CN104077488A - Rotary phased array radar sliding window resource scheduling technique based on sectors - Google Patents
Rotary phased array radar sliding window resource scheduling technique based on sectors Download PDFInfo
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Abstract
The invention belongs to the phased array radar resource scheduling field and relates to a sliding window resource scheduling technique based on sectors. The technique is mainly applicable to managing and distributing the resources of two-dimensional rotary phased array radars. A radar system is used for carrying out resource distribution for multiple functions and multiple tasks by sectors, and in each sector, the residence time of tasks of each type is adaptively adjusted according to the capacity of the tasks. The sliding window resource scheduling technique refers to taking the task load conditions within one sector starting from the current scheduling interval into account during resource distribution to the current scheduling interval, and taking the task loads within one sector starting from next interval into account during the next scheduling interval, thereby forming sliding window type resource scheduling. The residence time distribution proportions of the tasks of various types are determined according to different working modes of the radars, and the detection distances of the radars, the search data rate, the fine tracking batch number, the confirmation batch number and the like can be adaptively adjusted according to the time obtained by the tasks, and therefore, multiple functions and multiple tasks are realized simultaneously, and the flexibility and the operational effectiveness of the two-dimensional rotary phased array radars are improved.
Description
Technical field
The invention belongs to multifunction array radar scheduling of resource field, particularly resource management and distribution technique in a kind of scheduling of resource of Two Dimensional Rotating phased-array radar.
Background technology
Phased-array radar resource is controlled flexibly, can be according to external environment condition and demand, switch different working method (generally including tracing mode, search pattern etc.).Each task resource allocation proportion difference under different operating mode.The rationally resource of real-time distribution radar, becomes the key factor of the powerful ability to work of delivery system.
The scheduling of resource technology of Chinese scholars and the engineering staff phased-array radar to stationary plane battle array, conduct in-depth research, the representational scheduling of resource technology having based on knowledge, quality-of-service based scheduling of resource technology, the scheduling of resource technology based on fuzzy logic.These technology are applied in the scheduling of resource of stationary plane battle array, obtain good effect.Rotating phased array radar has the feature of himself than stationary plane battle array phased-array radar.
. antenna 360 degree rotations, the normal direction of face battle array can arrive arbitrary orientation.
. to arbitrary orientation, time of 2/3rds antenna beam irradiate less than.
. when search and tracking, depart from antenna normal direction α on ripple position, signal to noise ratio (S/N ratio) can reduce cos
3(α).And the wasting of resources that the scanning of stationary plane battle array off-normal direction causes cannot make up, and rotating phased array radar can by task as far as possible layout save the resource of system in normal direction.
According to above analysis, below should noting in the scheduling that is rotated phased-array radar some:
1. the priority of task height no matter, if can not carry out in official hour section, task cannot complete in this circle;
2. wave beam can, in the positive and negative 45 degree interscans of normal direction, ensure the dirigibility of scheduling of resource;
3. to ensure effective execution of this circle pop-up mission, as flyback is confirmed and catches.
Under this background, the sliding window scheduling of resource technology based on sector is proposed herein.
Summary of the invention
The present invention is the sliding window scheduling of resource of the rotating phased array radar technology based on sector, distribute the time resource of radar by sector, in sector, adjust dynamically detection range, the data transfer rate of search and the spatial domain, the elevation angle of search of radar according to the priority of the charge capacity of task and task.In the time of the task layout of carrying out scheduling interval, consider the task load amount in next sector, the sector time deducts essence with really appointing after the task such as catch, and by looking into precalculated scan table, determines distance or the elevation angle layer that can survey excess time.Scan table from the maximum detectable range of radar every 10 kilometers or 20 kilometers design steppings.Inquiry during the time of remaining time from scan table adds up to, finds deserved distance and the elevation angle.This algorithm structure is simple, and clear logic is easy to Project Realization.Below in conjunction with accompanying drawing 1, the present invention is described in further detail.
Brief description of the drawings
Accompanying drawing 1 is the sliding window scheduling of resource schematic diagram of two-dimensions rotating phased array radar based on sector.
Accompanying drawing 2 is Two Dimensional Rotating phased-array radar dynamic time window setting technique process flow diagram.
Embodiment
The present invention adopts sector to distribute radar resource, and concrete implementation step is:
1. the size of subregion is determined
:
If the following parameter of supposition radar: wave beam orientation size is 1.5 °, and the data transfer rate of system is 2-12 second, and scheduling interval is 50 seconds, and it is 9 ° that each scheduling interval internal antenna turns over.Be the requirement of 12 seconds to the maximum according to system data rate, the size of subregion should be 6 integral multiple of orientation number:
Partition size=1.5 degree × 6 × N (N is integer, to be determined);
The size of subregion should comprise the integral multiple of scheduling interval:
Partition size=9 degree × M (M is integer, to be determined);
Partition size should be less than 90 ° of smart requirements with target lot number in sector in scheme:
Subregion great little ≤90 degree;
The impact of partition size on resource distribution dirigibility.According to the original intention of subregion, system is distributed time resource by sector, and under the mode of search, deduction falls to follow the tracks of, and confirms, the task such as catch after the remaining time distribute to uniformly orientation, look into precalculated scan table and determine the distance of search and the number at the elevation angle.
The size of in sum, getting subregion is 45 degree.In subregion, comprise 30 orientation; 5 dispatching cycles; 5 data processing sectors; The scheduling of each subregion is interrupted for 250ms.
2. the scheduling of resource process of sector
Search mission in rotating phased array sector and essence are followed, slightly before the tasks carrying of sector, are determined in this circle with task.But flyback confirms and catches to be burst in this circle.If each sector reserves the residence time of the business of changing in advance, when without task, cause great waste, and cannot estimate the number of task.Taked the sliding window resource allocation policy of scheduling interval based on sector for this reason.First the maximal value of calculating the time that each scheduling interval task layout needs, is assumed to be t, starts the task of next scheduling interval of layout within last t time of each scheduling interval.Before layout task, write receiving the confirmation of system and the task of catching the task list for the treatment of layout.When layout task starts, the task of receiving system is put into next scheduling interval.
In the time of the task of the next scheduling interval of layout, first read 45 degree after this interval, namely all tasks of sector-size.In sector, resource deducts essence with confirming after time of catching T.T., the remaining time, is evenly distributed in each orientation, according to the distance of how many definite detections of distributing the time.
3. sector resources allocation flow
A) determine the task kind of radar: search, essence are confirmed, catch, slightly followed with, flyback;
B) add up in this sector all tasks except search;
C) temporal summation that counting statistics required by task is out wanted;
D) sector T.T. resource deducts temporal summation, obtains the time of residue search;
E) data transfer rate of systematic search design, finds out the orientation of the interior required search of this circle;
F) be assigned to uniformly excess time in the orientation that needs search;
G) determine according to system requirements the elevation angle layer of searching for;
H) determine the distance of searching for according to scan table;
I) the task queue that forms search according to scan table.
4. the wave beam layout in scheduling interval:
A) take out and expect to drop on launch time the task in this scheduling interval;
B) sort according to the priority of task;
C) start the residence time of cumulative task from high priority;
D) stop adding up when the time with while equaling scheduling interval;
E) not cumulative task joins delay task list;
F) cumulative task according to expecting to clap order launch time;
G) form and carry out queue.
Claims (6)
1. the sliding window scheduling of resource of the rotating phased array radar based on a sector technology, it is characterized in that: radar is by sector Resources allocation, carry out the task load amount that the resource of scheduling interval divides timing to consider whole sector, the scope of sector is along with scheduling interval moves backward with the form of sliding window, in sector, follow the charge capacity according to task, according to the working method of radar, the detection range of adaptive adjustment radar, the detection elevation angle and search data rate.
2. according to the sliding window scheduling of resource of the rotating phased array radar based on sector described in claim 1 technology, it is characterized in that: the resource of radar system mainly refers to time resource, how much definite divided by the number of sector by the time of the every circle of radar sector resources is.
3. according to the sliding window scheduling of resource of the rotating phased array radar based on sector described in claim 1 technology, it is characterized in that: the charge capacity of task refers to the confirmation of radar, essence is followed, slightly follow and catch task, not comprising search mission, is 1 o'clock in task charge capacity, and All Time is used for searching for, task load amount increases, and reduces the time of search mission.
4. according to the sliding window scheduling of resource of the rotating phased array radar based on sector described in claim 1 technology, it is characterized in that: current scheduling interval starts, according to sector-size, conventionally represent with orientation size, determine the sector that resource is distributed, in the time carrying out the scheduling at next interval, the sector that resource is distributed also slides backward a scheduling interval accordingly, i.e. sliding window dispatching technique.
5. according to the sliding window scheduling of resource of the rotating phased array radar based on sector described in claim 4 technology, it is characterized in that: a sector resources scheduling process is, total time deducts the time of definite search of time of the negative charge capacity of task, according to working method established data rate, determine the orientation number of searching for this sector, in orientation number, obtain the residence time in each orientation total search time, determines the distance of search according to residence time.
6. according to the sliding window scheduling of resource of the rotating phased array radar based on sector described in claim 5 technology, it is characterized in that: the distance of determining search according to residence time, obtain corresponding parameter by looking into the scan table that calculating designs in advance, the design of scan table is by the wave beam residence time on the cumulative elevation angle, apart from establishment, realize adaptive scheduling according to the warning of stepping.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106201704A (en) * | 2016-07-22 | 2016-12-07 | 中国船舶重工集团公司第七二四研究所 | A kind of rotating phased array radar task load method for dynamically balancing |
| CN107505599A (en) * | 2017-07-27 | 2017-12-22 | 中国船舶重工集团公司第七二四研究所 | A kind of rotating phased array radar electron beam points to real-time control method |
| CN108333583A (en) * | 2018-01-22 | 2018-07-27 | 西安电子科技大学 | The resource allocation methods of biobjective scheduling are searched for and tracked based on phased-array radar |
| CN109143178A (en) * | 2018-08-02 | 2019-01-04 | 西安电子工程研究所 | A kind of position fast adaptation method of ground radar application |
| CN109581341A (en) * | 2018-12-07 | 2019-04-05 | 中国船舶重工集团公司第七二四研究所 | A kind of change swing circle phased array radar track task method of combination |
| CN109581342A (en) * | 2018-12-07 | 2019-04-05 | 中国船舶重工集团公司第七二四研究所 | A kind of rotating phased array radar complete period time resource distribution method |
| CN110456338A (en) * | 2019-07-20 | 2019-11-15 | 中国船舶重工集团公司第七二四研究所 | A kind of multiband integrates detection system essence with method for allocating tasks |
| CN111537956A (en) * | 2020-04-02 | 2020-08-14 | 北京电子工程总体研究所 | Single radar responsibility sector determination method and system based on real-time and spatial situations |
| CN111796268A (en) * | 2020-06-12 | 2020-10-20 | 中国船舶重工集团公司第七二四研究所 | Generalized time window-based tracking beam arrangement method for rotary phased array radar |
| CN111813511A (en) * | 2020-06-12 | 2020-10-23 | 中国船舶重工集团公司第七二四研究所 | Rotary phased array radar resource scheduling method based on multiple interrupts |
| CN112711482A (en) * | 2021-02-23 | 2021-04-27 | 航天南湖电子信息技术股份有限公司 | Method for realizing radar self-adaptive resource scheduling and visual control |
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Cited By (19)
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| CN106201704B (en) * | 2016-07-22 | 2019-03-29 | 中国船舶重工集团公司第七二四研究所 | A kind of rotating phased array radar task load method for dynamically balancing |
| CN106201704A (en) * | 2016-07-22 | 2016-12-07 | 中国船舶重工集团公司第七二四研究所 | A kind of rotating phased array radar task load method for dynamically balancing |
| CN107505599B (en) * | 2017-07-27 | 2020-06-09 | 中国船舶重工集团公司第七二四研究所 | Electronic beam pointing real-time control method for rotary phased array radar |
| CN107505599A (en) * | 2017-07-27 | 2017-12-22 | 中国船舶重工集团公司第七二四研究所 | A kind of rotating phased array radar electron beam points to real-time control method |
| CN108333583B (en) * | 2018-01-22 | 2021-08-03 | 西安电子科技大学 | Resource allocation method based on dual-target optimization of phased array radar search and tracking |
| CN108333583A (en) * | 2018-01-22 | 2018-07-27 | 西安电子科技大学 | The resource allocation methods of biobjective scheduling are searched for and tracked based on phased-array radar |
| CN109143178A (en) * | 2018-08-02 | 2019-01-04 | 西安电子工程研究所 | A kind of position fast adaptation method of ground radar application |
| CN109581341A (en) * | 2018-12-07 | 2019-04-05 | 中国船舶重工集团公司第七二四研究所 | A kind of change swing circle phased array radar track task method of combination |
| CN109581342A (en) * | 2018-12-07 | 2019-04-05 | 中国船舶重工集团公司第七二四研究所 | A kind of rotating phased array radar complete period time resource distribution method |
| CN109581342B (en) * | 2018-12-07 | 2022-12-27 | 中国船舶重工集团公司第七二四研究所 | Full-period time resource allocation method for rotary phased array radar |
| CN109581341B (en) * | 2018-12-07 | 2022-12-27 | 中国船舶重工集团公司第七二四研究所 | Variable rotation period phased array radar tracking task arrangement method |
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| CN111537956B (en) * | 2020-04-02 | 2022-09-23 | 北京电子工程总体研究所 | Single radar responsibility sector determination method and system based on real-time and spatial situations |
| CN111537956A (en) * | 2020-04-02 | 2020-08-14 | 北京电子工程总体研究所 | Single radar responsibility sector determination method and system based on real-time and spatial situations |
| CN111796268B (en) * | 2020-06-12 | 2022-05-20 | 中国船舶重工集团公司第七二四研究所 | Generalized time window-based rotating phased array radar tracking beam arranging method |
| CN111813511A (en) * | 2020-06-12 | 2020-10-23 | 中国船舶重工集团公司第七二四研究所 | Rotary phased array radar resource scheduling method based on multiple interrupts |
| CN111796268A (en) * | 2020-06-12 | 2020-10-20 | 中国船舶重工集团公司第七二四研究所 | Generalized time window-based tracking beam arrangement method for rotary phased array radar |
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