CN216904869U - X-waveband signal source - Google Patents
X-waveband signal source Download PDFInfo
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- CN216904869U CN216904869U CN202220574264.8U CN202220574264U CN216904869U CN 216904869 U CN216904869 U CN 216904869U CN 202220574264 U CN202220574264 U CN 202220574264U CN 216904869 U CN216904869 U CN 216904869U
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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
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The utility model relates to an X-band signal source, which comprises an X-band signal source main controller, a clock phase-locked loop module, a DDS (direct digital synthesizer) mixing module, a power amplifier attenuation module, a data transmission interface and a power division filtering module, wherein the clock phase-locked loop module is connected with the DDS mixing module; the output end of the clock phase-locked loop module is connected with the input ends of the DDS frequency mixing module and the X-band signal source main controller, the output end of the DDS frequency mixing module is connected with the input end of the power amplifier attenuation module, and the output end of the power amplifier attenuation module is connected with the input ends of the power amplifier filtering module and the X-band signal source main controller; and the X-band signal source main controller is connected with the DDS frequency mixing module and the data transmission interface. According to the utility model, a plurality of modules in the X-band signal source are integrated into one module, so that the overall size is reduced, and the maintenance is easier; the design is only aimed at the X-band radar, the cost is lower compared with the existing full-band radar, and the power is only about 20W when the full-band radar is in a normal operation state, so that the power consumption is greatly saved.
Description
Technical Field
The utility model relates to the technical field of radar signal processing, in particular to an X-band signal source.
Background
In an X-band weather radar random measurement system, an X-band radar signal source is in a crucial position, and currently, a special signal source mode is mostly adopted for a signal source in the X-band weather radar random measurement deployed in China at present, and the special signal sources are divided into old-fashioned signal sources and novel signal sources; the old signal source has the defects of old damage, large volume, low signal precision, high power consumption, unmanned aerial vehicle interaction, inconvenience in intelligentization, portable system integration and the like due to overlong service life, and directly influences the test data quality condition of the X-band weather radar random measurement system; although the novel signal source has the characteristics of multiple functions, high index and intelligent system integration, the required functions are single in the radar measurement process, so that multiple functions are unnecessary, great waste can be caused, the novel signal source is expensive, the equipment is large in size and needs to be placed in a special cabinet, the power consumption of the equipment is high, and the cost of hardware equipment is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, provides an X-waveband signal source and overcomes the defects of the existing old-fashioned signal source and the novel signal source.
The purpose of the utility model is realized by the following technical scheme: an X-band signal source comprises an X-band signal source main controller, a clock phase-locked loop module, a DDS (direct digital synthesizer) mixing module, a power amplifier attenuation module, a data transmission interface and a power division filtering module; the output end of the clock phase-locked loop module is connected with the input ends of the DDS frequency mixing module and the X-band signal source main controller, the output end of the DDS frequency mixing module is connected with the input end of the power amplifier attenuation module, and the output end of the power amplifier attenuation module is connected with the input ends of the power amplifier filtering module and the X-band signal source main controller; and the X-band signal source main controller is connected with the DDS frequency mixing module and the data transmission interface.
The clock phase-locked loop module comprises a first voltage regulating circuit, a first clock circuit, a first communication interface circuit, a frequency division filter circuit, a clock phase-locked loop chip and a local oscillator filter circuit; the output ends of the first voltage regulating circuit and the first clock circuit are connected with the input end of the clock phase-locked loop chip; the output end of the clock phase-locked loop chip is connected with the input ends of the frequency division filter circuit and the local oscillation filter circuit, the clock phase-locked loop chip is connected with the first communication interface circuit, and the first communication interface circuit is connected with the X-waveband signal source main controller.
The DDS frequency mixing module comprises a second voltage regulating circuit, a second clock selection circuit, a second data communication interface circuit, a frequency mixing circuit, a DDS circuit and an intermediate frequency signal filter circuit; the output end of the second voltage regulating circuit is connected with the input ends of the frequency mixing circuit and the DDS circuit, the output end of the second clock selection circuit is connected with the input end of the DDS circuit, the output end of the DDS circuit is connected with the input end of the intermediate frequency signal filter circuit, and the output end of the intermediate frequency signal filter circuit is connected with the input end of the frequency mixing circuit; the DDS circuit is also connected with a second data communication interface circuit, and the second data communication interface circuit is connected with an X-waveband signal source main controller.
The power amplifier attenuation module comprises a third voltage regulating circuit, a power amplifier circuit, a third data communication interface circuit and an attenuation circuit; the output end of the third voltage regulating circuit is connected with the input ends of the power amplifier circuit and the attenuation circuit, the output end of the DDS mixing module is connected with the input end of the power amplifier circuit, and the output end of the power amplifier circuit is connected with the input end of the attenuation circuit; and the third data communication interface circuit is mutually connected with the X-band signal source main controller.
The power division filtering module comprises a fourth voltage regulating circuit, a signal input filtering circuit, a power division circuit and a signal output filtering circuit; the output end of the power amplifier attenuation module is connected with the input end of the signal input filter circuit, the output ends of the fourth voltage regulating circuit and the signal input filter circuit are connected with the input end of the power dividing circuit, and the output end of the power dividing circuit is connected with the input end of the signal output filter circuit.
The utility model has the following advantages: a plurality of modules in the X-band signal source are integrated into one module, so that the overall size is reduced, and the X-band signal source is easier to maintain; the design is only aimed at the X-band radar, the cost is lower compared with the existing full-band radar, and the power is only about 20W when the full-band radar is in a normal operation state, so that the power consumption is greatly saved; when the display is externally connected through the HDMI, a human-computer interaction interface of the signal source equipment can appear on the display. A user can directly operate the signal source equipment through the interface; when the signal source equipment is connected through a network cable, the remote computer operates and controls the signal source equipment through an interface of the upper computer software; the system can simultaneously support communication of an RS232/RS485 interface, a LAN interface and a USB interface, the interface types of the peripheral devices almost cover a plurality of current mainstream communication interfaces, and various devices of a user are supported to carry out dual-computer communication.
Drawings
FIG. 1 is a schematic circuit diagram of the present invention;
FIG. 2 is a circuit diagram of a clock PLL module;
FIG. 3 is a circuit diagram of a DDS mixer module;
fig. 4 is a circuit diagram of a power amplifier attenuation module;
FIG. 5 is a circuit diagram of a power division filter module;
fig. 6 is a circuit diagram of a data transmission interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application provided below in connection with the appended drawings is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application. The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1, an X-band signal source includes an X-band signal source master controller, a clock phase-locked loop module, a DDS mixing module, a power amplifier attenuation module, a data transmission interface, and a power division filtering module; the output end of the clock phase-locked loop module is connected with the input ends of the DDS frequency mixing module and the X-band signal source main controller, the output end of the DDS frequency mixing module is connected with the input end of the power amplifier attenuation module, and the output end of the power amplifier attenuation module is connected with the input ends of the power amplifier filtering module and the X-band signal source main controller; and the X-band signal source main controller is connected with the DDS frequency mixing module and the data transmission interface.
As shown in fig. 2, the clock phase-locked loop module includes a first voltage regulating circuit, a first clock circuit, a first communication interface circuit, a frequency division filter circuit, a clock phase-locked loop chip, and a local oscillation filter circuit; the output ends of the first voltage regulating circuit and the first clock circuit are connected with the input end of the clock phase-locked loop chip; the output end of the clock phase-locked loop chip is connected with the input ends of the frequency division filter circuit and the local oscillation filter circuit, the clock phase-locked loop chip is connected with the first communication interface circuit, and the first communication interface circuit is connected with the X-waveband signal source main controller.
As shown in fig. 3, the DDS frequency mixing module includes a second voltage regulating circuit, a second clock selecting circuit, a second data communication interface circuit, a frequency mixing circuit, a DDS circuit, and an intermediate frequency signal filtering circuit; the output end of the second voltage regulating circuit is connected with the input ends of the mixer circuit and the DDS circuit, the output end of the second clock selection circuit is connected with the input end of the DDS circuit, the output end of the DDS circuit is connected with the input end of the intermediate frequency signal filter circuit, and the output end of the intermediate frequency signal filter circuit is connected with the input end of the mixer circuit; the DDS circuit is also connected with a second data communication interface circuit, and the second data communication interface circuit is connected with an X-waveband signal source main controller.
The DDS circuit adopts a special X-waveband DDS chip, and the mixing circuit adopts a special X-waveband mixing chip, so that the integration level is high, and the stability is strong.
A user can select an external input clock or a radio frequency signal (called an internal clock in a schematic diagram) output by the clock phase-locked loop module as an input clock signal of the DDS circuit, and the X-band signal source master module controls the DDS circuit to output a signal (this signal is referred to as an intermediate frequency signal or an intermediate frequency for short) through the data interface circuit. Then the intermediate frequency signal is injected into the mixing circuit through the local oscillator clock output by the filter circuit and the clock phase-locked loop module, and the mixing circuit outputs an X-band signal through an internal algorithm of a chip of the mixing circuit.
The DDS mixing module outputs X-band signals with low power, the power is amplified by the power amplifier circuit, and then the signals are continuously output to the attenuation circuit. The main controller sends out control commands to the attenuation circuit through the data communication interface circuit, and the attenuation circuit outputs X wave band signals with corresponding power.
As shown in fig. 4, the power amplifier attenuation module includes a third voltage regulating circuit, a power amplifier circuit, a third data communication interface circuit and an attenuation circuit; the output end of the third voltage regulating circuit is connected with the input ends of the power amplifier circuit and the attenuation circuit, the output end of the DDS mixing module is connected with the input end of the power amplifier circuit, and the output end of the power amplifier circuit is connected with the input end of the attenuation circuit; and the third data communication interface circuit is connected with the X-waveband signal source main controller.
The DDS frequency mixing module outputs X-band signals with low power, the power is amplified by the power amplification circuit, and then the signals are continuously output to the attenuation circuit. The main controller sends out control commands to the attenuation circuit through the data communication interface circuit, and the attenuation circuit outputs X wave band signals with corresponding power.
As shown in fig. 5, the power dividing and filtering module includes a fourth voltage regulating circuit, a signal input filtering circuit, a power dividing circuit, and a signal output filtering circuit; the output end of the power amplifier attenuation module is connected with the input end of the signal input filter circuit, the output ends of the fourth voltage regulating circuit and the signal input filter circuit are connected with the input end of the power dividing circuit, and the output end of the power dividing circuit is connected with the input end of the signal output filter circuit.
As shown in fig. 6, the data transmission interface portion mainly comprises an RS232/RS485 interface, an HDMI interface, a LAN interface, and a USB interface; one end of each interface is connected with the X-band signal source main controller, and the other end of each interface is connected with corresponding external equipment.
The working process of the utility model is as follows: the user opens the remote control software, a group of commands containing signal frequency and power are sent to the X-waveband signal source main controller through the data transmission interface, the X-waveband signal source main controller receives and processes the commands and then sends corresponding control commands to the DDS mixing module and the power amplifier attenuation module respectively, the DDS mixing module receives the control commands and outputs corresponding frequency signals according to the command information, the power amplifier attenuation module receives the control commands and outputs the X-waveband signals output by the DDS mixing module at the moment after power amplification and attenuation operations, corresponding power signals are output, and then two paths of same X-waveband radio-frequency signals (the signals are the X-waveband signals required by the user) are output through the power division filtering module.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the utility model is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (5)
1. An X-band signal source, comprising: the digital signal processing device comprises an X-band signal source main controller, a clock phase-locked loop module, a DDS frequency mixing module, a power amplifier attenuation module, a data transmission interface and a power division filtering module; the output end of the clock phase-locked loop module is connected with the input ends of the DDS frequency mixing module and the X-band signal source main controller, the output end of the DDS frequency mixing module is connected with the input end of the power amplifier attenuation module, and the output end of the power amplifier attenuation module is connected with the input ends of the power amplifier filtering module and the X-band signal source main controller; and the X-band signal source main controller is connected with the DDS frequency mixing module and the data transmission interface.
2. The X-band signal source of claim 1, wherein: the clock phase-locked loop module comprises a first voltage regulating circuit, a first clock circuit, a first communication interface circuit, a frequency division filter circuit, a clock phase-locked loop chip and a local oscillator filter circuit; the output ends of the first voltage regulating circuit and the first clock circuit are connected with the input end of the clock phase-locked loop chip; the output end of the clock phase-locked loop chip is connected with the input ends of the frequency division filter circuit and the local oscillation filter circuit, the clock phase-locked loop chip is connected with the first communication interface circuit, and the first communication interface circuit is connected with the X-waveband signal source main controller.
3. The X-band signal source of claim 1, wherein: the DDS frequency mixing module comprises a second voltage regulating circuit, a second clock selection circuit, a second data communication interface circuit, a frequency mixing circuit, a DDS circuit and an intermediate frequency signal filter circuit; the output end of the second voltage regulating circuit is connected with the input ends of the frequency mixing circuit and the DDS circuit, the output end of the second clock selection circuit is connected with the input end of the DDS circuit, the output end of the DDS circuit is connected with the input end of the intermediate frequency signal filter circuit, and the output end of the intermediate frequency signal filter circuit is connected with the input end of the frequency mixing circuit; the DDS circuit is also connected with a second data communication interface circuit, and the second data communication interface circuit is connected with an X-waveband signal source main controller.
4. The X-band signal source of claim 1, wherein: the power amplifier attenuation module comprises a third voltage regulating circuit, a power amplifier circuit, a third data communication interface circuit and an attenuation circuit; the output end of the third voltage regulating circuit is connected with the input ends of the power amplifier circuit and the attenuation circuit, the output end of the DDS mixing module is connected with the input end of the power amplifier circuit, and the output end of the power amplifier circuit is connected with the input end of the attenuation circuit; and the third data communication interface circuit is mutually connected with the X-band signal source main controller.
5. The X-band signal source of claim 1, wherein: the power division filtering module comprises a fourth voltage regulating circuit, a signal input filtering circuit, a power division circuit and a signal output filtering circuit; the output end of the power amplifier attenuation module is connected with the input end of the signal input filter circuit, the output ends of the fourth voltage regulating circuit and the signal input filter circuit are connected with the input end of the power dividing circuit, and the output end of the power dividing circuit is connected with the input end of the signal output filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220574264.8U CN216904869U (en) | 2022-03-16 | 2022-03-16 | X-waveband signal source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220574264.8U CN216904869U (en) | 2022-03-16 | 2022-03-16 | X-waveband signal source |
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| Publication Number | Publication Date |
|---|---|
| CN216904869U true CN216904869U (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220574264.8U Active CN216904869U (en) | 2022-03-16 | 2022-03-16 | X-waveband signal source |
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| CN (1) | CN216904869U (en) |
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- 2022-03-16 CN CN202220574264.8U patent/CN216904869U/en active Active
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Effective date of registration: 20221207 Address after: T2-7 # - 1-101, Liandong U Valley Tianfu International Emerging Technology Complex, No. 666, Jingong East 1st Road, Xinxing Street, Tianfu New District, Chengdu, 610000, Sichuan Patentee after: InnoMicro (Chengdu) Electronics Co.,Ltd. Address before: Room 219 and 419, building B, Gaofa building, No.6 Jiuxing Avenue, high tech Zone, Chengdu, Sichuan 610041 Patentee before: CHENGDU YUANWANG TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20240408 Address after: Room 201-2, 2nd Floor, Building 9, No. 166 Wuxing Fourth Road, Wuhou District, Chengdu City, Sichuan Province, 610000 Patentee after: Chengdu Yuanwang Leixin Electronic Technology Co.,Ltd. Country or region after: China Address before: T2-7 # - 1-101, Liandong U Valley Tianfu International Emerging Technology Complex, No. 666, Jingong East 1st Road, Xinxing Street, Tianfu New District, Chengdu, 610000, Sichuan Patentee before: InnoMicro (Chengdu) Electronics Co.,Ltd. Country or region before: China |