CN113465450B - Method and system for fuze wide beam shaping based on forward detection beam width index - Google Patents
Method and system for fuze wide beam shaping based on forward detection beam width index Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G7/00—Direction control systems for self-propelled missiles
- F41G7/20—Direction control systems for self-propelled missiles based on continuous observation of target position
- F41G7/22—Homing guidance systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
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- F41G7/00—Direction control systems for self-propelled missiles
- F41G7/20—Direction control systems for self-propelled missiles based on continuous observation of target position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
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- F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
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- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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Abstract
The invention provides a fuze wide beam shaping method and a system based on a forward detection beam width index, which comprises the following steps: step S1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through the relative position and angle geometric analysis of the bullet eyes of the encountered section; step S2: analyzing the change trend of the boundary of the forward detection wave beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam; and step S3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam; and step S4: and setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, completing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition.
Description
Technical Field
The invention relates to the technical field of guidance integrated fuzes, in particular to a method and a system for forming a fuze wide beam based on a forward detection beam width index, and more particularly relates to a method for rapidly calculating the forward detection beam width.
Background
The ultra-high-speed target machine momentum appearing in the early stage is small, a reverse-orbit interception mode is mostly adopted during missile attack, the meeting angle of a missile target encountering section is small, the requirement on the width of a forward detection wave beam of the guidance integration fuze is relatively low, and the continuous detection and tracking of the guidance integration fuze on the target can be ensured by using the narrow forward detection wave beam. With the appearance of the hypersonic speed target with variable trajectory maneuvering, the difficulty of inverse rail interception is greatly increased, and a larger intersection angle and a larger missile attack angle can appear in a bullet encounter section. Under the conditions of higher relative speed, larger intersection angle and larger attack angle, two modes such as narrow beam tracking, wide beam forming and the like can be adopted for leading the fuze beam to always detect and track the target. When the relative speed is high (for example, the relative speed is greater than 5000 m/s), the narrow beam tracking mode has high requirement on the beam tracking speed (for example, the beam tracking speed of at least 150 DEG/s is required when the relative speed is 5000 m/s), and the narrow beam tracking mode is difficult to realize according to the current technology. A wide beam endowing mode is adopted, and reasonable fuze forward detection beam width needs to be set; the detection beam width is designed to be too small, so that the target can not be ensured to be always in the range of the fuze detection beam under the given intersection condition, and the phenomenon that the fuze can not detect the target can occur; the detection beam width is designed to be too large, the action distance cannot be increased, the problems of untimely response of a guidance and fighting system, difficult guidance and fighting matching and the like can exist, and the target cannot be effectively damaged.
Through the reference of domestic and foreign documents, the research aiming at the calculation of the forward detection beam width is very little at present. In order to meet the requirements, the invention provides a rapid calculation method of the forward detection beam width, which is characterized in that the forward detection beam width index of a guidance integrated fuze is set according to the calculated forward detection beam width, the fuze design is guided, the head of a target can be ensured to be always in the range of the fuze forward detection beam under the given meeting condition, and the continuous detection of the fuze on the target is realized; by combining a fuze target detection and identification algorithm, the detection starting probability of the guidance integrated fuze under a given intersection condition can be improved, and the effect of improving the missile killing probability is finally realized.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method and a system for fuze wide beam shaping based on a forward detection beam width index.
The method for shaping the fuze wide beam based on the forward detection beam width index provided by the invention comprises the following steps:
step S1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through geometric analysis of relative positions and angles of the confrontation sections;
step S2: analyzing the change trend of the boundary of the forward detection wave beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam;
and step S3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam;
and step S4: and setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, finishing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition.
Preferably, the forward detection beam boundary mathematical model in step S1 includes:
θ 0 ＝max(2θ 10 ,2θ 20 ) (1)
wherein, theta 10 ＝θ 1 '+γ m +Δθ (2)
θ 20 ＝θ 2 '+γ m +Δθ (3)
θ 1 '＝η-β 0 -α 1 (4)
θ 2 '＝η+β 0 -α 2 (5)
Wherein the content of the first and second substances,
representing the missile velocity vector, module value of
Representing a target velocity vector, modulo a value of
Representing a relative velocity vector, modulo a
χ represents the bullet eye intersection angle; ρ represents the amount of miss; t is t 0 Representing a data processing time; r represents the forward probe range; r is a radical of hydrogen 0 Represents elapsed time t 0 Detecting the distance from the back to the front; l is 0 Representing a target maximum size; gamma ray m Representing the missile angle of attack; Δ θ represents an angular pointing error; eta represents the included angle between the velocity vector of the missile and the relative velocity vector; beta is a 0 Representing the included angle between the azimuth of the geometric center of the target and the relative speed; alpha (alpha) ("alpha") 1 Shows the off-target orientation 1, the included angle between the orientation of the target head and the relative speed and beta 0 An angle difference; alpha is alpha 2 Shows the off-target orientation 2, the angle between the orientation of the target head and the relative speed, and beta 0 An angle difference; theta 1 ' indicates the included angle between the connecting line of the target head and the missile at the miss direction 1 and the missile axis; theta 2 ' represents the angle between the connecting line of the target head and the missile axis in the miss direction 2; theta.theta. 10 Representing the single-side beam boundary of forward detection of the off-target position 1; theta 20 Representing the off-target position 2 forward detection unilateral beam boundary; theta 0 Representing the forward probe beam boundary.
Preferably, the step S2 includes: and analyzing the change trend of the boundary of the forward detection wave beam along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the target geometric dimension and the data processing time to obtain the intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam.
Preferably, the step S3 includes: and inputting intersection condition parameters corresponding to the maximum value of the boundary of the forward detection beam, including missile speed, target speed, intersection angle, detection distance, miss distance, missile attack angle, angle pointing error, target geometric dimension and data processing time into a mathematical model of the boundary of the forward detection beam, calculating to obtain the maximum value of the boundary of the forward detection beam, taking the maximum value as a value of the width of the forward detection beam, setting the index of the width of the forward detection beam of the guidance integration fuze, and developing the shaping design of the forward wide beam of the guidance integration fuze.
Preferably, the design of forward wide beam forming of the development and guidance integrated fuze comprises: according to the guide integrated fuse forward detection beam width index, phased array antenna array arrangement is analyzed and optimized, phase and amplitude control is carried out on each antenna array element of the phased array through the wave control machine and the gain control circuit, and the guide integrated fuse forward wide beam shaping design is achieved through preset amplitude-phase weighting.
The invention provides a fuze wide beam shaping system based on a forward detection beam width index, which comprises:
a module M1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through the relative position and angle geometric analysis of the bullet eyes of the encountered section;
a module M2: analyzing the change trend of the boundary of the forward detection beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection beam;
a module M3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam;
a module M4: and setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, completing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition.
Preferably, the mathematical model of the forward probe beam boundary in the module M1 includes:
θ 0 ＝max(2θ 10 ,2θ 20 ) (1)
wherein, theta 10 ＝θ 1 '+γ m +Δθ (2)
θ 20 ＝θ 2 '+γ m +Δθ (3)
θ 1 '＝η-β 0 -α 1 (4)
θ 2 '＝η+β 0 -α 2 (5)
Wherein the content of the first and second substances,
representing the missile velocity vector, module value of
Representing a target velocity vector, modulo a
Representing a relative velocity vector, modulo a
χ represents the bullet eye intersection angle; ρ represents the amount of miss; t is t 0 Representing a data processing time; r represents the forward probe range; r is a radical of hydrogen 0 Represents elapsed time t 0 Back-to-front detection distance; l is 0 Representing a target maximum size; gamma ray m Representing the missile angle of attack; Δ θ represents an angular pointing error; eta represents the included angle between the missile velocity vector and the relative velocity vector; beta is a 0 Representing the included angle between the azimuth of the geometric center of the target and the relative speed; alpha is alpha 1 The included angle beta between the azimuth of the head of the target and the relative speed is shown as the off-target azimuth 1 0 An angle difference; alpha is alpha 2 The off-target position 2 is shown, the included angle beta between the position of the target head and the relative speed 0 An angle difference; theta 1 ' indicating off-target orientation 1 connecting line of target head and missileThe included angle of the shaft; theta.theta. 2 ' represents the angle between the connecting line of the target head and the missile axis in the miss direction 2; theta 10 Representing the off-target position 1 forward detection unilateral beam boundary; theta 20 Representing off-target orientation 2 forward detection of unilateral beam boundaries; theta 0 Representing the forward probe beam boundary.
Preferably, said module M2 comprises: and analyzing the change trend of the boundary of the forward detection wave beam along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the target geometric dimension and the data processing time to obtain the intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam.
Preferably, said module M3 comprises: and inputting intersection condition parameters corresponding to the maximum value of the boundary of the forward detection beam, including missile speed, target speed, intersection angle, detection distance, miss distance, missile attack angle, angle pointing error, target geometric dimension and data processing time into a mathematical model of the boundary of the forward detection beam, calculating to obtain the maximum value of the boundary of the forward detection beam, taking the maximum value as a value of the width of the forward detection beam, setting the index of the width of the forward detection beam of the guidance integration fuze, and developing the shaping design of the forward wide beam of the guidance integration fuze.
Preferably, the developing and guiding integrated fuze forward wide beam forming design comprises the following steps: according to the guide integrated fuse forward detection beam width index, phased array antenna array arrangement is analyzed and optimized, phase and amplitude control is carried out on each antenna array element of the phased array through the wave control machine and the gain control circuit, and the guide integrated fuse forward wide beam shaping design is achieved through preset amplitude-phase weighting.
Compared with the prior art, the invention has the following beneficial effects: the invention provides a forward detection beam width calculation method for the first time, which can ensure that a target is always in the range of a detection beam of a guidance integrated fuze under a given intersection condition and ensure that the fuze continuously detects and tracks the target, thereby improving the fuze detection starting probability and finally improving the missile killing probability;
drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a diagram of forward probing single-sided beams.
In FIG. 1: a-initial position of missile, B-elapsed time t 0 The position of the rear missile, C1-off-target position 1 corresponds to the geometric central position of the target, E1-off-target position 1 corresponds to the head position of the target, F1-off-target position 1 corresponds to the tail position of the target, C2-off-target position 2 corresponds to the geometric central position of the target, E2-off-target position 2 corresponds to the head position of the target, F1-off-target position 2 corresponds to the tail position of the target, and delta APD-
The velocity triangle is composed.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will aid those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any manner. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
The invention provides a method for quickly calculating the beam width of forward detection, which is used for calculating the beam width in the forming process of a wide beam for forward detection of a guidance integrated fuze, solving the problem of detecting and tracking an ultra-high-speed target by a large intersection angle attack situation fuze and further improving the killing probability of a missile.
According to the method for shaping the fuze wide beam based on the forward detection beam width index provided by the invention, as shown in fig. 1, the method comprises the following steps:
step S1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through geometric analysis of relative positions and angles of the confrontation sections;
step S2: analyzing the change trend of the boundary of the forward detection wave beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam;
and step S3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam;
and step S4: and setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, completing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition.
Specifically, the mathematical model of the forward probe beam boundary in step S1 includes:
θ 0 ＝max(2θ 10 ,2θ 20 ) (1)
wherein, theta 10 ＝θ 1 '+γ m +Δθ (2)
θ 20 ＝θ 2 '+γ m +Δθ (3)
θ 1 '＝η-β 0 -α 1 (4)
θ 2 '＝η+β 0 -α 2 (5)
Wherein, the first and the second end of the pipe are connected with each other,
representing the velocity vector of the missile, the modulus value being
Representing a target velocity vector, modulo a
Representing a relative velocity vector, modulo a
χ represents the intersection angle of the bullet eyes; ρ represents the amount of miss; t is t 0 Representing a data processing time; r represents the forward probe range; r is 0 Represents elapsed time t 0 Back-to-front detection distance; l is a radical of an alcohol 0 Representing a target maximum size; gamma ray m Representing the missile angle of attack; Δ θ represents an angular pointing error; eta represents the included angle between the missile velocity vector and the relative velocity vector; beta is a beta 0 Representing the included angle between the position of the geometric center of the target and the relative speed; alpha (alpha) ("alpha") 1 Shows the off-target orientation 1, the included angle between the orientation of the target head and the relative speed and beta 0 An angle difference; alpha (alpha) ("alpha") 2 The off-target position 2 is shown, the included angle beta between the position of the target head and the relative speed 0 An angle difference; theta 1 ' represents the off-target direction 1, wherein the included angle between the connecting line of the target head and the missile axis is included; theta 2 ' indicate off target orientation 2 meshThe connecting line of the mark head part and the missile forms an included angle with the missile axis; theta.theta. 10 Representing the off-target position 1 forward detection unilateral beam boundary; theta 20 Representing the off-target position 2 forward detection unilateral beam boundary; theta 0 Representing the forward probe beam boundary.
Specifically, the step S2 includes: and analyzing the change trend of the boundary of the forward detection wave beam along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the geometric dimension of the target and the data processing time to obtain the intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam.
Specifically, the step S3 includes: and inputting intersection condition parameters corresponding to the maximum value of the boundary of the forward detection beam, including missile speed, target speed, intersection angle, detection distance, miss distance, missile attack angle, angle pointing error, target geometric dimension and data processing time into a mathematical model of the boundary of the forward detection beam, calculating to obtain the maximum value of the boundary of the forward detection beam, taking the maximum value as a value of the width of the forward detection beam, setting the index of the width of the forward detection beam of the guidance integration fuze, and developing the shaping design of the forward wide beam of the guidance integration fuze.
Specifically, the developing and guidance integrated fuze forward wide beam forming design comprises the following steps: according to the guide integrated fuse forward detection beam width index, phased array antenna array arrangement is analyzed and optimized, phase and amplitude control is carried out on each antenna array element of the phased array through the wave control machine and the gain control circuit, and the guide integrated fuse forward wide beam shaping design is achieved through preset amplitude-phase weighting.
The invention provides a fuze wide beam shaping system based on a forward detection beam width index, which comprises:
a module M1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through the relative position and angle geometric analysis of the bullet eyes of the encountered section;
a module M2: analyzing the change trend of the boundary of the forward detection wave beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam;
a module M3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam;
a module M4: and setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, completing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition.
Specifically, the mathematical model of the forward probe beam boundary in the module M1 includes:
θ 0 ＝max(2θ 10 ,2θ 20 ) (1)
wherein, theta 10 ＝θ 1 '+γ m +Δθ (2)
θ 20 ＝θ 2 '+γ m +Δθ (3)
θ 1 '＝η-β 0 -α 1 (4)
θ 2 '＝η+β 0 -α 2 (5)
Wherein the content of the first and second substances,
representing the missile velocity vector, module value of
Representing a target velocity vector, modulo a
Representing a relative velocity vector, modulo a
χ represents the intersection angle of the bullet eyes; ρ represents the amount of miss; t is t 0 Representing a data processing time; r represents the forward probe range; r is 0 Represents elapsed time t 0 Back-to-front detection distance; l is 0 Representing a target maximum size; gamma ray m Representing the missile angle of attack; Δ θ represents an angular pointing error; eta represents the included angle between the missile velocity vector and the relative velocity vector; beta is a 0 Representing the included angle between the azimuth of the geometric center of the target and the relative speed; alpha (alpha) ("alpha") 1 The included angle beta between the azimuth of the head of the target and the relative speed is shown as the off-target azimuth 1 0 An angle difference; alpha (alpha) ("alpha") 2 Shows the off-target orientation 2, the angle between the orientation of the target head and the relative speed, and beta 0 An angle difference; theta 1 ' represents the off-target direction 1, wherein the included angle between the connecting line of the target head and the missile axis is included; theta 2 ' represents the angle between the connecting line of the target head and the missile axis in the miss direction 2; theta.theta. 10 Show the stripDetecting the boundary of a unilateral beam in the forward direction of a target position 1; theta 20 Representing off-target orientation 2 forward detection of unilateral beam boundaries; theta.theta. 0 Representing the forward probe beam boundary.
In particular, the module M2 comprises: and analyzing the change trend of the boundary of the forward detection wave beam along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the target geometric dimension and the data processing time to obtain the intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam.
In particular, said module M3 comprises: and inputting the intersection condition parameters corresponding to the maximum value of the boundary of the forward detection beam, including missile speed, target speed, intersection angle, detection distance, miss distance, missile attack angle, angle pointing error, target geometric dimension and data processing time into a mathematical model of the boundary of the forward detection beam, calculating to obtain the maximum value of the boundary of the forward detection beam, taking the maximum value as a value of the width of the forward detection beam, setting the index of the width of the forward detection beam of the guidance integrated fuse, and carrying out the shaping design of the forward wide beam of the guidance integrated fuse.
Specifically, the developing and guidance integrated fuze forward wide beam forming design comprises the following steps: according to the guide integrated fuse forward detection beam width index, phased array antenna array arrangement is analyzed and optimized, phase and amplitude control is carried out on each antenna array element of the phased array through the wave control machine and the gain control circuit, and the guide integrated fuse forward wide beam shaping design is achieved through preset amplitude-phase weighting.
The forward detection beam width value obtained by calculation can be used for setting the forward detection beam width index of the guidance integrated fuze and guiding the fuze design. When the width of a forward detection beam of the guidance integrated fuze is smaller than the index, the phenomena that a target is always positioned outside a fuze detection area, and the fuze cannot receive a target echo and cannot be started can occur; when the width of the forward detection beam of the guidance integrated fuze is larger than the index, under the condition that the fuze power is unchanged, the phenomenon that the action distance is reduced and the target echo is detected when the distance between the bullet eyes is short can occur, and the phenomena that a guidance system has an untimely response, guidance cooperation is difficult, and the target cannot be effectively damaged can occur. In conclusion, the calculated forward detection beam width sets the guide integrated fuze forward detection beam width index to guide the fuze design, so that the detection starting probability of the fuze under the given meeting condition can be improved, and the effect of improving the missile killing probability is finally realized.
Example 2
Example 2 is a preferred example of example 1
The invention provides a method for rapidly calculating the width of a forward detection beam, which comprises the following steps:
(1) Under the given intersection condition, a forward detection beam boundary mathematical model formula is obtained through analysis and deduction of the relative position of the bullet eyes in the encounter section and the angle geometric relationship;
(2) Analyzing the variation trend of the forward detection beam boundary along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the target geometric dimension, the data processing time and the like, and finding out the maximum value of the forward detection beam boundary;
(3) And taking the maximum value of the boundary of the forward detection beam obtained by calculation as a forward detection beam width value, and developing a forward wide beam shaping design of the guidance integrated fuse.
The forward detection wave beam boundary mathematical model is a guided missile velocity vector module value
Target velocity vector norm
Intersection angle χ, detection distance r, miss distance ρ and missile attack angle γ m Angle pointing error delta theta, target geometric dimension L 0 Data processing time t 0 As an input quantity, the forward detection beam boundary theta is obtained by analyzing the geometric relation between the relative position and the angle of the bullet eyes in the encountered section 0 And (5) calculating a formula.
After a forward detection beam boundary mathematical model is established, analyzing the change trend of the forward detection beam boundary along with the input quantity, finding out the maximum value, and taking the maximum value obtained by calculation as the forward detection beam width value; the method designs the wave beam width of the guide integrated fuze forward detection, completes the forming of the fuze wide wave beam, and can ensure that the target head is always in the range of the fuze forward detection wave beam under the given intersection condition; by combining a fuze target detection and identification algorithm, the detection starting probability of the guidance integrated fuze under a given intersection condition can be improved, and the effect of improving the missile killing probability is finally realized.
The maximum value of the forward detection beam boundary obtained by calculation is used for setting the width index of the forward detection beam of the guidance integrated fuze, and the fuze can be guided to be designed; the beam width of the guiding integrated fuse forward detection is designed, the fuse wide beam shaping is completed, and the target head can be ensured to be always in the range of the fuse forward detection beam under the given intersection condition; by combining a fuze target detection and identification algorithm, the detection starting probability of the guidance integrated fuze under a given intersection condition can be improved, and the effect of improving the missile killing probability is finally realized.
Example 3
Example 3 is a preferred example of example 1 and/or example 2
The invention provides a method for shaping a fuze wide beam based on a forward detection beam width index, which comprises the following steps:
step 1: determining missile velocity vector module value when missile eyes encounter
Target velocity vector norm
Intersection angle chi, detection distance r, miss distance rho and missile attack angle gamma m Angle pointing error delta theta, target geometric dimension L 0 Data processing time t 0 Values are selected, such as missile speed of 1000 m/s-2000 m/s, target speed of 1000 m/s-3000 m/s, intersection angle of 0-20 degrees, detection distance of 200 m-300 m, miss distance of 0 m-8 m, missile attack angle of 0-5 degrees, angle pointing error of 2 degrees at most and target geometric dimension of 8 m-25 degreesm, the maximum data processing time is 2ms.
And 2, step: deducing to obtain a mathematical model formula of the boundary of the forward detection beam:
θ 0 ＝max(2θ 10 ,2θ 20 )
in the formula:
θ 10 ＝θ 1 '+γ m +Δθ
θ 20 ＝θ 2 '+γ m +Δθ
θ 1 '＝η-β 0 -α 1
θ 2 '＝η+β 0 -α 2
the symbol means:
χ: angle of intersection of the eyes and the bullet;
ρ: miss amount, m;
t 0 : data processing time, s;
r: forward probe distance, m;
r 0 : over time t 0 Backward-forward detection distance, m;
L 0 : target maximum size, m;
γ m : missile angle of attack, °;
Δ θ: angular pointing error, °;
eta: the angle between the missile velocity vector and the relative velocity vector is degree;
β 0 : the included angle between the azimuth of the geometric center of the target and the relative speed is degree;
α 1 : off target orientation 1 target headAngle between azimuth and relative speed and beta 0 Angle difference, °;
α 2 : off-target orientation 2 the orientation of the head of the target and the relative velocity 0 Angle difference, °;
θ 1 ': off-target orientation 1 the angle between the connecting line of the target head and the missile axis is degree;
θ 2 ': the off-target position 2 is the included angle between the connecting line of the target head and the missile axis;
θ 10 : detecting the boundary of a single-side wave beam in the forward direction of the miss azimuth 1;
θ 20 : detecting the boundary of the single-side wave beam in the off-target direction 2;
θ 0 : forward probe beam boundaries.
And step 3: analyzing the change trend of the boundary of the forward detection beam and finding out the maximum value of the boundary of the forward detection beam; under the condition of the step 1, the maximum value of the boundary of the forward detection wave beam appears under the conditions of 3000m/s of target speed, 1000m/s of missile speed, 20 degrees of intersection angle, 200m of detection distance, 8m of miss distance, 5 degrees of missile attack angle, 8m of target geometric dimension, 2 degrees of angle pointing error and 2 degrees of data processing time, and the maximum value of the boundary of the forward detection wave beam obtained by calculation is 48.7 degrees.
And 4, step 4: and taking the maximum value of the boundary of the forward detection beam obtained by calculation as a forward detection beam width value to develop the forward wide beam shaping design of the guidance integrated fuse.
Those skilled in the art will appreciate that, in addition to implementing the systems, apparatus, and various modules thereof provided by the present invention in purely computer readable program code, the same procedures can be implemented entirely by logically programming method steps such that the systems, apparatus, and various modules thereof are provided in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system, the device and the modules thereof provided by the present invention can be considered as a hardware component, and the modules included in the system, the device and the modules thereof for implementing various programs can also be considered as structures in the hardware component; modules for performing various functions may also be considered to be both software programs for performing the methods and structures within hardware components.
The foregoing description has described specific embodiments of the present invention. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (8)
1. A method for fuze wide beam forming based on a forward detection beam width index is characterized by comprising the following steps:
step S1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through geometric analysis of relative positions and angles of the confrontation sections;
step S2: analyzing the change trend of the boundary of the forward detection wave beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam;
and step S3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam;
and step S4: setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, finishing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition;
the forward detection beam boundary mathematical model in step S1 includes:
θ 0 ＝max(2θ 10 ,2θ 20 )(1)
wherein, theta 10 ＝θ 1 '+γ m +Δθ(2)
θ 20 ＝θ 2 '+γ m +Δθ(3)
θ 1 '＝η-β 0 -α 1 (4)
θ 2 '＝η+β 0 -α 2 (5)
Wherein, the first and the second end of the pipe are connected with each other,
representing the velocity vector of the missile, the modulus value being
Representing a target velocity vector, modulo a
Representing a relative velocity vector, modulo a
χ represents the bullet eye intersection angle; ρ represents the amount of miss; t is t 0 Representing a data processing time; r represents the forward probe range; r is a radical of hydrogen 0 Represents elapsed time t 0 Detecting the distance from the back to the front; l is a radical of an alcohol 0 Representing a target maximum size; gamma ray m Representing the missile angle of attack; Δ θ represents an angular pointing error; eta represents the included angle between the velocity vector of the missile and the relative velocity vector; beta is a 0 Representing the included angle between the azimuth of the geometric center of the target and the relative speed; alpha is alpha 1 The included angle beta between the azimuth of the head of the target and the relative speed is shown as the off-target azimuth 1 0 An angle difference; alpha (alpha) ("alpha") 2 The off-target position 2 is shown, the included angle beta between the position of the target head and the relative speed 0 An angle difference; theta.theta. 1 ' represents the off-target direction 1, wherein the included angle between the connecting line of the target head and the missile axis is included; theta.theta. 2 ' represents the included angle between the connecting line of the target head and the missile at the miss direction 2 and the missile axis; theta 10 Representing the off-target position 1 forward detection unilateral beam boundary; theta 20 Representing off-target orientation 2 forward detection of unilateral beam boundaries; theta 0 Representing the forward probe beam boundary.
2. The method according to claim 1, wherein the step S2 includes: and analyzing the change trend of the boundary of the forward detection wave beam along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the target geometric dimension and the data processing time to obtain the intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam.
3. The method according to claim 1, wherein the step S3 comprises: and inputting the intersection condition parameters corresponding to the maximum value of the boundary of the forward detection beam, including missile speed, target speed, intersection angle, detection distance, miss distance, missile attack angle, angle pointing error, target geometric dimension and data processing time into a mathematical model of the boundary of the forward detection beam, calculating to obtain the maximum value of the boundary of the forward detection beam, taking the maximum value as a value of the width of the forward detection beam, setting the index of the width of the forward detection beam of the guidance integrated fuse, and carrying out the shaping design of the forward wide beam of the guidance integrated fuse.
4. The method for shaping the fuze wide beam based on the forward detection beam width index according to claim 3, wherein the developing of the guidance integrated fuze forward wide beam shaping design comprises: according to the guide integrated fuse forward detection beam width index, phased array antenna array arrangement is analyzed and optimized, phase and amplitude control is carried out on each antenna array element of the phased array through the wave control machine and the gain control circuit, and the guide integrated fuse forward wide beam shaping design is achieved through preset amplitude-phase weighting.
5. A fuze wide beam forming system based on a forward detection beam width index is characterized by comprising:
a module M1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through the relative position and angle geometric analysis of the bullet eyes of the encountered section;
a module M2: analyzing the change trend of the boundary of the forward detection wave beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam;
a module M3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam;
a module M4: setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, finishing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition;
the mathematical model of the forward detection beam boundary in the module M1 includes:
θ 0 ＝max(2θ 10 ,2θ 20 ) (1)
wherein, theta 10 ＝θ 1 '+γ m +Δθ (2)
θ 20 ＝θ 2 '+γ m +Δθ (3)
θ 1 '＝η-β 0 -α 1 (4)
θ 2 '＝η+β 0 -α 2 (5)
Wherein, the first and the second end of the pipe are connected with each other,
representing the velocity vector of the missile, the modulus value being
Representing a target velocity vector, modulo a
Representing a relative velocity vector, modulo a
χ represents the intersection angle of the bullet eyes; ρ represents the amount of miss; t is t 0 Representing a data processing time; r represents the forward probe range; r is 0 Represents elapsed time t 0 Back-to-front detection distance; l is 0 Representing a target maximum size; gamma ray m Representing the missile angle of attack; Δ θ represents an angular pointing error; eta represents the included angle between the missile velocity vector and the relative velocity vector; beta is a 0 Representing the included angle between the azimuth of the geometric center of the target and the relative speed; alpha (alpha) ("alpha") 1 The included angle beta between the azimuth of the head of the target and the relative speed is shown as the off-target azimuth 1 0 An angle difference; alpha (alpha) ("alpha") 2 The off-target position 2 is shown, the included angle beta between the position of the target head and the relative speed 0 An angle difference; theta.theta. 1 ' indicates the included angle between the connecting line of the target head and the missile at the miss direction 1 and the missile axis; theta.theta. 2 ' represents the included angle between the connecting line of the target head and the missile at the miss direction 2 and the missile axis; theta 10 Representing the off-target position 1 forward detection unilateral beam boundary; theta 20 Representing off-target orientation 2 forward detection of unilateral beam boundaries; theta 0 Representing the forward probe beam boundary.
6. The system according to claim 5, wherein the module M2 comprises: and analyzing the change trend of the boundary of the forward detection wave beam along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the target geometric dimension and the data processing time to obtain the intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam.
7. The system according to claim 5, wherein the module M3 comprises: and inputting the intersection condition parameters corresponding to the maximum value of the boundary of the forward detection beam, including missile speed, target speed, intersection angle, detection distance, miss distance, missile attack angle, angle pointing error, target geometric dimension and data processing time into a mathematical model of the boundary of the forward detection beam, calculating to obtain the maximum value of the boundary of the forward detection beam, taking the maximum value as a value of the width of the forward detection beam, setting the index of the width of the forward detection beam of the guidance integrated fuse, and carrying out the shaping design of the forward wide beam of the guidance integrated fuse.
8. The system for fuze-wide beam forming based on the forward detection beam width index according to claim 7, wherein the design of developing the guidance-integrated fuze-wide beam forming comprises: according to the guide integration fuze forward detection beam width index, phased array antenna array arrangement is analyzed and optimized, phase and amplitude control is carried out on each antenna array element of the phased array through the wave control machine and the gain control circuit, and the guide integration fuze forward wide beam shaping design is achieved through preset amplitude-phase weighting.
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