CN112637941B - Out-of-band radiation adjustment system and method for airborne electromagnetic wave equipment - Google Patents
Out-of-band radiation adjustment system and method for airborne electromagnetic wave equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
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- H04W52/146—Uplink power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses an out-of-band radiation adjusting system of airborne electromagnetic wave equipment, which can simulate a maximum power analog signal which can be demodulated by interfered electromagnetic wave equipment through analog equipment; the white noise generator which is simultaneously started is matched, the maximum interference power which can be borne by the interfered electromagnetic wave equipment can be determined on the premise that the communication performance of the interfered electromagnetic wave equipment is not influenced according to the output power of the white noise generator and the gain amplitude of the amplitude regulator, so that the transmitting power of the electromagnetic wave transmitting equipment can be adjusted according to the power, and the adjustment of the out-of-band radiation of the airborne electromagnetic wave equipment can be quickly and accurately realized. The invention also provides an out-of-band radiation adjusting method for the airborne electromagnetic wave equipment, and the method also has the beneficial effects.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an out-of-band radiation adjusting system and method for airborne electromagnetic equipment.
Background
With the continuous progress of science and technology and the continuous development of society, the Beidou equipment is more and more widely applied to the daily life of people. The Beidou equipment is terminal equipment which carries out positioning and navigation by utilizing a Beidou satellite navigation system, the airborne Beidou equipment is used for positioning the airplane in the airplane flying process, and the Beidou equipment belongs to electromagnetic wave equipment.
At the present stage, the airborne equipment is provided with other electromagnetic wave equipment besides the Beidou equipment, and when the electromagnetic wave equipment works, interference can occur between the two electromagnetic wave equipment. For this case, it is common in the prior art that two electromagnetic wave devices do not operate simultaneously to prevent interference between the electromagnetic wave devices. In practical situations, interference usually occurs between electromagnetic wave devices after high-power radiation, so how to quickly and accurately adjust out-of-band radiation of airborne electromagnetic wave devices is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide an out-of-band radiation adjusting system for airborne electromagnetic wave equipment, which can quickly and accurately adjust the out-of-band radiation of the airborne electromagnetic wave equipment; the invention also aims to provide an out-of-band radiation adjusting method for airborne electromagnetic wave equipment, which can quickly and accurately realize the adjustment of the out-of-band radiation of the airborne electromagnetic wave equipment.
In order to solve the technical problem, the invention provides an out-of-band radiation adjusting system for airborne electromagnetic wave equipment, which comprises electromagnetic wave transmitting equipment, analog equipment, an attenuator, a white noise generator, an amplitude regulator, a combiner and interfered electromagnetic wave equipment;
the combiner comprises an output end and at least two input ends, the output end of the combiner is connected with the interference electromagnetic wave equipment, the analog equipment is connected with one input end of the combiner through the attenuator, and the white noise generator is connected with the other input end of the combiner through the amplitude adjuster;
the analog device is used for sending an analog signal to the interfered electromagnetic wave device, and the attenuator is used for adjusting an attenuation value to enable the analog signal to reach the maximum power of the interfered electromagnetic wave device capable of demodulating the analog signal when the white noise generator is turned off;
the white noise generator is used for sending a white noise signal to the interfered electromagnetic wave equipment when the interfered electromagnetic wave equipment is kept to receive a maximum power analog signal capable of being demodulated; the amplitude regulator is used for adjusting the gain amplitude of the white noise signal to enable the white noise signal to reach the maximum power of the interfered electromagnetic wave equipment capable of demodulating the analog signal;
the electromagnetic wave transmitting equipment is used for adjusting the transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator and the isolation between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment.
Optionally, the attenuator is specifically configured to:
and adjusting the attenuation value from high to low to enable the analog signal to reach the maximum power of the interfered electromagnetic wave device capable of demodulating the analog signal.
Optionally, the amplitude adjuster is specifically configured to:
and adjusting the gain amplitude of the white noise signal from low to high to enable the white noise signal to reach the maximum power of the interfered electromagnetic wave equipment capable of demodulating the analog signal.
Optionally, the white noise generator is an electrically tunable filter connected to a white noise device, or a vector signal source.
Optionally, the electromagnetic wave emitting device is specifically configured to:
determining the initial transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator and the isolation between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment;
and transmitting an electromagnetic signal by using the initial transmitting power, and adjusting the transmitting power of the electromagnetic wave transmitting equipment to reach the actual transmitting power when the interfered electromagnetic wave equipment under the preset isolation is interfered.
The invention also provides an out-of-band radiation adjusting method for the airborne electromagnetic wave equipment, which comprises the following steps:
sending an analog signal to the interfered electromagnetic wave equipment through analog equipment; the analog equipment is connected with one input end of a combiner through an attenuator, the output end of the combiner is connected with the interference electromagnetic wave equipment, and the other input end of the combiner is connected with a white noise generator through an amplitude regulator;
when the white noise generator is turned off through the attenuator, adjusting an attenuation value to enable the analog signal to reach the maximum power at which the interfered electromagnetic wave equipment can demodulate the analog signal;
sending a white noise signal to the interfered electromagnetic wave equipment when the interfered electromagnetic wave equipment is kept to receive a maximum power analog signal which can be demodulated through a white noise generator;
adjusting the gain amplitude of the white noise signal through an amplitude adjuster to enable the white noise signal to reach the maximum power of the interfered electromagnetic wave equipment capable of demodulating the analog signal;
and adjusting the transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator and the isolation between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment.
Optionally, when the white noise generator is turned off, the adjusting the attenuation value to make the analog signal reach the maximum power at which the interfered electromagnetic wave device can demodulate the analog signal by the attenuator includes:
when the white noise generator is turned off, the attenuator adjusts the attenuation value from high to low, so that the analog signal reaches the maximum power at which the interfered electromagnetic wave equipment can demodulate the analog signal.
Optionally, the adjusting, by the amplitude adjuster, the gain amplitude of the white noise signal to make the white noise signal reach the maximum power at which the interfered electromagnetic wave device can demodulate the analog signal includes:
and adjusting the gain amplitude of the white noise signal from low to high through an amplitude adjuster to enable the white noise signal to reach the maximum power at which the interfered electromagnetic wave equipment can demodulate the analog signal.
Optionally, the white noise generator is an electrically tunable filter connected to a white noise device, or a vector signal source.
Optionally, the adjusting the transmission power of the electromagnetic wave transmitting device according to the gain amplitude, the output power of the white noise generator, and the isolation between the electromagnetic wave transmitting device and the interfered electromagnetic wave device includes:
determining the initial transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator and the isolation between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment;
and transmitting an electromagnetic signal by the initial transmitting power, and adjusting the transmitting power of the electromagnetic wave transmitting equipment to reach the actual transmitting power when the interfered electromagnetic wave equipment under the preset isolation is interfered.
The invention provides an out-of-band radiation adjusting system for airborne electromagnetic wave equipment, which comprises electromagnetic wave transmitting equipment, analog equipment, an attenuator, a white noise generator, an amplitude regulator, a combiner and interfered electromagnetic wave equipment, wherein the analog equipment is connected with the attenuator; the combiner comprises an output end and at least two input ends, the output end of the combiner is connected with interference electromagnetic wave equipment, the analog equipment is connected with one input end of the combiner through an attenuator, and the white noise generator is connected with the other input end of the combiner through an amplitude regulator; the attenuator is used for adjusting the attenuation value to enable the analog signal to reach the maximum power of the interfered electromagnetic wave equipment capable of demodulating the analog signal when the white noise generator is turned off; the amplitude regulator is used for adjusting the gain amplitude of the white noise signal to enable the white noise signal to reach the maximum power of the analog signal which can be demodulated by the interfered electromagnetic wave equipment; the electromagnetic wave transmitting equipment is used for adjusting the transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator and the isolation degree between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment.
The maximum power analog signal which can be demodulated by the interfered electromagnetic wave equipment can be simulated by the simulation equipment; the white noise generator which is simultaneously started is matched, the maximum interference power which can be borne by the interfered electromagnetic wave equipment can be determined on the premise that the communication performance of the interfered electromagnetic wave equipment is not influenced according to the output power of the white noise generator and the gain amplitude of the amplitude regulator, so that the transmitting power of the electromagnetic wave transmitting equipment can be adjusted according to the power, and the adjustment of the out-of-band radiation of the airborne electromagnetic wave equipment can be quickly and accurately realized.
The invention also provides an out-of-band radiation adjusting method for the airborne electromagnetic wave equipment, which also has the beneficial effects and is not repeated herein.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a block diagram of an out-of-band radiation adjustment system for an airborne electromagnetic wave device according to an embodiment of the present invention;
fig. 2 is a flowchart of an out-of-band radiation adjustment method for an airborne electromagnetic wave device according to an embodiment of the present invention.
In the figure: 1. the device comprises interfered electromagnetic wave equipment, 2 a combiner, 3 analog equipment, 4 an attenuator, 5 a white noise generator and 6 an amplitude regulator.
Detailed Description
The core of the invention is to provide an out-of-band radiation adjusting system for airborne electromagnetic wave equipment. In the prior art, two electromagnetic wave devices are usually not operated simultaneously to prevent interference between the electromagnetic wave devices. In practical cases, however, interference between electromagnetic wave devices usually occurs only after high power radiation.
The invention provides an out-of-band radiation adjusting system for airborne electromagnetic wave equipment, which comprises electromagnetic wave transmitting equipment, analog equipment, an attenuator, a white noise generator, an amplitude regulator, a combiner and interfered electromagnetic wave equipment; the combiner comprises an output end and at least two input ends, the output end of the combiner is connected with interference electromagnetic wave equipment, the analog equipment is connected with one input end of the combiner through an attenuator, and the white noise generator is connected with the other input end of the combiner through an amplitude regulator; the attenuator is used for adjusting the attenuation value to enable the analog signal to reach the maximum power of the interfered electromagnetic wave equipment capable of demodulating the analog signal when the white noise generator is turned off; the amplitude regulator is used for adjusting the gain amplitude of the white noise signal to enable the white noise signal to reach the maximum power of the analog signal which can be demodulated by the interfered electromagnetic wave equipment; the electromagnetic wave transmitting equipment is used for adjusting the transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator and the isolation degree between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment.
The maximum power analog signal which can be demodulated by the interfered electromagnetic wave equipment can be simulated by the simulation equipment; the white noise generator which is simultaneously started is matched, the maximum interference power which can be borne by the interfered electromagnetic wave equipment can be determined on the premise that the communication performance of the interfered electromagnetic wave equipment is not influenced according to the output power of the white noise generator and the gain amplitude of the amplitude regulator, so that the transmitting power of the electromagnetic wave transmitting equipment can be adjusted according to the power, and the adjustment of the out-of-band radiation of the airborne electromagnetic wave equipment can be quickly and accurately realized.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a block diagram illustrating an out-of-band radiation adjustment system for an airborne electromagnetic wave device according to an embodiment of the present invention.
Referring to fig. 1, in the embodiment of the present invention, an out-of-band radiation adjustment system for airborne electromagnetic wave equipment includes electromagnetic wave emitting equipment, analog equipment 3, an attenuator 4, a white noise generator 5, an amplitude adjuster 6, a combiner 2, and interfered electromagnetic wave equipment 1; the combiner 2 comprises an output end and at least two input ends, the output end of the combiner 2 is connected with the interfering electromagnetic wave device, the analog device 3 is connected with one input end of the combiner 2 through the attenuator 4, and the white noise generator 5 is connected with the other input end of the combiner 2 through the amplitude regulator 6; the analog device 3 is used for sending an analog signal to the interfered electromagnetic wave device 1, and the attenuator 4 is used for adjusting an attenuation value to enable the analog signal to reach the maximum power at which the interfered electromagnetic wave device 1 can demodulate the analog signal when the white noise generator 5 is turned off; the white noise generator 5 is configured to send a white noise signal to the interfered electromagnetic wave device 1 while keeping the interfered electromagnetic wave device 1 receiving a maximum power analog signal that can be demodulated, and the amplitude adjuster 6 is configured to adjust a gain amplitude of the white noise signal so that the white noise signal reaches a maximum power at which the interfered electromagnetic wave device 1 can demodulate the analog signal; the electromagnetic wave transmitting equipment is used for adjusting the transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator 5 and the isolation between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment 1.
In general, the above-mentioned interfered electromagnetic wave device 1, that is, the device which may be interfered by other electromagnetic wave devices and cannot normally operate, first the transmitting/receiving antenna of the interfered electromagnetic wave device 1 needs to be removed to expose the antenna port, and then the output terminal of the combiner 2 is directly connected to the antenna port of the interfered electromagnetic wave device 1. The specific type of the interfered electromagnetic wave device 1 may be set according to the actual situation, and is not limited specifically herein. In general, the interfered electromagnetic wave device 1 needs to include a middle rf component for converting the rf signal into an intermediate frequency, and a baseband for performing ADC sampling, signal processing, and the like on the intermediate frequency signal.
The combiner 2 includes at least one output terminal and at least two input terminals, and the combiner 2 may combine signals input from the two input terminals into one signal and output the signal from the output terminal. For the specific structure of the combiner 2, reference may be made to the prior art, and details thereof are not repeated herein.
The analog device 3 is connected to one input end of the combiner 2 through the attenuator 4, the analog device 3 can transmit an analog signal, and the interfered electromagnetic wave device 1 can demodulate the analog signal. In particular, when in a communication scenario, the analog signal is typically a communication signal, and the analog device 3 is used to transmit the communication signal; when in a positioning scenario, the analog signal is typically a satellite navigation signal, and the analog device 3 is used to transmit the satellite navigation signal.
The attenuator 4 is connected between the analog device 3 and an input terminal of the combiner 2, and the attenuator 4 is used for adjusting the power of the analog signal by adjusting its attenuation value. Specifically, in the embodiment of the present invention, the white noise generator 5 and the amplitude adjuster 6 need to be turned off first, so as to ensure that the interfered electromagnetic wave device 1 only receives the analog signal. At this time, the attenuator 4 adjusts its attenuation value, thereby adjusting the power of the analog signal received by the interfered electromagnetic wave device 1. In the embodiment of the present invention, the attenuator 4 will adjust the power of the analog signal to the maximum power at which the interfered electromagnetic wave device 1 can demodulate the analog signal.
In general, the attenuator 4 described above is specifically used in the embodiment of the present invention: the attenuation value is adjusted from high to low, so that the analog signal reaches the maximum power of the interfered electromagnetic wave device 1 capable of demodulating the analog signal. That is, in the embodiment of the present invention, the attenuator 4 is usually set to the highest attenuation value first, and the interfered electromagnetic wave device 1 cannot demodulate the analog signal. At this time, the attenuator 4 is controlled to adjust the attenuation value from high to low until the power of the analog signal reaches the maximum power at which the interfered electromagnetic wave device 1 can demodulate the analog signal.
The white noise generator 5 is configured to generate a white noise signal, and the white noise generator 5 may be an electrically tunable filter connected to a white noise device, or a vector signal source. The specific structure of the white noise generator 5 is not particularly limited in the embodiment of the present invention as long as it can generate a white noise signal. Specifically, the white noise generator 5 is configured to transmit a white noise signal to the interfered electromagnetic wave device 1 through the combiner 2 while keeping the interfered electromagnetic wave device 1 receiving the maximum power analog signal that can be demodulated. That is, in the embodiment of the present invention, when the white noise generator 5 operates, it is necessary to ensure that the analog device 3 also operates at the same time, and ensure that the attenuator 4 adjusts the power of the analog signal to the maximum power of the analog signal that can be demodulated by the interfered electromagnetic wave device 1.
The amplitude adjuster 6 is connected between the white noise generator 5 and the other input end of the combiner 2, and the amplitude adjuster 6 is used for adjusting the gain amplitude of the white noise signal so that the white noise signal reaches the maximum power at which the interfered electromagnetic wave device 1 can demodulate the analog signal. It should be noted that, when the amplitude adjuster 6 works, it is also necessary to ensure that the analog device 3 works at the same time, and ensure that the attenuator 4 adjusts the power of the analog signal to the maximum power of the analog signal that can be demodulated by the interfered electromagnetic wave device 1.
The amplitude adjuster 6 adjusts the gain amplitude of the white noise signal, thereby adjusting the power of the interfered electromagnetic wave device 1 receiving the white noise signal. In the embodiment of the present invention, the amplitude adjuster 6 adjusts the power of the white noise signal to the maximum power at which the interfered electromagnetic wave device 1 can still demodulate the analog signal.
In general, the amplitude adjuster 6 is specifically configured to: and adjusting the gain amplitude of the white noise signal from low to high to enable the white noise signal to reach the maximum power at which the interfered electromagnetic wave device 1 can demodulate the analog signal. That is, in the embodiment of the present invention, the amplitude adjuster 6 is usually set to the lowest gain amplitude first, and the interfered electromagnetic wave device 1 can still demodulate the analog signal. At this time, the amplitude adjuster 6 is controlled to adjust the gain amplitude from low to high until the power of the white noise signal reaches a level at which the interfered electromagnetic wave device 1 cannot demodulate the analog signal.
In the embodiment of the present invention, the electromagnetic wave emitting device adjusts the emitting power of the electromagnetic wave emitting device according to the gain amplitude of the amplitude adjuster 6, the output power of the white noise generator 5, and the isolation between the electromagnetic wave emitting device and the interfered electromagnetic wave device 1. Specifically, the sum of the gain amplitude of the amplitude adjuster 6 and the output power of the white noise generator 5 is equal to the maximum interference power that can be tolerated by the interfered electromagnetic wave device 1, and the maximum interference power plus the isolation between the electromagnetic wave emitting device and the interfered electromagnetic wave device 1 is the maximum allowable emitting power of the electromagnetic wave emitting device.
The out-of-band radiation adjustment system for airborne electromagnetic wave equipment provided by the embodiment of the invention comprises electromagnetic wave emission equipment, analog equipment 3, an attenuator 4, a white noise generator 5, an amplitude regulator 6, a combiner 2 and interfered electromagnetic wave equipment 1; the combiner 2 comprises an output end and at least two input ends, the output end of the combiner 2 is connected with an interference electromagnetic wave device, the analog device 3 is connected with one input end of the combiner 2 through an attenuator 4, and the white noise generator 5 is connected with the other input end of the combiner 2 through an amplitude regulator 6; the analog device 3 is used for sending an analog signal to the interfered electromagnetic wave device 1, and the attenuator 4 is used for adjusting the attenuation value to enable the analog signal to reach the maximum power of the interfered electromagnetic wave device 1 capable of demodulating the analog signal when the white noise generator 5 is turned off; the white noise generator 5 is used for sending a white noise signal to the interfered electromagnetic wave device 1 when the interfered electromagnetic wave device 1 is kept to receive the maximum power analog signal which can be demodulated, and the amplitude regulator 6 is used for regulating the gain amplitude of the white noise signal so that the white noise signal reaches the maximum power of the interfered electromagnetic wave device 1 which can demodulate the analog signal; the electromagnetic wave emitting device is used for adjusting the emitting power of the electromagnetic wave emitting device according to the gain amplitude, the output power of the white noise generator 5 and the isolation between the electromagnetic wave emitting device and the interfered electromagnetic wave device 1.
The maximum power analog signal which can be demodulated by the interfered electromagnetic wave equipment 1 can be simulated by the simulation equipment 3; the white noise generator 5 which is simultaneously started is matched, the maximum interference power which can be borne by the interfered electromagnetic wave equipment 1 can be determined on the premise that the communication performance of the interfered electromagnetic wave equipment 1 is not influenced according to the output power of the white noise generator 5 and the gain amplitude of the amplitude regulator 6, so that the transmitting power of the electromagnetic wave transmitting equipment can be adjusted according to the power, and the adjustment of the out-of-band radiation of the airborne electromagnetic wave equipment can be quickly and accurately realized.
The details of the out-of-band emission adjustment system for airborne electromagnetic wave devices provided by the present invention will be described in detail in the following embodiments of the invention.
Different from the above embodiment of the invention, the embodiment of the invention further adjusts the transmission power of the electromagnetic wave transmitting device on the basis of the above embodiment of the invention. The rest of the contents are already described in detail in the above embodiments of the present invention, and are not described herein again.
In an embodiment of the present invention, the electromagnetic wave emitting device is specifically configured to: determining the initial transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator 5 and the isolation between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment 1; and transmitting an electromagnetic signal by the initial transmission power, and adjusting the transmission power of the electromagnetic wave transmitting equipment to reach the actual transmission power when the interfered electromagnetic wave equipment 1 under the preset isolation is interfered.
In the above embodiment of the present invention, the transmission power obtained by the gain amplitude of the amplitude adjuster 6, the output power of the white noise generator 5, and the isolation between the electromagnetic wave transmitting device and the interfered electromagnetic wave device 1 is the theoretically true transmission power of the electromagnetic wave transmitting device, and in the embodiment of the present invention, the transmission power is used as the initial transmission power of the electromagnetic wave transmitting device, and the actual transmission power of the electromagnetic wave transmitting device is further adjusted.
Specifically, in the embodiment of the present invention, it is necessary to enable the electromagnetic wave transmitting device to transmit an electromagnetic wave signal with the initial transmission power, detect whether the interfered electromagnetic wave device 1 having the above isolation from the electromagnetic wave transmitting device is interfered, and further continue to adjust the transmission power of the electromagnetic wave transmitting device according to whether the interfered electromagnetic wave device 1 is interfered. Specifically, when the interfered electromagnetic wave device 1 is interfered, the transmission power of the electromagnetic wave transmitting device is reduced, whether the interfered electromagnetic wave device 1 is interfered is continuously detected, and if the interfered electromagnetic wave device 1 is interfered, the transmission power of the electromagnetic wave transmitting device is continuously reduced until the interfering electromagnetic wave device is not interfered; when the interfered electromagnetic wave device 1 is not interfered, the transmission power of the electromagnetic wave transmitting device is increased, whether the interfered electromagnetic wave device 1 is interfered or not is continuously detected, and if the interfered electromagnetic wave device 1 is not interfered, the transmission power of the electromagnetic wave transmitting device is continuously increased until the interfering electromagnetic wave device is interfered. At this time, the transmission power of the electromagnetic wave transmission device, that is, the actual transmission power, is adjusted.
In the embodiment of the present invention, since the theoretically feasible initial transmitting power of the electromagnetic wave transmitting device can be obtained first by the analog device 3, the white noise generator 5, the combiner 2, and the like, and further, when the transmitting power of the electromagnetic wave transmitting device is adjusted in the embodiment of the present invention, the actual transmitting power of the electromagnetic wave transmitting device can be obtained only by performing fine adjustment near the initial transmitting power, so that the time for adjusting the actual transmitting power of the electromagnetic wave transmitting device is greatly reduced, and the efficiency for adjusting the actual transmitting power of the electromagnetic wave transmitting device is improved.
According to the out-of-band radiation adjusting system for the airborne electromagnetic wave equipment, provided by the embodiment of the invention, a maximum power analog signal which can be demodulated by the interfered electromagnetic wave equipment 1 can be simulated through the simulation equipment 3; the white noise generator 5 which is simultaneously started is matched, the maximum interference power which can be borne by the interfered electromagnetic wave equipment 1 can be determined on the premise that the communication performance of the interfered electromagnetic wave equipment 1 is not influenced according to the output power of the white noise generator 5 and the gain amplitude of the amplitude regulator 6, so that the transmitting power of the electromagnetic wave transmitting equipment can be adjusted according to the power, and the adjustment of the out-of-band radiation of the airborne electromagnetic wave equipment can be quickly and accurately realized.
In the following, the method for adjusting out-of-band radiation of airborne electromagnetic wave device provided by the present invention is introduced, and the method for adjusting out-of-band radiation of airborne electromagnetic wave device described below and the system for adjusting out-of-band radiation of airborne electromagnetic wave device described above may be referred to correspondingly.
Referring to fig. 2, fig. 2 is a flowchart illustrating an out-of-band radiation adjustment method for an airborne electromagnetic wave device according to an embodiment of the present invention.
The method for adjusting out-of-band radiation of airborne electromagnetic wave equipment according to the embodiment of the present invention is specifically applied to the system for adjusting out-of-band radiation of airborne electromagnetic wave equipment, and the specific structure of the system for adjusting out-of-band radiation of airborne electromagnetic wave equipment has been described in detail in the embodiment of the present invention, and is not described herein again.
Referring to fig. 2, in an embodiment of the present invention, an out-of-band radiation adjustment method for an airborne electromagnetic wave device includes:
s101: and sending an analog signal to the interfered electromagnetic wave device through the analog device.
In the embodiment of the invention, the analog device is connected with one input end of a combiner through an attenuator, the output end of the combiner is connected with the interference electromagnetic wave device, and the other input end of the combiner is connected with a white noise generator through an amplitude regulator. For the specific structure of the out-of-band radiation adjustment system of the airborne electromagnetic wave device, please refer to the above-mentioned embodiment of the present invention, which is not described herein again.
In this step, the analog device needs to transmit an analog signal to the interfered electromagnetic wave device and hold the analog signal at least until S104 described below is performed. The details of the analog signal are described in detail in the above embodiments of the invention, and are not described herein again.
S102: when the attenuator is used for turning off the white noise generator, the attenuation value is adjusted to enable the analog signal to reach the maximum power of the interfered electromagnetic wave equipment capable of demodulating the analog signal.
In this step, it is necessary to keep the white noise generator off, i.e. the interfered electromagnetic wave device will only receive the analog signal. In this step, the power of the analog signal is adjusted to the maximum power of the analog signal that can be demodulated by the interfered electromagnetic wave device through the attenuator. The specific adjustment procedure of the attenuator has been described in detail in the above embodiments of the invention, and will not be described herein again.
Specifically, the steps are generally specifically as follows: when the white noise generator is turned off, the attenuator adjusts the attenuation value from high to low, so that the analog signal reaches the maximum power at which the interfered electromagnetic wave equipment can demodulate the analog signal. That is, the attenuator of this step usually adjusts its attenuation value from high to low, so as to adjust the power of the analog signal to the maximum power of the analog signal that can be demodulated by the interfered electromagnetic wave device.
S103: and sending a white noise signal to the interfered electromagnetic wave equipment by a white noise generator when the interfered electromagnetic wave equipment is kept to receive the maximum power analog signal capable of being demodulated.
The white noise generator needs to transmit a white noise signal to the interfered electromagnetic wave device and at least maintain the white noise signal until S104 described below is performed. For the specific content of the white noise signal, reference may be made to the prior art, and the specific structure of the white noise generator is described in detail in the above embodiments of the present invention, which is not described herein again. Specifically, in the embodiment of the present invention, the white noise generator may be an electrically tunable filter connected to a white noise device, or a vector signal source.
S104: the gain amplitude of the white noise signal is adjusted by the amplitude adjuster, so that the white noise signal reaches the maximum power of the interfered electromagnetic wave equipment capable of demodulating the analog signal.
In this step, the power of the white noise signal is specifically adjusted to the maximum power at which the interfered electromagnetic wave device can demodulate the analog signal by the amplitude adjuster. The specific adjustment process of the amplitude adjuster has been described in detail in the above embodiments of the present invention, and will not be described herein again.
Specifically, the steps are generally specifically as follows: and adjusting the gain amplitude of the white noise signal from low to high through an amplitude adjuster to enable the white noise signal to reach the maximum power at which the interfered electromagnetic wave equipment can demodulate the analog signal. That is, the amplitude adjuster in this step usually adjusts the gain amplitude of the white noise signal from low to high, so as to adjust the power of the white noise signal to the maximum power at which the interfered electromagnetic wave device can still demodulate the analog signal.
S105: and adjusting the transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator and the isolation between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment.
In this step, the transmission power of the electromagnetic wave transmitting device is specifically adjusted according to the gain amplitude of the amplitude adjuster, the output power of the white noise generator, and the isolation between the electromagnetic wave transmitting device and the interfered electromagnetic wave device. Specifically, the sum of the gain amplitude of the amplitude adjuster and the output power of the white noise generator is equal to the maximum interference power that can be tolerated by the interfered electromagnetic wave device, and the maximum interference power plus the isolation between the electromagnetic wave transmitting device and the interfered electromagnetic wave device is the maximum allowable transmitting power of the electromagnetic wave transmitting device. The specific calculation process of the transmission power of the electromagnetic wave transmission device has been described in detail in the above embodiments of the present invention, and will not be described herein again.
Preferably, in the embodiment of the present invention, S105 generally specifically includes:
s1051: and determining the initial transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator and the isolation between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment.
In this step, the actual transmission power of the electromagnetic wave transmitting device is adjusted in the following steps, specifically, the transmission power obtained by the gain amplitude of the amplitude adjuster, the output power of the white noise generator, and the isolation between the electromagnetic wave transmitting device and the interfered electromagnetic wave device is used as the initial transmission power of the electromagnetic wave transmitting device.
S1052: and transmitting an electromagnetic signal by the initial transmitting power, and adjusting the transmitting power of the electromagnetic wave transmitting equipment to reach the actual transmitting power when the interfered electromagnetic wave equipment under the preset isolation is interfered.
In this step, it is necessary to enable the electromagnetic wave transmitting device to transmit an electromagnetic wave signal with the initial transmission power, and detect whether the interfered electromagnetic wave device having the above isolation from the electromagnetic wave transmitting device is interfered, and further, adjust the transmission power of the electromagnetic wave transmitting device according to whether the interfered electromagnetic wave device is interfered. Specifically, when the interfered electromagnetic wave device is interfered, the transmission power of the electromagnetic wave transmitting device is reduced, whether the interfered electromagnetic wave device is interfered or not is continuously detected, and if the interfered electromagnetic wave device is interfered, the transmission power of the electromagnetic wave transmitting device is continuously reduced until the interfering electromagnetic wave device is not interfered; when the interfered electromagnetic wave equipment is not interfered, the transmission power of the electromagnetic wave transmitting equipment is increased, whether the interfered electromagnetic wave equipment is interfered or not is continuously detected, and if the interfered electromagnetic wave equipment is not interfered, the transmission power of the electromagnetic wave transmitting equipment is continuously increased until the interfering electromagnetic wave equipment is interfered. At this time, the transmission power of the electromagnetic wave transmitting device after the adjustment is the actual transmission power.
According to the out-of-band radiation adjusting method for the airborne electromagnetic wave equipment, provided by the embodiment of the invention, a maximum power analog signal which can be demodulated by interfered electromagnetic wave equipment can be simulated through simulation equipment; the white noise generator which is simultaneously started is matched, the maximum interference power which can be borne by the interfered electromagnetic wave equipment can be determined on the premise that the communication performance of the interfered electromagnetic wave equipment is not influenced according to the output power of the white noise generator and the gain amplitude of the amplitude regulator, so that the transmitting power of the electromagnetic wave transmitting equipment can be adjusted according to the power, and the adjustment of the out-of-band radiation of the airborne electromagnetic wave equipment can be quickly and accurately realized.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The above detailed description is made on an out-of-band radiation adjustment system and an out-of-band radiation adjustment method for airborne electromagnetic wave equipment provided by the present invention. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. An out-of-band radiation adjustment system for airborne electromagnetic wave equipment is characterized by comprising electromagnetic wave emission equipment, analog equipment, an attenuator, a white noise generator, an amplitude regulator, a combiner and interfered electromagnetic wave equipment;
the combiner comprises an output end and at least two input ends, the output end of the combiner is connected with the interference electromagnetic wave equipment, the simulation equipment is connected with one input end of the combiner through the attenuator, and the white noise generator is connected with the other input end of the combiner through the amplitude regulator;
the analog device is used for sending an analog signal to the interfered electromagnetic wave device, and the attenuator is used for adjusting an attenuation value to enable the analog signal to reach the maximum power of the interfered electromagnetic wave device capable of demodulating the analog signal when the white noise generator is turned off;
the white noise generator is used for sending a white noise signal to the interfered electromagnetic wave equipment when the interfered electromagnetic wave equipment is kept to receive a maximum power analog signal capable of being demodulated; the amplitude regulator is used for adjusting the gain amplitude of the white noise signal to enable the white noise signal to reach the maximum power of the interfered electromagnetic wave equipment capable of demodulating the analog signal;
the electromagnetic wave transmitting equipment is used for adjusting the transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator and the isolation between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment;
the electromagnetic wave emission device is specifically configured to:
determining the initial transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator and the isolation between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment;
and transmitting an electromagnetic signal by using the initial transmitting power, and adjusting the transmitting power of the electromagnetic wave transmitting equipment to reach the actual transmitting power when the interfered electromagnetic wave equipment under the preset isolation is interfered.
2. The system of claim 1, wherein the attenuator is specifically configured to:
and adjusting the attenuation value from high to low to enable the analog signal to reach the maximum power of the interfered electromagnetic wave device capable of demodulating the analog signal.
3. The system of claim 2, wherein the amplitude adjuster is specifically configured to:
and adjusting the gain amplitude of the white noise signal from low to high to enable the white noise signal to reach the maximum power at which the interfered electromagnetic wave equipment can demodulate the analog signal.
4. The system of claim 3, wherein the white noise generator is an electrically tunable filter coupled with a white noise device or a vector signal source.
5. An out-of-band radiation adjustment method for airborne electromagnetic wave equipment is characterized by comprising the following steps:
sending an analog signal to the interfered electromagnetic wave equipment through analog equipment; the analog equipment is connected with one input end of a combiner through an attenuator, the output end of the combiner is connected with the interference electromagnetic wave equipment, and the other input end of the combiner is connected with a white noise generator through an amplitude regulator;
when the white noise generator is turned off through the attenuator, adjusting an attenuation value to enable the analog signal to reach the maximum power at which the interfered electromagnetic wave equipment can demodulate the analog signal;
sending a white noise signal to the interfered electromagnetic wave equipment when the interfered electromagnetic wave equipment is kept to receive a maximum power analog signal which can be demodulated through a white noise generator;
adjusting the gain amplitude of the white noise signal through an amplitude adjuster to enable the white noise signal to reach the maximum power of the interfered electromagnetic wave equipment capable of demodulating the analog signal;
adjusting the transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator and the isolation between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment;
the adjusting the transmission power of the electromagnetic wave transmitting device according to the gain amplitude, the output power of the white noise generator and the isolation between the electromagnetic wave transmitting device and the interfered electromagnetic wave device comprises:
determining the initial transmitting power of the electromagnetic wave transmitting equipment according to the gain amplitude, the output power of the white noise generator and the isolation between the electromagnetic wave transmitting equipment and the interfered electromagnetic wave equipment;
and transmitting an electromagnetic signal by using the initial transmitting power, and adjusting the transmitting power of the electromagnetic wave transmitting equipment to reach the actual transmitting power when the interfered electromagnetic wave equipment under the preset isolation is interfered.
6. The method of claim 5, wherein the adjusting, by the attenuator, the attenuation value to make the analog signal reach a maximum power at which the interfered electromagnetic wave device can demodulate the analog signal when the white noise generator is turned off comprises:
when the white noise generator is turned off, the attenuator adjusts the attenuation value from high to low, so that the analog signal reaches the maximum power at which the interfered electromagnetic wave equipment can demodulate the analog signal.
7. The method as claimed in claim 6, wherein said adjusting the gain amplitude of the white noise signal by an amplitude adjuster to make the white noise signal reach the maximum power at which the interfered electromagnetic wave device can demodulate the analog signal comprises:
and adjusting the gain amplitude of the white noise signal from low to high through an amplitude adjuster to enable the white noise signal to reach the maximum power at which the interfered electromagnetic wave equipment can demodulate the analog signal.
8. The method of claim 7, wherein the white noise generator is an electrically tunable filter connected to a white noise device or a vector signal source.
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