CN220040992U - Multi-band multi-mode radar remote control integrated signal source - Google Patents
Multi-band multi-mode radar remote control integrated signal source Download PDFInfo
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- CN220040992U CN220040992U CN202321059581.7U CN202321059581U CN220040992U CN 220040992 U CN220040992 U CN 220040992U CN 202321059581 U CN202321059581 U CN 202321059581U CN 220040992 U CN220040992 U CN 220040992U
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Abstract
The utility model relates to a multiband multimode radar remote control integrated signal source, and belongs to the technical field of radar product control and debugging test. The multiband multimode radar remote control integrated signal source comprises an external control module, a power supply module, a reference control module, a complex signal generation module, a local oscillation signal generation module and a transmission excitation signal generation module; the power supply module supplies power to each component, and the reference control module receives a control command sent from the outside, sets corresponding control commands such as working frequency, signal form and the like and sends the control commands to various signal generating sources. According to different working modes, frequency signals with different frequency bands and different forms are selected and output for detection of a radar master station and a subsystem. The utility model combines the related functions of a plurality of signal sources, function generators and other instruments, saves instrument resources and reduces debugging cost.
Description
Technical Field
The utility model relates to a multiband multimode radar remote control integrated signal source and a device, belonging to the technical field of radar product control and debugging test.
Background
In modern radars, signal sources are indispensable instruments in frequency synthesis, receivers, TR modules, signal processor alike systems, radar total station debugging and outfield testing. Aiming at different products and different application scenes, the requirements on the frequency band, power, output channel, signal form and the like of the signal source are different, and the development of an integrated signal source with multiple wave bands and multiple modes and certain universality is a problem to be solved.
The signal source is used as an important instrument for modulating and measuring a radar subsystem and a main station, and is mainly used for generating frequency signals for modulating and measuring transmitting excitation signals and local oscillation signals, detecting and receiving channels, radar system target simulation, radar system photoelectric axis calibration and the like. At present, the signal sources mostly adopt meters, and a plurality of meters are needed to be built in consideration of the channel, the frequency band, the power and the signal form of the signal sources required by different system tests, and particularly, the transportation and the operation are extremely inconvenient in the field test. In summary, the signal source meters currently employed have the following drawbacks: 1. the instrument needs more, the debugging cost is high; 2. the setting steps are more, and the debugging efficiency is low; 3. and in the field test, the carrying and the transportation are inconvenient.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows:
aiming at the defects and defects of the existing debugging test adopting various signal source instruments, the utility model provides a multiband multimode radar remote control integrated signal source and device for outputting multiband multimode signals.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the multi-band multi-mode radar remote control integrated signal source is characterized by comprising an external control module, a power supply module, a reference control module, a complex signal generation module, a local oscillation signal generation module and a transmission excitation signal generation module;
the external control module inputs a control instruction to the reference control module;
the power supply module supplies power to each module;
the reference control module receives the control command sent by the external control module, sets the corresponding control command and sends the control command to the complex signal generating source, the local oscillation signal generating source and the emission excitation signal generating source; the control instruction comprises a working frequency point, a signal form, a pulse width, a frequency modulation slope and a receiver gain;
the complex signal generating source generates point frequency continuous wave, linear frequency modulation and nonlinear frequency modulation signals according to the control command;
the local oscillation signal generation module generates S/C/X/Ku band local oscillation signals according to the control command;
the emission excitation signal generating source generates S-Ka wave band emission excitation signals by adopting a mixed frequency synthesis mode according to the control command.
The utility model further adopts the technical scheme that: the external control module comprises a wireless tablet or a computer.
The utility model further adopts the technical scheme that: the reference control module comprises a crystal oscillator, an amplifier, a frequency multiplier, a power divider and a control board.
The utility model further adopts the technical scheme that: the complex signal generating module adopts a DDS+FPGA scheme to output point frequency continuous wave, linear frequency modulation and nonlinear frequency modulation signals.
The utility model further adopts the technical scheme that: the local oscillator signal generating module comprises a plurality of phase-locked loops (PLL), a plurality of filters, a plurality of amplifiers, a point frequency source (PLS) and a Direct Digital Synthesis (DDS), wherein one phase-locked loop (PLS) and the filters and the amplifiers generate a first local oscillator signal, the other phase-locked loop (PLL) and the filters and the amplifiers generate a second local oscillator signal, the other phase-locked loop (PLL) and the filters and the amplifiers generate a third local oscillator signal, and the point frequency source (PLS) and the DDS are mixed to form a fourth local oscillator signal.
The utility model further adopts the technical scheme that: the transmitting excitation signal generating module comprises a phase-locked loop PLL, a plurality of filters, a plurality of amplifiers, a point frequency source PLS, a DDS and a switch filtering component, wherein a fourth local oscillation signal is mixed with a third local oscillation signal after passing through the filters and the amplifiers, and the mixed signals are input into the switch filtering component for frequency band selection and then output through the amplifiers.
The multi-band multi-mode radar remote control integrated signal source device is characterized by comprising a case, a motherboard, a front panel and a multi-band multi-mode radar remote control integrated signal source; the multi-band multi-mode radar remote control integrated signal source is characterized in that the motherboard is arranged in the chassis, each module of the multi-band multi-mode radar remote control integrated signal source is arranged in the chassis and connected with the motherboard, a special interface for transmitting control signals and power signals is arranged on the motherboard, and each module carries out mutual transmission on the motherboard; the front panel is provided with a power input interface, a power switch, a control interface, a fault indication and a radio frequency interface, wherein the power switch is used for controlling the power to be connected and disconnected, the control interface can be expanded to be connected with a control simulator in a wired manner to complete the control of the output signals of the integrated signal source, and the fault indication can intuitively display the working states of all modules; the radio frequency interface comprises a transmission of radio frequency signals between modules and an external output interface.
The utility model further adopts the technical scheme that: the chassis is internally provided with a guide rail device which is used for inserting each module of the multiband multimode radar remote control integrated signal source at a corresponding position.
The utility model further adopts the technical scheme that: the novel multifunctional portable computer is characterized by further comprising computer case handles positioned on two sides of the computer case.
The utility model further adopts the technical scheme that: the novel multifunctional electric cabinet is characterized by further comprising cabinet pad feet positioned at the bottom of the cabinet.
The utility model has the beneficial effects that:
the multiband multimode radar remote control integrated signal source and the device provided by the utility model have the beneficial effects that compared with the prior art, the multiband multimode radar remote control integrated signal source and the device have the following advantages:
1. related functions of a plurality of signal sources, function generators and other instruments are integrated, instrument resources are saved, and debugging cost is reduced;
2. the flat wireless control is adopted, the setting is simple, the control is convenient and fast, and the debugging efficiency is high;
3. the control interface is provided with a display area which can display the working state in real time;
4. the integrated chassis design is adopted, the external interface design is universal, the portable external field test system is convenient to carry, and the problem of transportation test of an external field is solved;
5. the method has the general performance of easy upgrading and transformation, and is suitable for various radar products.
6. The backup module is arranged, so that the backup module can be replaced when a certain module fails.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the utility model, like reference numerals being used to refer to like parts throughout the several views.
FIG. 1 is a block diagram of a multi-band, multi-mode radar remote control integrated signal source;
FIG. 2 is a schematic block diagram of a multi-band, multi-mode radar remote control integrated signal source;
FIG. 3 is a schematic diagram of a wireless control interface;
FIG. 4 is a block diagram of a multi-band, multi-mode radar remote control integrated signal source device;
FIG. 5 is a schematic diagram of a multi-band, multi-mode radar remote control integrated signal source device;
in fig. 5: the device comprises a 1-chassis handle, a 2-power switch, a 3-control interface, a 4-local oscillator generating module, a 5-fault indicator lamp, a 6-chassis pad, a 7-amplification output module, an 8-chassis, a 9-backup module, a 10-switch gating module, an 11-emission excitation generating module, a 12-complex signal generating module, a 13-reference control module, a 14-power module and a 15-power interface.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. 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 utility model. In addition, technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
The embodiment of the utility model provides a multiband multimode radar remote control integrated signal source, which comprises the following parts: 1. signal source integrated design; 2. an integrated signal source multiband multimode expansibility design; 3. and (5) designing convenience of an integrated signal source control function.
1. Signal source integrated design
The radar signal source and function generator instrument function are integrated, and the radar application frequency band and the signal form are classified, so that the radar signal source and function generator instrument function radar signal source device comprises six modules, namely an external control module, a power module, a reference control module, a complex signal generation source, a local oscillation signal generation source and a transmission excitation signal generation source, as shown in figure 1.
The power supply module supplies power to each component, and the reference control module receives a control command sent from the outside, sets corresponding control commands such as working frequency, signal form and the like and sends the control commands to various signal generating sources. According to different working modes (determined according to the applicable radar model), frequency signals with different frequency bands and different forms are selected and output for detection of a radar master station and a subsystem.
According to the realization function division module, set up standard structure, confirm module quantity according to actual demand, integrate through integral type standardization machine case, portable.
2. Integrated signal source multiband multimode expansibility design
The working frequency range, the output power range, the synthesis mode and the like of the signal source are determined by sorting and classifying the output frequency band, the signal form, the output power, the frequency step, the frequency point number, the output channel and the like of frequency signals required by various radar products and considering the factors such as development cost, period and the like.
The embodiment adopts a mixed frequency synthesis mode to realize the design of a multi-band (L, S, ku, ka), multi-mode and multi-channel millimeter wave signal source.
The functional block diagram is shown in fig. 2. In the embodiment, a crystal oscillator with high stability and low phase noise of XXMHz is used as a frequency reference of a signal source, and an L-band complex signal, an S/C/X/Ku-band local oscillation signal, an S-Ka-band emission excitation signal and a required frequency signal are sequentially generated through circuits such as amplification, power division, frequency multiplication, frequency division, filtering, frequency mixing, DDS, phase-locked loop and the like.
The reference control module generates a multipath frequency reference signal with high stability, and the control circuit sets control commands and parameters such as a working frequency point, a signal form, pulse width, frequency modulation slope, receiver gain and the like of a signal source.
The complex signal generating module can generate complex signals such as point frequency continuous wave, linear frequency modulation, nonlinear frequency modulation and the like; the local oscillation signal generating module and the excitation signal generating module can generate microwave signals of multiple paths of S to Ka wave bands in a mixed frequency synthesis mode. The frequency band, the step, the power, the channel number and the like of the signal source can be expanded by adding the functional module so as to meet the use requirements of other radars.
Specifically: the reference control module comprises a crystal oscillator, an amplifier, a frequency multiplier, a power divider and a control board; the complex signal generating module adopts a DDS+FPGA scheme to output point frequency continuous wave, linear frequency modulation and nonlinear frequency modulation signals; the local oscillator signal generating module comprises a plurality of phase-locked loops (PLL), a plurality of filters, a plurality of amplifiers, a point frequency source (PLS) and a Direct Digital Synthesis (DDS), wherein one phase-locked loop (PLS) and the filters and the amplifiers generate a first local oscillator signal, the other phase-locked loop (PLL) and the filters and the amplifiers generate a second local oscillator signal, the other phase-locked loop (PLL) and the filters and the amplifiers generate a third local oscillator signal, and the point frequency source (PLS) and the DDS are mixed to form a fourth local oscillator signal; the transmitting excitation signal generating module comprises a phase-locked loop PLL, a plurality of filters, a plurality of amplifiers, a point frequency source PLS, a DDS and a switch filtering component, wherein a fourth local oscillation signal is mixed with a third local oscillation signal after passing through the filters and the amplifiers, and the mixed signals are input into the switch filtering component for frequency band selection and then output through the amplifiers.
3. Integrated signal source control function convenience design
Considering the setting of the signal source, especially the control under the external field environment, the remote control function is developed. The embodiment adopts a flat-panel wireless WIFI control technology to remotely set signal waveforms (continuous wave, linear frequency modulation, nonlinear frequency modulation, phase coding), frequency, amplitude, acting distance and the like, so as to finish the generation of microwave signals required by radar debugging, and a flat-panel control setting interface is shown in fig. 3.
The embodiment of the utility model also provides a multiband multimode radar remote control integrated signal source device which comprises a case, a motherboard, a front panel, a power module, a reference control module, a complex signal generation module, a local oscillation signal generation module, an excitation signal generation module, external control, fault indication, control keys and interfaces (comprising a radio frequency interface and a power control interface). Wherein the motherboard is arranged in the chassis, each module is connected with the motherboard by adopting a pluggable loading chassis, and all the radio frequency input/output interfaces are arranged on the front panel of the module. The external control adopts a wireless control panel, and fixed installation is not needed. And controlling the integrated signal source to output corresponding signals through the touch screen setting command, and displaying the work mode in real time.
The implementation mode of the multiband multimode radar remote control integrated signal source is as follows: the reference control module is integrated with a reference signal generating module, an input signal driving module, a signal processing module, a serial port communication module and an output signal driving module; the input command of the wireless tablet or the computer is received and is output to other modules after being processed, so that the output frequency band, the frequency point, the signal form and the power amplitude are determined. The complex signal generating module adopts a DDS+FPGA scheme, and can generate complex signals such as linear frequency modulation, nonlinear frequency modulation and the like; the local oscillation signal generation module and the excitation signal generation module can generate a plurality of paths of microwave signals from S to Ka wave bands by adopting a mixed frequency synthesis mode and output the microwave signals to the panel radio frequency interface; the power supply module is used for supplying power to each module. The signal source replaces a plurality of instruments such as signal sources, function generators, oscilloscopes and the like in the debugging of the radar main station, and instrument resources are saved. Integrating these meter functions into one chassis also significantly improves the portability and security of the debugging device.
The multi-band multi-mode radar remote control integrated signal source device is schematically shown in fig. 5.
The realization of the panel and the interface thereof is as follows: the multi-band multi-mode radar remote control integrated signal source is characterized in that each module rear plate is arranged on a motherboard, a special interface is arranged, and comprises control signals and power signals, and the control signals and the power signals are mutually transmitted through the motherboard; the front panel is provided with a power input interface, a power switch, a control interface, a fault indication and a radio frequency interface. The power switch is used for controlling the power supply to be connected and disconnected. The control interface can be expanded to be used for controlling the simulator through wired connection, and control of the output signals of the integrated signal source is completed. The fault indication can intuitively display the working state of each module. The radio frequency interface comprises a transmission of radio frequency signals between modules and an external output interface. The interfaces of the panels are all universal standard interfaces and can be used for a plurality of products and systems.
The multiband multimode radar remote control integrated signal source, remote control implementation lies in: through the flat wireless WIFI control technology, signal waveforms (continuous wave, linear frequency modulation, nonlinear frequency modulation and phase coding), frequencies, amplitudes and acting distances are set by one key according to different application scenes, a reference control module of an integrated signal source receives corresponding control commands, and the input signals are driven and correspondingly processed to output required analog signals, so that a remote control function is realized, and the working state is displayed in real time. When in outfield test, the functional practicability is strong, the integrated signal source is connected and then placed indoors, and the signal source can be remotely controlled in a product vehicle or other places through a wireless flat plate. The debugging operation on the product car can be completed by one person, remote control operation and data recording of a signal source can be performed, so that the control is convenient and fast, and the working efficiency is greatly improved.
The multiband multimode radar remote control integrated signal source device is easy to upgrade and expand, and is implemented in that: the signal source is in consideration of the control and convenience performance, the realization mode and the structural appearance form of the control function, and the universal performance and the easy upgrading and reconstruction of various radar products are also in consideration on the basis of meeting the requirements of users.
The integrated standard chassis is integrated according to the function division module, is convenient to carry, adopts a wireless control technology, and is easy to control. In addition, the frequency band, the step, the power, the channel number and the like of the signal source can be expanded by adding the functional module so as to meet the use requirements of other radars. The complex signal output frequency and signal form can be selected or expanded according to control. The signal source mixes the local oscillation signal and the complex signal, the frequency band and the power control module required by 6-channel switch filtering gating are accurately adjusted according to the use requirement, and finally the frequency signal of the multi-frequency band and multi-mode multi-channel with adjustable frequency band and power amplitude is generated. That is, the signal source can expand frequency bands, channels, signal forms and the like by adding modules. The method can be used for multiple application scenes of multiple radar products, and is high in universality.
The realization of the multi-band multi-mode radar remote control integrated signal source device and the case thereof is that: the chassis has three parts, a chassis main body, a chassis handle and chassis pad feet. The case body is provided with a guide rail device for inserting each module at a corresponding position; the case handle is arranged at the side part of the case; the chassis foot pad is arranged at the lower part of the chassis and is used for supporting the chassis to have a certain safety distance from the working surface.
The multiband multimode radar remote control integrated signal source device is used in the following modes: placing the signal source in a horizontal plane; inserting a power line into the power input interface, and connecting the power supply, so as to ensure that the power switch is in a closed state; connecting a radio frequency interface with an SMA socket corresponding to a product to be tested through a radio frequency cable, and setting a wireless flat plate according to a working state and a control command; opening a panel power switch; the control can be completed by clicking the sending command, fault indication is set by each module of the signal source, and the working state of the test product is displayed on the panel in real time, so that the control is very visual. The integrated signal source has more output frequency bands, signal forms and output channels, so that a plurality of instrument resources can be saved; the control is convenient, and the test efficiency is high; the portable external field test device is convenient to carry, and can solve the problem of high external field test difficulty.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made without departing from the spirit and scope of the utility model.
Claims (6)
1. The multi-band multi-mode radar remote control integrated signal source is characterized by comprising an external control module, a power supply module, a reference control module, a complex signal generation module, a local oscillation signal generation module and a transmission excitation signal generation module;
the external control module inputs a control instruction to the reference control module;
the power supply module supplies power to each module;
the reference control module receives the control command sent by the external control module, sets the corresponding control command and sends the control command to the complex signal generating source, the local oscillation signal generating source and the emission excitation signal generating source; the control instruction comprises a working frequency point, a signal form, a pulse width, a frequency modulation slope and a receiver gain;
the complex signal generating source generates point frequency continuous wave, linear frequency modulation and nonlinear frequency modulation signals according to the control command;
the local oscillation signal generation module generates S/C/X/Ku band local oscillation signals according to the control command;
the emission excitation signal generating source generates S-Ka wave band emission excitation signals by adopting a mixed frequency synthesis mode according to the control command.
2. The multi-band, multi-mode radar remote control integrated signal source of claim 1, wherein: the external control module comprises a wireless tablet or a computer.
3. The multi-band, multi-mode radar remote control integrated signal source of claim 1, wherein: the reference control module comprises a crystal oscillator, an amplifier, a frequency multiplier, a power divider and a control board.
4. The multi-band, multi-mode radar remote control integrated signal source of claim 1, wherein: the complex signal generating module adopts a DDS+FPGA scheme to output point frequency continuous wave, linear frequency modulation and nonlinear frequency modulation signals.
5. The multi-band, multi-mode radar remote control integrated signal source of claim 1, wherein: the local oscillator signal generating module comprises a plurality of phase-locked loops (PLL), a plurality of filters, a plurality of amplifiers, a point frequency source (PLS) and a Direct Digital Synthesis (DDS), wherein one phase-locked loop (PLS) and the filters and the amplifiers generate a first local oscillator signal, the other phase-locked loop (PLL) and the filters and the amplifiers generate a second local oscillator signal, the other phase-locked loop (PLL) and the filters and the amplifiers generate a third local oscillator signal, and the point frequency source (PLS) and the DDS are mixed to form a fourth local oscillator signal.
6. The multi-band, multi-mode radar remote control integrated signal source of claim 1, wherein: the transmitting excitation signal generating module comprises a phase-locked loop PLL, a plurality of filters, a plurality of amplifiers, a point frequency source PLS, a DDS and a switch filtering component, wherein a fourth local oscillation signal is mixed with a third local oscillation signal after passing through the filters and the amplifiers, and the mixed signals are input into the switch filtering component for frequency band selection and then output through the amplifiers.
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