CN109459583B - Method for predicting deviation of trajectory of small arms based on laser wind measurement - Google Patents

Method for predicting deviation of trajectory of small arms based on laser wind measurement Download PDF

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CN109459583B
CN109459583B CN201811281213.0A CN201811281213A CN109459583B CN 109459583 B CN109459583 B CN 109459583B CN 201811281213 A CN201811281213 A CN 201811281213A CN 109459583 B CN109459583 B CN 109459583B
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aom
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CN109459583A (en
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聂劲松
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Hefei Chenhui Defence Technology Co ltd
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Anhui Weiyun Electronic Technology Co ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/26—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting optical wave

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Abstract

The invention discloses a method for predicting deviation of a small arms trajectory based on laser anemometry, and relates to the technical field of small arms. The invention comprises the following steps: the shooting personnel are in position at the shooting point, and the observation personnel measure the distance between the target object and the shooting point; three or more measuring points are set according to the measuring distance, and analogizing is carried out according to the sequence of a, b, c and d, wherein the measuring point a is positioned at the target object, and the rest measuring points are respectively positioned at two sides of the measuring point a; establishing a plurality of measuring distances according to the measuring distances, and analogizing according to the sequence of S1, S2, S3 and S4, wherein the measuring distances are not less than 50 meters; the invention sets a plurality of measuring points and measuring distances, avoids the laser emission direction being vertical to crosswind, improves the measuring stability, has short laser measuring time and small crosswind change amount, thereby being capable of measuring the crosswind state of each distance on the trajectory of the light weapon and having the advantage of improving the shooting precision of the light weapon.

Description

Method for predicting deviation of trajectory of small arms based on laser wind measurement
Technical Field
The invention relates to the technical field of light weapons, in particular to a method for predicting deviation of a trajectory of a light weapon based on laser anemometry.
Background
Firearms generally refer to firearms and other various weapons carried by individual soldiers or teams in combat. The main equipment object is infantry and is also widely equipped in other army and soldier species. The main characteristics of the small arms are: 1. the weight is light, the volume is small, most of the devices can be used independently and can be carried by single soldiers or combat groups; 2. convenient use, rapid fire, strong fire; 3. the environment adaptability is strong, and the battle can be operated under severe conditions; 4. the variety is complete, and equipment can be arranged according to task requirements; 5. simple structure, easy manufacture, low cost, suitability for mass production and mass equipment. However, the trajectory of a small arms weapon is easily affected by crosswind, and it is difficult to hit the target precisely when the range is far, and experiments show that when the wind speed is 4.4 m/s, a bullet with a caliber of 7.62 mm is used to shoot a target with a size of 400 yards, and the crosswind can make the bullet deviate 34.5 cm laterally. Correcting windage yaw is therefore a critical part of improving firearm accuracy.
At the present stage, shooting personnel carry a miniature anemoscope or observe a phantom formed by ground heat waves to judge the wind direction and the wind speed; the miniature anemometer can only measure the approximate wind direction and wind speed near the shooting point, and when the miniature anemometer faces complex terrain, the wind direction and the wind speed in the shooting range are possibly different everywhere, so that the shooting error is increased; the wind direction and the wind speed of the shooting range can be judged by observing the ground heat waves, but the mode has larger dependence on the environment and a small application range, and the accumulated experience needs to be continuously exercised when the ground heat waves are observed, so the learning cost is higher. The laser anemoscope can be used for accurately measuring the wind direction and the wind speed within a shooting range, but when the vibration laser emission angle is vertical to the crosswind, the laser anemoscope cannot measure the deviation component of the crosswind, so that the measured data is invalid, and the measurement work cannot be stably carried out. It is therefore a technical problem that those skilled in the art need to solve that the difference in wind direction and wind speed at various locations within the firing range of the firearm is difficult to predict.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for predicting the deviation of the trajectory of the light weapon based on laser anemometry, which solves the problem that the wind direction and the wind speed are different and difficult to predict at each position in the shooting range of the light weapon by setting a plurality of measuring points and measuring distances.
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for predicting deviation of a small arms trajectory based on laser anemometry comprises the following steps:
the SS01 shooter is in position at the shooting point, and the observer measures the distance between the target object and the shooting point;
the SS02 sets up three or more measuring points according to the measuring distance, wherein the measuring point a is positioned at the target object, and the rest measuring points are respectively positioned at two sides of the measuring point a;
the SS03 establishes several measuring distances according to the measuring distance, wherein the measuring distance is not less than 50 meters;
the SS04 sets up a laser anemoscope at the shooting point, one end of the laser anemoscope is connected with the computer;
SS05 observer inputs the position information and distance information of the measurement point into the computer respectively, the computer controls the laser wind meter to measure, the measurement information is output to the display screen in a chart form, the computer obtains the best shooting angle through calculation and outputs the result to the display screen;
the SS06 observer, based on the predicted optimal firing angle, communicates feedback of the ballistic correction to the shooter who adjusts the projectile ballistic angle and fires.
Further, the method comprises the following steps:
SS051 observer inputs the position information and distance information of measuring point into computer;
SS052 said computer controlling pulse signal source in laser wind meter to emit local oscillator laser f0Local oscillator laser f0Respectively transmitted to an AOM and a mixer 1, wherein the AOM transmits local oscillator laser f0Modulated into laser light f0+fAOMThe laser f0+fAOMTransmitting the laser beam to a Q-switched laser amplifier for amplification, and amplifying the amplified laser beam f0+fAOMInto a splitter which transmits laser light f0+fAOMRespectively transmitted to an optical switch and a mixer 1, and local oscillator laser light f in the mixer 10And laser f0+fAOMMixing the phases to obtain laser light fAOMAt this time, the reference signal fRefI.e. laser fAOM；
SS053 said computer controls the pulse signal source in the laser wind meter to emit the local oscillation laser f0Into the mixer 2, the optical switch directs the laser light f0+fAOMEmitted outside the laser anemometer through the Cassegrain telescope, the laser f0+fAOMBecomes laser f after contacting with cross wind0+fAOM+ Δ f, said laser light f0+fAOMAfter reaching the measuring distance, + delta f feeds back to the Cassegrain telescope, the laser f0+fAOM+ Δ f goes through the optical switch into the mixer 2, the laser light f in said mixer 20And laser f0+fAOM+ Δ f phase mixing to obtain laser fAOM+ Δ f, the echo signal f at this timesI.e. laser fAOM+Δf；
SS054 computer by comparing reference signal fRefAnd echo signal fsObtaining instantaneous wind speed corresponding to the measuring point and the measuring distance by using the difference frequency signal, wherein the instantaneous wind speed is a deviation component influencing the trajectory;
SS055 repeating the above steps SS052-SS054, obtaining deviation components of all measuring points and measuring distances, and drawing a chart;
SS056 the computer will make the chart information output to the display screen, the computer calculates the best shooting angle and outputs to the display screen, for the observer to watch.
The invention has the following beneficial effects:
1. according to the method for predicting deviation of the trajectory of the small arms based on laser anemometry, three or more laser measuring points are erected, the fact that the laser emission direction is perpendicular to crosswind is avoided, data obtained by a laser anemometer are prevented from being invalid, the laser anemometer can measure the deviation component of the crosswind all the time, and the method has the advantage of improving the working stability of the laser anemometer.
2. According to the method for predicting the deviation of the trajectory of the light weapon based on laser anemometry, the laser anemometer can measure the crosswind state of each distance on the trajectory of the light weapon by setting a plurality of measuring distances, and because the laser measuring time is short and the crosswind change amount is small, the optimal shooting angle is obtained by using computer operation, the influence of crosswind on the trajectory of the light weapon can be reduced, and the method has the advantage of improving the shooting precision of the light weapon.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a method for predicting deviation of a trajectory of a firearm based on laser anemometry in accordance with the present invention;
FIG. 2 is a schematic flow diagram of FIG. 1;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a method for predicting deviation of a small arms trajectory based on laser anemometry comprises the following steps:
the SS01 shooter is in position at the shooting point, and the observer measures the distance between the target object and the shooting point, wherein the distance is 1000 m;
SS02 sets up three measuring point according to the measuring distance, be measuring point a, measuring point b and measuring point c respectively, wherein measuring point a is located target object department, and all the other measuring points are located measuring point a both sides respectively, bilateral symmetry, all the other measuring points have avoided crosswind to be perpendicular with local oscillator laser emission direction through forming the contained angle with target object, measuring point a, and skew component can all be measured to the crosswind of different directions in the trajectory to improve measuring precision and the stability of laser anemometer work.
The SS03 establishes 20 measurement distances according to the measurement distances, and analogizes according to the sequence of S1, S2, S3 and S4, wherein the measurement distances are 50 meters; research shows that when the range is within 100 meters, crosswind has little influence on the trajectory of the light weapon, different wind directions and wind speeds on the trajectory of the light weapon can be conveniently measured by setting a quantitative measurement distance, and the optimal shooting angle with the minimum influence of the crosswind is obtained through computer operation processing, so that the anti-interference performance of the light weapon is further improved.
SS04 sets up a laser anemoscope at the shooting point, one end of the laser anemoscope is connected with the computer;
SS05 observer inputs the position information and distance information of the measurement point into the computer, the computer controls the laser wind meter to measure, the measurement information is output to the display screen in the form of graph, the computer obtains the best shooting angle through calculation and outputs the result to the display screen;
the SS06 observer, based on the predicted optimal firing angle, communicates feedback of the ballistic correction to the shooter who adjusts the projectile ballistic angle and fires.
As shown in fig. 2, the method comprises the following steps:
SS051 observer inputs the position information and distance information of measuring point into computer;
SS052 computer controlled laser wind meter pulse signal source emitting local oscillator laser f0Local oscillator laser f0Respectively transmitted to AOM and mixer 1, the AOM transmits local oscillation laser f0Modulated into laser light f0+fAOMLaser f0+fAOMTransmitting the laser beam to a Q-switched laser amplifier for amplification, and amplifying the amplified laser beam f0+fAOMTransmitted into a splitter which transmits laser light f0+fAOMRespectively transmitted to an optical switch and a mixer 1, and local oscillator laser light f in the mixer 10And laser f0+fAOMMixing the phases to obtain laser light fAOMAt this time, the reference signal fRefI.e. laser fAOM；
SS053 computer-controlled laser anemometer pulse signal source emitting local oscillator laser f0Into the mixer 2, the optical switch emits laser light f0+fAOMEmitted to the outside of the laser anemometer through the Cassegrain telescope, and the laser f0+fAOMBecomes laser f after contacting with cross wind0+fAOM+ Δ f, laser f0+fAOMAfter reaching the measuring distance, + delta f feeds back to Cassegrain telescope, laser f0+fAOM+ Δ f enters the mixer 2 through the optical switch, and the laser light f in the mixer 20And laser f0+fAOM+ Δ f phase mixing to obtain laser fAOM+ Δ f, the echo signal f at this timesI.e. laser fAOM+Δf；
SS054 computer by comparing reference signal fRefAnd echo signal fsObtaining instantaneous wind speed corresponding to the measuring point and the measuring distance by using the difference frequency signal, wherein the instantaneous wind speed is a deviation component influencing the trajectory;
SS055 repeating the above steps SS052-SS054, obtaining deviation components of all measuring points and measuring distances, and drawing a chart;
and the SS056 computer outputs the prepared chart information to the display screen, and the computer calculates the optimal shooting angle and outputs the optimal shooting angle to the display screen for observation by observers.
The specific working principle of this embodiment is as follows: the distance between the shooting point and the target object is 1000 meters, and three measuring points are erected, namely a measuring point a, a measuring point b and a measuring point c, and are used for measuring three direction angles in a shooting range; taking 50 meters as a measurement distance unit to obtain 20 sections of measurement distances; the measuring distances of 3 directions and 20 sections are measured by a laser anemometer to obtain 60 groups of longitudinal wind speed information, the computer calculates 20 transverse wind speeds between a shooting point and a target point according to the 60 groups of longitudinal wind speed information and three direction angles, and the optimal shooting angle is predicted through computer operation processing so as to correct the trajectory.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (1)

1. A method for predicting deviation of a trajectory of a small arms based on laser anemometry is characterized by comprising the following steps:
SS01, the shooter is in position at the shooting point, and the observer measures the distance between the target object and the shooting point;
SS02, setting three or more measuring points according to the measuring distance between the target object and the shooting point, wherein the measuring point a is positioned at the target object, and the other measuring points are respectively positioned at the two sides of the measuring point a and are symmetrical left and right;
SS03, setting up several measuring distances according to the measuring distance between the target object and the shooting point, wherein each measuring distance is not less than 50 m;
SS04, erecting a laser wind meter at the shooting point, wherein one end of the laser wind meter is connected with a computer;
SS05, the observer inputs the position information and distance information of the measurement point into the computer, the computer controls the laser wind meter to measure, the measurement information is output to the display screen in the form of a chart, the computer obtains the best shooting angle through operation and outputs the result to the display screen;
SS06, the observer transmits the feedback of trajectory correction to the shooter according to the predicted optimal shooting angle, and the shooter adjusts the trajectory angle of the light weapon and shoots;
the SS05 step specifically comprises the following steps:
SS051, observer inputs the position information and distance information of measuring point into computer separately;
SS052, said computer controlling pulse signal source in laser wind meter emitting local oscillator laser f0Local oscillator laser f0Respectively transmitting the local oscillation laser f to an AOM and a first mixer, wherein the AOM transmits the local oscillation laser f0Modulated into laser light f0+fAOMThe laser f0+fAOMTransmitting the laser beam to a Q-switched laser amplifier for amplification, and amplifying the amplified laser beam f0+fAOMInto a splitter which transmits laser light f0+fAOMRespectively transmitted to an optical switch and a first mixer, and local oscillation laser light f0 and laser light f in the first mixer0+fAOMMixing the phases to obtain laser light fAOMAt this time, the reference signal fRefI.e. laser fAOM；
SS053, the pulse signal source in the computer-controlled laser anemoscope transmits local oscillation laser f0 to the second mixer, and the optical switch transmits the laserf0+fAOMEmitted outside the laser anemometer through the Cassegrain telescope, the laser f0+fAOMBecomes laser f after contacting with cross wind0+fAOM+ Δ f, said laser light f0+fAOMAfter reaching the measuring distance, + delta f feeds back to the Cassegrain telescope, the laser f0+fAOM+ Δ f goes through the optical switch into the second mixer, where the laser light f0And laser f0+fAOM+ Δ f phase mixing to obtain laser fAOM+ Δ f, the echo signal fs is the laser fAOM+Δf；
SS054, computer through comparing reference signal fRefAnd echo signal fsObtaining instantaneous wind speed corresponding to the measuring point and the measuring distance by using the difference frequency signal, wherein the instantaneous wind speed is a deviation component influencing the trajectory;
SS055, repeating the step SS052-SS054, obtaining deviation components of all measuring points and measuring distances, and drawing a chart;
SS056, the computer will make the chart information output to the display screen, the computer calculates the best shooting angle and output to the display screen, for the observer to watch.
CN201811281213.0A 2018-10-31 2018-10-31 Method for predicting deviation of trajectory of small arms based on laser wind measurement Active CN109459583B (en)

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CN112821175A (en) * 2020-12-22 2021-05-18 西南技术物理研究所 Micro-slab erbium glass laser for sniper crosswind speed measurement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105157488A (en) * 2015-09-21 2015-12-16 中国航天空气动力技术研究院 Unmanned aerial vehicle-based guided missile attack route planning method
CN106152876A (en) * 2015-04-15 2016-11-23 信泰光学(深圳)有限公司 Ballistic prediction system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL121934A (en) * 1997-10-09 2003-04-10 Israel Atomic Energy Comm Method and apparatus for fire control taking into consideration the wind
JPH11271350A (en) * 1998-03-20 1999-10-08 Nec Aerospace Syst Ltd Method and apparatus for measuring wind direction and wind velocity
CN101441053A (en) * 2007-12-19 2009-05-27 王智勇 Intelligent correcting device of shooting environmental parameter
FR2989466B1 (en) * 2012-04-16 2014-04-11 Epsiline DEVICE FOR DETERMINING WIND SPEED COMPRISING A PLURALITY OF LASER SOURCES
CN103823221A (en) * 2013-12-31 2014-05-28 西南技术物理研究所 Pulse laser coherent wind measuring radar
CN105095661A (en) * 2015-08-07 2015-11-25 路伟志 Sniper ballistic calculating system
CN204883405U (en) * 2015-08-14 2015-12-16 深圳市易特科信息技术有限公司 A wearable equipment for improving soldier shoots fighting capacity
CN105135943B (en) * 2015-09-01 2017-02-22 南通德尔塔光学有限公司 Sighting telescope and adjusting method thereof
CN206601068U (en) * 2017-03-16 2017-10-31 陕西师范大学 A kind of bow and arrow training aids

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106152876A (en) * 2015-04-15 2016-11-23 信泰光学(深圳)有限公司 Ballistic prediction system
CN105157488A (en) * 2015-09-21 2015-12-16 中国航天空气动力技术研究院 Unmanned aerial vehicle-based guided missile attack route planning method

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