CN112485517B - Method for measuring frequency hopping time of phase-locked frequency source and terminal equipment - Google Patents
Method for measuring frequency hopping time of phase-locked frequency source and terminal equipment Download PDFInfo
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Abstract
The invention is suitable for the technical field of microwave frequency source and test measurement, and provides a method and terminal equipment for measuring frequency hopping time of a phase-locked frequency source, wherein the method comprises the following steps: acquiring a detected signal; determining a timing time period according to the frequency of a measured signal and the requirement of signal stability precision; respectively measuring the actual frequency corresponding to each timing time period, and when the measured actual frequencies of the continuous preset number are all equal to the frequency of the measured signal, determining that the frequency stabilization time is the timing time period corresponding to the first actual frequency in the actual frequencies of the continuous preset number; the hopping time of the frequency of the phase-locked frequency source is determined according to the frequency stabilization time and the starting time of the frequency hopping trigger signal, so that the accurate hopping time can be obtained, the method is suitable for measuring the frequency hopping time index of the phase-locked frequency source products under the batch condition, and the test efficiency can be greatly improved.
Description
Technical Field
The invention belongs to the technical field of microwave frequency source and test measurement, and particularly relates to a method and terminal equipment for measuring frequency hopping time of a phase-locked frequency source.
Background
The frequency hopping time is an important index of a microwave frequency source, and sometimes can directly influence the technical performance of a system. The frequency hopping time of a phase locked source typically ranges from a few microseconds to a few milliseconds. The following method is generally used to measure the frequency hopping time of the phase-locked source: firstly, measuring the time from the beginning of a frequency hopping instruction to the time when a frequency source locking indication level is effective; secondly, converting the signal into the working bandwidth of an oscilloscope, and reading the waveform stabilization time of the signal by the oscilloscope; and thirdly, directly measuring the frequency hopping time by using a signal analyzer.
However, in the method one, the measured frequency hopping time is not accurate enough because the locking indication of the phase-locked loop has a large error with the stabilization time of the actual signal; when the method II is adopted, the problem that the signal stabilization time is difficult to accurately judge also exists; when the method three is adopted, only the frequency hopping time of the signal can be measured, and the delay time of the control logic circuit needs to be additionally measured, so that the measuring method is complicated, and a signal analysis instrument is generally expensive.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and a terminal device for measuring frequency hopping time of a phase-locked frequency source, which aim to solve the problems in the prior art that the frequency hopping time of the phase-locked frequency source is not accurate and the measuring method is complicated.
To achieve the above object, a first aspect of the embodiments of the present invention provides a method for measuring a frequency hopping time of a phase-locked frequency source, including:
acquiring a detected signal;
determining a timing time period according to the frequency of a measured signal and the requirement of signal stability precision;
respectively measuring the actual frequency corresponding to each timing time period, and when the measured actual frequencies of the continuous preset number are equal to the frequency of the measured signal, determining that the frequency stabilization time is the timing time period corresponding to the first actual frequency in the actual frequencies of the continuous preset number;
and determining the hopping time of the frequency source frequency of the phase locking according to the frequency stabilization time and the start time of the frequency hopping trigger signal.
As another embodiment of the present application, the determining a timing period according to the frequency of the measured signal and the requirement of signal stability precision includes:
calculating the one-time timing time of the timer according to the frequency of the measured signal and the signal stability precision requirement;
and equally dividing the time period corresponding to the one-time timing time into the preset number of timing time periods.
As another embodiment of the present application, the calculating a one-time counting time of a timer according to the frequency of the measured signal and the requirement of signal stability precision includes:
and calculating the quotient of the frequency of the measured signal and the frequency accuracy corresponding to the signal stability precision requirement, wherein the obtained quotient is the one-time timing time of the timer.
As another embodiment of the present application, after the respectively measuring the actual frequency corresponding to each of the timing periods, the method further includes:
detecting whether the current actual frequency is equal to the frequency of the signal to be detected;
if the measured current actual frequency is greater than the frequency of the measured signal, discarding the data of the timing time period corresponding to the current actual frequency, and continuing to measure the actual frequency corresponding to the next timing time period.
As another embodiment of the present application, after the detecting whether the current actual frequency is equal to the frequency of the signal under test, the method further includes:
if the measured current actual frequency is equal to the frequency of the measured signal, recording the current actual frequency and a timing time period corresponding to the current actual frequency, and setting the counting number of a counter to be increased by one;
detecting whether the count value of the counter is equal to a preset number or not;
and when the count value of the counter is not equal to the preset number, continuously measuring the actual frequency corresponding to the next timing time period.
As another embodiment of the present application, the signal to be measured is a signal obtained by transforming a signal emitted by a frequency source to be measured by a down converter.
As another embodiment of the present application, after the determining the hopping time of the frequency of the phase-locked frequency source, the method further includes:
and sending the determined jump time to an upper computer.
A second aspect of the embodiments of the present invention provides an apparatus for measuring a frequency hopping time of a phase-locked frequency source, including:
the acquisition module is used for acquiring a detected signal;
the calculation module is used for determining a timing time period according to the frequency of the measured signal and the requirement of signal stability precision;
the measuring module is used for respectively measuring the actual frequency corresponding to each timing time period;
the determining module is used for determining that the frequency stabilization time is the timing time period corresponding to the first actual frequency in the actual frequencies of the continuous preset number when the measured actual frequencies of the continuous preset number are equal to the frequency of the measured signal;
the determining module is further configured to determine a hopping time of the frequency source according to the frequency stabilization time and the start time of the frequency hopping trigger signal.
A third aspect of an embodiment of the present invention provides a terminal device, including: a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor when executing the computer program realizes the steps of the method for measuring the frequency hopping time of the phase-locked frequency source according to any one of the embodiments.
A fourth aspect of an embodiment of the present invention provides a computer-readable storage medium, including: the computer readable storage medium stores a computer program, which when executed by a processor implements the steps of the method for measuring frequency hopping time of a phase-locked frequency source according to any of the embodiments.
Compared with the prior art, the embodiment of the invention has the following beneficial effects: compared with the prior art, the method and the device have the advantages that the actual frequency corresponding to each timing time period is measured and detected, and when the actual items with the preset number meet the requirements, the frequency stabilization time can be determined, so that the test result is more accurate. The method for measuring the frequency hopping time of the phase-locked frequency source is suitable for measuring the frequency hopping time index of the phase-locked frequency source products under the batch condition, and meanwhile, an oscilloscope or an expensive signal analyzer is not needed in the testing method, so that the testing efficiency can be greatly improved.
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In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic flow chart illustrating an implementation of a method for measuring a frequency hopping time of a phase-locked frequency source according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a measurement system for measuring a frequency hopping time of a phase-locked frequency source according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an interaction flow for determining a timing period according to a frequency of a signal under test and a requirement for signal stability accuracy according to an embodiment of the present invention;
fig. 4 is an exemplary diagram of an apparatus for measuring frequency hopping time of a phase-locked frequency source according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Fig. 1 is a schematic diagram illustrating an implementation flow of the method for measuring the frequency hopping time of the phase-locked frequency source according to the embodiment of the present invention, which is described in detail as follows.
Optionally, the measured signal obtained in this step is a signal obtained by converting a signal emitted by the measured frequency source through a down converter.
Before the step of acquiring the detected signal, acquiring a frequency hopping trigger signal, detecting whether the frequency hopping trigger signal is valid, recording the time corresponding to the frequency hopping trigger signal when the frequency hopping trigger signal is valid, taking the time corresponding to the frequency hopping trigger signal as the start time of determining the hopping time of the frequency of the phase-locked frequency source, continuing the subsequent operation, and acquiring a new frequency hopping trigger signal again when the frequency hopping trigger signal is invalid.
As shown in fig. 2, a schematic diagram of a measuring system for measuring frequency hopping time of a phase-locked frequency source is shown, a measured signal sent by a measured frequency source 1 is subjected to frequency conversion processing by a down converter 2, and then enters a low-pass filter 3 for filtering processing, the signal after the filtering processing is subjected to signal processing by an FPGA digital processing board 4, the processed signal or data is received by an upper computer 5 for storage, and the upper computer can also control the measured frequency source 1 and a frequency hopping source 6.
In the method, the frequency hopping time of the phase-locked frequency source is measured, expensive equipment such as an oscilloscope or a signal analysis instrument is not needed, and the cost is low.
And step 102, determining a timing time period according to the frequency of the measured signal and the requirement of signal stability precision.
Optionally, as shown in fig. 3, when determining the timing time period according to the frequency of the measured signal and the requirement of signal stability precision, the step may include:
and step 301, calculating the one-time timing time of the timer according to the frequency of the measured signal and the requirement of signal stability precision.
Optionally, in this step, a quotient of the frequency of the measured signal and the frequency accuracy corresponding to the signal stability accuracy requirement may be calculated, and the obtained quotient is the one-time timing time of the timer.
For example, the frequency of the measured signal is converted to the frequency of 100MHz by the down converter, the signal stability accuracy requirement reaches 1ppm, and then the input pulse number of the signal to be measured within 10ms is 10 according to the frequency of the measured signal and the signal stability accuracy requirement 6 The error is +/-1, so that the requirement can be met. I.e. the calculated one-time counting time of the timer can be 10ms.
It should be noted that, if the signal stabilization accuracy requirements are different, the calculated time counted by the timer at one time is also different, and in this embodiment, the signal stabilization accuracy requirement is not limited, and the signal stabilization accuracy needs to be determined according to actual requirements.
If a frequency measurement mode of timing 10ms once is adopted, when the measured frequency does not meet the requirement, accurate frequency hopping time cannot be obtained. Therefore, to measure accurate frequency settling time, one timing time may be further divided into smaller time segments. For example, when the one-time counting time is 10ms, the preset number may be 5000, the time period of 10ms is divided into 5000 equal small time periods, each time period is 2us, and the counting time period of this embodiment may be 2us. The preset number can be set according to actual requirements, and the value of the preset number is not limited in the application. The measurement accuracy can be changed by adjusting the duration of the timing time period.
103, respectively measuring the actual frequency corresponding to each timing time period, and when the measured actual frequencies of the continuous preset number are equal to the frequency of the measured signal, determining that the frequency stabilization time is the timing time period corresponding to the first actual frequency in the actual frequencies of the continuous preset number.
Optionally, after the measuring the corresponding actual frequency in each of the first time periods in this step, the method may further include: detecting whether the current actual frequency is equal to the frequency of the signal to be detected. Here, the frequency of the signal to be measured is screened as a target frequency.
Optionally, if the measured current actual frequency is greater than the frequency of the measured signal, it indicates that the frequency corresponding to the timing time period is not stable, the data of the timing time period corresponding to the current actual frequency is discarded, the actual frequency corresponding to the next timing time period is continuously measured, and the actual frequency corresponding to the next timing time period is detected.
Optionally, if the measured current actual frequency is equal to the frequency of the measured signal, the current actual frequency and the timing time period corresponding to the current actual frequency are recorded, and the counted number of the counter is increased by one. It should be noted that, when the flow of the method for measuring the frequency hopping time of the phase-locked frequency source of the embodiment starts, the counter is reset.
Detecting whether the count value of the counter is equal to a preset number or not;
and when the count value of the counter is not equal to the preset number, continuously measuring the actual frequency corresponding to the next timing time period.
And when the counting value of the counter is equal to the preset number, namely when the measured actual frequency of the continuous preset number is equal to the frequency of the measured signal, continuing the subsequent operation.
Optionally, when the measured actual frequencies of the consecutive preset number are equal to the frequency of the measured signal, which indicates that the frequency of the measured signal is stable at this time, the frequency stabilization time is determined as the timing time period corresponding to the first actual frequency in the actual frequencies of the consecutive preset number. It should be noted that the number of the continuous preset times is the same as the number of the divided timing time periods, for example, the number of the continuous preset times may be 5000 continuous, so that it is ensured that the accurate frequency stabilization time is obtained.
And step 104, determining the hopping time of the frequency of the phase-locked frequency source according to the frequency stabilization time and the start time of the frequency hopping trigger signal.
Optionally, the method may further include: and sending the determined jump time to an upper computer.
According to the method for measuring the frequency hopping time of the phase-locked frequency source, the timing time period is determined according to the frequency of the measured signal and the requirement of the signal stability precision; respectively measuring the actual frequency corresponding to each timing time period, and when the measured actual frequencies with the continuous preset number are equal to the frequency of the measured signal, determining that the frequency stabilization time is the timing time period corresponding to the first actual frequency in the actual frequencies with the continuous preset number; and determining the hopping time of the frequency source frequency of the phase locking according to the frequency stabilization time and the start time of the frequency hopping trigger signal. In this embodiment, the actual frequency corresponding to each timing time period is measured, the actual frequency is detected, and when the actual items with the preset number meet the requirement, the frequency stabilization time can be determined, so that the test result is more accurate. The method for measuring the frequency hopping time of the phase-locked frequency source is suitable for measuring the frequency hopping time index of the phase-locked frequency source products under the batch condition, and meanwhile, an oscilloscope or an expensive signal analyzer is not needed in the testing method, so that the testing efficiency can be greatly improved.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by functions and internal logic of the process, and should not limit the implementation process of the embodiments of the present invention in any way.
Fig. 4 is a diagram illustrating an example of an apparatus for measuring a frequency hopping time of a phase-locked frequency source according to an embodiment of the present invention, corresponding to the method for measuring a frequency hopping time of a phase-locked frequency source according to the above embodiment. As shown in fig. 4, the apparatus may include: an acquisition module 401, a calculation module 402, a measurement module 403, and a determination module 404.
An obtaining module 401, configured to obtain a signal to be detected;
a calculating module 402, configured to determine a timing time period according to the frequency of the measured signal and the requirement of signal stability precision;
a measuring module 403, configured to measure an actual frequency corresponding to each timing period;
a determining module 404, configured to determine, when the measured actual frequencies of the consecutive preset number are equal to the frequency of the measured signal, that the frequency stabilization time is a timing time period corresponding to a first actual frequency in the actual frequencies of the consecutive preset number;
the determining module 404 is further configured to determine a hopping time of the frequency-locked frequency source according to the frequency stabilization time and the start time of the frequency hopping trigger signal.
Optionally, the signal to be measured is a signal obtained by converting a signal emitted by the frequency source to be measured by the down converter.
Optionally, when determining the timing time period according to the frequency of the measured signal and the requirement of signal stability precision, the calculating module 402 may be configured to:
calculating the one-time timing time of the timer according to the frequency of the measured signal and the requirement of signal stability precision;
and equally dividing the time period corresponding to the one-time timing time into the preset number of timing time periods.
Optionally, the calculating module 402 may be configured to calculate the time counted by the timer once according to the frequency of the measured signal and the requirement of signal stability precision, where the time is calculated by the timer once, and is used to:
and calculating the quotient of the frequency of the measured signal and the frequency accuracy corresponding to the signal stability precision requirement, wherein the obtained quotient is the one-time timing time of the timer.
Optionally, after the measuring module 403 measures the actual frequency corresponding to each timing time period, the method is further configured to: detecting whether the current actual frequency is equal to the frequency of the signal to be detected. And a determining module 404, configured to discard data of a timing time period corresponding to the current actual frequency and continue to measure an actual frequency corresponding to a next timing time period if the measured current actual frequency is greater than the frequency of the measured signal. If the measured current actual frequency is equal to the frequency of the measured signal, recording the current actual frequency and a timing time period corresponding to the current actual frequency, and setting the counting number of the counter to be increased by one; detecting whether the count value of the counter is equal to a preset number or not; and when the count value of the counter is not equal to the preset number, continuously measuring the actual frequency corresponding to the next timing time period.
Optionally, after the determining module 404 determines the hopping time of the frequency of the phase-locked frequency source, the determining module is further configured to: and sending the determined jump time to an upper computer.
The device for measuring the frequency hopping time of the phase-locked frequency source determines a timing time period by the calculation module according to the frequency of a measured signal and the requirement of signal stability precision; the measuring module measures the actual frequency corresponding to each timing time period respectively, and when the measured actual frequencies in the continuous preset number are equal to the frequency of the measured signal, the determining module determines that the frequency stabilizing time is the timing time period corresponding to the first actual frequency in the actual frequencies in the continuous preset number; and determining the hopping time of the frequency source frequency of the phase locking by a determining module according to the frequency stabilization time and the frequency hopping trigger signal starting time. In this embodiment, the actual frequency corresponding to each timing time period is measured, the actual frequency is detected, and when the actual items with the preset number meet the requirement, the frequency stabilization time can be determined, so that the test result is more accurate. The method for measuring the frequency hopping time of the phase-locked frequency source is suitable for measuring the frequency hopping time index of the phase-locked frequency source product under the batch condition, does not need an oscilloscope or an expensive signal analyzer, and can greatly improve the test efficiency.
Fig. 5 is a schematic diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 5, the terminal device 500 of this embodiment includes: a processor 501, a memory 502 and a computer program 503 stored in said memory 502 and executable on said processor 501, such as a program for measuring a frequency hopping time of a phase locked frequency source. The processor 501 executes the computer program 503 to implement the steps in the above-mentioned method for measuring the frequency hopping time of the phase-locked frequency source, such as steps 101 to 104 shown in fig. 1, or steps 301 to 302 shown in fig. 3, and the processor 501 executes the computer program 503 to implement the functions of the modules in the above-mentioned device embodiments, such as the modules 401 to 404 shown in fig. 4.
Illustratively, the computer program 503 may be partitioned into one or more program modules that are stored in the memory 502 and executed by the processor 501 to implement the present invention. The one or more program modules may be a series of computer program instruction segments capable of performing certain functions for describing the execution of the computer program 503 in the apparatus for measuring frequency hopping time of a phase-locked frequency source or the terminal device 500. For example, the computer program 503 may be divided into an obtaining module 401, a calculating module 402, a measuring module 403, and a determining module 404, and specific functions of the modules are shown in fig. 4, which are not described in detail herein.
The terminal device 500 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device may include, but is not limited to, a processor 501, a memory 502. Those skilled in the art will appreciate that fig. 5 is merely an example of a terminal device 500 and is not intended to limit the terminal device 500 and may include more or fewer components than those shown, or some components may be combined, or different components, for example, the terminal device may also include input output devices, network access devices, buses, etc.
The Processor 501 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 502 may be an internal storage unit of the terminal device 500, such as a hard disk or a memory of the terminal device 500. The memory 502 may also be an external storage device of the terminal device 500, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 500. Further, the memory 502 may also include both an internal storage unit and an external storage device of the terminal device 500. The memory 502 is used for storing the computer programs and other programs and data required by the terminal device 500. The memory 502 may also be used to temporarily store data that has been output or is to be output.
It should be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional units and modules is only used for illustration, and in practical applications, the above function distribution may be performed by different functional units and modules as needed, that is, the internal structure of the apparatus may be divided into different functional units or modules to perform all or part of the above described functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. For the specific working processes of the units and modules in the system, reference may be made to the corresponding processes in the foregoing method embodiments, which are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments described above may be implemented. . Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U.S. disk, removable hard disk, magnetic diskette, optical disk, computer Memory, read-Only Memory (ROM), random Access Memory (RAM), electrical carrier wave signal, telecommunications signal, and software distribution medium, etc. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (8)
1. A method for measuring frequency hopping time of a phase locked frequency source, comprising:
acquiring a detected signal;
determining a timing time period according to the frequency of the measured signal and the signal stability accuracy requirement, comprising:
according to the frequency of the measured signal and the requirement of signal stability precision, calculating the one-time timing time of the timer, comprising the following steps: calculating a quotient of the frequency of the measured signal and the frequency accuracy corresponding to the signal stability precision requirement, wherein the obtained quotient is the one-time timing time of the timer;
equally dividing the time periods corresponding to the one-time timing time into the timing time periods with preset number;
respectively measuring the actual frequency corresponding to each timing time period, and when the measured actual frequencies of the continuous preset number are equal to the frequency of the measured signal, determining that the frequency stabilization time is the timing time period corresponding to the first actual frequency in the actual frequencies of the continuous preset number;
and determining the hopping time of the frequency source frequency of the phase locking according to the frequency stabilization time and the start time of the frequency hopping trigger signal.
2. The method of measuring frequency hopping times of a phase locked frequency source according to claim 1, further comprising, after said measuring the actual frequency corresponding to each of said timing periods, respectively:
detecting whether the current actual frequency is equal to the frequency of the signal to be detected;
and if the measured current actual frequency is not equal to the frequency of the measured signal, discarding the data of the timing time period corresponding to the current actual frequency, and continuously measuring the actual frequency corresponding to the next timing time period.
3. The method of measuring a frequency hop time of a phase locked frequency source as claimed in claim 2, wherein after said detecting whether the current actual frequency is equal to the frequency of the signal under test, further comprising:
if the measured current actual frequency is equal to the frequency of the measured signal, recording the current actual frequency and a timing time period corresponding to the current actual frequency, and setting the counting number of a counter to be increased by one;
detecting whether the count value of the counter is equal to a preset number or not;
and when the count value of the counter is not equal to the preset number, continuously measuring the actual frequency corresponding to the next timing time period.
4. The method for measuring the frequency hopping time of the phase-locked frequency source according to claim 1, wherein the signal to be measured is a signal obtained by converting a signal emitted from the frequency source to be measured by a down converter.
5. The method of measuring a frequency hopping time of a phase-locked frequency source as claimed in any one of claim 1, further comprising, after said determining a hopping time of a frequency of a phase-locked frequency source:
and sending the determined jump time to an upper computer.
6. An apparatus for measuring frequency hopping time of a phase locked frequency source, comprising:
the acquisition module is used for acquiring a detected signal;
the calculation module is used for determining a timing time period according to the frequency of the measured signal and the requirement of signal stability precision, and comprises:
the calculating module is used for calculating the one-time timing time of the timer according to the frequency of the measured signal and the requirement of signal stability precision, and comprises: the module is used for calculating the quotient of the frequency of the measured signal and the frequency accuracy corresponding to the signal stability precision requirement, and the obtained quotient is the one-time timing time of the timer;
the calculation module is further configured to divide time periods corresponding to the one-time timing time into a preset number of timing time periods;
the measuring module is used for respectively measuring the actual frequency corresponding to each timing time period;
the determining module is used for determining that the frequency stabilization time is a timing time period corresponding to the first actual frequency in the actual frequencies of the continuous preset number when the measured actual frequencies of the continuous preset number are equal to the frequency of the measured signal;
the determining module is further configured to determine a hopping time of the frequency source according to the frequency stabilization time and the start time of the frequency hopping trigger signal.
7. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 5 when executing the computer program.
8. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5.
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