specifically, in this embodiment, the sampling module samples the input signal, and specifically includes: the sampling module performs analog-to-digital conversion on the input signal. In this embodiment, carry out analog-to-digital conversion in order to realize the sampling to input signal through the sampling module, the storage and the post processing of data of being convenient for to effectively discriminate the influence of transient state high frequency pulse to components and parts, make circuit system can operate under safer environment, effectively ensured circuit system's stability and reliability.
In this embodiment, carry out analog-to-digital conversion in order to realize the sampling to input signal through the sampling module, the storage and the post processing of the data of being convenient for to effectively discriminate the influence of transient state high frequency pulse to components and parts, make circuit system can operate under safer environment, effectively ensured circuit system's stability and reliability.
Further, the sampling module samples the input signal, specifically including: high-speed sampling and low-speed sampling; when the high-speed sampling is adopted, a high-frequency transformer is used for coupling to obtain a high-frequency signal waveform; when the low-speed sampling is adopted, the complete waveform is obtained by adopting direct coupling.
Specifically, in this embodiment, the sampling module samples the input signal, which specifically includes: high-speed sampling and low-speed sampling; when high-speed sampling is adopted, a high-frequency transformer is used for coupling to obtain a high-frequency signal waveform; when low-speed sampling is adopted, direct coupling is adopted to obtain a complete waveform. In the embodiment, the precision of high-frequency components is improved through high-speed sampling and low-speed sampling, so that the influence of transient high-frequency pulses on components is effectively discriminated, the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
In the embodiment, the precision of high-frequency components is improved through high-speed sampling and low-speed sampling, so that the influence of transient high-frequency pulses on components is effectively discriminated, the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Further, the sampling module samples the input signal, specifically including: and separating high-frequency components from low-frequency components by adopting a transformer coupling and filter coupling mode.
Specifically, in this embodiment, the sampling module samples the input signal, which specifically includes: and separating high-frequency components from low-frequency components by adopting a transformer coupling and filter coupling mode. In the embodiment, the high-frequency component and the low-frequency component are separated in a transformer coupling and filter coupling mode to improve the precision of the high-frequency component, so that the influence of transient high-frequency pulses on components is effectively discriminated, a circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
In the embodiment, the high-frequency component and the low-frequency component are separated in a transformer coupling and filter coupling mode to improve the precision of the high-frequency component, so that the influence of transient high-frequency pulses on components is effectively discriminated, a circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Further, the sampling module samples the input signal, and specifically includes: and adjusting the high-frequency component and the low-frequency component to a preset range by using an independent program-controlled attenuation network, synchronously sampling by using a dual-channel high-speed AD converter, and combining the high-frequency component and the low-frequency component in the signal processing process.
Specifically, in this embodiment, the sampling module samples an input signal, and specifically includes: and adjusting the high-frequency component and the low-frequency component to a preset range by using an independent program-controlled attenuation network, synchronously sampling by using a dual-channel high-speed AD converter, and combining the high-frequency component and the low-frequency component in the signal processing process. In the embodiment, the precision of high-frequency components is improved through high-speed sampling and low-speed sampling, so that the influence of transient high-frequency pulses on components is effectively discriminated, the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
In the embodiment, the precision of high-frequency components is improved through high-speed sampling and low-speed sampling, so that the influence of transient high-frequency pulses on components is effectively discriminated, the circuit system can operate in a safer environment, and the stability and the reliability of the circuit system are effectively guaranteed.
Further, the transient high-frequency pulse waveform capturing method further comprises the following steps: and when the upper threshold or the lower threshold is triggered, the data processing module records, processes and outputs the data acquired by the sampling circuit.
Specifically, in this embodiment, the transient high-frequency pulse waveform capturing method further includes: when the upper threshold or the lower threshold is triggered, the data processing module records, processes and outputs the data acquired by the sampling circuit. The sampling circuit works continuously, then two monitoring thresholds, namely a threshold upper limit and a threshold lower limit, are set on the basis of calibrating zero values, and when any one or two of the two thresholds are met, the data processing module is triggered to carry out retention processing and output on the data acquired by the sampling circuit. In this embodiment, when the upper threshold or the lower threshold is set for triggering, the data processing module records, processes and outputs the data acquired by the sampling circuit, so as to effectively discriminate the influence of the transient high-frequency pulse on the components, so that the circuit system can operate in a safer environment, and the stability and reliability of the circuit system are effectively guaranteed.
In this embodiment, when the upper threshold or the lower threshold is triggered, the data processing module records, processes and outputs the data acquired by the sampling circuit, so that the influence of the transient high-frequency pulse on the components can be effectively discriminated, the circuit system can operate in a safer environment, and the stability and reliability of the circuit system are effectively guaranteed.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. A transient high-frequency pulse waveform capturing system is characterized by comprising a front-end circuit, a first trigger circuit, a second trigger circuit, a sampling circuit and a data processing module, wherein the front-end circuit is respectively connected with the first trigger circuit, the second trigger circuit and the sampling circuit;
the front-end circuit is used for adjusting an input signal to enable the adjusted input signal to meet the processing requirement of a subsequent circuit;
the first trigger circuit is used for setting an upper threshold limit and detecting transient pulses which exceed the upper threshold limit upwards relative to a calibration zero value;
the second trigger circuit is used for setting a lower threshold limit and detecting transient pulses which are downwards lower than the lower threshold limit relative to a calibration zero value;
the sampling circuit is used for sampling the input signal;
the data processing module is used for outputting sampling results according to output signals of the first trigger circuit and the second trigger circuit.
2. A transient high-frequency pulse waveform capturing method based on the transient high-frequency pulse waveform capturing system according to claim 1, comprising:
adjusting an input signal by a front-end circuit;
setting an upper threshold limit through a first trigger circuit, and detecting an upward transient pulse;
setting a lower threshold limit through a second trigger circuit, and detecting a downward transient pulse;
sampling the input signal by a sampling circuit;
and outputting a sampling waveform according to the output signal of the first trigger circuit and the output signal of the second trigger circuit through a data processing module.
3. The method according to claim 2, wherein the adjusting the input signal by the front-end circuit comprises: the front-end circuit scales and shapes the input signal to enable the input signal to be processed by the first trigger circuit, the second trigger circuit, the sampling circuit, and the data processing module.
4. The transient high-frequency pulse waveform capturing method as claimed in claim 2, wherein said output signal of said first flip-flop circuit and said output signal of said second flip-flop circuit include a synchronous trigger signal, and said data processing module outputs a sampling waveform according to said synchronous trigger signal.
5. The transient high-frequency pulse waveform capturing method as claimed in claim 4, wherein said first trigger circuit and said second trigger circuit generate said synchronization trigger signal for marking the position of the detected transient pulse signal.
6. The transient high frequency pulse waveform capture method of claim 2, wherein the upper threshold limit set by the first trigger circuit and the lower threshold limit set by the second trigger circuit are further used to determine a calibration zero value.
7. The transient high-frequency pulse waveform capture method of claim 2, wherein the sampling module samples the input signal, in particular comprising: high-speed sampling and low-speed sampling;
when the high-speed sampling is adopted, a high-frequency transformer is used for coupling to obtain a high-frequency signal waveform;
when the low-speed sampling is adopted, the complete waveform is obtained by adopting direct coupling.
8. The transient high-frequency pulse waveform capture method of claim 2, wherein the sampling module samples the input signal, in particular comprising: and separating high-frequency components from low-frequency components by adopting a transformer coupling and filter coupling mode.
9. The transient high-frequency pulse waveform capture method of claim 8, wherein the sampling module samples the input signal, and further comprising: and adjusting the high-frequency component and the low-frequency component to a preset range by using an independent program-controlled attenuation network, synchronously sampling by using a dual-channel high-speed AD converter, and combining the high-frequency component and the low-frequency component in the signal processing process.
10. The transient high-frequency pulse waveform capture method of claim 2, further comprising: and when the upper threshold or the lower threshold is triggered, the data processing module records, processes and outputs the data acquired by the sampling circuit.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0164978A1 (en) * | 1984-06-05 | 1985-12-18 | Motorola, Inc. | Vertical synchronisation pulse separator |
| CN1790035A (en) * | 2004-12-15 | 2006-06-21 | 安捷伦科技有限公司 | Method and device for detecting the leading edge of a pulse |
| JP2007274659A (en) * | 2006-03-31 | 2007-10-18 | Key Stream Kk | Radar interference wave detection circuit |
| CN201322775Y (en) * | 2008-12-25 | 2009-10-07 | 和芯微电子(四川)有限公司 | Any vector pulse stretching circuit |
| US20100156447A1 (en) * | 2008-12-23 | 2010-06-24 | Imec | Method for Calibrating a Transmission Line Pulse Test System |
| CN104267327A (en) * | 2014-09-05 | 2015-01-07 | 兰州空间技术物理研究所 | Space single-particle transient state impulse testing system |
| CN105548641A (en) * | 2015-12-15 | 2016-05-04 | 大豪信息技术（威海）有限公司 | Waveform triggering device and method and oscilloscope for waveform triggering |
| CN105675984A (en) * | 2016-01-19 | 2016-06-15 | 中国科学院上海微***与信息技术研究所 | Pulse waveform testing circuit |
| CN107769756A (en) * | 2017-10-26 | 2018-03-06 | 广州视源电子科技股份有限公司 | Control method and device, storage device and the burst pulse filter plant of burst pulse filtering |
| CN108845224A (en) * | 2018-09-14 | 2018-11-20 | 广州赛宝计量检测中心服务有限公司 | Hit detection device and hit detection method |
-
2020
- 2020-07-28 CN CN202010735240.1A patent/CN111766452A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0164978A1 (en) * | 1984-06-05 | 1985-12-18 | Motorola, Inc. | Vertical synchronisation pulse separator |
| CN1790035A (en) * | 2004-12-15 | 2006-06-21 | 安捷伦科技有限公司 | Method and device for detecting the leading edge of a pulse |
| JP2007274659A (en) * | 2006-03-31 | 2007-10-18 | Key Stream Kk | Radar interference wave detection circuit |
| US20100156447A1 (en) * | 2008-12-23 | 2010-06-24 | Imec | Method for Calibrating a Transmission Line Pulse Test System |
| CN201322775Y (en) * | 2008-12-25 | 2009-10-07 | 和芯微电子(四川)有限公司 | Any vector pulse stretching circuit |
| CN104267327A (en) * | 2014-09-05 | 2015-01-07 | 兰州空间技术物理研究所 | Space single-particle transient state impulse testing system |
| CN105548641A (en) * | 2015-12-15 | 2016-05-04 | 大豪信息技术（威海）有限公司 | Waveform triggering device and method and oscilloscope for waveform triggering |
| CN105675984A (en) * | 2016-01-19 | 2016-06-15 | 中国科学院上海微***与信息技术研究所 | Pulse waveform testing circuit |
| CN107769756A (en) * | 2017-10-26 | 2018-03-06 | 广州视源电子科技股份有限公司 | Control method and device, storage device and the burst pulse filter plant of burst pulse filtering |
| CN108845224A (en) * | 2018-09-14 | 2018-11-20 | 广州赛宝计量检测中心服务有限公司 | Hit detection device and hit detection method |
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