CN112083380A - Electromagnetic compatible infrared/radar composite seeker - Google Patents
Electromagnetic compatible infrared/radar composite seeker Download PDFInfo
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- CN112083380A CN112083380A CN202010762161.XA CN202010762161A CN112083380A CN 112083380 A CN112083380 A CN 112083380A CN 202010762161 A CN202010762161 A CN 202010762161A CN 112083380 A CN112083380 A CN 112083380A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/027—Constructional details of housings, e.g. form, type, material or ruggedness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G3/00—Aiming or laying means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/0205—Mechanical elements; Supports for optical elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
- G01J5/041—Mountings in enclosures or in a particular environment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Engineering & Computer Science (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to an infrared/radar composite seeker with electromagnetic compatibility, and belongs to the technical field of electromagnetic compatibility. The rear end of a shell in the composite seeker is connected with a main support, the front end of the shell is connected with a ball cover, a thermal infrared imager and a radar antenna are arranged on a stable platform, and a high-frequency receiving module is arranged on the back of the radar antenna; the main support comprises a front fixing seat, a rear fixing seat and a supporting piece, the front fixing seat and the rear fixing seat are connected through the supporting piece, the stable platform is installed on the front fixing seat, and the power supply module, the transmitting module, the platform control module, the frequency synthesis system, the intermediate frequency receiving module, the infrared information processing module, the radar information processing module and the gyro signal processing module are sequentially connected on the rear fixing seat; the infrared/radar composite seeker can work normally in a complex electromagnetic environment, and the anti-electromagnetic interference capability and reliability of the infrared/radar composite seeker are improved.
Description
Technical Field
The invention relates to an infrared/radar composite seeker with electromagnetic compatibility, and belongs to the technical field of electromagnetic compatibility.
Background
The environmental adaptability is the adaptability of the assessment equipment to power supply, electromagnetic compatibility and mechanical environment, the electromagnetic compatibility of an electronic equipment is influenced by a plurality of factors such as structural form, materials, layout, wiring, grounding, filtering, shielding materials, active devices, power devices and the like, particularly along with the rapid development of large-scale integrated circuits and power electronic technologies, the motor and a control system thereof become a comprehensive automatic system integrating the motor, power electronics and microelectronics into a whole, and the complexity of the electromagnetic environment of the system is multiplied. In such a complicated electromagnetic environment, how to minimize the electromagnetic influence between the devices and ensure the normal operation of the system and each device is a subject to be studied intensively.
The infrared/radar composite seeker comprises a ball cover, a shell, a stable platform (comprising a loaded thermal infrared imager, a loaded radar antenna, a high-frequency receiving module, a frame, a motor, a gyroscope, a potentiometer, a transmission mechanism and the like), a platform control module, an infrared information processing module (comprising information fusion processing), a radar information processing module, a frequency synthesis system, a medium-frequency receiving module, a transmitting module, a gyroscope processing module, a power supply module and the like, wherein the infrared seeker or the radar seeker used for a single mode of the same projectile body has larger arrangement space of electronic components in the infrared/radar composite seeker, the distances among the functional modules and among the components are wider, main control devices such as a DSP (digital signal processor) and an FPGA (field programmable gate array) in the infrared information processing module or the radar information processing module and the platform control module can be far away from an electromagnetic interference source and can also be subjected to electromagnetic shielding treatment, is not easily influenced by external electromagnetic radiation interference and crosstalk. However, because the size and weight of the infrared/radar composite guide head are limited, the internal function module is designed in a miniaturized, integrated and multifunctional manner, and conventional layout, shielding, filtering, grounding and other measures cannot avoid that main control devices such as a DSP and an FPGA in the function module are not influenced by external electromagnetic radiation interference and crosstalk under the conditions of high working frequency and small space, and particularly cannot avoid that sensitive source infrared video signals are not influenced by voltage fluctuation of a power module, radar signal transmission and motor motion, and have adverse effects on imaging quality.
Disclosure of Invention
In view of the above, an object of the present invention is to provide an infrared/radar composite seeker with electromagnetic compatibility, which effectively solves the problems of the infrared/radar composite seeker that the space and the quality are limited, the product is miniaturized and integrated, the number of internal electronic components is various, the electromagnetic environment is complex, and the electromagnetic interference between the functional modules is serious, improves the electromagnetic environment of the infrared/radar composite seeker, reduces the electromagnetic radiation interference and crosstalk between signals, and improves the capability and the reliability of electromagnetic interference resistance.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an electromagnetic compatible infrared/radar composite seeker comprises a main support, a shell, a ball cover, a stable platform, a thermal infrared imager, a radar antenna, a high-frequency receiving module, a potentiometer, a motor, a functional module, a testing assembly and a testing cover; the thermal infrared imager and the radar antenna are arranged on the stable platform, and the high-frequency receiving module is installed on the back of the radar antenna; the azimuth ring and the pitching ring of the stable platform respectively comprise a potentiometer and a motor;
the function module comprises a power supply module, a transmitting module, a platform control module, a frequency synthesis system, an intermediate frequency receiving module, an infrared information processing module, a radar information processing module and a gyro signal processing module;
the main bracket comprises a front fixing seat, a rear fixing seat and a supporting piece, the front fixing seat and the rear fixing seat are connected through the supporting piece, the stable platform is installed on the front fixing seat, the rear fixing seat is provided with an overall interface, and the overall interface is used for supplying power to the composite seeker and outputting seeker guidance and video information; the power supply module, the transmitting module, the platform control module, the frequency synthesis system and intermediate frequency receiving module, the infrared information processing module, the radar information processing module and the gyro signal processing module are sequentially connected to the supporting piece and the rear fixing seat; the testing component is arranged on the supporting piece, and the testing component is opened at a position corresponding to the shell and is provided with a testing cover;
conducting oxidation treatment on the surface of the main support; each module is shielded by adopting an independent metal shell, and the surface of the metal shell is subjected to conductive oxidation treatment; and coating copper-silver plating conductive adhesive on the contact surface when each module is installed. The electric conductivity of the surface contact is enhanced while the overlap resistance is reduced.
Furthermore, a plurality of mounting holes of the module are formed in the supporting piece, and the transmitting module, the platform control module, the frequency synthesizing system, the intermediate frequency receiving module, the infrared information processing module, the radar information processing module and the gyro signal processing module are sequentially located in the mounting holes from one side to the other side of the supporting plate.
Furthermore, the connecting cables in the composite seeker are provided with wave-proof sleeves, the plugs of the connecting cables are provided with bent wire clamps, and the ends of the wave-proof sleeves are pressed into the bent wire clamps after being wound with the conductive adhesive tapes. In order to solve the problems that a gap exists between the wave-proof sleeve and the shielding shell of the functional module and the electromagnetic shielding effect is not good, the bent wire clamp is added to the plug of the connecting cable between the functional modules, the end part of the wave-proof sleeve is wound with the conductive adhesive tape and then pressed into the bent wire clamp, and the shielding effect of the wave-proof sleeve is enhanced. The connecting cable comprises a power supply module, a platform control module, an infrared information processing module, a radar information processing module and a general interface; the infrared information processing module is respectively connected with connecting cables among the thermal infrared imager, the platform control module, the radar information processing module, the testing component testing port and the overall interface; the platform control module is respectively connected with the gyro processing module and the test port of the test assembly through cables; a connecting cable between the radar antenna and the high-frequency receiving module; the high-frequency receiving module is respectively connected with cables among the frequency synthesis system, the intermediate-frequency receiving module and the transmitting module; the radar information processing module is respectively connected with cables between the frequency synthesis system and the intermediate frequency receiving module as well as between the radar information processing module and the test component test port; and the transmitting module, the frequency synthesizer system and the intermediate frequency receiving module are connected through cables.
Furthermore, the connection cables between the thermal infrared imager and the infrared information processing module, the general interface to the infrared information processing module, the platform control module and the infrared information processing module, the radar signal processing module and the infrared information processing module, the infrared information processing module and the test component test port, the platform control module and the test component test port, the radar signal processing module and the test component test port, the platform control module and the motor, the general interface and the power supply module, the power supply module and the platform control module, the power supply module and the infrared information processing module, and the power supply module and the radar information processing module are shielded in a twisted pair mode, and the power supply and output connection cables of the potentiometer are shielded in a single mode. The radiation of strong signals in the same wire harness is reduced, and the radiation interference outside the weak signals can be prevented.
Furthermore, a high-speed electric connector is adopted to transmit the video signal of the thermal infrared imager.
Furthermore, grooves are adopted between the testing assembly and the testing cover, between the testing cover and the shell, between the shell and the main support for sealing, and conductive rubber ropes are installed in the grooves, and meanwhile, the copper-plated silver conductive adhesive is coated on the contact surfaces, so that the shielding effect of external interference entering and internal interference leaking is enhanced.
Advantageous effects
1. The shell is of an integrated structure, except for a seam between the shell and the ball cover, a gap between the shell of the optical cabin and the shell of the electronic cabin in the traditional structure is avoided, electromagnetic radiation and receiving channels are reduced, and the shielding effect of the composite seeker is enhanced. All the functional modules are arranged on the main support, so that good conduction among the functional module shells is ensured, the potential difference among the functional module shells is effectively reduced, and the electromagnetic compatibility of the composite seeker is improved.
2. The function modules are reasonably distributed, so that the interference type module and the sensitive type module are separated, the infrared information processing module and the radar information processing module are far away from the transmitting module and the power supply module, and the interference of a high-power and strong interference module on main control devices such as a DSP (digital signal processor), an FPGA (field programmable gate array) and the like is reduced.
3. The function module adopts an independent shielding design, so that the problem that external interference enters the function module and the internal interference of the function module leaks out is reduced.
4. The electric connector between the functional modules is additionally provided with a bent wire clamp, and the end part of the wave-proof sleeve is pressed into the bent wire clamp after being wound with the conductive adhesive tape, so that the shielding effect of the wave-proof sleeve is enhanced.
5. The main support, the shell and the testing component structurally adopt a groove sealing design, conductive rubber ropes are installed in the grooves between the testing component and the testing cover, between the testing cover and the shell and between the shell and the main support, and proper copper-silver plating conductive adhesive is coated on the contact surfaces of the conductive rubber ropes, so that the shielding effect of external interference entering and internal interference leaking is enhanced.
Drawings
Fig. 1 is an integrated structure diagram of an infrared/radar composite seeker.
Fig. 2 is a schematic structural diagram of a main bracket of the infrared/radar composite seeker.
Fig. 3-4 are top views of functional module arrangements inside the infrared/radar composite seeker.
FIG. 5 is a partial view of the infrared/radar composite seeker test port and housing installation.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
As shown in fig. 1-5, an electromagnetic compatible infrared/radar composite seeker comprises a main support 9, a shell 20, a ball cover 21, a stable platform 22, a thermal infrared imager 11, a radar antenna 10, a high-frequency receiving module 8, a potentiometer, a motor, a functional module, a testing component 15 and a testing cover 16; the thermal infrared imager and the radar antenna 10 are arranged on the stable platform 22, and the high-frequency receiving module 8 is arranged on the back of the radar antenna 10; the stabilized platform 22 includes an azimuth ring, a pitch ring, and a gyroscope; an azimuth potentiometer 12 and an azimuth motor 13 are arranged on an azimuth ring of the stable platform 22; a pitching potentiometer 17 and a pitching motor 18 are arranged on a pitching ring of the stable platform 22;
the functional module comprises a power module 1, a transmitting module 2, a platform control module 3, a frequency synthesis system and intermediate frequency receiving module 4, an infrared information processing module 5, a radar information processing module 6 and a gyro signal processing module 7;
the main support 9 comprises a front fixing seat 91, a rear fixing seat 92 and a supporting piece 93, the front fixing seat 91 is connected with the rear fixing seat 92 through the supporting piece 93, the stable platform 22 is installed on the front fixing seat 91, the rear fixing seat 92 is provided with an overall interface 23, and the overall interface 23 is used for supplying power to the composite seeker and outputting seeker guidance and video information; the power module 1, the transmitting module 2, the platform control module 3, the frequency synthesis system and intermediate frequency receiving module 4, the infrared information processing module 5, the radar information processing module 6 and the gyro signal processing module 7 are sequentially connected to the supporting piece 93 and the rear fixed seat 92; the testing component 15 is arranged on the supporting piece 93, the position of the testing component 15 corresponding to the shell 20 is opened, and a testing cover 16 is arranged;
the surface of the main support 9 is subjected to conductive oxidation treatment; each module is shielded by adopting an independent metal shell, and the surface of the metal shell is subjected to conductive oxidation treatment; and coating copper-silver plating conductive adhesive on the contact surface when each module is installed. The electric conductivity of the surface contact is enhanced while the overlap resistance is reduced.
A plurality of module mounting holes are formed in the supporting piece 93, and the power module 1, the transmitting module 2, the platform control module 3, the frequency synthesis system and intermediate frequency receiving module 4, the infrared information processing module 5, the radar information processing module 6 and the gyro signal processing module 7 are sequentially located in the mounting holes.
The connecting cables in the composite seeker are all provided with wave-proof sleeves, the plug of each connecting cable is provided with a bent wire clamp, and the end parts of the wave-proof sleeves are pressed into the bent wire clamps after being wound with conductive adhesive tapes. In order to solve the problems that a gap exists between the wave-proof sleeve and the shielding shell of the functional module and the electromagnetic shielding effect is not good, the bent wire clamp is added to the plug of the connecting cable between the functional modules, the end part of the wave-proof sleeve is wound with the conductive adhesive tape and then pressed into the bent wire clamp, and the shielding effect of the wave-proof sleeve is enhanced. The connecting cable comprises a power supply module, a platform control module, an infrared information processing module, a radar information processing module and a general interface; the infrared information processing module is respectively connected with connecting cables among the thermal infrared imager, the platform control module, the radar information processing module, the testing component testing port and the overall interface; the platform control module is respectively connected with the gyro processing module and the test port of the test assembly through cables; a connecting cable between the radar antenna and the high-frequency receiving module; the high-frequency receiving module is respectively connected with cables among the frequency synthesis system, the intermediate-frequency receiving module and the transmitting module; the radar information processing module is respectively connected with cables between the frequency synthesis system and the intermediate frequency receiving module as well as between the radar information processing module and the test component test port; and the transmitting module, the frequency synthesizer system and the intermediate frequency receiving module are connected through cables.
Sensitive signals such as a score digital video signal and a serial port signal from the thermal infrared imager 11 to the infrared information processing module 5, a serial port signal from the general interface 23 to the infrared information processing module 5, a serial port signal from the platform control module 3 to the infrared information processing module 5, a serial port signal from the radar signal processing module 6 to the infrared information processing module 5, a serial port signal from the infrared information processing module 5 to a test port of the test component 15, a serial port signal from the platform control module 3 to a test port of the test component 15, and a serial port signal from the radar signal processing module 6 to a test port of the test component 15 are shielded by a twisted pair; adopting twisted pair shielding for interference signals such as driving signals from the platform control module 3 to the motor, power supply signals from the general interface 23 to the power supply module 1, power supply signals from the power supply module 1 to the platform control module 3, power supply signals from the power supply module 1 to the infrared information processing module 5 and power supply signals from the power supply module 1 to the radar information processing module 6; the power supply and the output of the potentiometer adopt a single shield. The radiation of strong signals in the same wire harness is reduced, and the radiation interference outside the weak signals can be prevented.
The video signal of the thermal infrared imager 11 is transmitted using a high-speed electrical connector 14.
The space between the test component 15 and the test cover 16, the space between the test cover 16 and the shell 20, and the space between the shell 20 and the main support 9 are all sealed by adopting grooves, conductive rubber ropes are all arranged in the grooves, and meanwhile, the surfaces of mutual contact are coated with copper-silver-plated conductive adhesive, so that the shielding effect of external interference entering and internal interference leaking is enhanced.
In summary, the invention includes but is not limited to the above embodiments, and any equivalent replacement or local modification made under the spirit and principle of the invention should be considered as being within the protection scope of the invention.
Claims (6)
1. An electromagnetic compatible infrared/radar composite seeker is characterized in that: the device comprises a main support (9), a shell (20), a ball cover (21), a stable platform (22), a thermal infrared imager (11), a radar antenna (10), a high-frequency receiving module (8), a potentiometer, a motor, a functional module, a testing component (15) and a testing cover (16); the infrared thermal imager is characterized in that the shell (20) is of an integrated structure, the rear end of the shell (20) is connected with the main support (9), the front end of the shell (20) is connected with the ball cover (21), the infrared thermal imager (11) and the radar antenna (10) are arranged on the stable platform (22), and the high-frequency receiving module (8) is arranged on the back of the radar antenna (10); a potentiometer and a motor are respectively arranged on the azimuth ring and the pitching ring of the stable platform (22);
the function module comprises a power supply module (1), a transmitting module (2), a platform control module (3), a frequency synthesis system and intermediate frequency receiving module (4), an infrared information processing module (5), a radar information processing module (6) and a gyro signal processing module (7);
the main support (9) comprises a front fixing seat (91), a rear fixing seat (92) and a supporting piece (93), the front fixing seat (91) is connected with the rear fixing seat (92) through the supporting piece (93), the stabilizing platform (22) is installed on the front fixing seat (91), the rear fixing seat (92) is provided with a general interface (23), and the general interface (23) is used for supplying power to the composite seeker and outputting seeker guidance and video information; the power module (1), the transmitting module (2), the platform control module (3), the frequency synthesis system and intermediate frequency receiving module (4), the infrared information processing module (5), the radar information processing module (6) and the gyro signal processing module (7) are sequentially connected to the supporting piece (93) and the rear fixing seat (92) in sequence; the testing component (15) is arranged on the supporting piece (93), and the testing component (15) is opened at a position corresponding to the shell (20) and is provided with a testing cover (16);
conducting oxidation treatment on the surface of the main support (9); each module is shielded by adopting an independent metal shell, and the surface of the metal shell is subjected to conductive oxidation treatment; and coating copper-silver plating conductive adhesive on the contact surface when each module is installed.
2. An electromagnetic compatible infrared/radar composite seeker as in claim 1 further comprising: the support piece (93) is provided with a plurality of mounting holes of the module, and the power module (1), the transmitting module (2), the platform control module (3), the frequency synthesis system and intermediate frequency receiving module (4), the infrared information processing module (5), the radar information processing module (6) and the gyro signal processing module (7) are sequentially located in the mounting holes.
3. An electromagnetic compatible infrared/radar composite seeker as in claim 1 further comprising: the connecting cables in the composite seeker are all provided with wave-proof sleeves, the plug of each connecting cable is provided with a bent wire clamp, and the end parts of the wave-proof sleeves are pressed into the bent wire clamps after being wound with conductive adhesive tapes.
4. An electromagnetic compatible infrared/radar composite seeker as in claim 1 further comprising: the thermal infrared imager (11) and the infrared information processing module (5), the general interface (23) to the infrared information processing module (5), the platform control module (3) and the infrared information processing module (5), the radar signal processing module (6) and the infrared information processing module (5), the infrared information processing module (5) and the test component (15) test port, the platform control module (3) and the test component (15) test port, the radar signal processing module (6) and the test component (15) test port, the connecting cables between the platform control module (3) and the motor, between the overall interface (23) and the power supply module (1), between the power supply module (1) and the platform control module (3), between the power supply module (1) and the infrared information processing module (5), and between the power supply module (1) and the radar information processing module (6) adopt twisted pair shielding, and the power supply and output connecting cables of the potentiometer adopt single shielding.
5. An electromagnetic compatible infrared/radar composite seeker as in claim 1 further comprising: and a high-speed electric connector (14) is adopted to transmit the video signal of the thermal infrared imager (11).
6. An electromagnetic compatible infrared/radar composite seeker as in claim 1 further comprising: the testing assembly is characterized in that grooves are adopted between the testing assembly (15) and the testing cover (16), between the testing cover (16) and the shell (20), between the shell (20) and the main support (9) for sealing, conductive rubber ropes are installed in the grooves, and meanwhile, copper-plated silver-plated conductive adhesive is coated on the mutual contact surfaces.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010762161.XA CN112083380A (en) | 2020-07-31 | 2020-07-31 | Electromagnetic compatible infrared/radar composite seeker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010762161.XA CN112083380A (en) | 2020-07-31 | 2020-07-31 | Electromagnetic compatible infrared/radar composite seeker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111450A (en) * | 2021-12-30 | 2022-03-01 | 西安雷通科技有限责任公司 | Guide head |
| CN115498391A (en) * | 2022-09-23 | 2022-12-20 | 成都泰格微电子研究所有限责任公司 | Active and passive radar composite seeker |
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| CN115498391B (en) * | 2022-09-23 | 2023-07-25 | 成都泰格微电子研究所有限责任公司 | Active-passive radar composite guide head |
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