CN104463463A - Phased array radar self-adaptive resource scheduling method based on wave parking rhythm and event driving - Google Patents
Phased array radar self-adaptive resource scheduling method based on wave parking rhythm and event driving Download PDFInfo
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Abstract
The invention relates to a phased array radar self-adaptive resource scheduling method based on a wave parking rhythm and event driving. Resources such as phased array radar time and energy are limited and need to be dynamically allocated and effectively managed so that the phased array antenna beam agility ability can be given full play to. Meanwhile, radar work modes and work parameters are adjusted in a self-adaptive mode to achieve multiple tasks and multiple functions. The invention provides a phased array radar self-adaptive resource scheduling strategy based on the wave parking rhythm and event driving. The scheduling strategy is combined with work characteristics of the modern radar wave parking rhythm, wave parking serves as a time interval of task scheduling, a computer is scheduled to synchronize radar wave parking, organic combination of search management and tracking management is achieved and can better adapt to work characteristics of a phased array radar, the scheduling success rate and the time utilization rate are high, response to external random events has flexibility, dynamics, quickness and broad-spectrum adaptability, and the method is an optimized scheduling mode.
Description
Technical field
The invention belongs to radar and computing machine two technical fields, relate to the resource regulating method of phased-array radar, be specifically related to a kind of based on the bat of ripple resident and event driven phased-array radar adaptive resource dispatching method.
Background technology
The resource-constraineds such as phased-array radar time, energy, need to carry out dynamic assignment and effectively management to it, to give full play to the prompt change ability of phase array antenna beam, adjust radar operation mode and running parameter adaptively, realize multiple-task and several functions.Traditional template or adaptive resource scheduling, radar can only complete specific task at specific time quantum, can not perform by task priority in real time, and time quantum is almost fixed, and causes a large amount of time resource wastes.
Take a broad view of the source scheduling mode of the outer phased-array radar of Present Domestic, be generally divided into fixed form method, multi-template method, segment template method and adaptive scheduling method.First three methods has been not suitable with modern multi-mission radar, and traditional adaptive scheduling method is divided into free window and without time window adaptive scheduling algorithm, and derivative based on scheduling benefits and the various adaptive scheduling algorithms based on pulse interlacing thus.These adaptive scheduling algorithms, its principle is all by priority scheduling in guarantee high priority radar event, under the principle making the radar-free time the least possible, scheduler module reads the radar event request participating in this scheduling interval, according to fixing principle, radar event is analyzed, determine the current event being badly in need of dispatching most, sent into and perform queue, and radar available resources are distributed to these events, and the event that temporary respite and decision are abandoned is delivered to delay queue respectively and deletes queue; Radar event in delay queue participates in the lexical analysis of next scheduling interval, and the radar event of deleting in queue will be dropped.Its scheduling success ratio and time availability all can not reach 100%, average time offset rate can not level off to 0, and the event that the random new priority produced is high in a scheduling interval can not perform immediately at this scheduling interval, can only wait until that next scheduling interval performs after carrying out lexical analysis, and long-time execution can accumulate by formation control word, causes system performance sharply to decline.
Summary of the invention
The technical matters solved
In order to avoid the deficiencies in the prior art part, the present invention proposes a kind of based on the bat of ripple resident and event driven phased-array radar adaptive resource dispatching method, is a kind of New Type Radar resource regulating method wasted efficiently, without time resource, preferentially perform high task priority.The method can be applicable to the fields such as phased array scanning radar, is specially adapted to be operated in the phased-array radar under TAS pattern.
Technical scheme
A kind of based on the bat of ripple resident and event driven phased-array radar adaptive resource dispatching method, it is characterized in that: the timing of radar master station must produce next ripple SYN in scheduling signals before each ripple stays end, and step is as follows:
Step 1: event queue is created to radar event;
Step 2: according to priority query request, obtains the highest-ranking event of current time and stays execution at next ripple, more new events place queue simultaneously;
Each ripple stays the data report that period can receive signal processor simultaneously, by the analysis to data report, produces event automatically, and adds in corresponding event queue.
Described radar event is 6 class events, and prioritization is as follows:
1, target following event is being followed;
2, target identification event is being followed;
3, fresh target follows the tracks of event;
4, event is confirmed;
5, search events;
6, other events.
Described ripple stay initial time can not with follow the tracks of the start time complete matching of event, twice tracking time interval can produce the error that maximum half-wave stays the time.
Every frame data of described tracking data must joining day stamp.
Described radar event expands event type in difference in functionality radar situation.
Other events in described radar event comprise line fault detect, active interference detecting, the blind or phase alignment of near region benefit.
Beneficial effect
The one that the present invention proposes is clapped and event driven phased-array radar adaptive resource dispatching method based on ripple resident, the resource-constraineds such as phased-array radar time, energy, need to carry out dynamic assignment and effectively management to it, to give full play to the prompt change ability of phase array antenna beam, simultaneously, adjust radar operation mode and running parameter adaptively, realize multiple-task and several functions.Propose a kind of based on the bat of ripple resident and event driven phased-array radar adaptive resource scheduling strategy herein, the work characteristics that this scheduling strategy is clapped in conjunction with modern radar ripple resident, the time interval as task scheduling is stayed using ripple, the synchronous radar wave of dispatching is stayed, achieve the combination of search management and tracing management, can adapt with the operating characteristic of phased-array radar better, scheduling success ratio and time availability high, having dirigibility, dynamic, rapidity and wide spectrum adaptability to the response of outside random occurrence, is a kind of scheduling mode of optimization.
Compared with prior art, the present invention has following beneficial effect:
(1) meeting the operating characteristic of phased-array radar, is a kind of scheduling mode of optimum;
(2) to the response of outside random occurrence, there is dirigibility, dynamic, rapidity and wide spectrum adaptability;
The scheduling success ratio of (3) 100%, be close to 100% time availability and average time offset rate level off to 0 high performance index;
(4) in event queue, the event of limit priority is always performed at first;
(5) resource dispatching strategy combines search management, tracing management, and realizes three and organically combine;
(6) can answer that higher level accuses, the dynamic need of Fire Unit and the machine, these demands to be decomposed fast as during ripple resident claps, and by task priority controlled arrangement.
Accompanying drawing explanation
Fig. 1 stays scheduling signals (SYN) figure for realizing ripple of the present invention
Fig. 2 typically claps and event driven scheduling of resource block diagram based on ripple resident
Fig. 3 is time availability 100%, follows the tracks of the tracking schematic diagram that average time offset rate is not 0
Fig. 4 is 0 for following the tracks of average time offset rate, and time availability follows the tracks of schematic diagram close to 100%
Embodiment
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
Phased-array radar has stays with ripple the feature that (CPI) is beat work in time, ripple is in being the indivisible minimum time unit that radar normally works, therefore, staying as beat carries out scheduling of resource with ripple is the inevitable choice that radar realizes optimum scheduling of resource.Therefore, source scheduling mode of the present invention is stayed as beat by radar scheduler module by ripple, is carried out radar resource scheduling in interior event for driving with ripple.Scheduler module stays scheduling signals (SYN) for beat with ripple, stays interior event for drive source, dynamically update event queue, always event the highest for priority preferentially performed according to the data report of signal processor or combat duty demand with ripple.With the resident duration of dynamic wave beam, by connection between event and event, reach the nil waste of time resource.And also can make a response fast to artificial newly-increased operation planning tasks, be decomposed into rapidly ripple and stay interior event and according to priority order execution, therefore by force, event distribution is according to priority controlled for flexible configuration, freedom, extensibility.
Based on the bat of ripple resident and the scheduling of event driven phased-array radar adaptive resource, condition precedent is that the timing of radar master station must stay scheduling signals (SYN) by generation next ripple before each ripple stays end, sees Fig. 1.SYN makes the scheduling sequential of scheduler module stay synchronous with the minimum time unit ripple that radar can not be split again, and scheduling time inter is dynamic ripple and stays the time, no longer needs the scheduling time inter design carrying out traditional adaptive scheduling method.Ripple triggering in scheduling signals scheduling feature module, for the event (Event) that Radar Task scheduling instance faces, according to the Event Priority that program design specifies, determines that next ripple stays the highest priority event that must perform.
In general, radar can design 6 class events (difference in functionality radar can expand event type) by demand, sorts by priority as follows:
(1) target following event is being followed;
(2) target identification event is being followed;
(3) fresh target follows the tracks of event;
(4) event is confirmed;
(5) search events;
(6) other events, as blind, phase alignment etc. is mended in online fault detect, active interference detecting, near region.
Create event queue (Event queue) respectively to this 6 class event, when SYN arrives, according to priority query request, obtains the highest-ranking event of current time and stays execution at next ripple, more new events place queue simultaneously.Each ripple stays the data report that period can receive signal processor simultaneously, by the analysis to data report, produces event automatically, and adds in corresponding queue.Typically see Fig. 2 based on the bat of ripple resident and event driven radar resource scheduling process for one.As shown in Figure 2, scheduling strategy is before determining that next ripple stays the event that need perform, call search manager and tracking manager distributes to event again, make by a radar resource scheduling strategy, search management and tracing management organically to be combined, reach radar time resource and energy resource utilizes the most fully.
This source scheduling mode carries out discrete timing tracking by following the tracks of timer to target, after timing arrives, send target following request, this tracking event is inserted and is followed the tracks of in event queue by scheduler module in current wave beam residence time, and according to priority performs at next wave beam residence time.Follow the tracks of Timer interval dynamically adjustable, can arrange according to artificial parameter, time resource service condition, target tracking data rate etc. adjust dynamically.
Performance index aspect, the scheduling success ratio of this resource dispatching strategy can reach 100%, and except tracking event, average time offset rate is 0.For tracking, adopt discrete timing mode to dispatch, fixed time interval determines (being generally 0.1s ~ 2s) by tracking manager.Adopt discrete timing mode carry out tracking can not meet simultaneously average time offset rate be 0 and time availability be 100%, below respectively to meet time availability be 100% and meet and follow the tracks of average time offset rate 0 and describe respectively.
When meeting time availability and being 100%, ripple stay initial time can not with follow the tracks of the start time complete matching of event, twice tracking time interval can produce the error that maximum half-wave stays the time, and namely tracking time skew is not 0, but whole average time offset rate is close to 0.Its schematic diagram is as in Fig. 3, figure, and following the tracks of fixed time interval is that 1s, T0 ~ T3 is all less than half-wave in the time.For improving the later stage to the processing accuracy of tracking data, every frame data must joining day stamp.
Certainly, to ask, to follow the tracks of average time offset rate be 0 (namely carrying out accurate timing tracking to target), will certainly generation time fragment, makes full use of to enable time fragment, ripple can be performed during this period and mend the events such as blind and phase alignment, as Fig. 4 in the near region that the time is short.In this case, the utilization factor of time is also be close to 100%.
It can thus be appreciated that when the tracking timing error allowed, time resource is without any waste, and when accurate timing is followed the tracks of, the waste of time resource is also minimum, thus makes the time resource of radar be utilized.
Phased-array radar has stays with ripple the feature that (CPI) is beat work in time, ripple is in being the indivisible minimum time unit that radar normally works, therefore, staying as beat carries out Time Resource Scheduling with ripple is the inevitable choice that radar realizes optimal time scheduling of resource.
The timing of radar master station each ripple stay terminate before produce next ripple and stay scheduling signals, beam dispath signal make the scheduling sequential of scheduler module and the minimum time unit ripple that radar can not be split again synchronous in (CPI).
Stay interior event for drive source with ripple, promptly can be broken down into ripple to all incoming tasks and stay interior event, and according to priority order performs, flexible configuration, freedom, extensibility are strong.
Ripple is more in interior event type, and the performance period is not quite similar, and therefore, adopts the resident duration of dynamic wave beam, ripple is stayed seamless link between interior event and event, thus reaches the nil waste of time resource.
Claims (5)
1. clap and an event driven phased-array radar adaptive resource dispatching method based on ripple resident, it is characterized in that:
The timing of radar master station must produce next ripple SYN in scheduling signals before each ripple stays end, and step is as follows:
Step 1: event queue is created to radar event;
Step 2: according to priority query request, obtains the highest-ranking event of current time and stays execution at next ripple, more new events place queue simultaneously;
Each ripple stays the data report that period can receive signal processor simultaneously, by the analysis to data report, produces event automatically, and adds in corresponding event queue.
Described radar event is 6 class events, and prioritization is as follows:
1, target following event is being followed;
2, target identification event is being followed;
3, fresh target follows the tracks of event;
4, event is confirmed;
5, search events;
6, other events.
2. clap and event driven phased-array radar adaptive resource dispatching method based on ripple resident according to claim 1, it is characterized in that: described ripple stay initial time can not with follow the tracks of the start time complete matching of event, twice tracking time interval can produce the error that maximum half-wave stays the time.
3. clap and event driven phased-array radar adaptive resource dispatching method based on ripple resident according to claim 1, it is characterized in that: every frame data of described tracking data must joining day stamp.
4. clap and event driven phased-array radar adaptive resource dispatching method based on ripple resident according to claim 1, it is characterized in that: described radar event expands event type in difference in functionality radar situation.
5. clap and event driven phased-array radar adaptive resource dispatching method based on ripple resident according to claim 1, it is characterized in that: other events in described radar event comprise line fault detect, active interference detecting, the blind or phase alignment of near region benefit.
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| CN109597064A (en) * | 2018-11-27 | 2019-04-09 | 西安电子工程研究所 | A kind of fixed tracking data transfer rate is searched with integrated phased-array radar time sequence design method |
| CN109709535A (en) * | 2018-12-10 | 2019-05-03 | 电子科技大学 | A kind of wave beam dwell schedule method for collaborative distributed system |
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| CN105046412A (en) * | 2015-06-29 | 2015-11-11 | 中国船舶重工集团公司第七二四研究所 | Passive phased array radar multistation joint resource scheduling and distribution method |
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| 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 |
| 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 |
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| CN109799491A (en) * | 2019-02-27 | 2019-05-24 | 珠海格力电器股份有限公司 | Method and device for controlling working mode of microwave radar equipment |
| CN110009196B (en) * | 2019-03-13 | 2022-10-14 | 电子科技大学 | Digital array radar self-adaptive resident scheduling method based on pulse interleaving |
| CN110009196A (en) * | 2019-03-13 | 2019-07-12 | 电子科技大学 | A kind of adaptive dwell schedule method of Digital Array Radar based on pulse interlacing |
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