CN116647289B

CN116647289B - Multichannel transceiver device, calibration device, system, method and electronic device

Info

Publication number: CN116647289B
Application number: CN202310926696.XA
Authority: CN
Inventors: 冷喆祥; 刘胜生; 陈沫; 秦晓峰; 郑冠雨
Original assignee: Smart Dust Shanghai Communication Technology Co ltd; Shanghai Construction No 7 Group Co Ltd
Current assignee: Smart Dust Shanghai Communication Technology Co ltd; Shanghai Construction No 7 Group Co Ltd
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2023-09-26
Anticipated expiration: 2043-07-27
Also published as: CN116647289A

Abstract

The application discloses multichannel transceiver equipment, a calibration device, a system, a method and electronic equipment, wherein the multichannel transceiver equipment comprises a plurality of service transceiver channels and a plurality of antenna units correspondingly connected with the service transceiver channels, the multichannel transceiver equipment comprises equipment intermediate frequency ports, the equipment intermediate frequency ports are connected with external frequency mixing radiation links, so that an intermediate frequency circuit in a reference transceiver channel carries out radio frequency signal transceiving with the antenna units corresponding to the service transceiver channels to be calibrated through the external frequency mixing radiation links; and determining the gain of the service transceiving channel to be calibrated by determining the power of the transmitting signal, the power of the receiving signal, the path loss of the external mixing radiation link and the calibrated gain of the intermediate frequency circuit in the reference transceiving channel, and carrying out calibration. The calibration stage of the application does not need a test instrument which occupies a large bandwidth and a high frequency band for a long time. The external frequency mixing radiation link can adopt local oscillation signals in the multichannel transceiver equipment, and frequency synchronization can be realized without a complex synchronization scheme.

Description

Multichannel transceiver device, calibration device, system, method and electronic device

Technical Field

The application relates to the field of antenna calibration, in particular to a method and a system for calibrating multichannel transceiver equipment.

Background

Along with the evolution of the multichannel transceiver, the multichannel transceiver evolves to a large bandwidth and a high frequency band, which means that the performance of the instrument for testing the multichannel transceiver needs to be greatly improved.

As the frequency and bandwidth of the multichannel transceiver device increases, higher requirements are placed on the performance of the meter, which adversely affects the calibration of the multichannel transceiver device.

Disclosure of Invention

The application aims to: the present application aims to provide a multichannel transceiver device, a calibration device, a system, a method and an electronic device, which solve the above problems.

In order to achieve the above object, the present application adopts the following technical scheme.

In a first aspect, the present application provides a multi-channel transceiver, where the multi-channel transceiver includes a plurality of service transceiver channels and a plurality of antenna units correspondingly connected to the service transceiver channels, and the multi-channel transceiver includes an intermediate frequency port;

The equipment intermediate frequency port is electrically connected with the intermediate frequency circuits in the business receiving and transmitting channels through a switch;

the device intermediate frequency port is used for being connected with an external frequency mixing radiation link so that an intermediate frequency circuit in a reference transceiving channel can transmit and receive radio frequency signals through the external frequency mixing radiation link and the antenna unit corresponding to the service transceiving channel to be calibrated, and therefore the gain of the service transceiving channel to be calibrated is determined by determining the power of a transmitting signal, the power of a receiving signal, the path loss of the external frequency mixing radiation link and the calibration gain of the intermediate frequency circuit in the reference transceiving channel, and the service transceiving channel to be calibrated is calibrated based on the gain; wherein the reference transceiving channel is the selected service transceiving channel.

In a second aspect, the present application provides a calibration apparatus, configured to calibrate a multi-channel transceiver, where the multi-channel transceiver includes a plurality of service transceiver channels and a plurality of antenna units correspondingly connected to the service transceiver channels, and the multi-channel transceiver includes an equipment intermediate frequency port; the equipment intermediate frequency port is electrically connected with the intermediate frequency circuits in the business receiving and transmitting channels through a switch;

The calibration device comprises an external mixed-frequency radiation link and a processor;

the external frequency mixing radiation link is used for being connected with the equipment intermediate frequency port so that an intermediate frequency circuit in the reference receiving and transmitting channel can receive and transmit radio frequency signals through the external frequency mixing radiation link and the antenna unit corresponding to the service receiving and transmitting channel to be calibrated;

the processor is configured to determine a gain of the traffic transceiving channel to be calibrated by determining a power of a transmit signal, a power of a receive signal, a path loss of the external mixed-frequency radiation link, and a calibration gain of an intermediate frequency circuit in the reference transceiving channel, and calibrate the traffic transceiving channel to be calibrated based on the gain; wherein the reference transceiving channel is the selected service transceiving channel.

In a third aspect, the present application provides a calibration system comprising:

the multi-channel receiving and transmitting device comprises a plurality of service receiving and transmitting channels and a plurality of antenna units correspondingly connected with the service receiving and transmitting channels, and the multi-channel receiving and transmitting device comprises a device intermediate frequency port; the equipment intermediate frequency port is electrically connected with the intermediate frequency circuits in the business receiving and transmitting channels through a switch; the equipment intermediate frequency port is used for being connected with an external frequency mixing radiation link;

The calibrating device is used for calibrating the multichannel transceiving equipment;

In a fourth aspect, the present application provides a method for calibrating a multichannel transceiver device, where the multichannel transceiver device includes a plurality of service transceiver channels and a plurality of antenna units correspondingly connected to the service transceiver channels, and the multichannel transceiver device includes a device intermediate frequency port, where the device intermediate frequency port is electrically connected to an intermediate frequency circuit in each service transceiver channel through a switch;

The method comprises the following steps:

selecting a reference transceiving channel from the service transceiving channels;

electrically connecting the equipment intermediate frequency port with an intermediate frequency circuit in the reference receiving and transmitting channel through a switch;

connecting the equipment intermediate frequency port with an external frequency mixing radiation link so that an intermediate frequency circuit in the reference receiving and transmitting channel can receive and transmit radio frequency signals through the external frequency mixing radiation link and the antenna unit corresponding to the service receiving and transmitting channel to be calibrated;

and determining the gain of the service transceiving channel to be calibrated by determining the power of a transmitting signal, the power of a receiving signal, the path loss of the external mixing radiation link and the calibration gain of an intermediate frequency circuit in the reference transceiving channel, and calibrating the service transceiving channel to be calibrated based on the gain.

In a fifth aspect, the present application provides an electronic device comprising a processor and a memory; the memory is used for storing operation instructions; and the processor is used for executing the multi-channel transceiver equipment calibration method by calling the operation instruction.

Compared with the prior art, the multichannel transceiver provided by the embodiment of the application is provided with the equipment intermediate frequency port, so that the multichannel transceiver is convenient to connect with an external frequency mixing radiation link, and the calibration of the service transceiver can be realized by determining the power of a transmitting signal, the power of a receiving signal, the path loss of the external frequency mixing radiation link and the calibration gain of an intermediate frequency circuit in a reference transceiver channel, so that the scheme is concise, and the efficiency and convenience of the calibration of the multichannel transceiver are greatly improved.

In the practical calibration process of the multichannel transceiver, the calibration device provided by the application does not need expensive high-frequency instrument intervention, the whole calibration device is externally provided with an external frequency mixing radiation link, and the calibration of the service transceiver can be realized by determining the power of a transmitting signal, the power of a receiving signal, the path loss of the external frequency mixing radiation link and the calibration gain of an intermediate frequency circuit in a reference transceiver channel, so that the scheme is concise, the calibration efficiency is greatly improved, and the complexity of the calibration device is reduced.

The calibration system and the method provided by the application have the advantages that the environment networking is simple, and the whole production calibration process is independent of high-performance instruments such as ultra-large bandwidth, ultra-high frequency signal sources/spectrometers and the like.

The calibration stage of the application only uses a vector network analyzer when calibrating the path loss of an external frequency mixing radiation link, and does not need a testing instrument which occupies a large bandwidth and a high frequency band for a long time.

The external frequency mixing radiation link can adopt local oscillation signals in the multichannel transceiver equipment, and frequency synchronization can be realized without a complex synchronization scheme.

The electronic equipment provided by the application can calibrate the service transceiving channels of the multichannel transceiving equipment, does not need high-frequency test equipment occupied for a long time, and has high calibration efficiency and simple scheme.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic block diagram of a millimeter wave device;

fig. 2 is a schematic block diagram of a multi-channel transceiver according to a first embodiment of the present application;

fig. 3 is a schematic block diagram of a multi-channel transceiver according to a second embodiment of the present application;

fig. 4 is a schematic block diagram of a clock local oscillation circuit in a multi-channel transceiver according to an embodiment of the present application;

FIG. 5 is a schematic block diagram of a calibration device according to a third embodiment of the present application;

FIG. 6 is a schematic block diagram of a calibration device according to a fourth embodiment of the present application;

FIG. 7 is a schematic block diagram of a calibration system according to a fifth embodiment of the present application;

FIG. 8 is a schematic block diagram of a calibration system according to a sixth embodiment of the present application;

FIG. 9 is a schematic block diagram of a calibration method according to a seventh embodiment of the present application;

FIG. 10 is a schematic block diagram II of a calibration method according to a seventh embodiment of the present application;

FIG. 11 is a schematic diagram of calibrating path loss of an external mixed-frequency radiating link (point B to point C) in accordance with an embodiment of the present application;

FIG. 12 is a schematic diagram of a calibration method for determining calibration gain of an intermediate frequency circuit in a reference transmit channel in a calibration method according to an embodiment of the present application;

fig. 13 is a schematic diagram of a calibration method for determining a calibration gain of an intermediate frequency circuit in a reference receiving channel in a calibration method according to an embodiment of the present application;

FIG. 14 is a flowchart of a calibration method according to a seventh embodiment of the present application;

reference numerals illustrate:

10-multichannel transceiving equipment, 1-digital processing unit, 2-digital-to-analog conversion unit, 3-service transceiving channel, 4-antenna unit, 5-clock local oscillation circuit, 6-switch switching circuit, 7-switch combining circuit, 31-transmitting intermediate frequency circuit, 32-receiving intermediate frequency circuit, 33-local oscillation signal, 34-mixer, 35-filter, 36-power divider, 37-multichannel beam shaper, 38-mixing link, 39-equipment intermediate frequency port, 40-channel switch, 41-equipment local oscillation port, 71-combiner, 20-calibration device, 100-external mixing radiation link, 200-processor, 300-calibration mixing device, 400-calibration antenna, 500-calibration antenna console, 600-multichannel transceiving equipment console, 700-display unit, 800-vector network analyzer, 900-spectrum analyzer, 1000-signal source, 301-calibration intermediate frequency port, 302-calibration radio frequency port, 303-calibration port, 501-crystal oscillator, 502-reference clock, 503-analog phase-locked loop, 504-radio frequency loop, 505-local oscillation power divider, and millimeter wave divider.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

With the development of wireless communication technology, the spectrum of the low frequency band is crowded, and the spectrum of the high frequency band is abundant, so that the communication frequency band of the communication device gradually expands towards the high frequency.

Millimeter waves have wide application prospects in short-distance communication because of the short wavelength and wide frequency band, and can effectively solve a plurality of problems faced by high-speed broadband wireless access.

The multichannel transceiver, the calibration device, the system, the method and the electronic equipment provided by the embodiment of the application can be applied to millimeter wave systems.

The multi-channel transceiver device 10 is capable of receiving and transmitting radio frequency signals in multiple channels, the multi-channel transceiver device 10 includes a plurality of service transceiver channels 3 and a plurality of antenna units 4 correspondingly connected to the service transceiver channels 3, and the multi-channel transceiver device 10 includes a device intermediate frequency port 39.

The present application is described with respect to millimeter wave devices as examples. It is understood that the multi-channel transceiver apparatus 10 in the embodiment of the present application is not limited to the millimeter wave apparatus.

The millimeter wave device 2000 is shown in fig. 1, and comprises a digital processing unit 1, a digital-to-analog conversion unit 2, and a plurality of service transceiver channels 3, where the service transceiver channels 3 include an intermediate frequency link and a mixing link 38, and the service transceiver channels 3 are correspondingly connected to the antenna units 4, where the intermediate frequency link inputs or outputs an intermediate frequency signal, and the intermediate frequency link includes a transmitting intermediate frequency circuit 31 and a receiving intermediate frequency circuit 32, and the transmitting intermediate frequency circuit 31 or the receiving intermediate frequency circuit 32 may include intermediate frequency devices such as a filter 35, an amplifier, a BALUN (BALUN), and a power divider 36. The mixing link 38 may include a mixer 34, a filter 35, a power divider 36, and a multi-channel beamformer 37.

The millimeter wave device 2000 shown in fig. 1 has a workflow in which the digital processing unit 1 modulates data in a transmitting circuit, the digital-to-analog conversion unit 2 converts the digital signal into an analog signal in the data transmission process, the transmitting intermediate frequency circuit 31 performs operations such as filtering and amplifying the analog signal, and the mixing link 38 up-converts the processed intermediate frequency signal to a high frequency for transmission by the antenna unit 4. In the receiving circuit, the high-frequency signal received by the antenna unit 4 is down-converted to an intermediate frequency band by the mixer link 38, the receiving intermediate frequency circuit 32 processes the signal, the digital-to-analog conversion unit 2 converts the analog signal into a digital signal, and the digital processing unit 1 demodulates the digital signal to obtain data.

In order to ensure accurate synchronization of the traffic transceiving channels 3 of the millimeter wave device 2000, the millimeter wave device 2000 further comprises a clock local oscillator circuit 5. As shown in fig. 4, the clock local oscillation circuit 5 includes a crystal oscillator 501, an analog phase-locked loop 503, a radio frequency phase-locked loop 504, and a local oscillation power divider 505. The crystal oscillator 501 is used for generating an oscillation signal, outputting the oscillation signal to the analog phase-locked loop 503, then accessing the radio frequency phase-locked loop 504, and the signal coming out from the radio frequency phase-locked loop 504 reaches the local oscillator power divider 505 to be divided into multiple paths of same local oscillator signals 33, and each path of local oscillator signals 33 is respectively output to the mixing link 38, so that accurate synchronization of each path of service transceiver channels 3 is ensured. The analog phase locked loop 503 generates a reference clock 502, the reference clock 502 being provided to the digital processing unit 1 and the digital to analog conversion unit 2.

The embodiment of the application provides a multi-channel transceiver 10, a calibration system, a method and an electronic device, wherein an equipment intermediate frequency port 39 of a service transceiver channel 3 in the multi-channel transceiver 10 is connected with an external frequency mixing radiation link 100, so that an intermediate frequency circuit in a reference transceiver channel carries out radio frequency signal transceiving with an antenna unit 4 corresponding to the service transceiver channel 3 to be calibrated through the external frequency mixing radiation link 100, and the gain of the service transceiver channel 3 to be calibrated is determined by determining the power of a transmitting signal, the power of a receiving signal, the path loss of the external frequency mixing radiation link 100 and the calibration gain of the intermediate frequency circuit in the reference transceiver channel, and the service transceiver channel 3 to be calibrated is calibrated based on the gain; wherein the reference transceiving channel is the selected traffic transceiving channel 3.

In the practical calibration process of the multichannel transceiver 10, the scheme provided by the application does not need expensive high-frequency instrument intervention, the whole system is externally provided with an external frequency mixing radiation link 100, and the calibration of the service transceiver 3 can be realized by determining the power of a transmitting signal, the power of a receiving signal, the path loss of the external frequency mixing radiation link 100 and the calibration gain of an intermediate frequency circuit in a reference transceiver channel, so that the scheme is concise, the hardware requirement of the calibration is reduced, and the production calibration is facilitated.

In some embodiments, the local oscillation source adopted by the external mixing radiation link 100 is the local oscillation signal 33 inside the multi-channel transceiver device 10, and frequency synchronization of each service transceiver channel 3 can be achieved without adding additional hardware or a more complex synchronization scheme.

The frequency range of the intermediate frequency signal in the application can be 0-6 GHz, and the radio frequency signal can be more than 10GHz, such as 26GHz, 28GHz, 39GHz, 60GHz, 77GHz and the like, or higher.

The radio frequency signal referred to in the application is a signal obtained by mixing an intermediate frequency signal and a local oscillation signal.

The scheme provided by the embodiment of the application can be applied to the calibration of the multichannel transceiver equipment 10 in the high frequency band.

The present application will be described in detail below with reference to the drawings attached to the specification.

Embodiment one:

as shown in fig. 2, the multi-channel transceiver device 10 includes a plurality of service transceiver channels 3 and a plurality of antenna units 4 correspondingly connected to the service transceiver channels 3, and the multi-channel transceiver device 10 includes a device intermediate frequency port 39;

the equipment intermediate frequency port 39 is electrically connected with intermediate frequency circuits in the business receiving and transmitting channels 3 through a switch;

the device intermediate frequency port 39 is used for being connected with the external mixing radiation link 100, so that the intermediate frequency circuit in the reference transceiving channel performs radio frequency signal transceiving through the antenna unit 4 corresponding to the service transceiving channel 3 to be calibrated by the external mixing radiation link 100, and thus the gain of the service transceiving channel 3 to be calibrated is determined by determining the power of a transmitting signal, the power of a receiving signal, the path loss of the external mixing radiation link 100 and the calibration gain of the intermediate frequency circuit in the reference transceiving channel, and the service transceiving channel 3 to be calibrated is calibrated based on the gain; wherein the reference transceiving channel is the selected traffic transceiving channel 3.

The multi-channel transceiver 10 provided in this embodiment includes a plurality of service transceiver channels 3 including an intermediate frequency link and a mixing link 38, where the service transceiver channels 3 are correspondingly connected to the antenna units 4, and the intermediate frequency link includes a transmitting intermediate frequency circuit 31 and a receiving intermediate frequency circuit 32, and optionally, the mixing link 38 includes a mixer 34, a filter 35, a power divider 36, and a multi-channel beam shaper 37 that are sequentially connected.

As the multi-channel transceiver apparatus 10 shown in fig. 2, the traffic transceiver channel 3 includes a transmitting intermediate frequency circuit 31 and a receiving intermediate frequency circuit 32; the multi-channel transceiver 10 further comprises a switch switching circuit 6, wherein the switch switching circuit 6 has a switch moving point end and a switch fixed point end, the switch moving point end is respectively connected with the transmitting intermediate frequency circuit 31 and the receiving intermediate frequency circuit 32, and the switch fixed point end is connected with the device intermediate frequency port 39 for switching the transmitting intermediate frequency circuit 31 and the receiving intermediate frequency circuit 32.

In some embodiments, the transmitting intermediate frequency circuit 31 and the receiving intermediate frequency circuit 32 are further connected in series with a channel switch 40 for controlling the on-off of the transmitting intermediate frequency circuit 31 and the receiving intermediate frequency circuit 32, and alternatively, the channel switch 40 may be a single pole single throw switch or a single pole double throw switch.

As shown in the drawing of fig. 2, the switch moving point ends in the switch switching circuit 6 are connected to the moving point ends of the channel switch 40, respectively, and in other embodiments, the switch moving point ends in the switch switching circuit 6 may be directly connected to the transmitting intermediate frequency circuit 31 and the receiving intermediate frequency circuit 32, respectively.

The multi-channel transceiver device 10 shown in fig. 2 is provided with a device intermediate frequency port 39, which can be directly connected with a calibration device in a simple plug-in or screw-thread mode, and has flexibility.

The device intermediate frequency port 39 is convenient to be connected with the external mixing radiation link 100, and the calibration of the service receiving and transmitting channel 3 can be realized by determining the power of a transmitting signal, the power of a receiving signal, the path loss of the external mixing radiation link 100 and the calibration gain of an intermediate frequency circuit in a reference receiving and transmitting channel, so that the scheme is concise, the hardware requirement of the calibration is reduced, and the calibration is more facilitated.

The multi-channel transceiver 10 provided by the embodiment of the application is convenient for calibration, and can realize multi-channel information high-frequency signal transceiving.

In some embodiments, as shown in fig. 2, the multi-channel transceiver device 10 includes a device local oscillator port 41, where the device local oscillator port 41 is connected to the internal local oscillator signal 33 of the multi-channel transceiver device 10;

the device local oscillator port 41 is adapted to be coupled to the external mixed radiating link 100 to provide the local oscillator signal 33 to the external mixed radiating link 100.

Alternatively, the device local oscillator port 41 may be connected to the clock local oscillator circuit 5 for obtaining the local oscillator signal 33, and an example of the clock local oscillator circuit 5 may refer to fig. 4.

By setting the device local oscillation port 41, the external frequency mixing radiation link 100 can flexibly select the local oscillation source, so that the local oscillation signal 33 inside the multichannel transceiver device 10 can be conveniently accessed, or the local oscillation signal 33 inside the multichannel transceiver device 10 can be selected not to be adopted, the flexibility of selecting the external frequency mixing radiation link 100 and the suitability are improved, and the test calibration efficiency is improved.

Embodiment two:

as shown in fig. 3, the multi-channel transceiver apparatus 10 provided in this embodiment is different from the first embodiment in that the multi-channel transceiver apparatus 10 includes a switch combining circuit 7;

the switch combining circuit 7 comprises a switch switching circuit 6 and a combiner 71, the switch switching circuit 6 is provided with a switch moving point end and a switch fixed point end, the switch moving point end is respectively connected with the transmitting intermediate frequency circuit 31 and the receiving intermediate frequency circuit 32, and the switch fixed point end is connected with the combiner 71;

the combiner 71 is configured to combine an output signal of any one of the transmitting intermediate frequency circuit 31 or the receiving intermediate frequency circuit 32 with the local oscillation signal 33 to form a path, and output the path to the intermediate frequency port 39 of the device, or split a signal received by the intermediate frequency port 39 of the device into two paths of signals, where one path of signal is connected to the switch moving point end, and the other path of signal obtains the local oscillation signal 33; wherein the local oscillator signal 33 is an internal local oscillator signal 33 of the multi-channel transceiver apparatus 10.

In this embodiment, the connection manner of the switching point terminal of the switching switch of the switching circuit 6 can refer to the second embodiment, and the switching point terminal is connected to the combiner 71.

The multichannel transceiver 10 provided in this embodiment generates the intermediate frequency signal based on the local oscillator signal 33, so that the external calibration mixer 300 can achieve accurate synchronization, the external calibration device is not required to set clock synchronization, the calibration efficiency is improved, and the calibration process is simplified.

In some embodiments, when the intermediate frequency signal of the multi-channel transceiver 10 and the local oscillation signal 33 have a frequency point close to or different from each other, which results in difficulty in designing the combiner 71 in fig. 3, the system may consider that two rf cables are used to respectively lead out the intermediate frequency signal and the local oscillation signal 33, and output the intermediate frequency signal and the local oscillation signal to the external calibration mixer 300.

Embodiment III:

as shown in fig. 5, the present embodiment provides a calibration device 20 for calibrating a multi-channel transceiver 10, where the multi-channel transceiver 10 includes a plurality of service transceiver channels 3 and a plurality of antenna units 4 correspondingly connected to the service transceiver channels 3, and the multi-channel transceiver 10 includes an intermediate frequency port 39; the equipment intermediate frequency port 39 is electrically connected with intermediate frequency circuits in the business receiving and transmitting channels 3 through a switch;

the calibration device 20 comprises an external mixed radiation link 100 and a processor 200;

the external mixing radiation link 100 is used for connecting with the equipment intermediate frequency port 39, so that the intermediate frequency circuit in the reference transceiving channel can transmit and receive radio frequency signals with the antenna unit 4 corresponding to the service transceiving channel 3 to be calibrated through the external mixing radiation link 100;

a processor 200, configured to determine a gain of the traffic transceiving channel 3 to be calibrated by determining a power of a transmit signal, a power of a receive signal, a path loss of the external mixed-radiation link 100, and a calibration gain of an intermediate frequency circuit in the reference transceiving channel, and calibrate the traffic transceiving channel 3 to be calibrated based on the gain; wherein the reference transceiving channel is the selected traffic transceiving channel 3.

In the actual calibration process of the multi-channel transceiver 10, the calibration device 20 provided by the application does not need expensive high-frequency instrument intervention, the whole calibration device 20 is externally provided with an external frequency mixing radiation link 100, and the calibration of the service transceiver 3 can be realized by determining the power of a transmitting signal, the power of a receiving signal, the path loss of the external frequency mixing radiation link 100 and the calibration gain of an intermediate frequency circuit in a reference transceiver channel, so that the scheme is simple, the hardware requirement is low, and the applicability is better.

Embodiment four:

as shown in fig. 6, in this embodiment, a calibration device 20 is provided in accordance with a fourth embodiment, and an external mixed radiation link 100 is provided with:

calibration mixing means 300, the calibration mixing means 300 being connected to the device intermediate frequency port 39;

the calibration antenna 400, the calibration mixing device 300 performs radio frequency signal transceiving through the antenna unit 4 corresponding to the service transceiving channel 3 to be calibrated by the calibration antenna 400;

the calibration mixing device 300 is used for performing mixing processing based on an intermediate frequency signal or a radio frequency signal transmitted by the intermediate frequency port 39 of the device.

In some embodiments, the calibration mixing device 300 has a calibration radio frequency port 302 and a calibration intermediate frequency port 301;

The calibration intermediate frequency port 301 is connected to the device intermediate frequency port 39 and the calibration radio frequency port 302 is connected to the calibration antenna 400.

In other embodiments, the calibration mixing device 300 further includes a calibration local oscillator port 303, where the calibration local oscillator port 303 is connected to the internal local oscillator signal 33 of the multi-channel transceiver apparatus 10.

Fifth embodiment:

as shown in fig. 7, the present embodiment provides a calibration system including:

a multi-channel transceiver device 10, wherein the multi-channel transceiver device 10 comprises a plurality of service transceiver channels 3 and a plurality of antenna units 4 correspondingly connected with the service transceiver channels 3, and the multi-channel transceiver device 10 comprises a device intermediate frequency port 39; the equipment intermediate frequency port 39 is electrically connected with intermediate frequency circuits in the business receiving and transmitting channels 3 through a switch; the device intermediate frequency port 39 is used for connecting with an external mixing radiation link 100;

a calibration device 20, wherein the calibration device 20 is used for calibrating the multi-channel transceiver 10;

The calibration system provided by the embodiment of the application has the advantages of simple environment networking, no dependence on high-performance instruments such as ultra-large bandwidth, ultra-high frequency signal sources/spectrometers and the like in the whole production calibration process, low system hardware performance requirements and contribution to popularization.

It will be appreciated by those skilled in the art that the calibration system provided by the embodiments of the present application, wherein specific embodiments of the multi-channel transceiver apparatus 10 and the calibration device 20 may refer to the above-described embodiments. This embodiment will not be described.

In some embodiments, the internal local oscillator signal 33 is led out through the device local oscillator port 41 provided by the multichannel transceiver device 10, and the frequency synchronization can be achieved by connecting the device local oscillator port 41 through the calibration local oscillator port 303 on the calibration device, so that the calibration system provided by the embodiment of the application does not need a complex frequency synchronization scheme, and the multichannel transceiver device 10 and the external calibration device 20 only need to share the local oscillator signal.

In some embodiments, the multichannel transceiver 10 is internally provided with a switch combining circuit 7, wherein by designing a combiner 71, the combiner 71 connects the intermediate frequency signal of the reference transceiver channel and the local oscillator signal 33, and the intermediate frequency and the clock signal are led out through the combiner 71, so that only one cable needs to be led out to connect with the calibration device 20.

Embodiment six:

on the basis of the fifth embodiment, as shown in fig. 8, the calibration mixing device 300 is connected to the equipment intermediate frequency port 39, and the calibration mixing device 300; the calibration antenna 400, the calibration mixing device 300 performs radio frequency signal transceiving through the antenna unit 4 corresponding to the service transceiving channel 3 to be calibrated by the calibration antenna 400; the calibration mixing device 300 is used for performing mixing processing based on an intermediate frequency signal or a radio frequency signal transmitted by the intermediate frequency port 39 of the device.

The calibration system provided in this embodiment further includes a calibration antenna console 500, the calibration antenna 400 is disposed on the calibration antenna console 500, the calibration antenna console 500 is connected to the processor 200, and the processor 200 is configured to control the calibration antenna console 500 to move the calibration antenna 400 in the directions of the planar X-axis and the Y-axis.

In some embodiments, the calibration system further comprises a multi-channel transceiver station 600, the multi-channel transceiver 10 being disposed on the multi-channel transceiver station 600, the multi-channel transceiver station 600 being coupled to the processor 200, the processor 200 being configured to control the multi-channel transceiver station 600 to move the multi-channel transceiver 10 in the planar X-axis and Y-axis directions.

The movement of the multi-channel transceiver device 10, or the movement of the calibration antenna 400, may be achieved by the processor 200 controlling the calibration antenna console 500 and the multi-channel transceiver device console 600 when calibrating the different channels.

In a specific embodiment, the calibration antenna console 500 and the multi-channel transceiver console 600 may include a table top, a screw rod mechanism and a linkage mechanism, the calibration antenna console 500 and the multi-channel transceiver console 600 may be disposed on the table top, the table top may be further provided with a screw rod nut mechanism of an X axis and a screw rod nut mechanism of a Y axis, the nuts may move along the axis direction of the screw rod, the screw rod is connected with the transmission mechanism, and the processor 200 controls the transmission mechanism to output power.

In some embodiments, the calibration system further includes a display unit 700, where the display unit 700 is electrically connected to the processor 200, and is configured to receive and display data of the processor 200.

Alternatively, the display unit 700 may include, but is not limited to, one of a liquid crystal display module, an organic light emitting display module, and a Micro-LED display module.

The display unit 700 may be directly connected to the processor 200, and driven by the processor 200 to implement display, but is not limited to this connection manner. For example, the display unit 700 may be communicatively coupled to the processor 200 via a network and/or a bluetooth module, etc.

Embodiment seven:

the present embodiment provides a method for calibrating a multichannel transceiver device, as shown in fig. 14, where the method is used for calibrating a multichannel transceiver device 10, the multichannel transceiver device 10 includes a plurality of service transceiver channels 3 and a plurality of antenna units 4 correspondingly connected to the service transceiver channels 3, the multichannel transceiver device 10 includes a device intermediate frequency port 39, and the device intermediate frequency port 39 is electrically connected to an intermediate frequency circuit in each service transceiver channel 3 through a switch;

the method comprises the following steps:

selecting a reference transceiving channel from the service transceiving channels 3;

electrically connecting the equipment intermediate frequency port 39 with an intermediate frequency circuit in the reference transceiving channel through a switch;

connecting the equipment intermediate frequency port 39 with the external mixing radiation link 100 so that the intermediate frequency circuit in the reference receiving and transmitting channel can receive and transmit radio frequency signals through the external mixing radiation link 100 and the antenna unit 4 corresponding to the service receiving and transmitting channel 3 to be calibrated;

The gain of the traffic transceiver channel 3 to be calibrated is determined by determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixed radiation link 100 and the nominal gain of the intermediate frequency circuit within the reference transceiver channel, and the traffic transceiver channel 3 to be calibrated is calibrated based on the gain.

In a specific embodiment, the gain of the traffic transceiving channel 3 to be calibrated is expressed as follows:

Pc＝Pr-Pt-Loss_cl-Pref；

where Pc is the gain of the traffic transceiver channel 3 to be calibrated, pr is the power of the received signal, pt is the power of the transmitted signal, loss_cl is the path Loss of the external mixed-frequency radiation link 100, and Pref is the nominal gain of the intermediate frequency circuit in the reference transceiver channel.

The calibration method is described in detail below in conjunction with fig. 9 and 10.

In the embodiment shown in fig. 9, the calibration method includes calibrating a traffic transmission channel to be calibrated, and specifically includes:

selecting a reference receiving channel from the service receiving and transmitting channels 3;

connecting the intermediate frequency circuit in the reference receiving channel to the intermediate frequency port 39 of the equipment; connecting the device intermediate frequency port 39 to an external mixing radiation link 100;

switching the service receiving and transmitting channel 3 into a service transmitting channel to be calibrated;

transmitting a signal at the point A, wherein the power of the transmitted signal is Pa, the transmitted signal passes through a service transmitting channel to be calibrated, then passes through a corresponding antenna unit 4 to the point B, passes through an external mixing radiation link 100 to the point C, performs radio frequency signal receiving and transmitting by referring to an intermediate frequency circuit in a receiving channel, and refers to the power Pd of the received signal at the point D by the receiving channel;

Determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixed radiation link 100 and the calibration gain of the intermediate frequency circuit of the reference receiving channel, and determining the gain of the service transmitting channel to be calibrated according to the calibration gain; and calibrating the service transmitting channel to be calibrated based on the gain.

In a specific embodiment, the expression of the gain of the traffic transmission channel to be calibrated is as follows:

Pab＝Pd-Pa-Loss-Prx_ref；

where Pab is the gain of the service transmission channel to be calibrated, pd is the power of the received signal, pa is the power of the transmitted signal, loss is the path Loss of the external mixed-frequency radiation link 100, i.e. from point B to point C, prx_ref is the calibration gain of the reference receiving channel intermediate frequency circuit from point C to point D, and the gain of the transmission link a-B (i.e. the service transmission channel to be calibrated) of the multi-channel transceiver 10 can be obtained by calibration of the expression.

In the embodiment shown in fig. 10, the calibration method includes calibrating a service receiving channel to be calibrated, and specifically includes:

selecting a reference transmitting channel from the service receiving and transmitting channels 3;

connecting an intermediate frequency circuit in a reference transmitting channel with an intermediate frequency port 39 of equipment; connecting the device intermediate frequency port 39 to an external mixing radiation link 100;

switching the service receiving channel 3 into a service receiving channel to be calibrated;

Transmitting a signal at the point D, wherein the power of the transmitted signal is Pd, the signal reaches the point C through an intermediate frequency circuit in a reference transmitting channel, and then the signal passes through an external mixing radiation link 100 to the point B, and the antenna unit 4 corresponding to a service receiving channel to be calibrated carries out radio frequency signal receiving and transmitting; the service receiving channel to be calibrated receives the power Pa of the signal at the point A;

determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixed radiation link 100 and the calibration gain of the intermediate frequency circuit of the reference transmission channel, and determining the gain of the service receiving channel to be calibrated according to the calibration gain; and calibrating the service receiving channel to be calibrated based on the gain.

In a specific embodiment, the expression of the gain of the service receiving channel to be calibrated is as follows:

Pba＝Pa ^’ -Pd ^’ -Loss ^’ -Ptx_ref；

wherein Pba is the gain of the service receiving channel to be calibrated, pa ^’ Pd for receiving the power of the signal ^’ To transmit the power of the signal, loss ^’ For the path loss of the external mixed-radiation link 100, i.e., point C to point B, ptx_ref is the nominal gain of the reference transmit path intermediate frequency circuit, point D to point C.

The gain of the receiving link B-ase:Sub>A of the multi-channel transceiver device 10 (i.e. the traffic receiving channel to be calibrated) can be calibrated by this expression.

Based on the above flow, the transmitting values of the frequency points are traversed through different service transceiving channels 3 of the multichannel transceiving equipment 10, and calibration is completed.

In some embodiments, the calibration environment data is needed, as shown in fig. 11, that is, the path loss from the point B to the point C of the external mixing radiation link 100 is obtained, when the environment data is calibrated, the calibration antenna 400 may use a standard gain horn, and the vector network analyzer 800 may be used to calibrate the loss in the required frequency band for the path loss of the BC segment, and the direction of the calibration mixing device 300 may be set to transmit or receive according to the calibration requirement.

Because the external mixing radiation link 100 is in an external environment, the scheme provided by the application only needs to be used for the vector network analyzer 800 when external environment data are calibrated, long-term occupation is not needed, and the vector network analyzer 800 cannot be used after the environment is stable.

The calibration gain of the intermediate frequency circuit in the reference receiving and transmitting channel comprises the calibration gain of the intermediate frequency circuit in the reference transmitting channel and the calibration gain of the intermediate frequency circuit in the reference receiving channel;

in some embodiments, the method for determining the calibration gain of the intermediate frequency circuit in the reference transmit channel is as follows:

As shown in fig. 12, an intermediate frequency signal is output by connecting an intermediate frequency circuit (such as the transmitting intermediate frequency circuit 31 in fig. 12) in a reference transmitting channel to an intermediate frequency port 39 of the device; with reference to the transmit channel transmit signal, spectrometer 900 measures the power of the received signal at device intermediate frequency port 39; and determining the calibration gain of the intermediate frequency circuit in the reference transmission channel according to the power of the transmission signal and the power of the receiving signal.

Because the signal received by the spectrometer 900 is an intermediate frequency signal in the intermediate frequency circuit, which is not a high frequency signal before mixing, a high-frequency and large-bandwidth instrument is not needed, and the calibration gain of the internal intermediate frequency circuit of the reference transceiver channel can be measured only by adopting an instrument with low price and low frequency.

As shown in fig. 13, the method for determining the calibration gain of the intermediate frequency circuit in the reference receiving channel is as follows:

connecting the intermediate frequency circuit (receiving intermediate frequency circuit 32 as described in fig. 13) in the reference receiving channel to the device intermediate frequency port 39; signal source 1000 transmits a signal at device intermediate frequency port 39;

measuring the power of the signal received by the reference receiving channel; and determining the calibration gain of the intermediate frequency circuit of the reference receiving channel according to the power of the transmitting signal and the power of the receiving signal.

The signal source 1000 may be a low frequency signal source.

In some embodiments, in the calibration method, the local oscillator source of the external mixed radiation link 100 adopts the internal local oscillator signal 33 of the multichannel transceiver device 10, and no complex synchronization circuit is needed, so that the effects of high calibration efficiency and high synchronization precision can be achieved.

The embodiment of the application also provides electronic equipment, which comprises a processor and a memory; the memory is used for storing operation instructions; the processor is used for executing the multi-channel transceiver device calibration method by calling the operation instruction.

The foregoing is merely exemplary of embodiments of the present application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Claims

1. A multi-channel transceiver device (10), wherein the multi-channel transceiver device (10) comprises a plurality of service transceiver channels (3) and a plurality of antenna units (4) correspondingly connected with the service transceiver channels (3), and the multi-channel transceiver device (10) comprises a device intermediate frequency port (39);

the equipment intermediate frequency port (39) is electrically connected with the intermediate frequency circuit in each service receiving and transmitting channel (3) through a switch;

the device intermediate frequency port (39) is used for being connected with an external mixing radiation link (100) so as to enable an intermediate frequency circuit in a reference transceiving channel to transmit and receive radio frequency signals through the external mixing radiation link (100) and the antenna unit (4) corresponding to the service transceiving channel (3) to be calibrated, thereby determining the gain of the service transceiving channel (3) to be calibrated by determining the power of a transmitting signal, the power of a receiving signal, the path loss of the external mixing radiation link (100) and the calibration gain of the intermediate frequency circuit in the reference transceiving channel and calibrating the service transceiving channel (3) to be calibrated based on the gain; wherein the reference transceiving channel is the selected service transceiving channel (3).

2. The multi-channel transceiver apparatus (10) of claim 1, wherein,

the service receiving and transmitting channel (3) comprises a transmitting intermediate frequency circuit (31) and a receiving intermediate frequency circuit (32);

the multichannel transceiver (10) further comprises a switch switching circuit (6), the switch switching circuit (6) is provided with a switch moving point end and a switch fixed point end, the switch moving point end is respectively connected with the transmitting intermediate frequency circuit (31) and the receiving intermediate frequency circuit (32), and the switch fixed point end is connected with the equipment intermediate frequency port (39) and used for switching the transmitting intermediate frequency circuit (31) and the receiving intermediate frequency circuit (32).

3. The multi-channel transceiver apparatus (10) of claim 1, wherein,

the service receiving and transmitting channel (3) further comprises a transmitting intermediate frequency circuit (31) and a receiving intermediate frequency circuit (32);

the multichannel transceiver device (10) further comprises a switch combining circuit (7);

the switch combining circuit (7) comprises a switch switching circuit (6) and a combiner (71), the switch switching circuit (6) is provided with a switch moving point end and a switch fixed point end, the switch moving point end is respectively connected with the transmitting intermediate frequency circuit (31) and the receiving intermediate frequency circuit (32), and the switch fixed point end is connected with the combiner (71);

The combiner (71) is configured to combine an output signal of any one of the transmitting intermediate frequency circuit (31) or the receiving intermediate frequency circuit (32) with a local oscillator signal (33) to output the combined signal to the equipment intermediate frequency port (39), or split a signal received by the equipment intermediate frequency port (39) into two signals, where one signal is connected to the fixed point end of the switch, and the other signal obtains the local oscillator signal (33);

wherein the local oscillator signal (33) is an internal local oscillator signal of the multichannel transceiver device (10).

4. The multi-channel transceiver apparatus (10) of claim 1, wherein,

the multichannel transceiver device (10) comprises a device local oscillation port (41), and the device local oscillation port (41) is connected with an internal local oscillation signal (33) of the multichannel transceiver device (10);

the device local oscillator port (41) is configured to connect with the external mixed radiating link (100) to provide the local oscillator signal (33) to the external mixed radiating link (100).

5. Calibration device (20) characterized by being used for calibrating a multi-channel transceiver device (10), wherein the multi-channel transceiver device (10) comprises a plurality of service transceiver channels (3) and a plurality of antenna units (4) correspondingly connected with the service transceiver channels (3), and the multi-channel transceiver device (10) comprises a device intermediate frequency port (39); the equipment intermediate frequency port (39) is electrically connected with the intermediate frequency circuit in each service receiving and transmitting channel (3) through a switch;

The calibration device (20) comprises an external mixed radiation link (100) and a processor (200);

the external mixing radiation link (100) is used for being connected with the equipment intermediate frequency port (39) so that an intermediate frequency circuit in a reference receiving and transmitting channel can receive and transmit radio frequency signals through the external mixing radiation link (100) and the antenna unit (4) corresponding to the service receiving and transmitting channel (3) to be calibrated;

-the processor (200) is configured to determine a gain of the traffic transceiving channel (3) to be calibrated by determining a power of a transmit signal, a power of a receive signal, a path loss of the external mixed-radiation link (100) and a calibration gain of an intermediate frequency circuit within the reference transceiving channel, and to calibrate the traffic transceiving channel (3) to be calibrated based on the gain; wherein the reference transceiving channel is the selected service transceiving channel (3).

6. The calibration device (20) according to claim 5, wherein the external mixed radiation link (100) is provided with:

-calibration mixing means (300), said calibration mixing means (300) being connected to said device intermediate frequency port (39);

A calibration antenna (400), wherein the calibration mixing device (300) performs radio frequency signal transceiving through the antenna unit (4) corresponding to the service transceiving channel (3) to be calibrated by the calibration antenna (400);

wherein the calibration mixing device (300) is used for performing mixing processing based on an intermediate frequency signal or the radio frequency signal transmitted by the equipment intermediate frequency port (39).

7. The calibration device (20) according to claim 6, wherein,

the calibration mixing means (300) has a calibration intermediate frequency port (301) and a calibration radio frequency port (302);

the calibration intermediate frequency port (301) is connected with the device intermediate frequency port (39), and the calibration radio frequency port (302) is connected with the calibration antenna (400).

8. The calibration apparatus (20) of claim 7, wherein said calibration mixing means (300) further comprises a calibration local oscillator port (303), said calibration local oscillator port (303) being coupled to an internal local oscillator signal (33) of said multi-channel transceiver device (10).

9. A calibration system, comprising:

a multi-channel transceiver device (10), wherein the multi-channel transceiver device (10) comprises a plurality of service transceiver channels (3) and a plurality of antenna units (4) correspondingly connected with the service transceiver channels (3), and the multi-channel transceiver device (10) comprises a device intermediate frequency port (39); the equipment intermediate frequency port (39) is electrically connected with the intermediate frequency circuit in each service receiving and transmitting channel (3) through a switch; the device intermediate frequency port (39) is used for being connected with an external frequency mixing radiation link (100);

-calibration means (20), said calibration means (20) being adapted for calibration of said multi-channel transceiver device (10);

10. The calibration system according to claim 9, characterized in that the external mixed radiation link (100) is provided with: -calibration mixing means (300), said calibration mixing means (300) being connected to said device intermediate frequency port (39); a calibration antenna (400), wherein the calibration mixing device (300) performs radio frequency signal transceiving through the antenna unit (4) corresponding to the service transceiving channel (3) to be calibrated by the calibration antenna (400); wherein the calibration mixing device (300) is used for performing mixing processing based on an intermediate frequency signal or the radio frequency signal transmitted by the equipment intermediate frequency port (39);

The system further comprises a calibration antenna console (500), the calibration antenna (400) is arranged on the calibration antenna console (500), the calibration antenna console (500) is connected with the processor (200), and the processor (200) is further used for controlling the calibration antenna console (500) to enable the calibration antenna (400) to move in the directions of the plane X axis and the plane Y axis.

11. The calibration system of claim 9, further comprising a multi-channel transceiver station (600), the multi-channel transceiver (10) being disposed on the multi-channel transceiver station (600), the multi-channel transceiver station (600) being coupled to the processor (200), the processor (200) further configured to control the multi-channel transceiver station (600) to move the multi-channel transceiver (10) in the planar X-axis and Y-axis directions.

12. The calibration system of claim 9, further comprising a display unit (700), the display unit (700) being electrically connected to the processor (200), the display unit (700) being configured to receive and display data from the processor (200).

13. The multi-channel transceiving equipment calibration method is characterized by being used for calibrating multi-channel transceiving equipment (10), wherein the multi-channel transceiving equipment (10) comprises a plurality of service transceiving channels (3) and a plurality of antenna units (4) correspondingly connected with the service transceiving channels (3), the multi-channel transceiving equipment (10) comprises equipment intermediate frequency ports (39), and the equipment intermediate frequency ports (39) are electrically connected with intermediate frequency circuits in the service transceiving channels (3) through switches;

the method comprises the following steps:

selecting a reference transceiving channel from the service transceiving channels (3);

electrically connecting the equipment intermediate frequency port (39) with an intermediate frequency circuit in the reference transceiving channel through a switch;

connecting the equipment intermediate frequency port (39) with an external frequency mixing radiation link (100) so that an intermediate frequency circuit in the reference transceiving channel can transmit and receive radio frequency signals through the external frequency mixing radiation link (100) and the antenna unit (4) corresponding to the service transceiving channel (3) to be calibrated;

-determining the gain of the traffic transceiving channel (3) to be calibrated by determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixed radiation link (100) and the nominal gain of the intermediate frequency circuit within the reference transceiving channel, and-calibrating the traffic transceiving channel (3) to be calibrated based on said gain.

14. The method according to claim 13, characterized in that connecting the device intermediate frequency port (39) to the external mixing radiation link (100), in particular comprises:

the external mixing radiation link (100) is provided with a calibration mixing device (300) and a calibration antenna (400);

-connecting said device intermediate frequency port (39) to a calibration mixing means (300);

the calibration mixing device (300) performs radio frequency signal transceiving through the antenna unit (4) corresponding to the service transceiving channel (3) to be calibrated by the calibration antenna (400).

15. The method of calibrating a multi-channel transceiver of claim 13 wherein the nominal gain of the intermediate frequency circuit in the reference transceiver channel comprises a nominal gain of the intermediate frequency circuit in the reference transmit channel and a nominal gain of the intermediate frequency circuit in the reference receive channel;

the method for determining the calibration gain of the intermediate frequency circuit in the reference transmitting channel comprises the following steps:

connecting an intermediate frequency circuit in the reference transmitting channel with an intermediate frequency port (39) of the equipment to output an intermediate frequency signal;

the reference transmission channel transmits signals;

a spectrometer (900) measures the power of the received signal at the device intermediate frequency port (39);

Determining the calibration gain of the intermediate frequency circuit in the reference transmitting channel according to the power of the transmitting signal and the power of the receiving signal;

the method for determining the calibration gain of the intermediate frequency circuit in the reference receiving channel comprises the following steps:

connecting an intermediate frequency circuit in the reference receiving channel to the equipment intermediate frequency port (39);

a signal source (1000) transmits a signal at the device intermediate frequency port (39);

16. The method of calibrating a multi-channel transceiver device of claim 13 characterized in that the path loss of the external mixed-radiation link (100) is measured with a vector network analyzer (800).

17. The method for calibrating a multi-channel transceiver device according to claim 13, wherein the method comprises calibrating a service receiving channel to be calibrated, and specifically comprises:

selecting a reference transmitting channel from the service receiving and transmitting channels (3);

connecting an intermediate frequency circuit in the reference transmission channel to the equipment intermediate frequency port (39); -connecting the device intermediate frequency port (39) to an external mixed frequency radiating link (100);

Switching the service receiving channel (3) to the service receiving channel to be calibrated;

the intermediate frequency circuit in the reference transmitting channel carries out radio frequency signal receiving and transmitting through the external frequency mixing radiation link (100) and the antenna unit (4) corresponding to the service receiving channel to be calibrated;

determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixed radiation link (100) and the calibration gain of the reference transmission channel intermediate frequency circuit, and determining the gain of the service receiving channel to be calibrated according to the calibration gain; and calibrating the service receiving channel to be calibrated based on the gain.

18. The method for calibrating a multi-channel transceiver device according to claim 13, wherein the method comprises calibrating a traffic transmission channel to be calibrated, and specifically comprises:

selecting a reference receiving channel from the service receiving and transmitting channels (3);

connecting an intermediate frequency circuit in the reference receiving channel to the equipment intermediate frequency port (39); -connecting the device intermediate frequency port (39) to an external mixed frequency radiating link (100);

switching a service receiving and transmitting channel (3) to the service transmitting channel to be calibrated;

The service transmitting channel to be calibrated carries out radio frequency signal transceiving with an intermediate frequency circuit in the reference receiving channel through the corresponding antenna unit (4) through the external frequency mixing radiation link (100);

determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixed radiation link (100) and the calibration gain of the intermediate frequency circuit of the reference receiving channel, and determining the gain of the service transmitting channel to be calibrated according to the calibration gain; and calibrating the service transmitting channel to be calibrated based on the gain.

19. The method of calibrating a multi-channel transceiver apparatus of claim 13 wherein,

the local oscillator source of the external mixing radiation link (100) adopts an internal local oscillator signal (33) of the multichannel transceiver device (10).

20. The method of calibrating a multi-channel transceiver device according to claim 13, characterized in that the gains of the traffic transceiver channels (3) to be calibrated are expressed as follows:

Pc=Pr-Pt-Loss_cl-Pref;

wherein ,Pcfor the gain of the traffic transceiving channel (3) to be calibrated,Prfor the power of the received signal,Ptfor the power of the transmitted signal,Loss_clfor the path loss of the external mixed radiating link (100), PrefAnd calibrating gain of the intermediate frequency circuit in the reference receiving and transmitting channel.

21. An electronic device, comprising a processor and a memory, wherein the memory is configured to store operation instructions, and the processor is configured to execute the multi-channel transceiver calibration method according to any one of claims 13-20 by invoking the operation instructions.