CN114640363A

CN114640363A - Engine auxiliary spectrum data acquisition device

Info

Publication number: CN114640363A
Application number: CN202111532016.3A
Authority: CN
Inventors: 刘乾; 周晓雄; 刘洋
Original assignee: Beijing Institute of Remote Sensing Equipment
Current assignee: Beijing Institute of Remote Sensing Equipment
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-06-17
Anticipated expiration: 2041-12-14
Also published as: CN114640363B

Abstract

The invention discloses an engine auxiliary spectrum data acquisition device. This engine auxiliary spectrum data acquisition device includes: a transceiver system and a storage system; the multi-channel data acquisition device comprises a receiving and transmitting system, a multi-channel data acquisition device, a multi-channel data storage device, a multi-channel data acquisition device and a multi-channel data storage device, wherein the multi-channel receiving device is arranged in the receiving and transmitting system, so that multi-quadrant signals can be independently received, convenience in receiving engine auxiliary spectrum data is improved, the multi-channel data acquisition device and the multi-channel data storage device are arranged in the storage system, simultaneous acquisition of a plurality of channel data can be realized, and further storage bandwidth is improved.

Description

Engine auxiliary spectrum data acquisition device

Technical Field

The invention relates to the technical field of data acquisition, in particular to an engine auxiliary spectrum data acquisition device.

Background

When the airplane flies, the high-speed rotating compressor rotor of the aircraft engine can carry out amplitude modulation and phase modulation on an echo signal of the active seeker, and the modulation effect can cause an engine secondary spectrum to appear on a frequency domain of the signal received by the active seeker. The engine auxiliary spectrum belongs to the research content of the target characteristics of the seeker.

Through years of research, the seeker target characteristic (RCS) has a mature engineering practical calculation method which is calculated theoretically according to the target outline size, and a comprehensive target RCS omnidirectional test method and test data. The engine auxiliary spectrum is a special target characteristic, and is related to factors such as the position, the shape and the size of an air inlet of an engine, the size and the shape of an air inlet pipe, the shape, the number and the size of blades of a compressor rotor, the rotating speed of the compressor rotor and the like, and due to numerous related factors, a practical calculation model which can be applied to engineering is not available at present. At present, the engine side spectrum is mainly researched through experiment to obtain data.

Because a plurality of units need to be coordinated for carrying out the engine auxiliary spectrum acquisition test, the coordination is difficult, the test system is complex to build, the test steps are complicated, the test system is usually temporarily built by each project group and is automatically organized for testing, and the recorded data are very limited. And due to the heterogeneity of the test system, the collected test data is difficult to share in each project group. With the rapid increase of the requirements on the research on the target characteristics of large multi-aircraft such as air refueling machines, air early warning command machines, strategic bombers, large-scale transport planes and the like in recent years, the acquisition of a large amount of engine auxiliary spectrum test data in an all-around and multi-rotating speed is required, and an engine auxiliary spectrum acquisition system which is convenient to construct and simple to operate is urgently required.

With the development of a new generation of air defense weapons, the demand for researching the target characteristics of large aircrafts such as air refueling machines, air early warning commanding machines, strategic bombers, large transporters and the like is increased. As a special target characteristic, the engine auxiliary spectrum needs to acquire a large amount of engine auxiliary spectrum test data in an all-around and multi-rotating speed mode. Because the acquisition of the auxiliary spectrum of the engine is complicated in test organization, a test system is usually constructed by each project group and the test is organized. The test method has two problems, namely, different functions of each project, different frequency conversion links and different sampling rates, the capacity of matched storage equipment is limited, the collected data formats are different, and even the sampling rate is reduced by being limited by the storage rate, so that data loss is caused.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides an engine auxiliary spectrum data acquisition device.

In order to achieve the purpose, the invention provides the following scheme:

an engine secondary spectrum data acquisition device comprises: a transceiving system and a storage system;

the transceiving system comprises a multi-channel receiver;

the storage system comprises a multi-channel data acquisition unit and a data storage;

the multichannel receiver is connected with the multichannel data acquisition unit; the multi-channel data acquisition unit is connected with the data storage.

Preferably, the transceiver system further includes: the device comprises a feed source, a transmitter, a transmitting antenna and a receiving antenna;

the feed source is respectively connected with the transmitter, the multi-channel receiver and the multi-channel data collector; the transmitter is connected with the transmitting antenna; the receiving antenna is connected with the multichannel receiver.

Preferably, the multi-channel receiver comprises a plurality of receive channels; each of the receiving channels includes: the low-noise amplifier comprises a gating switch, a low-noise amplifier, a first mixer, a first filter, a second mixer, a second filter, an attenuator, a first amplifier, a power divider, a third mixer, a narrow-band filter, a broadband filter, a second amplifier and a third amplifier;

the gating switch is respectively connected with the receiving antenna and the low-noise amplifier; the low noise amplifier is connected with the first mixer; the first mixer is respectively connected with the first filter and the feed source; the first filter is connected with the second mixer; the second mixer is respectively connected with the second filter and the feed source; the second filter is connected with the attenuator; the first amplifier is respectively connected with the attenuator and the power divider; the power divider is respectively connected with the third mixer and the broadband filter; the third mixer is respectively connected with the feed source and the narrow-band filter; the narrow-band filter is connected with the second amplifier; the broadband filter is connected with the third amplifier; and the second amplifier and the third amplifier are both connected with the multi-channel data acquisition unit.

Preferably, the multi-channel data collector comprises an FPGA, a first DDR4 memory, a second DDR4 memory, a first Raid card, a plurality of solid discs and a plurality of collecting channels;

the plurality of acquisition channels are connected with the FPGA; the FPGA is respectively connected with the first DDR4 memory and the second DDR4 memory; the first DDR4 internal memory and the second DDR4 internal memory are connected with the first Raid card; the first Raid card is connected with the plurality of solid discs respectively, and the first Raid card is further connected with the data storage through an optical fiber.

Preferably, the data storage comprises a second Raid card and a plurality of hard disks;

the second Raid card is connected with the first Raid card through optical fibers, and the second Raid card is connected with the plurality of hard disks respectively.

Preferably, the memory frequency of the first DDR4 memory and the memory frequency of the second DDR4 memory are 2400 MHz; the timing sequence of the first DDR4 memory and the second DDR4 memory are CL-16-16-16-39.

Preferably, the wave absorbing plate is further included; the wave-absorbing plate forms a first cavity for accommodating the transmitting antenna and a second cavity for accommodating the receiving antenna.

Preferably, the receiving antenna is a planar slot array antenna.

Preferably, the transmitting antenna is a lens antenna.

Preferably, the feed comprises: the frequency multiplier comprises a crystal oscillator, a first power divider, a first frequency multiplier, a second frequency multiplier, a third frequency multiplier, a second power divider, a third power divider, a fourth frequency mixer, a fifth frequency mixer, a first DDS (direct digital synthesizer), a second DDS (direct digital synthesizer) and a fourth amplifier;

the crystal oscillator is connected with the first power divider; the first power divider is respectively connected with the multi-channel data collector, the first amplifier, the third frequency multiplier, the second frequency multiplier and the first frequency multiplier; the first frequency multiplier is connected with the second power divider; the second power divider is respectively connected with the first mixer and the fourth mixer; the fourth mixer is connected with the fourth amplifier; the fourth amplifier is connected with the transmitter; the second frequency multiplier is connected with the third power divider; the third power divider is respectively connected with the first DDS and the second mixer; the first DDS is connected with the fifth mixer; the fifth mixer is connected with the fourth mixer; the frequency tripler is connected with the second DDS; the second DDS is connected with the fifth mixer.

According to the specific embodiment provided by the invention, the invention discloses the following technical effects:

the invention provides an engine auxiliary spectrum data acquisition device, which comprises: a transceiver system and a storage system; the multi-channel data acquisition device and the data storage device are arranged in the storage system, so that the simultaneous acquisition of a plurality of channel data can be realized, and the storage rate is further improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated in the accompanying drawings, which correspond to the accompanying drawings and not in a limiting sense, in which elements having the same reference numeral designations represent like elements, and in which:

FIG. 1 is a schematic structural diagram of an engine secondary spectrum data acquisition device provided by the invention;

fig. 2 is a schematic structural diagram of a transceiver system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a storage system according to an embodiment of the present invention.

Description of reference numerals:

the system comprises a transmitting antenna 1, a receiving antenna 2, a spectrum analyzer 3, a multi-channel data collector 4, a data memory 5, a transmitter 6, a multi-channel receiver 7, a feed source 8, a wave absorption plate 9, a receiving and transmitting system 10 and a storage system 11.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

As shown in fig. 1, the present invention provides an engine secondary spectrum data acquisition device, including: a transceiver system 10 and a storage system 11.

The transceiving system 10 comprises a multi-channel receiver 7. The storage system 11 comprises a multi-channel data collector 4 and a data storage 5.

The multi-channel receiver 7 is connected with the multi-channel data collector 4. The multi-channel data collector 4 is connected with a data memory 5. For example, the multi-channel data collector 4 can perform large data volume data migration with the data storage 5 through an optical fiber. The multi-channel data collector 4 can perform parallel sampling on a plurality of receiving channels and realize high-speed data storage. The data storage 5 realizes safe storage of large-data-volume collected data.

Through set up multichannel receiver 7 in receiving and dispatching system 10, can realize independently receiving the signal of multi-quadrant to improve the convenience that the vice spectral data of engine received, through set up multichannel data collection station 4 and data memory 5 in storage system 11, can realize gathering simultaneously to a plurality of channel data, and then improve the storage bandwidth.

Further, in order to improve the convenience of data reception of the whole device, the transceiver system 10 adopted in the present invention may further include: feed 8, transmitter 6, transmit antenna 1 and receive antenna 2.

The feed source 8 is respectively connected with the transmitter 6, the multi-channel receiver 7 and the multi-channel data collector 4. The transmitter 6 is connected to the transmitting antenna 1. The receiving antenna 2 is connected to a multichannel receiver 7. The frequency source may provide a reference frequency and a transmit excitation signal for the multi-channel data collector 4, the transmitter 6 and the multi-channel receiver 7. The transmitter 6 can be a solid-state transmitter 6, the transmission power control under the saturation gain is realized by controlling the number of each stage of power amplifiers, and the data acquisition work under the transmitter 6 can be realized by matching with the high-gain transmitting antenna 1 during the ground static engine auxiliary spectrum data acquisition test.

When the existing data acquisition device is used for data acquisition, the transmitting power of the existing data acquisition device is high, test data are seriously influenced by clutter, so that in order to reduce the clutter interference resistance of the engine secondary spectrum data acquisition device, a transmitting antenna 1(1) adopted in the invention adopts a Ka frequency band and a 40dB gain lens antenna, and the transmitting antenna 1 can control a 3dB wave beam within 2 degrees by utilizing the characteristic of a narrow wave beam of the Ka frequency band and combining the structural form of the lens antenna. And the lens antenna has the characteristic of gain of more than 40dB, so that the requirement of the whole device on the power of the transmitter 6 is reduced, and the requirement of low transmitting power in a static test scene is met, thereby reducing clutter energy, and the influence of side lobe clutter can be further reduced due to the characteristics of low side lobe and narrow beam. The invention selects the narrow-beam low-sidelobe flat slot array antenna as the receiving antenna 2, reduces the apparent energy of the main-sidelobe clutter and the sidelobe clutter, thereby reducing the influence of the clutter on the collected data. For example, when the receiving antenna 2 adopted by the present invention is a four-quadrant flat slot array antenna, four-quadrant independent reception of the antenna can be realized. The receiving form of the antenna four-quadrant channel provides flexibility, a sum-difference device can be added between the receiving antenna 2 and the multi-channel receiver 7 to realize three-channel data acquisition, and digital three channels can be formed through a digital sum-difference mode after four-channel acquisition.

Further, the multi-channel receiver 7 provided as described above in the present invention may include a plurality of reception channels. Each receiving channel includes: the low-noise amplifier comprises a gating switch, a low-noise amplifier, a first mixer, a first filter, a second mixer, a second filter, an attenuator, a first amplifier, a power divider, a third mixer, a narrow-band filter, a wide-band filter, a second amplifier and a third amplifier.

The gate switches are connected to the receiving antenna 2 and the low noise amplifier, respectively. The low noise amplifier is connected to the first mixer. The first mixer is connected to a first filter and to a feed 8, respectively. The first filter is connected to the second mixer. The second mixers are connected to a second filter and feed 8, respectively. The second filter is connected to the attenuator. The first amplifier is respectively connected with the attenuator and the power divider. The power divider is respectively connected with the third mixer and the broadband filter. And the third mixer is respectively connected with the feed source 8 and the narrow-band filter. The narrow band filter is connected to the second amplifier. The broadband filter is connected to the third amplifier. The second amplifier and the third amplifier are both connected with the multi-channel data collector 4.

Further, in order to realize rapid reading and access of data, the multi-channel data collector 4 adopted by the invention comprises an FPGA, a first DDR4 memory, a second DDR4 memory, a first Raid card, a plurality of solid disks and a plurality of collection channels.

And the plurality of acquisition channels are all connected with the FPGA. The FPGA is respectively connected with the first DDR4 memory and the second DDR4 memory. The first DDR4 memory and the second DDR4 memory are connected with the first Raid card. The first Raid cards are connected to the plurality of solid state disks, respectively, and the first Raid cards are also connected to the data storage 5 through optical fibers.

Based on the above structure of the multi-channel data collector 4, in the implementation process, the multi-channel data collector 4 adopts two sets of DDR4 memories to implement the first-level high-speed data cache. The FPGA in the multi-channel data collector 4 stores the data collected by a plurality of collecting channels (AD collecting channels) in the DDR memory, and each group of DDR4 memories form two channels and are independently responsible for data input of the 4 collecting channels. The first DDR4 memory and the second DDR4 memory with memory frequency of 2400MHz and time sequence CL-16-16-16-39 are selected, and the parallel data writing speed can reach over 50 GB/s. Besides the function of caching, the first-level high-speed data cache fully utilizes the advantage of high random reading performance of a DDR memory to realize real-time extraction and display of collected data.

The multi-channel data collector 4 adopts a PCIE 4.0 × 4 high-speed solid-state electronic disk as the second-level data cache. 8 blocks of high-speed solid-state electronic disks are adopted to form a Raid 0 array, high-speed data 8-channel parallel writing is achieved, and the sequential writing speed exceeding 40GB/s is achieved.

The data storage 5 as the last stage data storage warehouse needs to provide high-reliability and large-capacity data storage, and therefore, the data storage 5 adopted in the present invention is a storage disk array, which includes a second Raid card and a plurality of hard disks.

For example, the storage disk array adopts 8 mechanical hard disks to form a Raid10 array, and 4-channel data parallel writing and 100% data backup are realized. The number of parallel write channels can be dynamically adjusted according to actual needs, and 4 channels can provide the highest write rate of 24 Gbps. And multimode optical fibers are adopted between the high-speed solid-state disk and the disk array for data exchange.

In order to solve the problems of near-earth side lobe clutter interference and isolation between the transmitting antenna and the receiving antenna of the data acquisition system, as shown in fig. 1, the engine secondary spectrum data acquisition device provided by the invention further comprises a wave absorption plate 9. The wave absorption plate 9 constitutes a first chamber for accommodating the transmitting antenna 1 and a second chamber for accommodating the receiving antenna 2.

In order to further ensure the real-time performance and accuracy of the reference frequency and the transmitted excitation signal provided by the frequency source, the feed source 8 adopted in the present invention may include: the frequency multiplier comprises a crystal oscillator, a first power divider, a first frequency multiplier, a second frequency multiplier, a third frequency multiplier, a second power divider, a third power divider, a fourth frequency mixer, a fifth frequency mixer, a first DDS, a second DDS and a fourth amplifier.

The crystal oscillator is connected with the first power divider. The first power divider is respectively connected with the multi-channel data collector 4, the first amplifier, the third frequency multiplier, the second frequency multiplier and the first frequency multiplier. The first frequency multiplier is connected with the second power divider. The second power divider is respectively connected with the first mixer and the fourth mixer. The fourth mixer is connected to the fourth amplifier. The fourth amplifier is connected to the transmitter 6. The second frequency multiplier is connected with the third power divider. The third power divider is respectively connected with the first DDS and the second mixer. The first DDS is connected to a fifth mixer. The fifth mixer is connected to the fourth mixer. The frequency tripler is connected with the second DDS. The second DDS is connected with a fifth mixer.

Based on the specific arrangement of the structure of the feed source 8, the frequency source frequency conversion link up-converts the baseband signal to the radio frequency signal through twice frequency conversion, and adopts DDS to realize frequency hopping source, thereby having the generation capability of step frequency and frequency agile signals.

In addition, in order to monitor the receiving channel signal in real time, the engine secondary spectrum data acquisition device provided by the invention can also be provided with a spectrum analyzer 3. The spectrum analyzers 3 are respectively connected with a multi-channel receiver 7.

In conclusion, the engine secondary spectrum data acquisition device provided by the invention solves the problems of serious clutter interference and data loss caused by insufficient data storage bandwidth during an engine secondary spectrum data acquisition test, provides test support for the acquisition of the engine secondary spectrum target characteristic original data, and can conveniently, quickly and efficiently realize the omnibearing and multi-angle data acquisition work of the engine secondary spectrum.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first and second elements are both elements, but may not be the same element. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method or device comprising the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.

Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit may be merely a division of a logical function, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims

1. An engine secondary spectrum data acquisition device, characterized by comprising: a transceiver system and a storage system;

the transceiving system comprises a multi-channel receiver;

2. The engine secondary spectrum data acquisition device of claim 1, wherein the transceiver system further comprises: the device comprises a feed source, a transmitter, a transmitting antenna and a receiving antenna;

the feed source is respectively connected with the transmitter, the multi-channel receiver and the multi-channel data collector; the transmitter is connected with the transmitting antenna; the receiving antenna is connected with the multi-channel receiver.

3. The engine side spectrum data acquisition device of claim 2, wherein the multi-channel receiver comprises a plurality of receiving channels; each of the receiving channels includes: the low-noise amplifier comprises a gating switch, a low-noise amplifier, a first mixer, a first filter, a second mixer, a second filter, an attenuator, a first amplifier, a power divider, a third mixer, a narrow-band filter, a broadband filter, a second amplifier and a third amplifier;

4. The engine secondary spectrum data acquisition device of claim 3, wherein the multi-channel data acquisition device comprises an FPGA, a first DDR4 memory, a second DDR4 memory, a first Raid card, a plurality of solid disks, and a plurality of acquisition channels;

a plurality of acquisition channels are connected with the FPGA; the FPGA is respectively connected with the first DDR4 memory and the second DDR4 memory; the first DDR4 memory and the second DDR4 memory are connected with the first Raid card; the first Raid card is connected with the plurality of solid discs respectively, and the first Raid card is further connected with the data storage through an optical fiber.

5. The engine secondary spectrum data acquisition device of claim 4, wherein the data storage comprises a second Raid card and a plurality of hard disks;

6. The engine auxiliary spectrum data acquisition device of claim 4, wherein the memory frequency of the first DDR4 memory and the second DDR4 memory are 2400 MHz; the timing sequence of the first DDR4 memory and the second DDR4 memory are CL-16-16-16-39.

7. The engine secondary spectrum data acquisition device according to claim 2, further comprising a wave absorption plate; the wave-absorbing plate forms a first cavity for accommodating the transmitting antenna and a second cavity for accommodating the receiving antenna.

8. The engine secondary spectrum data acquisition device of claim 2, wherein the receiving antenna is a flat plate slot array antenna.

9. The engine secondary spectrum data acquisition device of claim 2, wherein the transmitting antenna is a lens antenna.

10. The engine side spectral data acquisition device of claim 3, wherein the feed comprises: the frequency multiplier comprises a crystal oscillator, a first power divider, a first frequency multiplier, a second frequency multiplier, a third frequency multiplier, a second power divider, a third power divider, a fourth frequency mixer, a fifth frequency mixer, a first DDS (direct digital synthesizer), a second DDS (direct digital synthesizer) and a fourth amplifier;

the crystal oscillator is connected with the first power divider; the first power divider is respectively connected with the multi-channel data collector, the first amplifier, the third frequency multiplier, the second frequency multiplier and the first frequency multiplier; the first frequency multiplier is connected with the second power divider; the second power divider is respectively connected with the first mixer and the fourth mixer; the fourth mixer is connected with the fourth amplifier; the fourth amplifier is connected with the transmitter; the second frequency multiplier is connected with the third power divider; the third power divider is respectively connected with the first DDS and the second mixer; the first DDS is connected with the fifth mixer; the fifth mixer is connected with the fourth mixer; the frequency tripler is connected with the second DDS; the second DDS is connected to the fifth mixer.