CN107315891A - Airborne communication interference course line modeling and jamming Efficiency Evaluation method based on radiation source - Google Patents

Airborne communication interference course line modeling and jamming Efficiency Evaluation method based on radiation source Download PDF

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CN107315891A
CN107315891A CN201710579411.4A CN201710579411A CN107315891A CN 107315891 A CN107315891 A CN 107315891A CN 201710579411 A CN201710579411 A CN 201710579411A CN 107315891 A CN107315891 A CN 107315891A
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course line
interference
communication
jamming
distance
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CN107315891B (en
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辛晓晟
张花国
魏平
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University of Electronic Science and Technology of China
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/20—Instruments for performing navigational calculations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures

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  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

The invention belongs to communications jamming art field, and in particular to airborne communication interference course line modeling and jamming Efficiency Evaluation method based on radiation source.The present invention have devised two kinds of relatively good interference course lines for the ground communication net platform of multicast, and wherein racetrack course line is in the time for making also to reduce disturbance interrupted in the unit interval while any point meets energy domain pressing conditions on course line as far as possible.It finally also proposed a kind of method being estimated to jamming effectiveness.Comprise the following steps：Design two kinds of course line parameters；Sampled point is chosen from course line；Calculate the evaluation index each put；The evaluation index value in whole course line is obtained by the evaluation index value of each sampled point；To evaluation index normalization rear weight summation.

Description

Airborne communication interference course line modeling and jamming Efficiency Evaluation method based on radiation source
Technical field
The invention belongs to communications jamming art field, and in particular to airborne communication based on radiation source interference course line modeling with Jamming Efficiency Evaluation method.
Background technology
Relative to general fixed station jamming equipment, airborne jamming equipment has the following advantages that：Enemy can be arrived in by plane and be disturbed thunder Reach, interference distance is small；The advantage of oneself motion can be played, some special jamming programs are formed, to improve to destinations traffic net The interference protection measures such as the jamming effectiveness of platform；Therefore it is future electronic countermeasure system to carry out electronic interferences using airborne jamming equipment One main trend of development.
For the ground communication net platform of multicast system, generally only know the position of communication radiation source and can not learn and connect The position of debit.For example, fixed ground control's platform is remotely controlled commander to the motion receiving platform of surrounding, refer to Platform is waved as this unique radiation source of communication network platform, motion receiving platform, which is only received, not to be sent out.Communication network platform is without interference of having chance with Shi Youyi maximum effective communication distance, i.e. nature communication distance, motion receiving platform and the distance between the radiation source that communicates As long as being kept for the moment be less than nature communication distance.
According to actual conditions, the coverage in an airplane jamming source is lateral, in the range of this, and interfering beam can be with Free switching, as long as that is, target falls into the coverage of interference source and is considered as implementing interference.When a frame electronic warfare air plane Two wings respectively carry an interference source when, the common scope in left and right can be covered, such as the green overcast region institute in accompanying drawing 2 Show.
For ground fixed communication radiation source, electronic warfare air plane generally spirals and it is disturbed a long way off.Conventional two Plant typical case's interference course line：Round and racetrack.The interference source coverage that one frame electronic warfare air plane is carried only has, so round boat Line disturbs the time for always having nearly half for one week to be in disturbance interrupted state.The interference cover time can not change, and should allow round Course line radius is as small as possible, because average distance of the radius smaller interference source in course line away from destinations traffic net platform is also smaller, interference Effect also will accordingly get well.Racetrack course line can regard a round course line as plus two sections of straightways with similar, if can guarantee that dry Disturb machine moment on two sections of straightways and disturb effective, then racetrack course line is better than round course line from the point of view of time domain covering, Break period i.e. in the unit interval is small.
The content of the invention
The technical problems to be solved by the invention are, based on above-mentioned ground communication net platform, air interference resource characteristic and dry Flight-line design thought is disturbed, design electronic warfare air plane two quasi-representative disturbs the parameter in course line, and it is respective to its to contrast two class course lines Jamming effectiveness is estimated.
The technical scheme is that：
(1) limits value of interference distance is calculated
Due to interfering beam alignment communication radiation source, to ensure interference effect, interfering beam is taken just to cover whole nature Interference distance during communication zone disturbs the corresponding interference distance in arbitrfary point on course line to be less than the value as limits value.Limit Value processed is calculated by following formula：
In formula, DLimitationIt is the minimum limits value of interference distance, RIt is naturalIt is the natural communication distance of communication network platform；θ0.5It is interference The beam angle of wave beam.
(2) round course line is generated：
Round course line radius is taken as the radius of turn of electronic warfare air plane：R=RTurn。
(3) generation racetrack course line, idiographic flow is as follows：
1. racetrack course line circular arc portion radius is taken as the radius of turn of electronic warfare air plane：R=RTurn。
2. the straight length portion length of interference covering can be met constantly by calculating：
In formula, DLengthwise 1It is straight length portion length；RIt is naturalIt is the natural communication distance of communication network platform.
3. bringing blanket factor and natural communication distance into disturbance equation, obtain：
In formula, KjIt is blanket factor；PjtIt is jamming transmitter power；GjtIt is to disturb transmitting antenna in communications reception antenna side To gain；GjrIt is gain of the communications reception antenna in interference transmitting antenna direction；R is communication distance；PstIt is communication radiation source Power；GstIt is gain of the transmitting antenna in reception antenna direction that communicate；GsrIt is increasing of the communications reception antenna in transmitting antenna direction Benefit；RWith reference toIt is interference distance；
It is counter to solve RWith reference to, RWith reference toTo meet the maximum jamming range of pressing conditions.
4. calculate the maximum jamming range on racetrack course line under parameter current：
In formula, DFarIt is maximum jamming range；DLimitationIt is the minimum limits value of interference distance；RTurnIt is the turning of electronic warfare air plane Radius；DLengthwise 1It is straight length portion length；RIt is naturalIt is the natural communication distance of communication network platform；
If 5. RWith reference to≥DFar, then course line length of straigh line D is takenLengthwise=DLengthwise 1；If RWith reference to<DFar, then make：
In formula, RWith reference toTo meet the maximum jamming range of pressing conditions；DLimitationIt is the minimum limits value of interference distance；RTurnIt is The radius of turn of electronic warfare air plane；DLengthwise 1It is straight length portion length；RIt is naturalIt is the natural communication distance of communication network platform；
It is counter to solve course line length of straigh line DLengthwise。
(4) two class course lines are contrasted and jamming Efficiency Evaluation is carried out：
Selection interference distance, communication compacting distance, dry logical ratio and communication effective coverage area four indices are estimated, and are had Body step is as follows.
1. one group of representative sampled point is each taken out on round and racetrack course line.
2. calculate the interference distance R of each sampled pointj：
Only know radiation source positions due to actual, and do not know the position of receiver.So taking interference source to communication after interference Effective district is farthest, the average of closest approach is characterized, as shown in Figure 3, calculation formula：
Rj=(r1+r2)/2 (6)
In formula, r1It is closest approach of the interference source to communication effective district border after interference；r2Be interference source has to communicating after interference Imitate the solstics on area border；
3. the communication for calculating each sampled point is suppressed apart from Rc：
Communication compacting distance represent be interfered after maximum communication distance, take communication radiation source to communicate effective district most Far, the average of closest approach distance, as shown in Figure 4, calculation formula：
Rc=(r3+r4)/2 (7)
In formula, r3It is closest approach of the communication radiation source to communication effective district border；r4Be communication radiation source to communicate effective district The solstics on border；
4. calculating the dry of each sampled point logical compares JSR：
JSR=Rj/Rc (8)
In formula, RjIt is the interference distance of the sampled point；RcIt is the communication distance of the sampled point；
5. calculate the effective coverage area S that communicated after each sampled point interference.
6. the four indices of each sampled point in round course line are averaging to four global indexs as round course line successively Value：
7. the four indices of each sampled point in racetrack course line are averaging to four entirety as racetrack course line successively Desired value：
8. each index takes the maximum in two course lines to normalize：
Four normalization evaluation index values of every kind of course line type are intuitively presented with the mode of a corner figure, such as accompanying drawing 5 Shown, the maximum at each angle of corner figure is 1.
9. four evaluation index value weighted sums in pair two course lines are used as final jamming Efficiency Evaluation value：
Wherein, weighing vector default value isCan just it change according to actual needs.
10. the maximum course line of weighted sum value is jamming effectiveness preferably course line.
The beneficial effects of the invention are as follows：For multicast ground communication net platform have devised two kinds it is relatively good dry Course line is disturbed, wherein racetrack course line makes any point on course line meet and can also reduce list as far as possible while the pressing conditions of domain The time of disturbance interrupted in the time of position；It also proposed a kind of method being estimated to jamming effectiveness simultaneously.
Brief description of the drawings
Fig. 1 is the inventive method flow chart；
Fig. 2 is airplane jamming source coverage schematic diagram；
Fig. 3 is that interference distance calculates schematic diagram；
Fig. 4 calculates schematic diagram for communication compacting distance；
Fig. 5 is course line normalization evaluation index corner figure；
Fig. 6 is one result figure of emulation；
Fig. 7 is two result figures of emulation.
Embodiment
Below in conjunction with the accompanying drawings additional notes the present invention actual effect.
Emulation one
Assuming that the electronic warfare air plane radius of turn of carry interference source is 8km, interference source beam angle is 0.7rad, and target is led to Believe that the natural communication distance of net platform is 40km.As shown in Figure 6, the jamming Efficiency Evaluation value in round course line is 0.88 to simulation result, The jamming Efficiency Evaluation value in racetrack course line is 0.99.The racetrack it can be seen from simulation result figure and jamming Efficiency Evaluation value Course line relative will be better than round course line.
Emulation two
Assuming that the electronic warfare air plane radius of turn of carry interference source is 5km, interference source beam angle is 0.5rad, and target is led to Believe that the natural communication distance of net platform is 50km.As shown in Figure 7, the jamming Efficiency Evaluation value in round course line is 0.86 to simulation result, The jamming Efficiency Evaluation value in racetrack course line is 1.Runway is still it can be seen from simulation result figure and jamming Efficiency Evaluation value Type course line relative will be better than round course line.

Claims (1)

1. airborne communication interference course line modeling and jamming Efficiency Evaluation method based on radiation source, for ground communication net platform and dry The system for disturbing aircraft combination, it is characterised in that comprise the following steps：
S1, the limits value for calculating interference distance：
Interference distance when taking the interfering beam just to cover whole natural communication zone is as limits value, arbitrfary point on interference course line Corresponding interference distance can not be less than the value, and limits value is obtained by equation below 1：
In formula 1, RIt is naturalIt is the natural communication distance of ground communication net platform；θ0.5It is the beam angle of interfering beam；
S2, the round course line of generation：
Round course line radius is taken as the radius of turn of countermeasure aircraft：R=RTurn；
S3, generation racetrack course line, including：
S31, racetrack course line circular arc portion radius are taken as the radius of turn of countermeasure aircraft：R=RTurn；
S32, calculating can meet the straight length portion length of interference covering constantly：
In formula 2, DLengthwise 1It is straight length portion length；RIt is naturalIt is the natural communication distance of ground communication net platform；
S33, bring blanket factor and natural communication distance into disturbance equation, obtain：
In formula 3, PjtIt is jamming transmitter power；GjtIt is the gain for disturbing transmitting antenna in communications reception antenna direction；GjrIt is Gain of the communications reception antenna in interference transmitting antenna direction；RcIt is communication distance；PstIt is communication power of radiation source；GstIt is communication Gain of the transmitting antenna in reception antenna direction；GsrIt is gain of the communications reception antenna in transmitting antenna direction；RjBe interference away from From；It is counter to solve RWith reference to, RWith reference toTo meet the maximum jamming range of pressing conditions；
Maximum jamming range under S34, calculating parameter current on racetrack course line：
If S35, RWith reference to≥DFar, then course line length of straigh line D is takenLengthwise=DLengthwise 1；If RWith reference to<DFar, then make：
It is counter to solve course line length of straigh line DLengthwise；
S4, the round course line to step S2 and step S3 racetrack course line carry out jamming Efficiency Evaluation：
Select interference distance E (Rj), communication compacting apart from E (Rc), it is dry logical than E (JSR) and the effective coverage area E (S) four that communicates Index is estimated, including：
S41, one group of representative sampled point of respective taking-up on round and racetrack course line；
S42, the interference distance R for calculating each sampled pointj：
Take the interference source to communication effective district after interference is farthest, closest approach average is characterized, calculation formula：
Rj=(r1+r2)/2 (formula 6)
S43, the communication of each sampled point of calculating are suppressed apart from Rc：
Take communication radiation source to communication effective district farthest, the average of closest approach distance, calculation formula：
Rc=(r3+r4)/2 (formula 7)
S44, calculate the dry of each sampled point and logical compare JSR：
JSR=Rj/Rc(formula 8)
Communicate effective coverage area S after S45, each sampled point interference of calculating；
S46, the four indices of each sampled point in round course line are averaging to four global index values as round course line successively：
S47, four entirety being averaging the four indices of each sampled point in racetrack course line successively as racetrack course line refer to Scale value：
S48, each index take the maximum in two course lines to normalize：
S49, four evaluation index value weighted sums to two course lines are used as final jamming Efficiency Evaluation value：
Wherein, weighing vector default value isCan just it change according to actual needs；Weighted sum value is maximum Course line be jamming effectiveness preferably course line.
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