CN112711482B - Method for realizing radar self-adaptive resource scheduling and visual control - Google Patents

Method for realizing radar self-adaptive resource scheduling and visual control Download PDF

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CN112711482B
CN112711482B CN202110199701.2A CN202110199701A CN112711482B CN 112711482 B CN112711482 B CN 112711482B CN 202110199701 A CN202110199701 A CN 202110199701A CN 112711482 B CN112711482 B CN 112711482B
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radar
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time
time window
resource
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CN112711482A (en
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谭风华
黄洁
高迪
普亚洲
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Aerospace Nanhu Electronic Information Technology Co ltd
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    • G06—COMPUTING; CALCULATING OR COUNTING
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    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
    • G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
    • G06F9/5038—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals considering the execution order of a plurality of tasks, e.g. taking priority or time dependency constraints into consideration
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
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Abstract

The invention relates to a method for realizing radar self-adaptive resource scheduling and visual control, belonging to the technical field of radar resource scheduling. The invention can realize processing burst scheduling, support longer-time cross-wave position resident scheduling, calculate the next resident electrical scanning horizontal angle to be scheduled, process the power reduction caused by overlarge electrical scanning angle in the horizontal direction and avoid the problem of non-convergence of the self-adaptive scheduling algorithm on the basis of the traditional flexible resource scheduling. And the main control scheduling system can carry display control software and main control software with a sliding window algorithm, so that the mutual conversion of the electrical scanning angle range and the residual time resources in the horizontal direction of the phased array radar and the collection and report of the current residual resources of the radar are realized. The problems that radar resources existing in a traditional master control scheduling scheme are divided into a plurality of small fragments and cannot be used by other tasks, the resource utilization rate is low, and the resource utilization rate and the resource scheduling flexibility of the phased array radar are seriously influenced are solved.

Description

Method for realizing radar self-adaptive resource scheduling and visual control
Technical Field
The invention relates to a method for realizing radar self-adaptive resource scheduling and visual control, belonging to the technical field of radar resource scheduling.
Background
Under the radar omnibearing early warning mode, the phased array radar rotates horizontally according to the speed of 10 s/turn, and the 360-degree coverage of the azimuth dimension is realized by adopting a scanning mode of 'mechanical scanning + phase scanning'. In the scanning process of the radar machine, according to the requirements of a system and an air situation, besides conventional target searching, scheduling operations which need to monopolize system time resources, such as retrace confirmation, key target monitoring, energy collection detection, high distance resolution, target classification identification, real-time monitoring and correction, and the like, need to be arranged. In a traditional master control scheduling scheme, the priority of a conventional search task is highest, and the conventional search task divides radar time resources into different search time slice types and non-search time slice types; only search scheduling can be performed in the search time slice, and only non-search scheduling can be performed in the non-search time slice, which causes the following problems: 1. the radar resources are divided into a plurality of small fragments which cannot be used by other tasks, and the resource utilization rate is low; 2. the method has the advantages that large radar non-search time slices cannot be obtained, and tasks including energy collection detection and target identification which need to continuously occupy a plurality of wave position time slices cannot be arranged; in addition, real-time data monitoring and historical data playback of radar residual resources cannot be realized, and the resource utilization rate and the flexibility of resource scheduling of the phased array radar are seriously influenced.
Disclosure of Invention
The invention aims to provide a method for realizing radar self-adaptive resource scheduling and visual control, which aims to overcome the defects of the prior art and comprises hardware and software, wherein the software comprises radar main control software and display control software, the mutual conversion of an electrical scanning angle range and a residual time resource of a radar in the horizontal direction is realized through a sliding window algorithm, the current residual resource of the radar is collected and reported, and the current residual condition of the radar main control resource is visually displayed in real time through a sliding window and a display control interface instrument panel, so that the use condition of the current resource is conveniently and timely mastered, a radar task is reasonably arranged, and the maximum utilization of the radar resource is realized.
The invention realizes the purpose through the following technical scheme:
a method for realizing radar self-adaptive resource scheduling and visual control comprises the following steps that hardware for realizing the method comprises a radar master control scheduling system, and software comprises master control software and display control software which use a sliding time window algorithm; the method is characterized by comprising the following steps:
firstly, analyzing the use condition of the current resource through a radar master control scheduling system.
In the case of the radar under the mechanical scanning scene, the wave position arrangement needs to be carried out by integrating all factors of the mechanical scanning speed, the searching beam width and the residence time, and the factors determine the time interval between two times of beam scheduling from the first to the secondNThe scheduling of each search beam is finished to the secondNThe time interval for starting scheduling of +1 search beams is
Figure 100002_DEST_PATH_IMAGE002
，
Figure 100002_DEST_PATH_IMAGE003
Expressed by the following formula:
Figure 100002_DEST_PATH_IMAGE004
in the formula:Hthe unit of time consumed by each circle of machine scanning of the radar is second;αis from the first toNA beam to the firstNHorizontal angle of +1 beams in degrees;Ithe unit is second for the search beam dwell time.
And secondly, the radar master control scheduling system is overlapped with master control software through a sliding time window algorithm to realize the self-adaptive scheduling of the radar master control.
Assume that the actual scheduling interval is
Figure 100002_DEST_PATH_IMAGE005
After the radar supports horizontal electric scanning, allow
Figure 100002_DEST_PATH_IMAGE006
Is not equal to
Figure 100002_DEST_PATH_IMAGE008
Setting a time window based on the condition
Figure 100002_DEST_PATH_IMAGE009
Initialized to zero, and processed as follows:
1) When in use
Figure 100002_DEST_PATH_IMAGE010
Time of day, time window
Figure 100002_DEST_PATH_IMAGE011
Sliding in the positive direction;
2) When in use
Figure 100002_DEST_PATH_IMAGE012
Time, proceed time window
Figure 100002_DEST_PATH_IMAGE013
Reverse sliding;
3) When the temperature is higher than the set temperature
Figure 100002_DEST_PATH_IMAGE014
Time, time window
Figure 736143DEST_PATH_IMAGE013
Keeping the original shape;
to sum up, the time window
Figure 491610DEST_PATH_IMAGE013
The update expressible formula is:
Figure 100002_DEST_PATH_IMAGE015
referring to the above formula (2), the burst scheduling task can be processed, and the details of the processing are as follows:
1) When the burst scheduling task is less, then
Figure 100002_DEST_PATH_IMAGE016
Is less than
Figure 100002_DEST_PATH_IMAGE017
Time window
Figure 100002_DEST_PATH_IMAGE018
Will increase
Figure 100002_DEST_PATH_IMAGE019
；
2) When there are more burst scheduling tasks, then
Figure 802374DEST_PATH_IMAGE005
Is greater than
Figure 100002_DEST_PATH_IMAGE020
Time window
Figure 100002_DEST_PATH_IMAGE021
Will reduce
Figure 100002_DEST_PATH_IMAGE022
；
When the radar rotates clockwise, the corresponding horizontal electric scanning angle
Figure 100002_DEST_PATH_IMAGE023
Positive in the clockwise direction and negative in the counterclockwise direction; when the time window
Figure 100002_DEST_PATH_IMAGE024
To correct the time, the electric sweeping angle
Figure 100002_DEST_PATH_IMAGE025
Is positive, otherwise the angle is electrically swept
Figure 100002_DEST_PATH_IMAGE026
Is negative. Time window
Figure 100002_DEST_PATH_IMAGE027
Angle of electric sweeping
Figure 100002_DEST_PATH_IMAGE028
The conversion is carried out by the following formula:
Figure 100002_DEST_PATH_IMAGE029
Figure 100002_DEST_PATH_IMAGE030
defining a time window
Figure 100002_DEST_PATH_IMAGE031
In the range of
Figure 100002_DEST_PATH_IMAGE032
When the time window is set
Figure 100002_DEST_PATH_IMAGE033
In that
Figure 100002_DEST_PATH_IMAGE034
Horizontal azimuth electrical scan angle of scanned beam during internal change
Figure 100002_DEST_PATH_IMAGE035
Will also be in
Figure 100002_DEST_PATH_IMAGE036
Change in the same direction and with
Figure 100002_DEST_PATH_IMAGE037
The absolute value of (a) increases, and in order to keep the search power constant, the number of pulses of the programmed search beam increases accordingly, and the dwell time of the search beam increases accordingly.
And thirdly, judging whether the current system resources are sufficient or not by the radar master control scheduling system through a preset early warning threshold.
In equation (1), the beam dwell time is searched
Figure 100002_DEST_PATH_IMAGE038
Will result in
Figure 100002_DEST_PATH_IMAGE039
Reduction of time until
Figure 100002_DEST_PATH_IMAGE040
Is close to 0; when the time window
Figure 100002_DEST_PATH_IMAGE041
Slide rightward and gradually approach
Figure 100002_DEST_PATH_IMAGE042
When it comes to
Figure 100002_DEST_PATH_IMAGE043
Approaching 0, even if burst scheduling is not scheduled, it will not result inTime window
Figure 100002_DEST_PATH_IMAGE044
Continuing to increase; when the time window
Figure 100002_DEST_PATH_IMAGE045
Slide leftward and gradually approach
Figure 100002_DEST_PATH_IMAGE046
Will also result in
Figure 818216DEST_PATH_IMAGE003
Approaching 0, if this occurs, would result in a time window
Figure 100002_DEST_PATH_IMAGE047
After sliding to the right, the sliding is irreversible, and subsequent burst residency cannot be arranged; in order to avoid the irreversible time window sliding to the right, 1 insufficient early warning threshold is set
Figure 100002_DEST_PATH_IMAGE048
Resulting in horizontal electrical orientation after burst dwell scheduling
Figure 100002_DEST_PATH_IMAGE049
Is located at
Figure 100002_DEST_PATH_IMAGE050
And
Figure DEST_PATH_IMAGE051
in between, the search beam dwell time needs to be limited
Figure DEST_PATH_IMAGE052
In extreme cases, even the residence time of the search beam needs to be reduced, and meanwhile, an alarm of insufficient system resources is reported, so that the system resources can be quickly recovered to be normal.
And fourthly, reporting the result of the residual time resource in the sliding time window obtained by the analysis of the first step to the third step to display and control software of a sliding time window algorithm by the radar master control scheduling system.
On the main control software of the radar, when the self-adaptive scheduling is realized, the residual time resources in the sliding time window are reported to the display control software in real time; meanwhile, if the current sliding time is insufficient and the adaptive scheduling requirement cannot be met, reporting a resource shortage alarm, displaying the alarm real-time state on the display control, and simultaneously supporting the inquiry of the historical alarm state.
And fifthly, displaying the current use condition of the radar master control resource by the display control software in a display mode of a sliding window or an instrument panel.
The state monitoring interface and the control interface of the radar self-adaptive resource scheduling of the radar display and control software are used for realizing the dynamic display and adjustment of the scheduling state of the master control resource, and the display and control interface visually displays the current resource utilization rate of the radar in real time.
And sixthly, operating the display control software by a radar operator, combining the use condition of the radar resource and the sliding time accumulated in the radar searching process, scheduling the task and then issuing the task to the main control software to realize the dynamic scheduling and adjustment of the main control resource.
And the first step to the sixth step are a radar self-adaptive resource scheduling and visualization control unit, and after the radar self-adaptive resource scheduling and visualization control unit is completed, the first step to the sixth step are repeated to complete the next unit until the radar task is completed.
Compared with the prior art, the invention has the beneficial effects that:
the method for realizing the radar self-adaptive resource scheduling and the visual control can realize processing burst scheduling, support longer-time cross-wave-position resident scheduling, calculate the resident electrical scanning horizontal angle required to be scheduled next, and solve the problems of power reduction caused by overlarge electrical scanning angle in the horizontal direction and non-convergence of a self-adaptive scheduling algorithm on the basis of the traditional flexible resource scheduling; the master control scheduling system can carry master control software, display control software and a sliding window algorithm, so that the mutual conversion of the electrical scanning angle range and the residual time resource in the horizontal direction of the phased array radar and the collection and report of the current residual resource of the radar are realized; through sliding window and display control interface panel board, the current surplus condition of radar master control resource is shown directly perceived in real time, makes things convenient for radar operator in time to master current resource in service behavior to arrange the radar task rationally according to having resource utilization, realize radar resource maximize and utilize. The problems that radar resources existing in a traditional master control scheduling scheme are divided into a plurality of small fragments, cannot be used by other tasks, are low in resource utilization rate, cannot acquire a large radar non-search time slice, cannot arrange tasks which need to continuously occupy a plurality of wave position time slices including energy collection detection and target identification are solved; and the real-time data monitoring and historical data playback of radar residual resources can not be realized, and the resource utilization rate and the resource scheduling flexibility of the phased array radar are seriously influenced.
Drawings
FIG. 1 is a schematic diagram of the angle between the horizontal electrical scanning beam and the antenna normal of the phased array radar of the present invention;
FIG. 2 is a schematic diagram of the horizontal electrical scanning angle range of the phased array radar of the present invention;
FIG. 3 is a schematic diagram of the configuration and deployment of the main control software and the display control software according to the present invention;
FIG. 4 is a schematic diagram illustrating the status display and control of adaptive scheduling of the master control scheduling system according to the present invention;
fig. 5 is a schematic diagram of arranging free space search wave positions in master resource scheduling of a conventional phased array radar.
Reference numerals 1, 2, 3, 4, 5 and 6 in fig. 5 are numbers where search beams of a conventional phased array radar reside, and when the radar executes a search task, the search residences are sequentially scheduled according to the time sequence with numbers 1- > 2- > 3- > 4- > 5- > 6 in the figure.
Detailed Description
The method for implementing radar adaptive resource scheduling and visual control is described in further detail below with reference to the accompanying drawings and specific embodiments (see fig. 1 to 5):
the method for realizing the radar self-adaptive resource scheduling and the visual control comprises hardware of a radar main control scheduling system, wherein the software comprises main control software applying a sliding time window algorithm and display control software with a radar self-adaptive resource scheduling state monitoring interface and a control interface, (the radar is a phased array early warning radar, hereinafter referred to as radar; the radar main control scheduling system, the main control software and the display control software are all the prior art used on the existing phased array early warning radar); the method comprises the following specific steps:
firstly, analyzing the use condition of the current resource through a radar master control scheduling system:
in an on-machine scanning scene, the radar needs to integrate factors such as machine scanning speed, search beam width, residence time and the like to perform wave position arrangement, the factors determine the time interval between two times of beam scheduling, the arrangement of search beam residence is shown in figure 5, and figure 5 is a schematic diagram of arranging free space search beams of the traditional phased array radar master control resource scheduling. From the firstNThe search beam scheduling ends to
Figure DEST_PATH_IMAGE053
The time interval for starting scheduling of each search beam is
Figure DEST_PATH_IMAGE054
，
Figure 218627DEST_PATH_IMAGE054
Expressed by the following formula:
Figure DEST_PATH_IMAGE055
in the formula:Hthe unit of time consumed by each circle of machine scanning of the radar is second;
Figure DEST_PATH_IMAGE056
is from the first toNBeam to the firstNHorizontal angle of +1 beams in degrees;Ithe unit is second for the search beam dwell time.
And secondly, the radar master control scheduling system is superposed with master control software through a sliding time window algorithm to realize the radar master control self-adaptive scheduling:
assume that the actual scheduling interval is
Figure DEST_PATH_IMAGE057
After the radar supports horizontal electric scanning, allow
Figure DEST_PATH_IMAGE058
Is not equal to
Figure DEST_PATH_IMAGE059
Setting a time window based on the condition
Figure DEST_PATH_IMAGE060
Initialized to zero, and processed as follows:
1) When in use
Figure 433577DEST_PATH_IMAGE010
Time of day, time window
Figure 146318DEST_PATH_IMAGE011
Sliding in the positive direction;
2) When the temperature is higher than the set temperature
Figure 867149DEST_PATH_IMAGE012
Time, proceed time window
Figure 783284DEST_PATH_IMAGE013
Sliding reversely;
3) When in use
Figure 880553DEST_PATH_IMAGE014
Time window
Figure 713380DEST_PATH_IMAGE013
The change is not changed;
in summary, the time window
Figure 339533DEST_PATH_IMAGE013
The update expressible formula is:
Figure 257810DEST_PATH_IMAGE015
referring to the above formula (2), the burst scheduling task can be processed, and the details of the processing are as follows:
1) When the burst scheduling task is less, then
Figure 410968DEST_PATH_IMAGE016
Is less than
Figure 567142DEST_PATH_IMAGE017
Time window
Figure 895356DEST_PATH_IMAGE018
Will increase
Figure DEST_PATH_IMAGE061
；
2) When there are more burst scheduling tasks, then
Figure 300929DEST_PATH_IMAGE005
Is greater than
Figure 756312DEST_PATH_IMAGE020
Time window
Figure 298152DEST_PATH_IMAGE021
Will reduce
Figure 797267DEST_PATH_IMAGE022
；
Considering the limitation of the horizontal electric scanning range of the phased array radar, the residence time increasing factor caused by the reduction of the scanning power, and the reserved burst time required by the rapid retrace starting, the horizontal electric scanning angle is required
Figure DEST_PATH_IMAGE062
Sum time window
Figure DEST_PATH_IMAGE063
A definition is made. Then it is specified that: when the radar rotates clockwise, the corresponding horizontal electric broomAngle of rotation
Figure DEST_PATH_IMAGE064
Positive in the clockwise direction and negative in the counterclockwise direction; when the time window
Figure DEST_PATH_IMAGE065
To correct the time, the electric sweeping angle
Figure 267300DEST_PATH_IMAGE062
Is positive, otherwise the angle is electrically swept
Figure 244483DEST_PATH_IMAGE062
Is negative. (see fig. 1), fig. 1 is a schematic diagram of the horizontal electric scanning beam and the antenna normal included angle of the phased array radar of the present invention.
Time window
Figure 391562DEST_PATH_IMAGE065
Angle of electric broom
Figure 61578DEST_PATH_IMAGE062
The conversion is carried out by the following formula:
Figure 176164DEST_PATH_IMAGE029
Figure 691459DEST_PATH_IMAGE030
limiting a time window
Figure 207891DEST_PATH_IMAGE031
In the range of
Figure 295146DEST_PATH_IMAGE032
When the time window is set
Figure 897029DEST_PATH_IMAGE033
In that
Figure 216015DEST_PATH_IMAGE034
Horizontal azimuth electrical scan angle of scanned beam during internal change
Figure 586953DEST_PATH_IMAGE035
Will also be in
Figure 333192DEST_PATH_IMAGE036
Change in the same direction and with
Figure 907524DEST_PATH_IMAGE037
The absolute value of (a) increases, and in order to keep the search power constant, the number of pulses of the programmed search beam increases accordingly, and the dwell time of the search beam increases accordingly.
Thirdly, the radar master control scheduling system judges whether the current system resources are sufficient through a preset early warning threshold:
in equation (1), the beam dwell time is searched
Figure 30201DEST_PATH_IMAGE038
Will result in
Figure 255646DEST_PATH_IMAGE039
Reduction of time until
Figure 438366DEST_PATH_IMAGE040
Is close to 0; when the time window
Figure 749261DEST_PATH_IMAGE041
Slide rightward and gradually approach
Figure 924896DEST_PATH_IMAGE042
When it comes to
Figure 739269DEST_PATH_IMAGE043
Approaching 0, even without scheduling a burst schedule, does not result in a time window
Figure 358469DEST_PATH_IMAGE044
Continuing to increase; when the time window
Figure 156661DEST_PATH_IMAGE045
Slide leftward and gradually approach
Figure 621140DEST_PATH_IMAGE046
Will also result in
Figure 306330DEST_PATH_IMAGE003
Approaching 0, if this occurs, would result in a time window
Figure 830853DEST_PATH_IMAGE047
After sliding to the right, the sliding is irreversible, and subsequent burst residency cannot be arranged; in order to avoid the irreversible time window sliding to the right, 1 insufficient early warning threshold is set
Figure 116340DEST_PATH_IMAGE048
(see fig. 2), fig. 2 is a schematic diagram of the horizontal electrical scanning angle range of the phased array radar of the present invention; as shown in FIG. 2, after the burst parking schedule, horizontal electrical orientations result
Figure 118932DEST_PATH_IMAGE049
Is located at
Figure 173475DEST_PATH_IMAGE050
And
Figure 121096DEST_PATH_IMAGE051
in between, the search beam dwell time needs to be limited
Figure 628301DEST_PATH_IMAGE052
In extreme cases, even the residence time of the search beam needs to be reduced, and meanwhile, the alarm of insufficient system resources is reported, so that the system resources can be quickly recovered to be normal.
And fourthly, reporting the result of the residual time resource in the sliding time window obtained by the analysis in the first step to the third step to display and control software of a sliding time window algorithm by the radar master control scheduling system:
the method for realizing the radar self-adaptive resource scheduling and the visual control relates to two radar software system configuration items, and comprises the following steps: radar main control software and display control software; (see fig. 3), fig. 3 is a schematic configuration and deployment diagram of the main control software and the display control software of the present invention; as shown in fig. 3, on the main control software of the radar, the remaining time resources in the sliding time window are reported to the display control software in real time while the adaptive scheduling is realized; meanwhile, if the current sliding time is insufficient and the adaptive scheduling requirement cannot be met, reporting a resource shortage alarm, displaying the alarm real-time state on the display control, and simultaneously supporting the inquiry of the historical alarm state.
And fifthly, displaying the current use condition of the radar master control resource by the display control software in a display mode of a sliding window or an instrument panel:
the radar display and control software is additionally provided with a state monitoring interface and a control interface of the radar self-adaptive resource scheduling so as to realize the dynamic display and adjustment of the master control resource scheduling state, and the display and control interface visually displays the current resource utilization rate of the radar in real time. (see fig. 4), fig. 4 is a schematic diagram illustrating the adaptive scheduling status display and control of the master control scheduling system according to the present invention; as shown in fig. 4, by observing the position of the pointer, the use load condition of the current radar resource can be visually displayed: displaying the resource utilization condition by the color of the alarm state lamp in the interface: green indicates normal; yellow indicates less than 20% of remaining resources; red and flashing indicates that the current resource has failed to meet the task scheduling requirement.
Sixthly, operating the display control software by radar operators, arranging tasks according to the use condition of radar resources, and then issuing the tasks to the master control software to realize dynamic scheduling and adjustment of the master control resources:
accumulated sliding time in the radar searching process ensures maximum allowable arrangement in a sudden scene
Figure DEST_PATH_IMAGE066
The resident scheduling of time meets the time setting including high-resolution distance, flyback starting, target classification and identification, key target tracking and the likeComplex task scheduling with more requirement on fragment resources is adapted to various application scenes to be used; therefore, through the sliding time window mechanism from the second step to the fourth step, the sliding time accumulated in the radar searching process can meet the scheduling of complex tasks with more requirements on time slice resources; sliding time window by dynamic change
Figure DEST_PATH_IMAGE067
Ensuring maximum allowed scheduling in burst scenarios
Figure DEST_PATH_IMAGE068
The resident scheduling of time, satisfy the needs of multiple application scenarios, the said application scenario includes: high distance resolution, flyback starting, target classification and identification, key target tracking and the like.
And when one radar self-adaptive resource scheduling and visualization control unit is completed, repeating the first step to the sixth step to complete the next unit until the radar task is completed.
The method for realizing the radar self-adaptive resource scheduling and the visual control is simple and convenient to implement, has high resource utilization rate for the phased array radar, can particularly arrange tasks needing to continuously occupy a plurality of wave position time slices in real time, effectively improves the flexibility and the reliability of the self-adaptive resource scheduling of the master control scheduling system of the phased array radar, and has good use effect.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims (1)

1. A method for realizing radar self-adaptive resource scheduling and visual control comprises the following steps that hardware for realizing the method comprises a radar master control scheduling system, and software comprises master control software and display control software which use a sliding time window algorithm; the method is characterized by comprising the following steps:
firstly, analyzing the use condition of the current resource through a radar master control scheduling system:
in the case of the radar under the mechanical scanning scene, the wave position arrangement needs to be carried out by integrating all factors of the mechanical scanning speed, the searching beam width and the residence time, and the factors determine the time interval between two times of beam scheduling from the first to the secondNThe time interval from the end of the scheduling of one search beam to the start of the scheduling of the (N + 1) th search beam is
Figure DEST_PATH_IMAGE002
，
Figure DEST_PATH_IMAGE003
Expressed by the following formula:
Figure DEST_PATH_IMAGE004
in the formula:Hthe unit of time consumed by each circle of machine scanning of the radar is second;αis from the first toNThe horizontal angle of each beam to the (N + 1) th beam is in degrees;Ithe unit is the dwell time of the search beam in seconds;
and secondly, the radar master control scheduling system is overlapped with master control software through a sliding time window algorithm to realize the self-adaptive scheduling of the radar master control:
assume that the actual scheduling interval is
Figure DEST_PATH_IMAGE005
After the radar supports horizontal electric scanning, allow
Figure DEST_PATH_IMAGE006
Is not equal to
Figure DEST_PATH_IMAGE008
Setting a time window
Figure DEST_PATH_IMAGE009
Initialized to zero, processed as follows,
1) When in use
Figure DEST_PATH_IMAGE010
Time of day, time window
Figure DEST_PATH_IMAGE011
Sliding in the positive direction;
2) When the temperature is higher than the set temperature
Figure DEST_PATH_IMAGE012
Time of day, time window
Figure DEST_PATH_IMAGE013
Reverse sliding;
3) When the temperature is higher than the set temperature
Figure DEST_PATH_IMAGE014
Time window
Figure 471843DEST_PATH_IMAGE013
Keeping the original shape;
in summary, the time window
Figure 945550DEST_PATH_IMAGE013
The update expressible formula is:
Figure DEST_PATH_IMAGE015
referring to the above formula (2), the burst scheduling task can be processed, and the details of the processing are as follows:
1) When the burst scheduling task is less, then
Figure DEST_PATH_IMAGE016
Is less than
Figure DEST_PATH_IMAGE017
Time window
Figure DEST_PATH_IMAGE018
Will increase
Figure DEST_PATH_IMAGE019
；
2) When there are more burst scheduling tasks, then
Figure DEST_PATH_IMAGE020
Is greater than
Figure DEST_PATH_IMAGE021
Time window
Figure DEST_PATH_IMAGE022
Will reduce
Figure DEST_PATH_IMAGE023
；
When the radar rotates clockwise, the corresponding horizontal electric scanning angle
Figure DEST_PATH_IMAGE024
Positive in the clockwise direction and negative in the counterclockwise direction; when the time window
Figure DEST_PATH_IMAGE025
For correct timing, electrical sweeping angle
Figure 895402DEST_PATH_IMAGE024
Is positive, otherwise the angle is electrically swept
Figure 581598DEST_PATH_IMAGE024
Is negative, the time window
Figure 585326DEST_PATH_IMAGE025
Angle of electric sweeping
Figure 213622DEST_PATH_IMAGE024
Conversion is carried out by the following formula:
Figure DEST_PATH_IMAGE026
Figure DEST_PATH_IMAGE027
limiting a time window
Figure DEST_PATH_IMAGE028
In the range of
Figure DEST_PATH_IMAGE029
When the time window
Figure DEST_PATH_IMAGE030
In that
Figure DEST_PATH_IMAGE031
Horizontal azimuth electrical scan angle of scanned beam during internal change
Figure DEST_PATH_IMAGE032
Will also be at
Figure DEST_PATH_IMAGE033
Vary in the same direction and with
Figure DEST_PATH_IMAGE034
The absolute value of the search beam is increased, in order to keep the search power unchanged, the pulse number of the arranged search beam is correspondingly increased, and the dwell time of the search beam is correspondingly increased;
thirdly, the radar master control scheduling system judges whether the current system resources are sufficient through a preset early warning threshold:
in equation (1), the beam dwell time is searched
Figure DEST_PATH_IMAGE035
Will result in
Figure DEST_PATH_IMAGE036
Reduction of time until
Figure DEST_PATH_IMAGE037
Is close to 0; when the time window
Figure DEST_PATH_IMAGE038
Slide rightward and gradually approach
Figure DEST_PATH_IMAGE039
When it comes to
Figure DEST_PATH_IMAGE040
Approaching 0, even without scheduling a burst schedule, does not result in a time window
Figure DEST_PATH_IMAGE041
Continuing to increase; when the time window
Figure DEST_PATH_IMAGE042
Slide leftward and gradually approach
Figure DEST_PATH_IMAGE043
Will also result in
Figure DEST_PATH_IMAGE044
Approaching 0, if this occurs, it will result in a time window
Figure DEST_PATH_IMAGE045
After sliding to the right, the sliding is irreversible, and subsequent burst residency cannot be arranged; to avoid timeThe window is irreversible after sliding rightwards, and 1 insufficient early warning threshold is set
Figure DEST_PATH_IMAGE046
Resulting in horizontal electrical orientation after burst parking scheduling
Figure DEST_PATH_IMAGE047
Is located at
Figure DEST_PATH_IMAGE048
And
Figure DEST_PATH_IMAGE049
in between, the search beam dwell time needs to be limited
Figure DEST_PATH_IMAGE050
In extreme cases, even the residence time of the search beam needs to be reduced, and meanwhile, the alarm of insufficient system resources is reported so as to realize the rapid recovery of the system resources;
and fourthly, reporting the result of the residual time resource in the sliding time window obtained by the analysis in the first step to the third step to display and control software of a sliding time window algorithm by the radar master control scheduling system:
on the main control software of the radar, when the self-adaptive scheduling is realized, the residual time resources in the sliding time window are reported to the display control software in real time; meanwhile, if the current sliding time is insufficient and the self-adaptive scheduling requirement cannot be met, reporting an insufficient resource alarm, displaying an alarm real-time state on a display controller, and simultaneously supporting the inquiry of a historical alarm state;
and fifthly, displaying the current use condition of the radar master control resource by the display control software in a display mode of a sliding window or an instrument panel:
the state monitoring interface and the control interface of the radar self-adaptive resource scheduling of the radar display and control software are used for realizing the dynamic display and adjustment of the scheduling state of the master control resource, and the display and control interface visually displays the current resource utilization rate of the radar in real time;
sixthly, operating the display control software by a radar operator, combining the use condition of the radar resource and the sliding time accumulated in the radar searching process, scheduling the task and then transmitting the task to the main control software to realize the dynamic scheduling and adjustment of the main control resource;
and the first step to the sixth step are a radar self-adaptive resource scheduling and visualization control unit, and after the radar self-adaptive resource scheduling and visualization control unit is completed, the first step to the sixth step are repeated to complete the next unit until the radar task is completed.
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