Radio frequency light conversion direction finding device

Abstract

The utility model provides a radio frequency light conversion direction finding device, which relates to the technical field of direction finding, and comprises a direction finding antenna array and a monitoring module, the direction finding antenna array is connected with the monitoring module through mooring cables, and a mooring power supply is arranged between the mooring cables. According to the utility model, the problem of low high-altitude direction finding accuracy is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of direction finding, in particular to a radio frequency light conversion direction finding device. Background Art

[0002] In the target situation system, the hardware system uses a tethered floating wing platform as a carrier, equipped with a monitoring and direction-finding antenna array, and stays in the air for a long time to perform monitoring and direction-finding. For monitoring and direction-finding in the air, the following aspects must be met:

[0003] Direction finding sensitivity: ≤10uv / m typical (25kHz bandwidth);

[0004] Maximum direction finding intermediate frequency bandwidth: 80MHz;

[0005] Maximum lift-off altitude: ≥100 meters;

[0006] Maximum flight duration: ≥10 hours.

[0007] Most existing direction-finding equipment adopts the form of fixed stations. The height of fixed stations and antennas is limited, resulting in a small monitoring distance and monitoring area. At the same time, ground-based radio monitoring and direction-finding equipment, whether mobile or fixed, cannot escape the influence of terrain, such as tall buildings and hills, which will affect the results of monitoring and direction-finding, mainly by blocking the signal. In order to realize the aerial direction-finding of the battlefield target situation system, a direction-finding device that cooperates with the tethered floating wing platform is required. Utility Model Content

[0008] In view of the above-mentioned deficiencies in the prior art, the utility model provides a radio frequency light conversion direction-finding device that solves the problem of low accuracy in high-altitude direction-finding.

[0009] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is: a radio frequency light conversion direction finding device, comprising:

[0010] The direction-finding antenna array and the monitoring module are connected via mooring cables, and a mooring power supply is also provided between the mooring cables.

[0011] The present invention provides the following beneficial effects: a radio frequency light-conversion direction-finding device comprising a direction-finding antenna array and a monitoring module, the antenna array and the monitoring module being connected by a mooring cable. A mooring power supply is also provided between the mooring cables. The mooring cables comprise a high-voltage mooring cable disposed between the mooring power supply and the monitoring module, and a low-voltage mooring cable disposed between the mooring power supply and the direction-finding antenna array. The proposed radio frequency light-conversion direction-finding device, when combined with a moored buoyant wing platform, provides direction-finding support for a target situation system, achieving a longer monitoring range and a larger monitoring area, while also avoiding the influence of terrain and topography, and preventing obstruction of monitoring signals.

[0012] Furthermore, the mooring cable includes a high-voltage mooring cable arranged between the mooring power supply and the monitoring module and a low-voltage mooring cable arranged between the mooring power supply and the direction-finding antenna array.

[0013] Furthermore, a connecting rope is provided between the tethered power supply and the direction-finding antenna array.

[0014] Furthermore, the monitoring module includes a cable retractor and a monitoring processing terminal connected via a power cable and an optical fiber.

[0015] Furthermore, the direction-finding antenna array is provided with a direction-finding switch and a Beidou module, and also includes a foldable low-hanging direction-finding antenna, a mid-hanging direction-finding antenna and a high-hanging direction-finding antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] This specification will be further described in the form of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting, and in these embodiments, like numbers represent like structures, wherein:

[0017] Figure 1 This is an exemplary schematic diagram of a radio frequency light conversion direction finding device of the present invention;

[0018] Figure 2 This is a schematic diagram of the direction-finding antenna array of the radio frequency light conversion direction-finding device of the utility model;

[0019] Figure 3 This is a schematic diagram of the folded direction-finding antenna array of the radio frequency light conversion direction-finding device of the utility model;

[0020] Figure 4 This is a schematic diagram of a low-hanging direction-finding antenna of the direction-finding antenna array of the utility model;

[0021] Figure 5 This is a schematic diagram of the vertical direction-finding antenna in the direction-finding antenna array of the utility model;

[0022] Figure 6 This is a schematic diagram of a high vertical direction finding antenna of the direction finding antenna array of the utility model;

[0023] Figure 7 This is a principle block diagram of a direction-finding switch of a direction-finding antenna array of the present utility model.

[0024] Among them: 1. Direction-finding antenna array; 2. Low-voltage mooring cable; 3. Connecting rope; 4. Mooring power supply; 5. High-voltage mooring cable; 6. Monitoring module. DETAILED DESCRIPTION

[0025] The specific implementation methods of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be clear that the present invention is not limited to the scope of the specific implementation methods. For those skilled in the art, as long as various changes are within the scope of the present invention defined and determined by the appended claims, these changes are obvious, and all utility model creations using the concept of the present invention are protected.

[0026] Example

[0027] In some embodiments, as Figure 1 As shown, a radio frequency light direction-finding device includes a direction-finding antenna array 1 and a monitoring module 6. The direction-finding antenna array 1 and the monitoring module 6 are connected by a mooring cable, and a mooring power supply 4 is also provided between the mooring cables.

[0028] In some embodiments, the radio frequency light direction finding device can be connected through a combination of an inclined rod of a tethered balloon, a 20-tube hanging clip, an antenna mounting plate, a paratrooper rope, and a climbing buckle.

[0029] In some embodiments, the mooring cable may include a high-voltage mooring cable 5 provided between the mooring power supply 4 and the monitoring module 6 and a low-voltage mooring cable 2 provided between the mooring power supply 4 and the direction-finding antenna array 1 .

[0030] In some embodiments, a connecting rope 3 is further provided between the tethered power supply 4 and the direction-finding antenna array 1 .

[0031] In some embodiments, the monitoring module 1 may include a cable retractor and a monitoring processing terminal connected via a power cable and an optical fiber.

[0032] In some embodiments, the monitoring module may preferably be a four-channel receiver model YT30R18G8M-13.

[0033] In some embodiments, the monitoring and processing terminal may preferably be model ZL2003-30.

[0034] In some embodiments, the direction-finding antenna array 1 is provided with a direction-finding switch and a BeiDou module, and also includes a foldable low-hanging direction-finding antenna, a mid-hanging direction-finding antenna, and a high-hanging direction-finding antenna.

[0035] In some embodiments, the Beidou module may preferably use a positioning chip of model K823G. Table 1 shows the main wiring diagram of the positioning module, monitoring module, and monitoring processing terminal.

[0036] Table 1

[0037]

[0038] In some embodiments, as Figure 4As shown, the low-hanging direction-finding antenna element can use a 700mm dipole antenna. The main indicators include:

[0039] Frequency range: 30MHZ~500MHz;

[0040] Polarization: linear polarization (vertical);

[0041] Amplifier gain: 15dB (active, typical);

[0042] Voltage standing wave ratio: ≤3 (typical value);

[0043] Output impedance: 50Ω.

[0044] In some embodiments, as Figure 5 As shown, the mid-vertical direction-finding antenna element can use a 200mm dipole antenna. The main indicators include:

[0045] Frequency range: 500MHz~2GHz;

[0046] Polarization: linear polarization (vertical);

[0047] Amplifier gain: 15dB (active, typical);

[0048] Voltage standing wave ratio: ≤3 (typical value);

[0049] Output impedance: 50Ω.

[0050] In some embodiments, as Figure 6 As shown, the high vertical direction finding antenna element can use a 60mm monopole antenna, and its main indicators include:

[0051] Frequency range: 2GHz~18GHz;

[0052] Polarization: linear polarization (vertical);

[0053] Amplifier gain: 15dB (active, typical);

[0054] Voltage standing wave ratio: ≤3 (typical value);

[0055] Output impedance: 50Ω.

[0056] In some embodiments, the RF-to-light direction-finding device may further include a direction-finding switch, the main indicators of which include:

[0057] Operating frequency range: 18GHz~50GHz;

[0058] Input standing wave ratio: ≤2;

[0059] Gain: ≥2dB (direction finding channel);

[0060] Isolation between selected path and non-selected path: ≥50dB;

[0061] RF input and output impedance: 50 ohms;

[0062] Port power supply: +5V;

[0063] Power supply: +12V;

[0064] Switch response speed: ≤1μS;

[0065] Control level: TTL level.

[0066] In some embodiments, as Figure 2 As shown, the direction-finding antenna array (1) may also include a 30 MHz to 500 MHz antenna array and a switch, a 500 MHz to 2 GHz antenna array and a switch, a 2 GHz to 18 GHz antenna array and a switch, and an 18 GHz to 50 GHz antenna array and a switch.

[0067] In some embodiments, as Figure 3 As shown, the direction-finding antenna array 1 is an array composed of foldable antennas.

[0068] In some embodiments, as Figure 7 As shown, the switching relationship of the direction-finding antenna array 1 in its working mode is as follows: the low, medium, high, and correction on the top layer are frequency band selections; after selection, they are compensated by the amplifier and then switched to two outputs; among them, the power control module provides drive IO and power supply, and the positioning and directional board plus the GPS / Beidou antenna realize the positioning function.

[0069] In some embodiments, the direction-finding antenna array 1 may further include a 30 MHz to 500 MHz antenna array and a switch, a 500 MHz to 2 GHz antenna array and a switch, a 2 GHz to 18 GHz antenna array and a switch, and an 18 GHz to 50 GHz antenna array and a switch.

[0070] In some embodiments, the direction-finding antenna array 1 may further include a 30MHz-500MHz antenna array and a 500MHz-2GHz antenna array installed outside the antenna cover and in a circular array horizontally, a 2GHz-18GHz antenna array and an 18GHz-50GHz antenna array installed inside the antenna cover and in a circular array horizontally, a first switching switch connected to the 30MHz-500MHz antenna array, a second switching switch connected to the 500MHz-2GHz antenna array, a third switching switch connected to the 2GHz-18GHz antenna array, a fourth switching switch connected to the 18GHz-50GHz antenna array, a multi-channel RF receiver connected to the first switching switch, the second switching switch, the third switching switch and the fourth switching switch, an intermediate frequency multi-channel amplifier module connected to the multi-channel RF receiver, a logic control unit connected to the intermediate frequency multi-channel amplifier module, and a positioning module and an electronic compass both connected to the logic control unit.

[0071] In some embodiments, the 30MHz~500MHz antenna array and the 500MHz~2GHz antenna array are both seven-element antenna arrays, and the 30MHz~500MHz antenna array and the 500MHz~2GHz antenna array both use dipole antenna arrays; the 2GHz~18GHz antenna array and the 18GHz~50GHz antenna array are both nine-element antenna arrays, and the 2GHz~18GHz antenna array and the 18GHz~50GHz antenna both use monopole antenna arrays.

[0072] In some embodiments, the monopole antenna array includes a monopole antenna, a reflecting surface, a vibrator, a connector, and an amplifier; the monopole antenna is located above the reflecting surface, the connector and the amplifier are both located below the reflecting surface, the connector is connected to the amplifier, and the reflecting surface is located at one end of the vibrator.

[0073] In some embodiments, a glass insulator is provided in the connector, the glass insulator is welded to the monopole antenna, and a groove is provided at the bottom of the reflecting surface.

[0074] In some embodiments, the 30MHz~500MHz antenna array and the 500MHz~2GHz antenna array adopt a staggered and staggered design; the diameter of the 30MHz~500MHz antenna array is 1300mm, and the diameter of the 500MHz~2GHz antenna array is 250mm; the 2GHz~18GHz antenna array and the 18GHz~50GHz antenna array are installed in concentric circles, the outer circle is the 2GHz~18GHz antenna array with a diameter of 75mm, and the inner circle is the 18GHz~50GHz antenna array with a diameter of 25mm.

[0075] In some embodiments, the 30MHz to 500MHz antenna array and the first switch are used to receive electromagnetic signals within the 30MHz to 500MHz frequency band within the region; the 500MHz to 2GHz antenna array and the second switch are used to receive electromagnetic signals within the 500MHz to 2GHz frequency band within the region; the 2GHz to 18GHz antenna array and the third switch are used to receive electromagnetic signals within the 2GHz to 18GHz frequency band within the region; the 18GHz to 50GHz antenna array and the fourth switch are used to receive electromagnetic signals within the 18GHz to 50GHz frequency band within the region; and the multi-channel RF receiver is used to receive electromagnetic signals within the terrestrial equipment. In response to the instructions sent to the direction-finding antenna array, each frequency antenna array selects the frequency band through a switching switch, and amplifies, converts the frequency band and filters it to output an intermediate frequency signal; the intermediate frequency multi-channel amplifier module is used to perform multi-channel amplification processing on the intermediate frequency signal; the positioning module is used to perform positioning and north-seeking based on the data collected by the direction-finding antenna array; the electronic compass is used to determine the equipment orientation based on the data collected by the direction-finding antenna array; the multi-channel optical terminal is used to transmit the position data, electronic compass data and amplified intermediate frequency data to the ground equipment to realize the conversion between optical signals and electrical signals; the logic control unit is used to power and control the direction-finding antenna array and receive the position data and electronic compass data.

[0076] In some embodiments, ground equipment located on the ground part of the launch platform issues task instructions to the direction-finding antenna array. After receiving the instructions, the antenna arrays of each frequency band select the frequency band through a switching switch. After the selection is completed, the frequency band data is amplified, frequency converted and filtered through a multi-channel RF receiver to output the intermediate frequency signal. The processed intermediate frequency signal is amplified by an intermediate frequency multi-channel amplifier module. At the same time, the data collected by the positioning and direction-finding antenna is analyzed by the positioning module and transmitted to the logic control unit together with the electronic compass data. Finally, the intermediate frequency data and position data are transmitted to the ground equipment through a multi-channel optical terminal.

[0077] In some embodiments, a direction-finding antenna array is installed beneath an aerial platform and integrates antenna arrays for various frequency bands, a switching switch, a multi-channel RF receiver, a positioning module, an electronic compass, a logic control unit, an intermediate frequency (IF) multi-channel amplifier module, and a multi-channel optical transceiver. The signals received by the antennas are processed by the switching switch before entering the multi-channel receiver, where they are processed to produce IF signals corresponding to the number of channels. After compensation by the IF multi-channel amplifier module, the IF signals enter ground-based equipment (processing terminals) for quantitative processing, yielding the final relative direction-finding result. The electronic compass provides real-time true north azimuth, which is combined with the relative direction-finding result to produce a direction-finding result relative to true north.

[0078] In some embodiments, based on the instructions issued by the ground equipment to the direction-finding antenna array, the switches in P0_1-P0_4 of the switch are controlled by the logic control unit to select the frequency band and output the radio frequency signal (intermediate frequency signal). The intermediate frequency signal is input into the intermediate frequency amplification module through the OUT pin of the multi-channel radio frequency receiver for amplification. The amplified intermediate frequency information is transmitted to the P1_0 pin of the logic control unit via the S pin. The electromagnetic information collected by the direction-finding antenna array is transmitted to the P1_0 pin of the logic control unit via the OUT pin after positioning and north-seeking. The electronic compass data is transmitted to the P1_1 pin of the logic control unit via the D1 pin. Finally, the intermediate frequency data and position data are transmitted via the I / Q of the multi-channel optical terminal for photoelectric signal transmission.

[0079] In some embodiments, when constructing the direction-finding antenna array, in order to achieve a wide operating frequency band range of 30MHz to 50GHz and full-band correlation interferometer direction-finding technology, special process improvements are made to achieve the application of correlation interferometer direction-finding in the range of 18GHz to 50GHz. First, the monitoring direction-finding antenna array is divided into five sections according to the operating frequency band through an antenna simulator, namely a 30MHz to 500MHz seven-element antenna array, a 500MHz to 2GHz seven-element antenna array, a 2GHz to 18GHz nine-element antenna array, and a 18GHz to 50GHz nine-element antenna array. In terms of antenna form selection, the 30MHz to 500MHz seven-element antenna array and the 500MHz to 2GHz seven-element antenna array use a dipole antenna array, while the 2GHz to 18GHz nine-element antenna array and the 18GHz to 50GHz nine-element antenna array use a monopole antenna array.

[0080] In some embodiments, direction finding is performed using a correlation interferometer, which places high demands on the amplitude consistency and phase consistency of the direction finding antenna element. To address antenna amplitude and phase consistency, first, the circuits of each antenna element must be identical. Second, test screening and antenna matching boards must be performed. The direction finding antenna element uses a dipole antenna, which creates an unbalanced state when an RF signal is input. Therefore, in engineering practice, impedance transformation and balanced-to-unbalanced states must be addressed. The consistency test method is as follows:

[0081] a) Select several test matching boards according to the principle of unified batch production and unified device procurement, and number them at the same time;

[0082] b) Construction site, site diagram reference Figure 4 :

[0083] Matching board No. 1 is tested according to the above figure.

[0084] c) Vector network analyzer requirements

[0085] Vector network analyzer frequency: shortwave band.

[0086] Vector network analyzer power: -20dBm.

[0087] Measurement content: Gain and phase are measured simultaneously.

[0088] d) Normalization

[0089] Normalize the gain and phase of matching board No. 1 respectively.

[0090] e) Subsequent board testing

[0091] Connect the subsequent test matching boards separately and measure the gain difference and phase difference.

[0092] The consistency test method for switches and calibration is similar to the above method. Only by using the above method can the theoretical direction finding be achieved.

[0093] In some embodiments, the implementation of a correlation interferometer in the 18GHz to 50GHz frequency band is primarily limited by antenna size and mounting space. Therefore, the array aperture and oscillator volume are considered when constructing the antenna array. The antenna aperture is designed to be 25mm based on the relationship between the antenna aperture and the operating frequency wavelength. Since the monopole antenna is a half-wave oscillator, the antenna oscillator length is designed based on the relationship between the maximum operating frequency range and length and the average characteristic impedance of the oscillator. After the antenna array aperture and size are designed, the actual project installation is considered. Since the monopole does not have a transformer due to its shape, the signal needs to be directly located on the amplifier. Therefore, in actual projects, the monopole direction-finding antenna array includes a monopole antenna, a reflector, a connector, and an amplifier. The monopole antenna array is located above the reflector, and the connector is located below. The connector connects to the amplifier. The connector contains a glass insulator, which is welded together by slotting the reflector and the monopole antenna made of capillary copper tube. Since the antenna array may have cold solder joints during assembly, which may cause the oscillator to fall off in harsh environments, in order to improve the stability of the equipment, two methods will be used to solve this problem: one is to gold-plate the surface, and the other is to groove the bottom of the reflective surface.

[0094] In some embodiments, the 30MHz-500MHz antenna array and the 500MHz-2GHz antenna array adopt a staggered and staggered design. The 2GHz-18GHz antenna array and the 18GHz-50GHz antenna array are installed in concentric circles, with the outer circle being the 2GHz-18GHz antenna array with an antenna diameter of 75mm, and the inner circle being the 18GHz-50GHz antenna array with an antenna diameter of 25mm. The 30MHz-500MHz monitoring direction-finding antenna array and the 500MHz-2GHz monitoring direction-finding antenna array in the direction-finding antenna array 9 are installed and mounted on the outside of the radome and arranged in a circular array in the horizontal direction. The 30MHz-500MHz monitoring direction-finding antenna array has a diameter of 1300mm, and the 500MHz-2GHz monitoring direction-finding antenna array has a diameter of 250mm. The 2GHz-18GHz monitoring direction-finding antenna array inside the radome has a diameter of 75mm.

[0095] In some embodiments, when the system is operating, a user logs into the operating software at a display and control terminal (including the back-end detection and analysis station and the target situation presentation station) to issue task instructions. The main control board in the processing terminal receives the monitoring or direction-finding task instructions from the host computer and transmits the instructions to the signal processing board. The signal processing board decomposes the instructions (including service function items, frequency band requirements, bandwidth requirements, receiver mode, etc.) and transmits the digital signal of the instructions to the optoelectronic conversion module. The optoelectronic conversion module uses the digital-to-optical function to transmit the instruction signal to the tethered cable in the retractor. The signal is transmitted via the tethered cable to the multi-channel optical terminal in the air. The multi-channel optical terminal performs the optical-to-digital conversion process and sends the instructions to the multi-channel radio frequency receiver. The multi-channel radio frequency receiver and the antenna execute the task.

[0096] In some embodiments, since the direction-finding system is implemented using a correlation interferometer, the direction-finding antenna must consider the baseline when performing direction-finding. In this system, the number of antenna arrays is greater than the number of RF receiving modules. During operation, switching between antennas occurs. The signal selected by the switch enters the multi-channel RF receiver below. The intermediate frequency signal generated by the multi-channel RF receiver is output to the multi-channel optical terminal through the first intermediate frequency multi-channel amplifier module. Specifically, the signal selected by the switch enters the multi-channel RF receiver, which filters, frequency converts, and amplifies the signal before transmitting it to the first intermediate frequency multi-channel amplifier module. Finally, the signal enters the multi-channel optical terminal for backhaul.

[0097] Satellite signals collected by the Beidou antenna are parsed by the Beidou module to obtain information such as latitude, longitude, and time, which is then transmitted to the logic control unit. North-finding and other azimuth information received by the electronic compass is also transmitted to the logic control unit. Control commands are issued by the ground terminal and transmitted to the airborne platform via digital optical conversion by a multi-channel optical transceiver. These signals are then integrated and transmitted to the tethered power supply via a tethered cable. The tethered cable within the retractor transmits optical signals from above and below. The ground terminal, connected to the retractor, converts the optical signal into an intermediate frequency signal, which is processed by the receiver.

[0098] In some embodiments, the intermediate frequency (IF) signal returned by the monitoring and direction-finding antenna array enters the processing terminal and is amplified by the terminal's second IF multi-channel amplifier module. The signal processing board within the processing terminal performs IQ data acquisition, FFT, and scanning direction finding on the IF signal. The built-in front-end data processing software (i.e., the front-end data processing module) extracts conventional signals, frequency-hopping signals, and radar signals from the signal data. For more complex functions, the processing terminal transmits the IQ data back to the back-end server. The server's back-end data processing module receives the monitoring data, processes and compiles statistics, and performs a series of algorithmic calculations, including radiation source analysis, trajectory fitting, network station analysis, modulation identification, and intersection positioning. The final completed task result data is returned to the display and control terminal, which displays radiation source signal analysis, real-time monitoring results, data statistics, regional situation displays, and the track of mobile radiation sources. Specifically, the returned IF signal is amplified by the processing terminal's IF multi-channel amplifier module and transmitted to the signal processing board, which performs IQ acquisition, FFT conversion, scanning direction finding, and single-frequency direction finding. IQ data is also transmitted to a backend server, where an algorithm library analyzes and processes conventional communication signals, radar communication signals, frequency hopping signals, and spread spectrum signals. The final processed task results are fed back to the display and control terminal, where the target situation system software displays the task results. Once completed, the system can perform multi-source data fusion processing in the time, frequency, and spatial domains to improve the integrity of spectrum data. Various feature parameter extraction algorithms and modulation recognition algorithms can be used to determine detailed parameters such as frequency, field strength, time, location, and radiation source type of frequency-using equipment in the area.

[0099] In some embodiments of this specification, a radio frequency (RF) light-reflection direction-finding device is provided, comprising a direction-finding antenna array and a monitoring module. The DF antenna array and the monitoring module are connected by a tethering cable, with a tethering power supply interposed between the tethering cables. The tethering cables include a high-voltage tethering cable disposed between the tethering power supply and the monitoring module, and a low-voltage tethering cable disposed between the tethering power supply and the DF antenna array. The RF light-reflection direction-finding device proposed in this utility model, when combined with a tethered floating wing platform, provides direction-finding support for a target situation system, enabling longer monitoring distances and larger monitoring areas, while also avoiding the effects of terrain and topography, and preventing obstruction of monitoring signals.

[0100] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A radio frequency light direction finding device, characterized in that: The invention comprises a direction-finding antenna array (1) and a monitoring module (6), wherein the direction-finding antenna array (1) and the monitoring module (6) are connected via a mooring cable, and a mooring power supply (4) is provided between the mooring cables; the mooring cable comprises a high-voltage mooring cable (5) provided between the mooring power supply (4) and the monitoring module (6) and a low-voltage mooring cable (2) provided between the mooring power supply (4) and the direction-finding antenna array (1); a connecting rope (3) is provided between the mooring power supply (4) and the direction-finding antenna array (1); the direction-finding antenna array (1) may further comprise a 30 MHz to 500 MHz mooring cable. MHz antenna array and switching switch, 500MHz~2GHz antenna array and switching switch, 2GHZ~18GHz antenna array and switching switch and 18GHZ~50GHz antenna array and switching switch; the 30MHz~500MHz antenna array and 500MHz~2GHz antenna array adopt a staggered layer and staggered design; the 2GHz~18GHz antenna array and 18GHz~50GHz antenna array are installed in concentric circles, with the outer circle being the 2GHz~18GHz antenna array and the inner circle being the 18GHz~50GHz antenna array.

2. The radio frequency light deflection direction finding device according to claim 1, characterized in that: The monitoring module (6) comprises a cable retractor and a monitoring processing terminal connected via a power cable and an optical fiber.

3. The radio frequency light deflection direction finding device according to claim 1, characterized in that: The direction-finding antenna array (1) is provided with a direction-finding switch and a Beidou module, and further comprises a foldable low-hanging direction-finding antenna, a mid-hanging direction-finding antenna and a high-hanging direction-finding antenna.

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