CN107315891B - 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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CN107315891B
CN107315891B CN201710579411.4A CN201710579411A CN107315891B CN 107315891 B CN107315891 B CN 107315891B CN 201710579411 A CN201710579411 A CN 201710579411A CN 107315891 B CN107315891 B CN 107315891B
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course line
interference
communication
distance
jamming
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CN107315891A (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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Abstract

The invention belongs to communications jamming art fields, and in particular to airborne communication interference course line modeling and jamming Efficiency Evaluation method based on radiation source.The present invention has devised two kinds of relatively good interference course lines for the ground communication net platform of multicast, and wherein racetrack course line also reduces the time of disturbance interrupted in the unit time as far as possible while any point on making course line meets energy domain pressing conditions.It finally also proposed the method that a kind of pair of jamming effectiveness is assessed.The following steps are included: designing two kinds of course line parameters；Sampled point is chosen from course line；Calculate the evaluation index of each point；The evaluation index value in entire course line is found out 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 fields, and in particular to airborne communication based on radiation source interference course line modeling with Jamming Efficiency Evaluation method.
Background technique
Relative to general fixed station jamming equipment, airborne jamming equipment has the advantages that can arrive in enemy by plane is disturbed thunder It reaches, interference distance is small；The advantage that oneself movement can be played, forms some special jamming programs, to improve to destinations traffic net The interference protection measures such as the jamming effectiveness of platform；Therefore carrying out electronic interferences using airborne jamming equipment is future electronic countermeasure system One main trend of development.
For the ground communication net platform of multicast system, usually only knows 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 movement receiving platform of surrounding, refer to Platform is waved as this unique radiation source of communication network platform, movement 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 distances, i.e. nature communication distance, movement receiving platform with communicate the distance between radiation source As long as being kept for the moment be less than nature communication distance.
According to the actual situation, the coverage area in an airplane jamming source is lateral, and in the range of this, interfering beam can be with Free switching, as long as that is, target falls into the coverage area of interference source and is considered as can be implemented interference.When a frame electronic warfare air plane Two wings when respectively carrying an interference source, the total range in left and right can be covered, such as the green overcast region institute in attached drawing 2 Show.
For ground fixed communication radiation source, electronic warfare air plane usually spirals at a distance and interferes it.Common two The typical interference course line of kind: round and racetrack.The interference source coverage area that one frame electronic warfare air plane carries only has, so round boat Line interferes 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 be got well.Racetrack course line can be similar regard a round course line as plus two sections of straightways, if can guarantee dry Disturbing machine, effectively, then racetrack course line is got well than round course line from the point of view of time domain covering for moment interference on two sections of straightways, Break period i.e. in the unit time is small.
Summary of the invention
The technical problem to be solved by the present invention is to based on above-mentioned ground communication net platform, air interference resource characteristic and do Route design thought, the parameter in design two quasi-representative of electronic warfare air plane interference course line are disturbed, and it is respective to its to compare two class course lines Jamming effectiveness is assessed.
The technical scheme is that
(1) limits value of interference distance is calculated
Since interfering beam is directed at communication radiation source, to guarantee interference effect, interfering beam is taken just to cover entire natural Interference distance when communication zone interferes the corresponding interference distance in arbitrary point on course line that cannot 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 turning radius of electronic warfare air plane: r=RTurning。
(3) racetrack course line is generated, detailed process is as follows:
1. the turning radius that racetrack course line circular arc portion radius is taken as electronic warfare air plane: r=RTurning。
2. calculating the straight length portion length that can meet interference covering constantly:
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 interference 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 to communicate transmitting antenna in the gain in receiving antenna direction；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 toFor the maximum jamming range for meeting pressing conditions.
4. calculating the maximum jamming range under parameter current on racetrack course line:
In formula, DFarIt is maximum jamming range；DLimitationIt is the minimum limits value of interference distance；RTurningIt 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；
5. if RWith reference to≥DFar, then course line length of straigh line D is takenLengthwise=DLengthwise 1；If RWith reference to<DFar, then it enables:
In formula, RWith reference toFor the maximum jamming range for meeting pressing conditions；DLimitationIt is the minimum limits value of interference distance；RTurningIt is The turning radius 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 compared and carry out jamming Efficiency Evaluation:
Selection interference distance, communication compacting distance, dry logical ratio and communication effective coverage area four indices are assessed, and are had Steps are as follows for body.
1. respectively taking out one group of representative sampled point on round and racetrack course line.
2. calculating the interference distance R of each sampled pointj:
Radiation source positions are only known due to practical, and do not know the position of receiver.So being communicated after taking interference source to interference Effective district is farthest, mean value of closest approach characterizes, as shown in Fig. 3, calculation formula:
Rj=(r1+r2)/2 (6)
In formula, r1It is the closest approach that interference source communicates effective district boundary to after interfering；r2Being interference source has to communicating after interference Imitate the farthest point on area boundary；
3. distance R is suppressed in the communication for calculating each sampled pointc:
Communication compacting distance indicate be interfered after maximum communication distance, take communication radiation source to communicate effective district most Far, the mean value of closest approach distance, as shown in Fig. 4, calculation formula:
Rc=(r3+r4)/2 (7)
In formula, r3It is the closest approach for communicating radiation source to communication effective district boundary；r4It is to communicate radiation source to communication effective district The farthest point on boundary；
4. calculating the dry logical than JSR of each sampled point:
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. communicating effective coverage area S after calculating each sampled point interference.
6. the four indices of each sampled point in round course line are successively averaging four global indexes as round course line Value:
7. the four indices of each sampled point in racetrack course line are successively averaging four entirety as racetrack course line Index value:
8. each index takes the maximum value 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 quadrangle figure, such as attached drawing 5 Shown, the maximum value at each angle of quadrangle figure is 1.
9. four evaluation index value weighted sums in pair two course lines are as final jamming Efficiency Evaluation value:
Wherein, weighing vector default value isIt can just modify according to actual needs.
10. the maximum course line of weighted sum value is jamming effectiveness preferably course line.
The beneficial effects of the present invention are: for the ground communication net platform of multicast have devised two kinds it is relatively good dry Course line is disturbed, wherein racetrack course line meets in any point on making course line also to 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 the method that a kind of pair of jamming effectiveness is assessed simultaneously.
Detailed description of the invention
Fig. 1 is the method for the present invention flow chart；
Fig. 2 is airplane jamming source coverage map；
Fig. 3 is that interference distance calculates schematic diagram；
Fig. 4 is that communication compacting distance calculates schematic diagram；
Fig. 5 is that course line normalizes evaluation index quadrangle figure；
Fig. 6 is one result figure of emulation；
Fig. 7 is two result figures of emulation.
Specific embodiment
Additional notes actual effect of the invention with reference to the accompanying drawing.
Emulation one
Assuming that the electronic warfare air plane turning radius of carry interference source is 8km, interference source beam angle is 0.7rad, and target is logical Letter net platform nature communication distance is 40km.Simulation result is as shown in Fig. 6, and the jamming Efficiency Evaluation value in round course line is 0.88, The jamming Efficiency Evaluation value in racetrack course line is 0.99.The racetrack it can be seen from simulation result diagram and jamming Efficiency Evaluation value Course line opposite will be better than round course line.
Emulation two
Assuming that the electronic warfare air plane turning radius of carry interference source is 5km, interference source beam angle is 0.5rad, and target is logical Letter net platform nature communication distance is 50km.Simulation result is as shown in Fig. 7, and the jamming Efficiency Evaluation value in round course line is 0.86, The jamming Efficiency Evaluation value in racetrack course line is 1.Runway is still it can be seen from simulation result diagram and jamming Efficiency Evaluation value Type course line opposite will be better than round course line.

Claims (1)

1. the airborne communication based on radiation source interferes course line modeling and jamming Efficiency Evaluation method, for ground communication net platform and do The system for disturbing aircraft combination, which comprises the following steps:
S1, the limits value for calculating interference distance:
Interference distance when interfering beam being taken just to cover entire natural communication zone interferes arbitrary point on course line as limits value Corresponding interference distance cannot be less than the value, and limits value is obtained by following formula 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, round course line is generated:
Round course line radius is taken as the turning radius of countermeasure aircraft: r=RTurning；
S3, racetrack course line is generated, comprising:
S31, racetrack course line circular arc portion radius are taken as the turning radius of countermeasure aircraft: r=RTurning；
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, blanket factor and natural communication distance are brought into disturbance equation, obtained:
In formula 3, KjIt is blanket factor, PjtIt is jamming transmitter power；GjtIt is interference 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 to communicate transmitting antenna in the gain in receiving antenna direction；GsrIt is increasing of the communications reception antenna in transmitting antenna direction Benefit；It is counter to solve RWith reference to, RWith reference toFor the maximum jamming range for meeting 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 it enables:
It is counter to solve course line length of straigh line DLengthwise；
S4, jamming Efficiency Evaluation is carried out to the round course line of step S2 and the racetrack course line of step S3:
Select interference distance index E (Rj), communication compacting range index E (Rc), dry logical than index E (JSR) and communicate effective coverage Area index E (S) four indices are assessed, RjFor the interference distance of each sampled point, RcIt is suppressed for the communication of each sampled point Distance, JSR are the logical ratio of doing of each sampled point, and S is communication effective coverage area after the interference of each sampled point, comprising:
S41, one group of representative sampled point is respectively taken out on round and racetrack course line；
S42, the interference distance R for calculating each sampled pointj:
Take after interference source to interference that communication effective district is farthest, mean value of closest approach characterizes, calculation formula:
Rj=(r1+r2)/2 (formula 6)
In formula, r1It is the closest approach that interference source communicates effective district boundary point to after interfering；r2It is that interference source communicates effectively to after interfering The farthest point on area boundary；
Distance R is suppressed in S43, the communication for calculating each sampled pointc:
Take communication radiation source to communication effective district farthest, the mean value of closest approach distance, calculation formula:
Rc=(r3+r4)/2 (formula 7)
In formula, r3It is the closest approach for communicating radiation source to communication effective district boundary；r4It is to communicate radiation source to communication effective district boundary Farthest point；
S44, the dry logical than JSR of each sampled point is calculated:
JSR=Rj/Rc(formula 8)
S45, effective coverage area S is communicated after calculating each sampled point interference；
S46, the four indices of each sampled point in round course line are successively averaging four global index values as round course line:
S47, the four indices of each sampled point in racetrack course line are successively averaging refer to as four entirety in racetrack course line Scale value:
S48, each index take the maximum value in two course lines to normalize:
S49, to four evaluation index value weighted sums in two course lines as final jamming Efficiency Evaluation value:
Wherein, weighing vector default value isIt can modify according to actual needs；Weighted sum value is maximum Course line be jamming effectiveness preferably course line.
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