CN116482689A - Shipborne multiband coplanar high-integration phased array radar RCS measurement system - Google Patents
Shipborne multiband coplanar high-integration phased array radar RCS measurement system Download PDFInfo
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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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
- G01S13/917—Radar or analogous systems specially adapted for specific applications for traffic control for marine craft or other waterborne vessels
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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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/66—Radar-tracking systems; Analogous systems
- G01S13/72—Radar-tracking systems; Analogous systems for two-dimensional tracking, e.g. combination of angle and range tracking, track-while-scan radar
- G01S13/723—Radar-tracking systems; Analogous systems for two-dimensional tracking, e.g. combination of angle and range tracking, track-while-scan radar by using numerical data
- G01S13/726—Multiple target tracking
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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
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/411—Identification of targets based on measurements of radar reflectivity
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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Abstract
The invention provides a ship-borne multiband coplanar high-integration phased array radar RCS measurement system, which is characterized in that: the system comprises a four-band radar unit, a stable platform, a power supply, an antenna housing, a temperature stabilizing unit and a comprehensive information processing unit; wherein: the four-band radar unit comprises a C-band radar, an X-band radar, a Ku-band radar and a Ka-band radar, and the stable platform is provided with a control unit; the control unit is respectively connected with each band radar of the four-band radar unit in a communication way and is used for transmitting monitoring and data signals with each band radar of the four-band radar unit; the power supply supplies power to the stabilized platform and the control unit of the stabilized platform, and comprises a power interface for supplying power to the shipborne multiband coplanar high-integration phased array radar RCS measurement system from outside; the four-band radar unit, the stable platform and the like are arranged in the radome. The invention adopts a wide bandwidth scanning active phased array system, adopts a multi-band high-integration coplanar design, and has multi-band, multi-angle and common-view field measurement capability.
Description
Technical Field
The invention belongs to the technical field of radar systems and radar measurement, and particularly relates to a shipborne multiband coplanar high-integration phased array radar RCS measurement system.
Background
Electromagnetic stealth technology has become a widely adopted technology for various weapon systems in all countries of the world, and has been widely applied to various weapon systems of airplanes, missiles and the like. The core goal is to reduce the Radar Cross Section (RCS) of the target by various means.
In order to evaluate stealth performance, corresponding measurement techniques are required. The phased array radar is widely applied in recent years, has the advantages of high transmitting power, high anti-interference capability and the like, and can fully exert the advantages when being applied to the RCS measurement field. The ship-borne platform has high load and good maneuverability, can perform ocean maneuver tests, and can meet the requirements of different measurement scenes.
Since the conventional phased array radar apparatus cannot establish a relationship between echo power and target RCS, it is necessary to design a multiband, on-board RCS measurement system in order to enable RCS measurement.
Disclosure of Invention
In view of the above, the invention provides a shipborne multiband coplanar high-integration phased array radar RCS measurement system which can obtain electromagnetic scattering characteristics of a multiband target to be measured, has a longer measurement distance and has searching and tracking capabilities. Aiming at the problem that the ship-borne platform shakes when encountering stormy waves, the invention designs the bearing stable platform, and can realize accurate test when the ship body swings.
The utility model provides a ship-borne multiband coplane high integration phased array radar RCS measurement system which characterized in that: the system comprises a four-band radar unit, a stable platform, a power supply, an antenna housing, a temperature stabilizing unit and a comprehensive information processing unit; wherein:
the four-band radar unit comprises a C-band radar, an X-band radar, a Ku-band radar and a Ka-band radar; the C-band radar, the X-band radar and the Ku-band radar are array surface radars, the three radars are directly arranged on the radiation surface of the four-band radar unit frame, the antenna array surface of the Ka-band radar is arranged on the radiation surface of the four-band radar unit frame, and the comprehensive electronic unit of the Ka-band radar is arranged on the base of the four-band radar unit frame;
the stable platform is provided with a control unit, and the control unit receives and transmits a monitoring signal of the stable platform to control the pose of the stable platform; the control unit is respectively connected with each band radar of the four-band radar unit in a communication way and is used for transmitting monitoring and data signals with each band radar of the four-band radar unit;
the power supply supplies power to the stabilized platform and the control unit of the stabilized platform, and comprises a power interface for supplying power to the shipborne multiband coplanar high-integration phased array radar RCS measurement system from outside;
four wave band radar unit, stabilized platform, temperature stabilization unit and power are installed in the radome, and temperature stabilization unit is used for controlling the temperature in the radome and keeps stable.
The comprehensive information processing unit is used for controlling the working mode of the system and processing radar data; the comprehensive information processing unit is in communication connection with the control unit of the stable platform and is used for bidirectionally transmitting instructions/data and monitoring signals of the stable platform.
2. The on-board multi-band co-planar high-integration phased array radar RCS measurement system of claim 1, wherein: the four-band radar unit is arranged on the stabilizing platform, the stabilizing platform is fixedly arranged at the high position outside the cabin, the four-band radar unit outside the cabin, the stabilizing platform, the temperature stabilizing unit and the power supply are arranged in the antenna housing, and the comprehensive information processing unit is arranged on a standard cabinet in the cabin.
3. The on-board multi-band co-planar high-integration phased array radar RCS measurement system of claim 1, wherein: the four-band radar unit is designed into a single-station full-coherent pulse active phased array system, and a four-band radar unit frame bears C-band radar, X-band radar, ku-band radar and Ka-band radar, and the four-band radar array surfaces are arranged in a coplanar manner, so that a plurality of band radars can work in a coplanar manner at the same time, and the accuracy of RCS multiband measurement of a moving target is guaranteed.
4. The on-board multi-band co-planar high-integration phased array radar RCS measurement system of claim 1, wherein:
the Ka-band radar and the Ku-band radar are distributed on the upper part of the radiation surface of the four-band radar unit frame and far away from the base and the left and right arm-shaped supporting structures; and arranging and installing the radar array surface on the radiating surface of the unit frame in an inward arrangement.
5. The measurement method of the on-board multiband coplanar high-integration phased array radar RCS measurement system according to claim 1, wherein: the comprehensive information processing unit controls the system to work in the following working modes according to external instructions:
(1) 360 DEG detection mode for sea/air target
360-degree detection of the sea/air target is a scanning-while-Tracking (TWS) working mode; while tracking the detected target, searching for a new target, in a scanning side Tracking (TWS) mode, searching and tracking are essentially bundled together, and the period of the search airspace is the refresh rate of the tracking data.
(2) Sea/air target sector/small sector detection mode
The working mode of tracking TWS while scanning is designed for sea/empty target sector/small sector detection, and a sector/small sector detection mode is adopted for the discovered key target;
(3) High resolution one-dimensional range profile (HRRP) mode
The high-resolution one-dimensional range profile (HRRP) mode can rapidly obtain a target range-oriented high-resolution image and acquire range-oriented profile and shape structure related information; after the target is found in the scanning mode or the target position is obtained by other means, the beam is directed to the ship target, and the distance pulse compression and the azimuth non-coherent accumulation are completed; acquiring the change of a target scattering center along with the radar observation distance, and acquiring a target RCS or carrying out target identification through the distribution of the scattering center;
(4) Inverse Synthetic Aperture (ISAR) imaging mode
An Inverse Synthetic Aperture (ISAR) imaging mode is used for finding a target in a scanning mode or acquiring target position information by other means, then directing a beam to the target, and finishing ISAR imaging processing after resident pulse accumulation;
(5) Target RCS measurement mode
The target RCS measurement mode can be used for RCS measurement after the target position is determined, or different waveforms of a point frequency pulse waveform, a frequency stepping pulse waveform and a linear frequency modulation pulse waveform are transmitted according to the set parameters of requirements to carry out RCS measurement;
(6) Ocean and meteorological environment data acquisition mode
Under the conditions of different sea areas and different sea conditions, echo data acquisition is carried out according to the set parameters required for enriching an environment database, and meanwhile, the current meteorological information can be acquired and meteorological echo data can be processed;
(7) External scaling mode
And performing external calibration test modes according to different calibration scenes.
Compared with the prior art, the invention has the advantages that
1. The invention adopts a wide bandwidth scanning active phased array system, adopts a multi-band high-integration coplanar design, and has multi-band, multi-angle and common-view field measurement capability.
2. The stable platform provided by the invention adopts azimuth and pitching two-dimensional machine scanning to provide stable wave beam pointing of the antenna array surface, and can avoid wave beam pointing errors caused by wind waves.
3. The radar of each wave band adopts electric scanning to realize rapid detection of the target and high-precision measurement of RCS. Meanwhile, the system has the searching and tracking measurement capabilities.
4. The multi-band RCS measurement method can realize real-time tracking of the complex moving target under various complex sea conditions and simultaneously carry out multi-band RCS measurement.
Drawings
Fig. 1 is a diagram showing the composition and interconnection relationship of a shipboard multiband coplanar highly integrated phased array radar RCS measurement system according to an embodiment of the present invention.
Fig. 2 is a physical diagram of an on-board multiband coplanar high-integration phased array radar RCS measurement system according to an embodiment of the invention.
Fig. 3 is a diagram of the composition and interconnection of single band radar units according to one embodiment of the present invention.
Fig. 4 is a diagram of a C-band phased array antenna design in accordance with one embodiment of the invention.
Fig. 5 is a diagram of an X-band phased array antenna design in accordance with one embodiment of the invention.
Fig. 6 is a diagram of a Ku band phased array antenna design in accordance with one embodiment of the invention.
Fig. 7 is a diagram of a Ka band phased array antenna design in accordance with one embodiment of the invention.
Fig. 8 is a high resolution one-dimensional range profile of different targets acquired by an on-board multi-band co-planar high integration phased array radar RCS measurement system according to one embodiment of the invention.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings and detailed description, including but not limited to the following examples.
As shown in fig. 1, this embodiment provides an on-board multi-band coplanar highly integrated phased array radar RCS measurement system. As shown in fig. 1, the system comprises a four-band radar unit, a stable platform, a power supply, a radome, a temperature stabilizing unit and a comprehensive information processing unit.
The four-band radar unit comprises a C-band radar, an X-band radar, a Ku-band radar and a Ka-band radar.
The four-band radar unit is arranged on the stable platform, the stable platform is fixedly arranged at the high position outside the cabin, radar beams are prevented from being blocked, and the four-band radar unit, the stable platform and the power supply outside the cabin are arranged in the radome; the integrated information processing unit is arranged on a standard cabinet in the cabin. The external interface of the multiband measuring system comprises a display control interface, a data interface and a power interface.
The four-band radar unit completes the functions of generating, transmitting, receiving, collecting and the like of C/X/Ku/Ka band radar signals, is composed of four band radar array surfaces, and the four-band antenna adopts a common-port-surface integrated design, so that measurement errors can be reduced.
In order to realize four-band coplanar design, the invention has high-integration hardware design, and simultaneously adopts TR components with different bands arranged in a partitioning way to realize multi-band common-aperture coplanar. The interference problem of different wave bands when working simultaneously is solved, and the high-integration coplanar phased array radar RCS test system is formed.
The stabilized platform is provided with a control unit, and the control unit receives and transmits stabilized platform monitoring signals to control the pose of the stabilized platform. The control unit is respectively connected with the radar of each wave band of the four-wave band radar unit in a communication way and is used for transmitting monitoring and data signals with the radar of each wave band of the four-wave band radar unit.
The stable platform consists of a supporting structure, an azimuth driving and measuring mechanism, a pitching driving and measuring mechanism and a gesture measuring device, and functions of supporting, azimuth rotation, pitching rotation, servo control and the like of the four-band antenna unit are completed. In combination with a stabilized platform, the invention can be arranged not only on a fixed platform but also on a mobile platform, in particular a ship on the platform. Through the stable supporting structure, the invention can realize the measurement of the electromagnetic scattering characteristics of the target and the background under the complex sea conditions.
The power supply supplies power to the stabilized platform and the control unit of the stabilized platform, and comprises a power interface for supplying power to the shipborne multiband coplanar high-integration phased array radar RCS measurement system from outside. The power supply unit converts the shipborne power supply into a secondary power supply required by the operation of the four-band radar unit, and distributes the secondary power supply to each component unit. Wherein, the power interface is a system external interface.
Four wave band radar unit, stabilized platform, temperature stabilization unit and power are installed in the radome, and temperature stabilization unit is used for controlling the temperature in the radome and keeps stable. The radome has the main functions of rain prevention, wind prevention, salt fog prevention and the like for the outdoor radar equipment under the wave-transmitting condition.
The comprehensive information processing unit is used for controlling the working mode of the system and processing radar data, and is provided with a display control interface and an echo data interface, wherein the display control interface and the echo data interface are external interfaces of the system and are used for interacting with external data of the system, and the comprehensive information processing unit is in communication connection with the control unit of the stable platform and is used for bidirectionally transmitting instructions/data and monitoring signals of the stable platform.
The air conditioner provides a heat dissipation function for equipment in the radome. The invention can be ensured to carry out long-time measurement under the conditions of all weather and all days.
Fig. 2 is a physical diagram of an on-board multiband coplanar high-integration phased array radar RCS measurement system according to an embodiment of the invention. Four wave band radar unit installs on stabilized platform, and stabilized platform fixed mounting is in the eminence outside the cabin, avoids radar wave beam to be sheltered from, and four wave band radar unit, stabilized platform, temperature stabilization unit and the power of outside the cabin are installed in the radome, and integrated information processing unit installs on the standard rack in the cabin.
The four-band radar unit is designed into a single-station full-coherent pulse active phased array system, the four-band radar unit frame bears C, X, ku and Ka four-band radars, and the four-band radar array surfaces are arranged in a coplanar manner, so that a plurality of band radars can work in a coplanar manner at the same time, and the accuracy of RCS multiband measurement of a moving target is ensured. The azimuth mechanical scanning range is 360 degrees, the pitching mechanical scanning range is-30 degrees to +60 degrees, and the coplanar design of C, X, ku and Ka four-wave-band antennas is adopted, so that measurement errors are reduced, and the comparison of target RCS of different wave bands is convenient.
Wherein C, X, ku wave band radar is the battle array radar, and three radar direct mount is on four wave band radar unit frame radiating surface, and the antenna battle array of Ka wave band radar is installed on four wave band radar unit frame's radiating surface, and the integrated electronic unit of Ka wave band radar is installed on four wave band radar unit frame's base.
Considering the influence of a stable platform base and a left arm-shaped supporting structure on the near field of radar waves in the working process of the radar, the layout of four-band radar on the radiation surface of a four-band radar unit frame is as follows:
(1) Considering that Ka-band radar and Ku-band radar are more sensitive to near-field influence, the Ka-band radar and the Ku-band radar are distributed on the upper part of the radiation surface of the four-band radar unit frame and far away from the base and the left-right arm-shaped supporting structures;
(2) And arranging and installing the radar array surface on the radiating surface of the unit frame in an inward arrangement.
Fig. 3 is a diagram of the composition and interconnection of single band radar units according to one embodiment of the present invention. The different wave bands are all made of active phased array systems, and are composed of a radiation array surface, a T/R component array, a feed network, a wave control power supply, radio frequency synthesis, digital synthesis and a radar frame, wherein the radiation array surface, the T/R component array, the feed network, the radio frequency synthesis and the digital synthesis are sequentially connected, and the wave control power supply is respectively connected with the T/R component array and the digital synthesis. The single-band radar unit external interface comprises a power interface and transmits monitoring and data signals through an optical fiber and a control unit of the stable platform.
The radiating array plane of the C-band phased array antenna is shown in fig. 4. The C-band phased array antenna radiation array surface comprises a plurality of C-band radiation units, the electrical dimension of the C-band phased array antenna radiation array surface is 318mm in distance direction and 318mm in azimuth direction, 12C-band radiation units are arranged in the distance direction, the distance between the C-band radiation units is designed to be 26.5mm in distance direction and 26.5mm in azimuth direction, the whole radiation array surface adopts a rectangular arrangement mode, 144C-band radiation units are altogether, a C-band receiving and transmitting channel is formed by 12C-band radiation units in distance direction, and 12 receiving and transmitting channels are arranged in azimuth direction.
The radiating array plane of the X-band phased array antenna is shown in fig. 5. The electric size of the X-band phased array surface layer is 256mm away from, 256mm in azimuth, 16X-band radiating units are arranged away from, 16X-band radiating units are arranged in azimuth, the distance between the X-band radiating units is designed to be 16mm away from, 16mm in azimuth, and the whole radiating array surface adopts a rectangular grid corner cut arrangement mode.
The Ku band phased array antenna radiating array plane is shown in fig. 6. The Ku wave band phased array antenna radiation array surface comprises a plurality of Ku wave band radiation units, the electric size of the Ku wave band phased array antenna radiation array surface is 192mm in distance direction and 304mm in azimuth direction, 16 Ku wave band radiation units are arranged in distance direction, 32 Ku wave band radiation units are arranged in azimuth direction, the distance between the Ku wave band radiation units is 12mm in distance direction and 9.5mm in azimuth direction, and the whole radiation array surface adopts a rectangular arrangement mode.
The radiation array plane of the Ka-band phased array antenna is shown in fig. 7. The Ka-band phased array antenna radiating array surface adopts a waveguide slot array antenna mode, the azimuth direction is 96 Ka-band radiating units, the distance is 1 Ka-band radiating unit, each Ka-band radiating unit is driven by 1 single-channel T/R component, and the whole array totally comprises 192T/R components.
The system is mainly characterized by having a coplanar multiband active phased array antenna, having high integration characteristic and smaller volume, adopting a phased array system, being capable of scanning electron beams and finally carrying out target RCS measurement on the basis of tracking and detection. Different wave band radars can acquire different electromagnetic scattering characteristics of the target, the Ku and Ka wave band frequency bands are higher, and the fine shape of the target can be described more accurately; C. the X-band has less signal attenuation caused by the atmospheric environment. Therefore, the invention designs a C/X/Ku/Ka four-band system.
The comprehensive information processing unit controls the system to work in the following working modes according to external instructions:
(1) 360 DEG detection mode for sea/air target
360 ° detection of sea/empty targets is a scanning-while-Tracking (TWS) mode of operation. TWS is the most common mode of operation, meaning searching for new targets while tracking targets that have been detected. In the TWS mode, searching and tracking are bundled together, and the period of a search airspace is the refresh rate of tracking data.
(2) Sea/air target sector/small sector detection mode
A scanning-while-Tracking (TWS) mode of operation was designed for sea/empty target sector/small sector detection. Based on the flexibility of the phased array radar beam scanning, aiming at the discovered key target, the sector/small sector detection mode is beneficial to the confirmation of the position and angle information of the target and the rough measurement of electromagnetic scattering characteristics.
(3) High resolution one-dimensional range profile (HRRP) mode
The high-resolution one-dimensional range profile (HRRP) mode can rapidly obtain a target range-oriented high-resolution image and acquire range-oriented profile and shape structure related information. After the target is found in the scanning mode or the target position is obtained by other means, the beam is directed to the ship target, and the distance pulse compression and the azimuth non-coherent accumulation are completed. Fig. 8 is a high resolution one-dimensional range profile of a different target obtained. The change of the scattering center of the target along with the radar observation distance can be acquired, and the RCS of the target can be acquired or the target identification can be performed through the distribution of the scattering center.
(4) Inverse Synthetic Aperture (ISAR) imaging mode
Inverse Synthetic Aperture (ISAR) imaging mode may complete the ISAR imaging process after the target is found in scan mode, or after target location information is obtained by other means, the beam is directed to the target, and the dwell pulse is accumulated.
(5) Target RCS measurement mode
The target RCS measurement mode can be used for RCS measurement after the target position is determined, or different waveforms such as a point frequency pulse waveform, a frequency stepping pulse waveform, a linear frequency modulation pulse waveform and the like are transmitted according to the requirement setting parameters for RCS measurement.
(6) Ocean and meteorological environment data acquisition mode
And under the conditions of different sea areas and different sea conditions, echo data acquisition is carried out according to the set parameters required for enriching an environment database. Meanwhile, the current weather information can be acquired, and weather echo data can be processed.
(7) External scaling mode
And performing external calibration test modes according to different calibration scenes.
The system has the power-on self-checking, periodic self-checking and maintenance self-checking capabilities, and has the functions of automatic equipment monitoring and fault positioning.
The system has single polarization, dual polarization and quadrupole measurement modes, the electromagnetic scattering characteristics of targets with different polarizations are different, and more target characteristic information can be obtained under the condition of multiple polarizations.
The system has the capabilities of point frequency pulse waveform, frequency step pulse waveform and linear frequency modulation pulse waveform. The instantaneous bandwidth of the signal is greater than 1GHz.
In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The present examples should not be construed as limiting the invention.
Claims (5)
1. The utility model provides a ship-borne multiband coplane high integration phased array radar RCS measurement system which characterized in that: the system comprises a four-band radar unit, a stable platform, a power supply, an antenna housing, a temperature stabilizing unit and a comprehensive information processing unit; wherein:
the four-band radar unit comprises a C-band radar, an X-band radar, a Ku-band radar and a Ka-band radar; the C-band radar, the X-band radar and the Ku-band radar are array surface radars, the three radars are directly arranged on the radiation surface of the four-band radar unit frame, the antenna array surface of the Ka-band radar is arranged on the radiation surface of the four-band radar unit frame, and the comprehensive electronic unit of the Ka-band radar is arranged on the base of the four-band radar unit frame;
the stable platform is provided with a control unit, and the control unit receives and transmits a monitoring signal of the stable platform to control the pose of the stable platform; the control unit is respectively connected with each band radar of the four-band radar unit in a communication way and is used for transmitting monitoring and data signals with each band radar of the four-band radar unit;
the power supply supplies power to the stabilized platform and the control unit of the stabilized platform, and comprises a power interface for supplying power to the shipborne multiband coplanar high-integration phased array radar RCS measurement system from outside;
the four-band radar unit, the stable platform, the temperature stabilizing unit and the power supply are arranged in the antenna housing, and the temperature stabilizing unit is used for controlling the temperature in the antenna housing to keep stable;
the comprehensive information processing unit is used for controlling the working mode of the system and processing radar data; the comprehensive information processing unit is in communication connection with the control unit of the stable platform and is used for bidirectionally transmitting instructions/data and monitoring signals of the stable platform.
2. The on-board multi-band co-planar high-integration phased array radar RCS measurement system of claim 1, wherein: the four-band radar unit is arranged on the stabilizing platform, the stabilizing platform is fixedly arranged at the high position outside the cabin, the four-band radar unit outside the cabin, the stabilizing platform, the temperature stabilizing unit and the power supply are arranged in the antenna housing, and the comprehensive information processing unit is arranged on a standard cabinet in the cabin.
3. The on-board multi-band co-planar high-integration phased array radar RCS measurement system of claim 1, wherein: the four-band radar unit is designed into a single-station full-coherent pulse active phased array system, and a four-band radar unit frame bears C-band radar, X-band radar, ku-band radar and Ka-band radar, and the four-band radar array surfaces are arranged in a coplanar manner, so that a plurality of band radars can work in a coplanar manner at the same time, and the accuracy of RCS multiband measurement of a moving target is guaranteed.
4. The on-board multi-band co-planar high-integration phased array radar RCS measurement system of claim 1, wherein:
the Ka-band radar and the Ku-band radar are distributed on the upper part of the radiation surface of the four-band radar unit frame and far away from the base and the left and right arm-shaped supporting structures; and arranging and installing the radar array surface on the radiating surface of the unit frame in an inward arrangement.
5. The measurement method of the on-board multiband coplanar high-integration phased array radar RCS measurement system according to claim 1, wherein: the comprehensive information processing unit controls the system to work in the following working modes according to external instructions:
(1) 360 DEG detection mode for sea/air target
360-degree detection of the sea/air target is a scanning-while-Tracking (TWS) working mode; searching for a new target while tracking the detected target, wherein the searching and the tracking are really bundled together in a scanning side Tracking (TWS) mode, and the period of a searching airspace is the refresh rate of tracking data;
(2) Sea/air target sector/small sector detection mode
The working mode of tracking TWS while scanning is designed for sea/empty target sector/small sector detection, and a sector/small sector detection mode is adopted for the discovered key target;
(3) High resolution one-dimensional range profile (HRRP) mode
The high-resolution one-dimensional range profile (HRRP) mode can rapidly obtain a target range-oriented high-resolution image and acquire range-oriented profile and shape structure related information; after the target is found in the scanning mode or the target position is obtained by other means, the beam is directed to the ship target, and the distance pulse compression and the azimuth non-coherent accumulation are completed; acquiring the change of a target scattering center along with the radar observation distance, and acquiring a target RCS or carrying out target identification through the distribution of the scattering center;
(4) Inverse Synthetic Aperture (ISAR) imaging mode
An Inverse Synthetic Aperture (ISAR) imaging mode is used for finding a target in a scanning mode or acquiring target position information by other means, then directing a beam to the target, and finishing ISAR imaging processing after resident pulse accumulation;
(5) Target RCS measurement mode
The target RCS measurement mode can be used for RCS measurement after the target position is determined, or different waveforms of a point frequency pulse waveform, a frequency stepping pulse waveform and a linear frequency modulation pulse waveform are transmitted according to the set parameters of requirements to carry out RCS measurement;
(6) Ocean and meteorological environment data acquisition mode
Under the conditions of different sea areas and different sea conditions, echo data acquisition is carried out according to the set parameters required for enriching an environment database, and meanwhile, the current meteorological information can be acquired and meteorological echo data can be processed;
(7) External scaling mode
And performing external calibration test modes according to different calibration scenes.
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| CN116743275A (en) * | 2023-08-08 | 2023-09-12 | 南京新频点电子科技有限公司 | Vehicle-mounted high-mobility radar signal comprehensive simulation device |
| CN116743275B (en) * | 2023-08-08 | 2023-11-24 | 南京新频点电子科技有限公司 | Vehicle-mounted high-mobility radar signal comprehensive simulation device |
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