CN116625166A - Structure unwinding method and device for laser semi-active guide head - Google Patents
Structure unwinding method and device for laser semi-active guide head Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- H04B10/50—Transmitters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention relates to the field of a seeker, and discloses a structural unwinding method and a device of a laser semi-active seeker, wherein the method comprises the following steps: determining the channel code of the electronic information in the laser transmitting unit, and carrying out pulse modulation on the channel code to obtain a modulated pulse code; calculating the transmission power loss of the modulation pulse code, and selecting a transmitting laser signal of a laser transmitting unit; performing atmospheric channel conversion on the emitted laser signals to obtain command signal waves, and receiving the command signal waves by using a laser receiver of the seeker to obtain laser command waves; performing signal recovery on the laser instruction wave to obtain a recovered signal wave, and performing signal modulation on the recovered signal wave to obtain a square wave coding signal; and determining a correction instruction of the seeker by using the square wave coding signal, and modifying the rotating speed of the seeker by using the correction instruction to obtain a structural unwinding result of the seeker. The invention can improve the fault solving capability of the database, thereby improving the accuracy of the laser semi-active guide head.
Description
Technical Field
The invention relates to the field of seekers, in particular to a structural unwinding method and device of a laser semi-active seeker.
Background
The laser semi-active guidance head is also called as laser semi-active guidance head, and the main task of the laser semi-active guidance head is to track, identify and capture the target and simultaneously provide control signals required by guidance law. In the guidance process, after the formed control signal is received by the autopilot, the guidance system continuously tracks the target, so that the guided missile can be ensured to accurately hit the target.
At present, the application of the seeker is wider, the most common principle guidance such as laser, infrared, radar, television and the like of missiles is realized, and meanwhile, the effect is very obvious in the use process of weapon systems such as air, ground, air and the like. Taking a laser semi-active guidance seeker as an example, the main tasks are as follows: firstly, searching and detecting a laser echo reflected back by a target diffusely; secondly, the laser signal reflecting the target azimuth is converted into an electric signal and transmitted to the control system, so that the electric signal is relatively easy to be influenced by atmospheric conditions, and the accuracy of the laser semi-active guiding head is influenced, and therefore, a method for improving the accuracy of the laser semi-active guiding head is needed.
Disclosure of Invention
The invention provides a structural unwinding method and device of a laser semi-active guide head, which mainly aim to improve the accuracy of the laser semi-active guide head.
In order to achieve the above object, the present invention provides a method for unwinding a structure of a laser semi-active guiding head, comprising:
acquiring electronic information of a guidance electronic box from a laser transmission instruction system, wherein the laser transmission instruction system comprises a laser transmitting unit and a guide head, determining a channel code of the electronic information in the laser transmitting unit, and performing pulse modulation on the channel code to obtain a modulation pulse code;
calculating the transmission power loss of the modulation pulse code, and selecting a transmitting laser signal of the laser transmitting unit from the modulation pulse code based on the transmission power loss;
performing atmospheric channel conversion on the emitted laser signals to obtain command signal waves, and receiving the command signal waves by using a laser receiver in the seeker to obtain laser command waves;
performing signal recovery on the laser instruction wave to obtain a recovered signal wave, and performing signal modulation on the recovered signal wave to obtain a square wave coding signal;
and determining a correction instruction of the seeker by using the square wave coding signal, and modifying the rotating speed of the seeker by using the correction instruction to obtain a structural unwinding result of the seeker.
Optionally, the calculating the transmission power loss of the modulation pulse code includes:
the received power of the modulated pulse code is calculated using the following formula:
；
wherein ,representing the received power at transmission distance L +.>Indicating laser emission power, < >>Indicating the transmittance of the transmitting optical system, +.>Indicating the transmittance of the receiving optical system, +.>Representing the reception efficiency caused by the beam expansion, wherein +.>Indicating the divergence angle of the laser beam>Represents the atmospheric transmittance;
according to the received power, the transmission power loss of the modulation pulse code is calculated by using the following formula:
；
wherein ,representing said transmission power loss, < >>Representing the received power at transmission distance L +.>Indicating the laser emission power.
Optionally, the selecting the transmitting laser signal of the laser transmitting unit from the modulating pulse codes based on the transmission power loss includes:
selecting a minimum power loss from the transmission power losses;
inquiring the modulation pulse code corresponding to the minimum power loss to obtain a target pulse code;
and encoding the target pulse as a laser emission signal of the laser emission unit.
Optionally, the receiving the instruction signal wave by using the laser receiver in the seeker to obtain a laser instruction wave includes:
Obtaining red organic glass and an interference filter in the laser receiver, and filtering the instruction signal wave by using the red organic glass to obtain a filtering wave source;
performing secondary filtering on the filtered light wave source by using the interference filter to obtain secondary filtered light waves;
analyzing the spectral characteristics of the secondary filtered light waves;
and converting the secondary filtering light wave into the laser instruction wave based on the frequency spectrum characteristic.
Optionally, the performing signal recovery on the laser command wave to obtain a recovered signal wave includes:
identifying a particle motion trail of the laser command wave;
performing signal track recovery on the laser instruction wave based on the particle motion track to obtain a recovery track signal;
carrying out signal stochastic resonance on the recovered track signal to obtain a stochastic resonance signal;
calculating a signal-to-noise ratio of the stochastic resonance signal;
and carrying out signal recovery on the recovery track signal based on the signal-to-noise ratio of the signal to obtain the recovery signal wave.
Optionally, the signal modulating the recovered signal wave to obtain a square wave encoded signal includes:
performing signal source coding on the recovered signal wave to obtain a source coding signal;
Performing signal channel coding on the source coding signal to obtain a channel coding signal;
performing signal low frequency-signal high frequency conversion on the channel coding signal to obtain a converted high frequency signal;
and carrying out signal shaping detection on the converted high-frequency signal to obtain the square wave coding signal.
Optionally, the determining the correction instruction of the seeker by using the square wave coding signal includes:
the guide head is obtained, and a tail decoder of the guide head is utilized to receive the square wave coding signal, so that a preliminary signal is obtained;
extracting a signal frequency point of the preliminary signal;
judging whether the distribution state of the signal frequency points is a concentrated state or a dispersed state;
when the distribution state of the signal frequency points is the concentrated state, determining effective signals in the preliminary signals;
when the distribution state of the signal frequency points is the dispersion state, carrying out signal aggregation on the preliminary signals, and returning to the step of judging whether the distribution state of the signal frequency points is a concentrated state or a dispersion state;
performing signal secondary detection on the effective signal to obtain a secondary detection signal;
and performing instruction conversion on the secondary detection signal to obtain the correction instruction.
Optionally, the determining whether the distribution state of the signal frequency points is a concentrated state or a dispersed state includes:
decoding signal bits corresponding to the signal frequency points;
judging whether alternating leading strings exist in the signal bits or not;
when the alternating preamble strings exist in the signal bits, the distribution state of the signal frequency points is a concentrated state;
when the alternating preamble string is not present in the signal bit, the distribution state of the signal frequency points is a dispersion state.
Optionally, the modifying the rotation speed of the seeker by the correction instruction obtains a structural unwinding result of the seeker, including:
acquiring the historical rotation speed and the current rotation speed of the seeker;
calculating a speed deviation between the historical rotational speed and the current rotational speed;
correcting the stable wing attitude of the seeker by using the correction instruction based on the speed deviation;
collecting the adjusted guide head state data of the guide head;
and determining a structural unwinding result of the seeker according to the seeker state data.
In order to solve the above problems, the present invention further provides a structural unwinding device of a laser semi-active guiding head, the device comprising:
The code modulation module is used for acquiring the electronic information of the guidance electronic box from the laser transmission instruction system, wherein the laser transmission instruction system comprises a laser emission unit and a guide head, a channel code of the electronic information is determined in the laser emission unit, and the channel code is subjected to pulse modulation to obtain a modulation pulse code;
the signal selection module is used for calculating the transmission power loss of the modulation pulse code and selecting the transmitting laser signal of the laser transmitting unit from the modulation pulse code based on the transmission power loss;
the signal receiving module is used for carrying out atmospheric channel conversion on the emitted laser signals to obtain command signal waves, and the laser receivers in the seeker are used for receiving the command signal waves to obtain laser command waves;
the signal recovery module is used for carrying out signal recovery on the laser instruction wave to obtain a recovered signal wave, and carrying out signal modulation on the recovered signal wave to obtain a square wave coding signal;
and the speed correction module is used for determining a correction instruction of the seeker by utilizing the square wave coding signal, and modifying the rotating speed of the seeker by the correction instruction to obtain a structural unwinding result of the seeker.
It can be seen that, in the embodiment of the present invention, the channel code is pulse modulated by the modulator, so as to be used for processing the signal by the modulator, and the low-frequency channel code is modulated into the high-frequency modulation pulse code, which is beneficial to the transmission of the subsequent modulation pulse code on the high-frequency signal. Therefore, the structural unwinding method and the device for the laser semi-active guide head can improve the accuracy of the laser semi-active guide head.
Drawings
FIG. 1 is a flow chart of a method for de-screwing a structure of a laser semi-active guiding head according to an embodiment of the invention;
FIG. 2 is a schematic block diagram of a structural unwinding device of a laser semi-active guiding head according to an embodiment of the present invention;
Fig. 3 is a schematic diagram of an internal structure of an electronic device for implementing a structural unwinding method of a laser semi-active guiding head according to an embodiment of the present invention;
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The embodiment of the invention provides a structural unwinding method of a laser semi-active guide head. The execution main body of the structural unwinding method of the laser semi-active guide head comprises at least one of a server, a terminal and the like which can be configured to execute the method provided by the embodiment of the invention. In other words, the structural unwinding method of the laser semi-active guide head may be performed by software or hardware installed in a terminal device or a server device, and the software may be a blockchain platform. The service end includes but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, and the like. The server may be an independent server, or may be a cloud server that provides cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content delivery networks (Content Delivery Network, CDN), and basic cloud computing services such as big data and artificial intelligence platforms.
Referring to fig. 1, a flow chart of a method for unwinding a structure of a laser semi-active guiding head according to an embodiment of the invention is shown. In the embodiment of the invention, the structural unwinding method of the laser semi-active guide head comprises the following steps S1-S4:
s1, acquiring electronic information of a guidance electronic box from a laser transmission instruction system, wherein the laser transmission instruction system comprises a laser transmitting unit and a guide head, determining channel codes of the electronic information in the laser transmitting unit, and performing pulse modulation on the channel codes to obtain modulation pulse codes.
In the embodiment of the invention, the laser transmission instruction system is used as a control system of the laser semi-active guide head, and the target is tracked, identified and captured outwards by sending out instructions and laser signals; the laser emission unit is used as a key component for atmospheric laser transmission, and the parameters of the laser emission unit directly influence the communication distance and are used for detecting the selection of the parameters and the design problem of a laser emission antenna; the guide head is a laser semi-active guide head and is used for searching and detecting laser echoes reflected back by a target diffusely and converting laser signals reflecting the target azimuth into electric signals to be transmitted to the control system; the guidance electronic box is characterized by comprising all components of a traditional low-voltage distribution electronic box, including an air switch, a relay, an electric power monitoring terminal, a current transformer, a temperature detector and the like, wherein the air switch is an important electric appliance in a low-voltage distribution network and an electric dragging system, integrates control and various protection functions, the relay comprises functions of automatic regulation, safety protection, a conversion circuit and the like, the electric power monitoring terminal comprises real-time data of all monitoring points at any time and any place, the electric power monitoring terminal is used for modifying, setting and specially detecting any monitoring equipment at any time through a remote control technology, the current transformer is an instrument for measuring by converting primary side heavy current into secondary side heavy current according to detect the primary side heavy current, and the temperature detector is a detector for detecting the temperature of the environment in a thermosensitive mode and giving an alarm when the temperature of a measured object and the environment exceeds or is lower than a standard value;
In an embodiment of the present invention, the determining, in the laser emitting unit, the channel coding of the electronic information includes: identifying a binary symbol of the electronic information; constructing a coding group of the binary code elements; performing source coding on the coding group to obtain a coding source; and carrying out redundancy compression on the coding information source to obtain the channel coding.
The coding signal obtained by transforming the symbol sequence output by the source is specifically a method for searching the statistical characteristics of the symbol sequence output by the source, and the symbol sequence output by the source is transformed into the shortest code word sequence, so that the average information amount loaded by each symbol of the latter is the largest, and the original symbol sequence can be restored without distortion.
The electronic information is illustratively converted into code groups consisting of binary or multilevel code elements, namely the code groups, the code groups are encoded to a laser transmitter of the laser transmitting unit through a source encoder, the encoded information source is obtained in the laser transmitter, the transmission efficiency of the system is improved through the redundancy of the compressed information source, the channel codes are obtained, and a plurality of supervision codes are purposefully added on the basis of the channel codes to enable the system to have error detection or correction capability.
Further, the embodiment of the invention carries out pulse modulation on the channel code, so as to be used for carrying out signal processing on the channel code by utilizing a modulator, modulating the channel code with low frequency into the modulated pulse code with high frequency, and being beneficial to the subsequent transmission of the modulated pulse code on a high-frequency signal, wherein the signal processing refers to the processing process of carrying out processing on various types of electric signals according to various expected purposes and requirements, and comprises the processing processes of extracting, transforming, analyzing, synthesizing and the like on the signals.
In an embodiment of the present invention, the pulse modulating the channel code, and obtaining the modulated pulse code is implemented by using a modulator in the laser emitting unit.
S2, calculating the transmission power loss of the modulation pulse code, and selecting the transmitting laser signal of the laser transmitting unit from the modulation pulse code based on the transmission power loss.
In an embodiment of the present invention, the calculating the transmission power loss of the modulation pulse code includes: the received power of the modulated pulse code is calculated using the following formula:
；
wherein ,representing the received power at transmission distance L +. >Indicating laser emission power, < >>Indicating the transmittance of the transmitting optical system, +.>Indicating the transmittance of the receiving optical system, +.>Representing the reception efficiency caused by the beam expansion, wherein +.>Indicating the divergence angle of the laser beam>Represents the atmospheric transmittance;
according to the received power, the transmission power loss of the modulation pulse code is calculated by using the following formula:
；
wherein ,representing said transmission power loss, < >>Representing the received power at transmission distance L +.>Indicating the laser emission power.
Wherein the transmission power loss is represented, the reception power at the transmission distance L is represented, and the laser emission power is represented.
The transmission power loss refers to the degree of loss of laser power in the process of transmitting the laser beam from the transmitter to the receiver, and the factors include antenna loss, propagation loss of the laser beam, atmospheric attenuation and the like.
In an embodiment of the present invention, the selecting the transmitting laser signal of the laser transmitting unit from the modulated pulse codes based on the transmission power loss includes: selecting a minimum power loss from the transmission power losses; inquiring the modulation pulse code corresponding to the minimum power loss to obtain a target pulse code; and encoding the target pulse as a laser emission signal of the laser emission unit.
S3, performing atmospheric channel conversion on the emitted laser signals to obtain command signal waves, and receiving the command signal waves by using a laser receiver in the seeker to obtain laser command waves.
In an embodiment of the present invention, the performing an atmospheric channel conversion on the emitted laser signal to obtain an instruction signal wave includes: carrying out atmosphere channel interference on the channel for transmitting the laser signal to obtain a wave front fluctuation channel; and reducing the quality of the laser beam of the emitted laser signal based on the wave front fluctuation channel to obtain the command signal wave.
The laser signal is illustratively disturbed by an atmospheric channel, which includes various gases and suspended aerosols, dust, smoke and other tiny particles, and the main influencing factors include absorption and scattering, space loss, beam divergence, background noise and radiation, and atmospheric turbulence, etc., and the quality of the beam is changed by generating wave front random fluctuation, so as to obtain the command signal wave.
In the embodiment of the invention, the laser receiver is a precision instrument integrating a photoelectric sensor, an electronic technology and a microcomputer technology, and is mainly used for detecting the elevation deviation information of a rotary laser signal generated by a laser transmitter, and the elevation detection precision of the laser receiver directly influences the effect of receiving operation.
In an embodiment of the present invention, the receiving the command signal wave by using the laser receiver in the guide head to obtain a laser command wave includes: obtaining red organic glass and an interference filter in the laser receiver, and filtering the instruction signal wave by using the red organic glass to obtain a filtering wave source; performing secondary filtering on the filtered light wave source by using the interference filter to obtain secondary filtered light waves; analyzing the spectral characteristics of the secondary filtered light waves; and converting the secondary filtering light wave into the laser instruction wave based on the frequency spectrum characteristic.
Optionally, the process of filtering the command signal wave by using the red organic glass to obtain a filtered wave source is used for reducing interference of background light on the optical wave signal and improving stability of the laser receiver.
S4, carrying out signal recovery on the laser instruction wave to obtain a recovered signal wave, and carrying out signal modulation on the recovered signal wave to obtain a square wave coding signal.
In an embodiment of the present invention, the performing signal recovery on the laser command wave to obtain a recovered signal wave includes: identifying a particle motion trail of the laser command wave; performing signal track recovery on the laser instruction wave based on the particle motion track to obtain a recovery track signal; carrying out signal stochastic resonance on the recovered track signal to obtain a stochastic resonance signal; calculating a signal-to-noise ratio of the stochastic resonance signal; and carrying out signal recovery on the recovery track signal based on the signal-to-noise ratio of the signal to obtain the recovery signal wave.
The recovery principle of the signal recovery module is opposite to the process of converting the electronic information into the emitted laser signal, and the signal recovery module is used for combining signal processing with particle kinematics theory, taking a restored signal track as a starting point, directly carrying out resonance processing on the weak signal containing noise, influencing the degree of signal recovery and individual factors, sampling the periodic signal containing noise, estimating the noise variance and the signal frequency, and finally taking the maximum output signal-to-noise ratio as a target to automatically optimize the parameters of the recovery module. Optionally, the process of performing signal stochastic resonance on the initial recovery signal to obtain the recovery signal wave is used for highlighting the originally submerged signal and increasing the originally cut signal amplitude.
In the embodiment of the invention, the square wave coding signal is a pulse signal sequence composed of a plurality of smaller light pulses.
In an embodiment of the present invention, the performing signal modulation on the recovered signal wave to obtain a square wave encoded signal includes: performing signal source coding on the recovered signal wave to obtain a source coding signal; performing signal channel coding on the source coding signal to obtain a channel coding signal; performing signal low frequency-signal high frequency conversion on the channel coding signal to obtain a converted high frequency signal; and carrying out signal shaping detection on the converted high-frequency signal to obtain the square wave coding signal.
S5, determining a correction instruction of the seeker by using the square wave coding signal, and modifying the rotating speed of the seeker by the correction instruction to obtain a structural unwinding result of the seeker.
In an embodiment of the present invention, the determining the correction instruction of the guide head by using the square wave encoded signal includes: the guide head is obtained, and a tail decoder of the guide head is utilized to receive the square wave coding signal, so that a preliminary signal is obtained; extracting a signal frequency point of the preliminary signal; judging whether the distribution state of the signal frequency points is a concentrated state or a dispersed state; when the distribution state of the signal frequency points is the concentrated state, determining effective signals in the preliminary signals; when the distribution state of the signal frequency points is the dispersion state, carrying out signal aggregation on the preliminary signals, and returning to the step of judging whether the distribution state of the signal frequency points is a concentrated state or a dispersion state; performing signal secondary detection on the effective signal to obtain a secondary detection signal; and performing instruction conversion on the secondary detection signal to obtain the correction instruction.
For example, if the primary detection signal is valid, if the frequency points are in a more concentrated state, the signal is indicated to be valid, then the weak photoelectric signal detection technology is adopted to perform secondary detection, otherwise, if the signals are more scattered, the operation needs to be repeated until the frequency points are concentrated.
In yet another embodiment of the present invention, the determining whether the distribution state of the signal frequency points is a concentrated state or a dispersed state includes: decoding signal bits corresponding to the signal frequency points; judging whether alternating leading strings exist in the signal bits or not; when the alternating preamble strings exist in the signal bits, the distribution state of the signal frequency points is a concentrated state; when the alternating preamble string is not present in the signal bit, the distribution state of the signal frequency points is a dispersion state.
By detecting the current signal and judging whether the current signal is an encoded signal or not, and decoding to obtain a certain bit number, the decoding state can be exited by judging whether a preamble string with 0 and 1 alternating with each other exists at the beginning of the signal, if the preamble string exists, the signal is considered to be valid, decoding is continued, and if the preamble string does not exist, noise is judged, and the decoding state is exited.
Optionally, the process of performing signal secondary detection on the effective signal can be implemented through weak photoelectric signal detection technology. The weak photoelectric signal detection technology is to add optical knowledge on the basis of the weak signal detection technology, design a corresponding photoelectric sensor according to the photoelectric effect principle (the potential change generated on the surface of the whole device is caused when light irradiates on some devices), convert the optical signal to be detected into an electric signal convenient to measure through the designed photoelectric sensor, amplify and filter the converted electric signal to a certain extent, analyze other physical quantity change information obtained by the change of the optical signal, and extract the information of the detected signal.
In an embodiment of the present invention, the modifying the rotation speed of the seeker by the correction command to obtain a structural unwinding result of the seeker includes: acquiring the historical rotation speed and the current rotation speed of the seeker; calculating a speed deviation between the historical rotational speed and the current rotational speed; correcting the stable wing attitude of the seeker by using the correction instruction based on the speed deviation; collecting the adjusted guide head state data of the guide head; and determining a structural unwinding result of the seeker according to the seeker state data.
The guide head-mounted computer can timely read the rotation speed of the guide head when the reflected signals are received, identify and measure the determined target through the laser guide of the guide head synchronous control device, process the reflected laser signals when the target is locked, calculate the position deviation of the guide head at the moment through the guide head-mounted computer system, send correction information to the correction control system, then adjust the posture of the shell through adjusting the stabilizing wings at the middle part of the guide head, enable the guide head to move along a preset channel track, collect flight data from the guide head, obtain guide head state data, and enable the intelligent guide head transmitting system to achieve the purpose of de-rotation through controlling the rotation speed according to the guide head state data.
It can be seen that, in the embodiment of the present invention, the channel code is pulse modulated by the modulator, so as to be used for processing the signal by the modulator, and the low-frequency channel code is modulated into the high-frequency modulation pulse code, which is beneficial to the transmission of the subsequent modulation pulse code on the high-frequency signal. Therefore, the structural unwinding method of the laser semi-active guide head provided by the embodiment of the invention can improve the accuracy of the laser semi-active guide head.
Fig. 2 is a functional block diagram of a structural unwinding device of the laser semi-active guiding head according to the present invention.
The structural unwinding device 100 of the laser semi-active guide head of the present invention may be installed in an electronic device. The structural de-rotation device of the laser semi-active guiding head may include a code modulation module 101, a signal selection module 102, a signal receiving module 103, a signal recovery module 104 and a speed correction module 105 according to the implemented functions. The module according to the invention, which may also be referred to as a unit, refers to a series of computer program segments, which are stored in the memory of the electronic device, capable of being executed by the processor of the electronic device and of performing a fixed function.
In the present embodiment, the functions concerning the respective modules/units are as follows:
the code modulation module 101 is configured to obtain electronic information of the guided electronic box from a laser transmission instruction system, where the laser transmission instruction system includes a laser emission unit and a seeker, determine a channel code of the electronic information in the laser emission unit, and pulse the channel code to obtain a modulated pulse code;
the signal selection module 102 is configured to calculate a transmission power loss of the modulated pulse code, and select a transmission laser signal of the laser transmitting unit from the modulated pulse code based on the transmission power loss;
the signal receiving module 103 is configured to perform atmospheric channel conversion on the emitted laser signal to obtain an instruction signal wave, and receive the instruction signal wave by using a laser receiver in the seeker to obtain a laser instruction wave;
the signal recovery module 104 is configured to perform signal recovery on the laser instruction wave to obtain a recovered signal wave, and perform signal modulation on the recovered signal wave to obtain a square wave encoded signal;
the speed correction module 105 is configured to determine a correction instruction of the seeker by using the square wave encoding signal, and modify a rotation speed of the seeker by using the correction instruction, so as to obtain a structural unwinding result of the seeker.
In detail, the modules in the structure unwinding device 100 of the laser semi-active guiding head in the embodiment of the present invention use the same technical means as the structure unwinding method of the laser semi-active guiding head described in fig. 1, and can generate the same technical effects, which are not described herein.
As shown in fig. 3, a schematic structural diagram of an electronic device 1 implementing a structural unwinding method of a laser semi-active guiding head according to the present invention is shown.
The electronic device 1 may comprise a processor 10, a memory 11, a communication bus 12 and a communication interface 13, and may further comprise a computer program, such as a structural de-spinning program of a laser semi-active guidance head, stored in the memory 11 and executable on the processor 10.
The processor 10 may be formed by an integrated circuit in some embodiments, for example, a single packaged integrated circuit, or may be formed by a plurality of integrated circuits packaged with the same function or different functions, including one or more central processing units (Central Processing unit, CPU), a microprocessor, a digital processing chip, a graphics processor, a combination of various control chips, and so on. The processor 10 is a Control Unit (Control Unit) of the electronic device 1, connects the respective components of the entire electronic device 1 using various interfaces and lines, executes or executes programs or modules stored in the memory 11 (for example, executes a structural unwinding program of a laser semi-active guide head, etc.), and invokes data stored in the memory 11 to perform various functions of the electronic device 1 and process the data.
The memory 11 includes at least one type of readable storage medium including flash memory, a removable hard disk, a multimedia card, a card type memory (e.g., SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, etc. The memory 11 may in some embodiments be an internal storage unit of the electronic device 1, such as a removable hard disk of the electronic device 1. The memory 11 may in other embodiments also be an external storage device of the electronic device 1, such as a plug-in mobile hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the electronic device 1. Further, the memory 11 may also include both an internal storage unit and an external storage device of the electronic device 1. The memory 11 may be used not only for storing application software installed in the electronic device 1 and various data, such as a code of a structural unwinding program of the laser semi-active guide head, but also for temporarily storing data that has been output or is to be output.
The communication bus 12 may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus, or an extended industry standard architecture (extended industry standard architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. The bus is arranged to enable a connection communication between the memory 11 and at least one processor 10 etc.
The communication interface 13 is used for communication between the electronic device 1 and other devices, including a network interface and an employee interface. Optionally, the network interface may comprise a wired interface and/or a wireless interface (e.g. WI-FI interface, bluetooth interface, etc.), typically used to establish a communication connection between the electronic device 1 and other electronic devices 1. The employee interface may be a Display (Display), an input unit such as a Keyboard (Keyboard), or alternatively a standard wired interface, a wireless interface. Alternatively, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch, or the like. The display may also be referred to as a display screen or display unit, as appropriate, for displaying information processed in the electronic device 1 and for displaying a visual staff interface.
Fig. 3 shows only an electronic device 1 with components, it being understood by a person skilled in the art that the structure shown in fig. 3 does not constitute a limitation of the electronic device 1, and may comprise fewer or more components than shown, or may combine certain components, or may be arranged in different components.
For example, although not shown, the electronic device 1 may further include a power source (such as a battery) for supplying power to each component, and preferably, the power source may be logically connected to the at least one processor 10 through a power management device, so that functions of charge management, discharge management, power consumption management, and the like are implemented through the power management device. The power supply may also include one or more of any of a direct current or alternating current power supply, recharging device, power failure detection circuit, power converter or inverter, power status indicator, etc. The electronic device 1 may further include various sensors, bluetooth modules, wi-Fi modules, etc., which will not be described herein.
It should be understood that the embodiments described are for illustrative purposes only and are not limited in scope by this configuration.
The structural unwinding procedure of the laser semi-active guiding head stored in the memory 11 of the electronic device 1 is a combination of a plurality of computer programs, which, when run in the processor 10, can realize:
acquiring electronic information of a guidance electronic box from a laser transmission instruction system, wherein the laser transmission instruction system comprises a laser transmitting unit and a guide head, determining a channel code of the electronic information in the laser transmitting unit, and performing pulse modulation on the channel code to obtain a modulation pulse code;
Calculating the transmission power loss of the modulation pulse code, and selecting a transmitting laser signal of the laser transmitting unit from the modulation pulse code based on the transmission power loss;
performing atmospheric channel conversion on the emitted laser signals to obtain command signal waves, and receiving the command signal waves by using a laser receiver in the seeker to obtain laser command waves;
performing signal recovery on the laser instruction wave to obtain a recovered signal wave, and performing signal modulation on the recovered signal wave to obtain a square wave coding signal;
and determining a correction instruction of the seeker by using the square wave coding signal, and modifying the rotating speed of the seeker by using the correction instruction to obtain a structural unwinding result of the seeker.
In particular, the specific implementation method of the processor 10 on the computer program may refer to the description of the relevant steps in the corresponding embodiment of fig. 1, which is not repeated herein.
Further, the integrated modules/units of the electronic device 1 may be stored in a non-volatile computer readable storage medium if implemented in the form of software functional units and sold or used as a stand alone product. The computer readable storage medium may be volatile or nonvolatile. For example, the computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM).
The present invention also provides a computer readable storage medium storing a computer program which, when executed by a processor of an electronic device 1, may implement:
acquiring electronic information of a guidance electronic box from a laser transmission instruction system, wherein the laser transmission instruction system comprises a laser transmitting unit and a guide head, determining a channel code of the electronic information in the laser transmitting unit, and performing pulse modulation on the channel code to obtain a modulation pulse code;
calculating the transmission power loss of the modulation pulse code, and selecting a transmitting laser signal of the laser transmitting unit from the modulation pulse code based on the transmission power loss;
performing atmospheric channel conversion on the emitted laser signals to obtain command signal waves, and receiving the command signal waves by using a laser receiver in the seeker to obtain laser command waves;
performing signal recovery on the laser instruction wave to obtain a recovered signal wave, and performing signal modulation on the recovered signal wave to obtain a square wave coding signal;
and determining a correction instruction of the seeker by using the square wave coding signal, and modifying the rotating speed of the seeker by using the correction instruction to obtain a structural unwinding result of the seeker.
In the several embodiments provided in the present invention, it should be understood that the disclosed apparatus, device and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be other manners of division when actually implemented.
The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional module in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units can be realized in a form of hardware or a form of hardware and a form of software functional modules.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim concerned.
The embodiment of the invention can acquire and process the related data based on the artificial intelligence technology. Among these, artificial intelligence (Artificial Intelligence, AI) is the theory, method, technique and application system that uses a digital computer or a digital computer-controlled machine to simulate, extend and extend human intelligence, sense the environment, acquire knowledge and use knowledge to obtain optimal results.
Furthermore, it is evident that the word "comprising" does not exclude other elements or steps, and that the singular does not exclude a plurality. A plurality of units or means recited in the system claims can also be implemented by means of software or hardware by means of one unit or means. The terms second, etc. are used to denote a name, but not any particular order.
Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. A method for structural unwinding of a laser semi-active guiding head, the method comprising:
acquiring electronic information of a guidance electronic box from a laser transmission instruction system, wherein the laser transmission instruction system comprises a laser transmitting unit and a guide head, determining a channel code of the electronic information in the laser transmitting unit, and performing pulse modulation on the channel code to obtain a modulation pulse code;
calculating the transmission power loss of the modulation pulse code, and selecting a transmitting laser signal of the laser transmitting unit from the modulation pulse code based on the transmission power loss;
performing atmospheric channel conversion on the emitted laser signals to obtain command signal waves, and receiving the command signal waves by using a laser receiver in the seeker to obtain laser command waves;
performing signal recovery on the laser instruction wave to obtain a recovered signal wave, and performing signal modulation on the recovered signal wave to obtain a square wave coding signal;
and determining a correction instruction of the seeker by using the square wave coding signal, and modifying the rotating speed of the seeker by using the correction instruction to obtain a structural unwinding result of the seeker.
2. The method of structural de-rotation of a laser semi-active guidance head of claim 1, wherein said calculating the transmission power loss of the modulated pulse code comprises:
the received power of the modulated pulse code is calculated using the following formula:
；
wherein ,representing the received power at transmission distance L +.>Indicating laser emission power, < >>Indicating the transmittance of the transmitting optical system, +.>Indicating the transmittance of the receiving optical system, +.>Representing the reception efficiency caused by the beam expansion, wherein +.>Indicating the divergence angle of the laser beam>Represents the atmospheric transmittance;
according to the received power, the transmission power loss of the modulation pulse code is calculated by using the following formula:
；
wherein ,representing said transmission power loss, < >>Representing the received power at transmission distance L +.>Indicating the laser emission power.
3. The method of structural de-rotation of a laser semi-active guidance head of claim 1, wherein said selecting a lasing signal of said lasing unit from said modulated pulse code based on said transmission power loss comprises:
selecting a minimum power loss from the transmission power losses;
inquiring the modulation pulse code corresponding to the minimum power loss to obtain a target pulse code;
And encoding the target pulse as a laser emission signal of the laser emission unit.
4. The method for de-screwing the structure of the laser semi-active guiding head according to claim 1, wherein the step of receiving the command signal wave by the laser receiver in the guiding head to obtain a laser command wave comprises the steps of:
obtaining red organic glass and an interference filter in the laser receiver, and filtering the instruction signal wave by using the red organic glass to obtain a filtering wave source;
performing secondary filtering on the filtered light wave source by using the interference filter to obtain secondary filtered light waves;
analyzing the spectral characteristics of the secondary filtered light waves;
and converting the secondary filtering light wave into the laser instruction wave based on the frequency spectrum characteristic.
5. The method for de-rotating the structure of the laser semi-active guiding head according to claim 1, wherein the step of performing signal recovery on the laser command wave to obtain a recovered signal wave comprises the steps of:
identifying a particle motion trail of the laser command wave;
performing signal track recovery on the laser instruction wave based on the particle motion track to obtain a recovery track signal;
carrying out signal stochastic resonance on the recovered track signal to obtain a stochastic resonance signal;
Calculating a signal-to-noise ratio of the stochastic resonance signal;
and carrying out signal recovery on the recovery track signal based on the signal-to-noise ratio of the signal to obtain the recovery signal wave.
6. The method for de-rotating the structure of the laser semi-active guiding head according to claim 1, wherein the performing signal modulation on the recovered signal wave to obtain a square wave encoded signal comprises:
performing signal source coding on the recovered signal wave to obtain a source coding signal;
performing signal channel coding on the source coding signal to obtain a channel coding signal;
performing signal low frequency-signal high frequency conversion on the channel coding signal to obtain a converted high frequency signal;
and carrying out signal shaping detection on the converted high-frequency signal to obtain the square wave coding signal.
7. The method of claim 1, wherein determining the correction command for the guide head using the square wave encoded signal comprises:
the guide head is obtained, and a tail decoder of the guide head is utilized to receive the square wave coding signal, so that a preliminary signal is obtained;
extracting a signal frequency point of the preliminary signal;
Judging whether the distribution state of the signal frequency points is a concentrated state or a dispersed state;
when the distribution state of the signal frequency points is the concentrated state, determining effective signals in the preliminary signals;
when the distribution state of the signal frequency points is the dispersion state, carrying out signal aggregation on the preliminary signals, and returning to the step of judging whether the distribution state of the signal frequency points is a concentrated state or a dispersion state;
performing signal secondary detection on the effective signal to obtain a secondary detection signal;
and performing instruction conversion on the secondary detection signal to obtain the correction instruction.
8. The method for de-rotating the structure of the laser semi-active guiding head according to claim 7, wherein the determining whether the distribution state of the signal frequency points is a concentrated state or a dispersed state comprises:
decoding signal bits corresponding to the signal frequency points;
judging whether alternating leading strings exist in the signal bits or not;
when the alternating preamble strings exist in the signal bits, the distribution state of the signal frequency points is a concentrated state;
when the alternating preamble string is not present in the signal bit, the distribution state of the signal frequency points is a dispersion state.
9. The method of claim 1, wherein said modifying the rotational speed of the seeker by the modification command results in a structural de-rotation of the seeker, comprising:
acquiring the historical rotation speed and the current rotation speed of the seeker;
calculating a speed deviation between the historical rotational speed and the current rotational speed;
correcting the stable wing attitude of the seeker by using the correction instruction based on the speed deviation;
collecting the adjusted guide head state data of the guide head;
and determining a structural unwinding result of the seeker according to the seeker state data.
10. A structural de-rotation device for a laser semi-active guide head, the device comprising:
the code modulation module is used for acquiring the electronic information of the guidance electronic box from the laser transmission instruction system, wherein the laser transmission instruction system comprises a laser emission unit and a guide head, a channel code of the electronic information is determined in the laser emission unit, and the channel code is subjected to pulse modulation to obtain a modulation pulse code;
the signal selection module is used for calculating the transmission power loss of the modulation pulse code and selecting the transmitting laser signal of the laser transmitting unit from the modulation pulse code based on the transmission power loss;
The signal receiving module is used for carrying out atmospheric channel conversion on the emitted laser signals to obtain command signal waves, and the laser receivers in the seeker are used for receiving the command signal waves to obtain laser command waves;
the signal recovery module is used for carrying out signal recovery on the laser instruction wave to obtain a recovered signal wave, and carrying out signal modulation on the recovered signal wave to obtain a square wave coding signal;
and the speed correction module is used for determining a correction instruction of the seeker by utilizing the square wave coding signal, and modifying the rotating speed of the seeker by the correction instruction to obtain a structural unwinding result of the seeker.
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