CN104296607A - Laser fuse enclosed feed testing device, testing system and testing method - Google Patents
Laser fuse enclosed feed testing device, testing system and testing method Download PDFInfo
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- CN104296607A CN104296607A CN201410416216.6A CN201410416216A CN104296607A CN 104296607 A CN104296607 A CN 104296607A CN 201410416216 A CN201410416216 A CN 201410416216A CN 104296607 A CN104296607 A CN 104296607A
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- laser
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- fuze
- laser fuze
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Abstract
The invention discloses a laser fuse enclosed feed testing device, the testing device comprises a controller which receives initial time output by laser fuse and output an emission control signal through delay time delta T by taking the initial time as a reference; and a laser emitter, wherein an inlet circuit of the laser emitter is connected to the controller, and the laser emitter is used for receiving the emission control signal output by the controller and then emitting the laser to the laser fuse. The laser fuse enclosed feed testing device can obtain the delay time according to the laser fuse for detecting distance, and takes the initial time emitted by the laser fuse to generate the emission control signal; the laser emitter is controlled by the emission control signal to emit laser to the laser fuse, then a zone for a target can be discriminated according to the reception time and initial time of the laser, so that function examination of the laser fuse under laboratory environment can be realized.
Description
Technical field
The present invention relates to a kind of measuring technology of laser fuze, be specifically related to a kind of laser fuze and close feedback testing arrangement and test macro and method of testing.
Background technology
For laser fuze, test macro and method of testing check the important means of product.The low coverage detection of a target also ignition is in good time the major function of laser fuze, and directly reflect that the startup sensitivity of laser fuze detectivity and the Anti-interference algorithm of antijamming capability are the most important technical indicators of laser fuze, its numerical value quality directly has influence on the overall performance of laser fuze, especially Large visual angle laser fuze, require higher to test site, effective indoor static means of testing and closing of complete function present the important component part that test macro is laser fuze test macro.
The clock frequency of existing laser fuze signal transacting is general all at more than 10kHz, within clock accuracy can reach 4ns.Within a clock cycle (0 ~ about 100ms), need the process to the identification of target, the identification of interference and Comprehensive Signal Processing, the time delay of target and interference is distributed in the whole clock cycle (0 ~ about 100ms), and in order to the difference of better realize target and interference, the clock accuracy of signal transacting needs to control at about 4ns, therefore, complete signal simulation needed to carry out high-precision delays time to control within the whole clock cycle.
Same, in order to ensure certain operating distance, the transmitting power of laser fuze is usually all at more than 100W, and the sensitivity of receiver is all generally nanowatt ~ microwatt level, therefore do not need so large transmitting power to complete in the feedback test of closing of indoor, therefore need to carry out large-scale energy adjusting to transmitting power.
Traditional feedback test macro majority that closes directly launch window laser is imported receive window by optical fiber, rarer intermediate optical signal processing procedure, the decay of energy and signal delay are only adjusted in limited range, far can not to meet in the whole clock cycle energy adjusting of (60dB) in the signal delay adjustment of (a few nanosecond ~ tens microseconds) and dynamic range.
Summary of the invention
The invention provides a kind of laser fuze and close feedback testing arrangement and test macro and method of testing, realize the signal delay adjustment of long clock cycle and the energy adjusting of great dynamic range.
For achieving the above object, the invention provides a kind of laser fuze and close feedback testing arrangement, be characterized in, this testing arrangement comprises:
Controller, it receives the initial time that laser fuze exports, and is that benchmark exports emissioning controling signal after a delay time △ T with initial time;
Generating laser, its inlet circuit connects described controller, for receive controller export emissioning controling signal time, to laser fuze Emission Lasers.
Above-mentioned controller comprises:
Communication module, itself and laser fuze and generating laser communicate to connect;
Processing module, its circuit connects described communication module, delay time △ T is drawn according to the range finding distance of laser fuze, and when being received the initial time that laser fuze sends by communication module, with time of preliminary examination be benchmark after described delay time △ T, send emissioning controling signal by communication module to generating laser.
Above-mentioned delay time △ T tries to achieve according to formula (1):
△T=L/C （1）
Wherein, C represents the light velocity, and L is expressed as the range finding distance of laser fuze.
This testing arrangement also includes the energy attenuator that circuit connects generating laser, and the time delay optical fiber of circuit connection control device, energy attenuator also connects time delay optical fiber, and controller is connected laser fuze with time delay optical fiber.
A kind of laser fuze closes feedback test macro, and be characterized in, this system comprises above-mentioned laser fuze and closes feedback testing arrangement, and laser fuze; Laser fuze sends initial time and after a delay time, receives the laser that laser fuze closes the transmitting of feedback testing arrangement, according to the initial time that the time of reception and laser fuze that receive laser send, and the distance and position of simulation residing for measured target.
Above-mentioned laser fuze closes a method of testing for feedback testing arrangement, and be characterized in, the method comprises:
Controller draws a delay time △ T1=L1/C according to laser fuze and the distance L1 of simulation measured target, and C represents the light velocity;
Controller receive laser fuze export initial time T1, with initial time be benchmark after delay time △ T1, i.e. the T1+ △ T1 moment, produce and export emissioning controling signal:
Generating laser receives emissioning controling signal, namely to laser fuze Emission Lasers;
Laser fuze receives the laser of laser transmitter projects, and records time of reception T2;
Laser fuze, according to time of reception T2 and time of preliminary examination T1, simulates the distance and position residing for measured target.
Generating laser is aimed at laser fuze by testing arrangement before receiving initial time by above-mentioned controller.
The simulation measured target of above-mentioned differentiation laser fuze comprises between settling in an area:
The simulated target echo distance S1 of laser fuze detection simulation measured target on detection direction is drawn according to formula (2):
（2）
Wherein, T1 is the time of preliminary examination that laser fuze sends, and T2 is the time of reception that laser fuze receives laser from the time of preliminary examination after delay time △ T1, and C represents the light velocity.
Above-mentioned draw the simulated target echo distance S1 of simulation measured target after, according to the backward energy of simulated target echo distance S1 adjustment generating laser, and export target echo energy P1.
Above-mentioned simulated laser fuze detection simulation, by sidelong glance timestamp, goes back simulated laser fuze detection to interference;
If interference is L2 with the distance of laser fuze, draw an interference delay time △ T2=L2/C, C represents the light velocity;
Controller, in the T1+ △ T2 moment, controls generating laser to laser fuze Emission Lasers, obtains the time of reception T3 of interference;
Show that laser fuze detects the interference echo distance S2 of interference on detection direction according to formula (3):
（3）
Wherein, T1 is the time of preliminary examination that laser fuze sends, and T3 is the time of reception that laser fuze receives laser from the time of preliminary examination after interference delay time △ T2, and C represents the light velocity;
Adjust the backward energy of generating laser according to interference echo distance S2, export interference echo energy P2;
The interference of last laser fuze identification simulation measured target and simulation.
Laser fuze of the present invention closes feedback testing arrangement and test macro and method of testing and compares with the laser fuze measuring technology of prior art, its advantage is, the present invention obtains delay time according to laser fuze detection range, and the initial time sent with laser fuze is benchmark time delay
and produce emissioning controling signal; Generating laser is controlled by emissioning controling signal and to laser fuze Emission Lasers, then, between differentiating that target is settled in an area according to the time of reception and initial time that receive laser, thus, achieve the functional check of laser fuze in laboratory environments.
Accompanying drawing explanation
Fig. 1 is the structural representation that laser fuze of the present invention closes feedback testing arrangement;
Fig. 2 is the flow chart that laser fuze of the present invention closes feedback method of testing.
Detailed description of the invention
Below in conjunction with accompanying drawing, further illustrate specific embodiments of the invention.
The invention discloses a kind of laser fuze and close feedback testing arrangement and test macro and method of testing, solve existing laser fuze and close the problem that feedback test macro cannot realize the signal delay adjustment of long clock cycle and the energy adjusting of great dynamic range.
As shown in Figure 1, for a kind of laser fuze closes the embodiment of feedback testing arrangement, this testing arrangement comprises: controller 1, the generating laser 2 of inlet circuit connection control device output, circuit connects the energy attenuator 3 of generating laser and the time delay optical fiber 4 of circuit connection control device 1, and energy attenuator 3 also connects time delay optical fiber 4.Controller 1 and time delay optical fiber 3 are communicatively connected to laser fuze 5.
The initial time that controller 1 exports for receiving laser fuze, and be that benchmark exports emissioning controling signal to generating laser 2 after a delay time △ T with initial time.
Controller 1 includes: the communication module communicated to connect with laser fuze and generating laser, is connected the processing module of communication module with circuit.
Communication module is used for communicating with generating laser with laser fuze, receives the initial time that laser fuze sends, and sends emissioning controling signal to generating laser.
Processing module is used for drawing delay time △ T according to the range finding distance of laser fuze, and when being received the initial time that laser fuze sends by communication module, with time of preliminary examination be benchmark after described delay time △ T, send emissioning controling signal by communication module to generating laser.
Above-mentioned delay time △ T can try to achieve according to formula (1):
△T=L/C （1）
Wherein, C represents the light velocity, and L is expressed as the range finding distance of laser fuze.
Generating laser 2 for receive controller 1 export emissioning controling signal time, to laser fuze 5 Emission Lasers.
Energy attenuator 3 is for controlling the laser signal energy size of input laser fuze 5.
Time delay optical fiber 4 is for carrying out accurate delays time to control to the laser signal of input laser fuze 5.
The present invention's laser fuze also disclosed in a kind of laboratory closes feedback test macro, and this system comprises above-mentioned laser fuze and closes feedback testing arrangement and laser fuze.Laser fuze sends initial time and closes feedback testing arrangement to laser fuze, laser fuze closes feedback testing arrangement after a delay time, to laser fuze Emission Lasers, after laser fuze reception laser fuze closes the laser of feedback testing arrangement transmitting, according to the initial time that the time of reception and laser fuze that receive laser send, between differentiating that the simulation measured target of laser fuze is settled in an area, adjust laser energy in good time, and carry out identification and the process of target or interference.
Herein, differentiate that the work between simulation measured target location has been come by the circuit of laser fuze self, compared with the information preset in circuit, can determine between target location.The simulation measured target of laser fuze settle in an area between refer to the differentiation basis of time of laser fuze self circuit presets, this preset differentiation basis of time corresponding with range information, according to simulation measured target settle in an area between can draw simulate measured target from laser fuze distance regions between.
As shown in Figure 2, the present invention discloses the method for testing that a kind of laser fuze closes feedback testing arrangement, this sentence simulated range laser fuze 3 meters of be provided with simulation measured target and simulation 6 meters of set noisy situation as example, illustrate the embodiment of method of testing, the method includes the steps of:
Step 1, controller are according to the distance L of laser fuze with simulation measured target
1draw a delay time △ T
1=L
1/ C, C represent the light velocity, try to achieve delay time △ T
1=3/C.Simultaneously according to the distance L of the interference of laser fuze and simulation
2draw an interference delay time △ T
2=L
2/ C, C represent the light velocity, try to achieve interference delay time △ T
2=6/C.
Before step 2, controller receive initial time, close feedback testing arrangement by laser fuze and generating laser is aimed at laser fuze.Testing arrangement can be designed with special photoelectricity align structures and benchmark, be aimed at by automated manner.
Step 3, laser fuze are to controller transmission initial time T
1, controller receives initial time T
1.Controller is respectively according to the delay time △ T for simulation measured target
1=3/C, and for the interference delay time △ T that simulation is disturbed
2=6/C, draws the time exporting emissioning controling signal respectively, at T
1+ △ T
1(with initial time T
1for benchmark is through delay time △ T
1) and T
1+ △ T
2(with initial time T
1for benchmark is through interference delay time △ T
2) moment, produce respectively and export emissioning controling signal.
Step 4, generating laser are respectively at T
1+ △ T
1moment and T
1+ △ T
2the emissioning controling signal that reception controller exports, and respectively to laser fuze Emission Lasers.
Step 5, laser fuze receive the laser of laser transmitter projects, and record time of reception.Receiving with initial time T
1for benchmark time delay △ T
1the laser of rear transmitting, the first time of reception that laser fuze records is T
2.And receive with initial time T
1for benchmark time delay △ T
2the laser of rear transmitting, the second time of reception that laser fuze records is T
3.
Step 6, laser fuze are according to the first time of reception T
2with time of preliminary examination T
1, between differentiating that the simulation measured target of laser fuze is settled in an area, thus differentiate the distance and position of simulation residing for measured target, specifically comprise:
The simulated target echo distance S of laser fuze detection simulation measured target on detection direction is drawn according to formula (2)
1:
（2）
Wherein, T
1for the time of preliminary examination that laser fuze sends, T
2for laser fuze from the time of preliminary examination through delay time △ T
1the time of reception of rear reception laser, C represents the light velocity.
Meanwhile, show that laser fuze detects the interference echo distance S of interference on detection direction according to formula (3)
2:
（3）
Wherein, T
1for the time of preliminary examination that laser fuze sends, T
3for laser fuze from the time of preliminary examination through interference delay time △ T
2the time of reception of rear reception laser, C represents the light velocity.
Step 7, due to the backward energy in different distance different, need according to distance in good time adjustment.Therefore drawing the simulated target echo distance S of simulation measured target
1and rear interference echo distance S
2, according to simulated target echo distance S
1with interference echo distance S
2adjust the backward energy of generating laser respectively, and export target echo energy P1 and interference echo energy P2 respectively.
The backward energy of adjustment generating laser exports corresponding backward energy again after drawing required adjustment energy by controller according to working distance equation formula (4);
（4）
In formula (4):
for laser instrument transmitting power;
for optical transmitting system gross efficiency;
for receiving optics gross efficiency;
for atmospheric transmittance;
for body surface reflectivity; θ is the angle of sight line and body surface normal; L is the length (projection value) being launched the target site that visual field covers;
for the effective clear field of receiving optics; Φ F is the angle of visibility launching visual field; R
tfor operating distance.
Step 8, last laser fuze identification simulate the interference of measured target and simulation.
Feedback testing arrangement and test macro and method of testing is closed by laser fuze disclosed by the invention, namely achieve the simulation test of target in laboratory environments and interference, realize the signal delay adjustment of long clock cycle and the energy adjusting of great dynamic range in testing.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. laser fuze closes a feedback testing arrangement, it is characterized in that, this testing arrangement comprises:
Controller, it receives the initial time that laser fuze exports, and is that benchmark exports emissioning controling signal after a delay time △ T with initial time;
Generating laser, its inlet circuit connects described controller, for receive controller export emissioning controling signal time, to laser fuze Emission Lasers.
2. laser fuze as claimed in claim 1 closes feedback testing arrangement, and it is characterized in that, described controller comprises:
Communication module, itself and described laser fuze and generating laser communicate to connect;
Processing module, its circuit connects described communication module, delay time △ T is drawn according to the range finding distance of laser fuze, and when being received the initial time that laser fuze sends by communication module, with time of preliminary examination be benchmark after described delay time △ T, send emissioning controling signal by communication module to generating laser.
3. laser fuze as claimed in claim 1 or 2 closes feedback testing arrangement, and described delay time △ T tries to achieve according to formula (1):
△T=L/C （1）
Wherein, C represents the light velocity, and L is expressed as the range finding distance of laser fuze.
4. laser fuze as claimed in claim 1 closes feedback testing arrangement, it is characterized in that, this testing arrangement also includes the energy attenuator that circuit connects generating laser, the time delay optical fiber of circuit connection control device, energy attenuator also connects time delay optical fiber, and controller is connected laser fuze with time delay optical fiber.
5. laser fuze closes a feedback test macro, it is characterized in that, this system comprises as the laser fuze in Claims 1-4 as described in any one claim closes feedback testing arrangement, and laser fuze; Described laser fuze sends initial time and after a delay time, receives the laser that laser fuze closes the transmitting of feedback testing arrangement, according to the initial time that the time of reception and laser fuze that receive laser send, differentiates the distance and position of simulation residing for measured target.
6., as laser fuze as described in any one claim in claim 1 to 5 closes a method of testing for feedback testing arrangement, it is characterized in that, the method comprises:
Controller is according to the distance L of laser fuze with simulation measured target
1draw a delay time △ T
1=L
1/c, C represent the light velocity;
Controller receives the initial time T that laser fuze exports
1, be that benchmark is through delay time △ T with initial time
1after, i.e. T
1+ △ T
1in the moment, produce and export emissioning controling signal:
Generating laser receives emissioning controling signal, namely to laser fuze Emission Lasers;
Laser fuze receives the laser of laser transmitter projects, and records time of reception T
2;
Laser fuze is according to time of reception T
2with time of preliminary examination T
1, differentiate the distance and position of simulation residing for measured target.
7. method of testing as claimed in claim 6, is characterized in that, generating laser is aimed at laser fuze by testing arrangement before receiving initial time by described controller.
8. method of testing as claimed in claim 6, is characterized in that, the simulation measured target of described differentiation laser fuze comprises between settling in an area:
The simulated target echo distance S of laser fuze detection simulation measured target on detection direction is drawn according to formula (2)
1:
（2）
Wherein, T
1for the time of preliminary examination that laser fuze sends, T
2for laser fuze from the time of preliminary examination through delay time △ T
1the time of reception of rear reception laser, C represents the light velocity.
9. method of testing as claimed in claim 8, is characterized in that, described in draw the simulated target echo distance S of simulation measured target
1after, according to simulated target echo distance S
1the backward energy of adjustment generating laser, and export target echo energy P
1.
10. method of testing as claimed in claim 9, is characterized in that, described simulated laser fuze detection simulation, by sidelong glance timestamp, goes back simulated laser fuze detection to interference;
If interference is L with the distance of laser fuze
2, draw an interference delay time △ T
2=L
2/ C, C represent the light velocity;
Controller is at T
1+ △ T
2in the moment, control generating laser to laser fuze Emission Lasers, obtain the time of reception T of interference
3;
Show that laser fuze detects the interference echo distance S of interference on detection direction according to formula (3)
2:
（3）
Wherein, T
1for the time of preliminary examination that laser fuze sends, T
3for laser fuze from the time of preliminary examination through interference delay time △ T
2the time of reception of rear reception laser, C represents the light velocity;
According to interference echo distance S
2the backward energy of adjustment generating laser, exports interference echo energy P
2;
The interference of last laser fuze identification simulation measured target and simulation.
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|---|---|---|---|
| CN201410416216.6A CN104296607B (en) | 2014-08-21 | 2014-08-21 | Laser fuze closes feedback test device and test system and method for testing |
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|---|---|---|---|
| CN201410416216.6A CN104296607B (en) | 2014-08-21 | 2014-08-21 | Laser fuze closes feedback test device and test system and method for testing |
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| Publication Number | Publication Date |
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| CN104296607A true CN104296607A (en) | 2015-01-21 |
| CN104296607B CN104296607B (en) | 2016-11-16 |
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Cited By (6)
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| CN105162660A (en) * | 2015-09-17 | 2015-12-16 | 上海无线电设备研究所 | Pulse compression distance measurement method of star network conforming to IEEE802.15.4 standard |
| CN108572355A (en) * | 2018-04-04 | 2018-09-25 | 南京理工大学 | A kind of laser echo simulation device |
| CN109059687A (en) * | 2018-07-16 | 2018-12-21 | 南京理工大学 | A kind of Fuze Safety System dynamic arm time test device and test method |
| CN109884652A (en) * | 2019-03-04 | 2019-06-14 | 光梓信息科技（上海）有限公司 | Pulse laser driver and delay calibration method, laser radar and distance measuring method |
| CN111609771A (en) * | 2020-04-19 | 2020-09-01 | 北京理工大学 | Laser fuse spacing method in aerosol environment |
| CN113819818A (en) * | 2021-10-12 | 2021-12-21 | 北京宏动科技有限公司 | Ultra-wideband radio fuse dynamic simulation test device and method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162660A (en) * | 2015-09-17 | 2015-12-16 | 上海无线电设备研究所 | Pulse compression distance measurement method of star network conforming to IEEE802.15.4 standard |
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| CN109059687B (en) * | 2018-07-16 | 2024-04-12 | 南京理工大学 | Dynamic arming time testing device and testing method for fuse safety system |
| CN109884652A (en) * | 2019-03-04 | 2019-06-14 | 光梓信息科技（上海）有限公司 | Pulse laser driver and delay calibration method, laser radar and distance measuring method |
| CN111609771A (en) * | 2020-04-19 | 2020-09-01 | 北京理工大学 | Laser fuse spacing method in aerosol environment |
| CN111609771B (en) * | 2020-04-19 | 2021-05-18 | 北京理工大学 | Laser fuse spacing method in aerosol environment |
| CN113819818A (en) * | 2021-10-12 | 2021-12-21 | 北京宏动科技有限公司 | Ultra-wideband radio fuse dynamic simulation test device and method |
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