CN116781103B - Phase control method, device, storage medium and electronic equipment - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B2001/6912—Spread spectrum techniques using chirp
Abstract
The disclosure relates to the field of communication technologies, and in particular, to a phase control method, a device, a storage medium, and an electronic apparatus, which reduce out-of-band radiation of signals in a parallel transmission process. The phase control method comprises the following steps: determining a chirp signal of target data in data transmission, wherein the target data at least comprises two chirp signals; and optimizing a second initial phase of a second chirp signal according to a first envelope curve of a first chirp signal for each chirp signal in the target data to realize phase control of the target data in data transmission, wherein a first ending phase of the first chirp signal is the second initial phase of the second chirp signal.
Description
Technical Field
The disclosure relates to the technical field of communication, and in particular relates to a phase control method, a phase control device, a storage medium and electronic equipment.
Background
Chirp (Chirp) spread spectrum modulation is a communication technology that uses linear frequency modulation for data transmission, and has strong multipath and narrowband interference resistance. Since the Chirp spread spectrum has the problem of too low transmission rate, in order to improve transmission efficiency, a parallel transmission mode is mainly adopted.
In the related art, in a Chirp spread spectrum parallel transmission scene, the amplitude and the phase of each Chirp signal in data for data transmission are time-varying, the calculation result of the phase in the data is difficult to obtain, and the out-of-band radiation of the Chirp signal is higher in the parallel transmission process.
Disclosure of Invention
The purpose of the present disclosure is to provide a phase control method, a device, a storage medium and an electronic apparatus, which reduce out-of-band radiation of signals in parallel transmission.
To achieve the above object, in a first aspect, the present disclosure provides a phase control method, including:
determining a chirp signal of target data in data transmission, wherein the target data at least comprises two chirp signals;
and optimizing a second initial phase of a second chirp signal according to a first envelope curve of a first chirp signal for each chirp signal in the target data to realize phase control of the target data in data transmission, wherein a first ending phase of the first chirp signal is the second initial phase of the second chirp signal.
Optionally, optimizing the second initial phase of the second chirp signal according to the first envelope of the first chirp signal includes:
determining a first envelope of the first chirp signal;
and determining a target optimization mode according to the relation between the first envelope curve and a preset value, and optimizing the second initial phase through the target optimization mode.
Optionally, in a case where the first chirp signal is a first chirp signal in the target data, the determining the first envelope of the first chirp signal includes:
and obtaining a first envelope curve of the first chirp signal according to the first current phase of the first chirp signal and the second current phase of the second chirp signal.
Optionally, in the case that the first chirp signal is another chirp signal except for the first chirp signal in the target data, the determining the first envelope of the first chirp signal includes:
determining a third initial phase, a third current phase and a third envelope of a third chirp signal, and a first current phase of the first chirp signal, wherein an ending phase of the third chirp signal is the first initial phase of the first chirp signal;
and determining a first envelope of the first chirp signal according to the third initial phase, the third current phase, the third envelope and the first current phase.
Optionally, the determining a target optimization mode according to the relation between the first envelope curve and a preset value, and optimizing the second initial phase through the target optimization mode includes:
and optimizing the second initial phase according to the first initial phase and the first ending phase of the first chirp signal under the condition that the first envelope is equal to the preset value.
Optionally, the determining a target optimization mode according to the relation between the first envelope curve and a preset value, and optimizing the second initial phase through the target optimization mode includes:
and under the condition that the first envelope line is larger or smaller than the preset value, determining a phase optimization value corresponding to the second initial phase, and optimizing the second initial phase according to the phase optimization value.
Optionally, the determining a phase optimization value corresponding to the second initial phase, and optimizing the second initial phase according to the phase optimization value includes:
determining the phase optimization value according to the first ending phase and the second current phase of the second chirp signal;
and adding the phase optimization value and the second initial phase to obtain a target second initial phase.
In a second aspect, the present disclosure provides a phase control apparatus comprising:
a determining module configured to determine a chirp signal of target data for data transmission, wherein the target data at least comprises two chirp signals;
and an optimizing module configured to optimize, for each chirp signal in the target data, a second initial phase of a second chirp signal according to a first envelope of a first chirp signal to realize phase control of the target data in data transmission, wherein a first ending phase of the first chirp signal is the second initial phase of the second chirp signal.
In a third aspect, the present disclosure provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the phase control method of the first aspect.
In a fourth aspect, the present disclosure provides an electronic device comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of the phase control method according to the first aspect.
According to the technical scheme, the chirp signals of the target data for data transmission are determined, and for each chirp signal, the second initial phase of the second chirp signal is optimized according to the first envelope curve of the first chirp signal, so that the phase control of the target data in data transmission is realized, wherein the first ending phase of the first chirp signal is the second initial phase of the second chirp signal, the continuity of the phases of the chirp signals in the target data is ensured, and the accurate control of the phases of each chirp signal is realized by optimizing the initial phases of the chirp signals in the target data, so that the out-of-band radiation of the target data in the data transmission process is reduced.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
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The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
fig. 1 is a flowchart illustrating a phase control method according to an exemplary embodiment of the present disclosure.
Fig. 2 is a flowchart illustrating step S12 according to an exemplary embodiment of the present disclosure.
Fig. 3 is another flowchart illustrating a phase control method according to an exemplary embodiment of the present disclosure.
Fig. 4 is a block diagram of a phase control apparatus according to an exemplary embodiment of the present disclosure.
Fig. 5 is a block diagram of an electronic device, shown in accordance with an exemplary embodiment of the present disclosure.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
It should be noted that, all actions for acquiring signals, information or data in the present disclosure are performed under the condition of conforming to the corresponding data protection rule policy of the country of the location and obtaining the authorization given by the owner of the corresponding device.
Fig. 1 is a flowchart illustrating a phase control method according to an exemplary embodiment of the present disclosure. Taking the phase control method for Chirp spread spectrum modulation as an example, the phase control method may include the following steps:
in step S11, the chirp signals of the target data, which include at least two chirp signals, are determined to be being data-transmitted.
The chirp signals in the target data are transmitted in a parallel transmission mode.
In step S12, for each chirp signal in the target data, the second initial phase of the second chirp signal is optimized according to the first envelope of the first chirp signal to realize phase control of the target data in data transmission, wherein the first ending phase of the first chirp signal is the second initial phase of the second chirp signal.
For example, for each chirp signal in the target data, the second initial phase of the second chirp signal is optimized through the first envelope of the first chirp signal, so as to optimize the initial phase of each chirp signal in the target data, thereby realizing phase control of the target data in data transmission.
In the parallel transmission process, the initial phase of the next chirp signal is optimized according to the envelope curve of the previous chirp signal for two adjacent chirp signals, so that the initial phase of each chirp signal in the target data is optimized, the accurate control of the phase of the target data in the data transmission is realized, the transmission efficiency is improved, the continuity of the phases of the chirp signals of the target data in the data transmission is ensured, and the out-of-band radiation is reduced.
In order to facilitate a better understanding of the phase control method provided by the present disclosure by those skilled in the art, the relevant steps involved in the phase control method are illustrated in detail below.
In a possible embodiment, referring to fig. 2, in step S12, optimizing the second initial phase of the second chirp signal according to the first envelope of the first chirp signal may include the steps of:
in step S21, a first envelope of the first chirp signal is determined.
For example, in the case that the target data includes two chirp signals, the first chirp signal is the first chirp signal in the target data, and the envelope of the target data is a constant envelope, and the first envelope of the first chirp signal is obtained according to the first current phase of the first chirp signal and the second current phase of the second chirp signal.
For example, in the case where the target data includes N chirp signals and N > 2, the first chirp signal is another chirp signal except for the first chirp signal in the target data, and the envelope of the target data is a non-constant envelope, the first envelope of the first chirp signal is obtained according to the third current phase of the third chirp signal and the first current phase of the first chirp signal, and the third ending phase of the third chirp signal is the first initial phase of the first chirp signal.
In step S22, a target optimization mode is determined according to the relationship between the first envelope curve and the preset value, and the second initial phase is optimized by the target optimization mode.
The preset value can be preset according to the precision requirement of phase control, and the preset value in the method is 1.
The first envelope is compared with a preset value, a target optimization mode is determined from a plurality of preset optimization modes according to the comparison result, and the second initial phase of the second chirp signal is optimized through the target optimization mode.
According to the method and the device, the target optimization mode is determined according to the magnitude relation between the first envelope curve of the first chirp signal and the preset value, and the second initial phase of the second chirp signal is optimized through the target optimization mode, so that the optimization of the initial phase of each chirp signal in target data is realized, the continuity of the phases is guaranteed, and out-of-band radiation is reduced.
In a possible embodiment, in a case where the first chirp signal is the first chirp signal in the target data, determining the first envelope of the first chirp signal in step S21 may include:
and obtaining a first envelope curve of the first chirp signal according to the first current phase of the first chirp signal and the second current phase of the second chirp signal.
Illustratively, the first current phase of the first chirp signal and the second current phase of the second chirp signal are substituted into the first calculation formula to obtain the first envelope of the first chirp signal.
Wherein a first current phase of the first chirp signal: delta 1 =απt 2 +2β 1 πt+θ 1 Wherein delta 1 Characterizing a first current phase, alpha characterizing a rate of change of frequency, beta 1 Characterizing the initial frequency, t characterizing the transmit time, θ 1 A first initial phase of the first chirp signal is characterized. Second current phase of second chirp signal: delta 2 =απt 2 +2β 2 πt+θ 2 Wherein delta 2 Characterizing a second current phase, alpha characterizing a rate of change of frequency, beta 2 Characterizing the initial frequency, t characterizing the transmit time, θ 2 A second initial phase of the second chirp signal is characterized.
The first calculation formula includes:
，
obtaining a first envelope curve:。
in a possible embodiment, in the case that the first chirp signal is other chirp signal than the first chirp signal in the target data, determining the first envelope of the first chirp signal in step S21 may include:
and determining a third initial phase, a third current phase and a third envelope of the third chirp signal, and a first current phase of the first chirp signal, wherein an ending phase of the third chirp signal is the first initial phase of the first chirp signal.
Wherein, in the case that the first chirp signal is the other chirp signal except for the first one in the target data, the third chirp signal may be any one of the chirp signals except for the last one in the target data.
A first envelope of the first chirp signal is determined based on the third initial phase, the third current phase, the third envelope, and the first current phase.
Illustratively, the third current phase of the third chirp signal, the third envelope, and the first current phase of the first chirp signal are substituted into the second calculation formula to obtain the first envelope of the first chirp signal.
Wherein the second calculation formula includes:
，
wherein delta 3 Characterizing a third current phase, alpha 3 (t) represents a third envelope and R (t) represents a first envelope.
Obtaining a first envelope curve:
。
in the parallel transmission of a plurality of chirp signals in target data, the envelope of the next chirp signal is determined according to the initial phase, the current phase and the envelope of the previous chirp signal aiming at two chirp signals with adjacent phases, so that the phase continuity of each chirp signal in the target data is ensured.
In a possible embodiment, determining the target optimization mode according to the relation between the first envelope curve and the preset value, and optimizing the second initial phase through the target optimization mode may include:
and optimizing the second initial phase according to the first initial phase and the first ending phase of the first chirp signal when the first envelope is equal to a preset value.
For example, when t=0 and α (0) =1, the first initial phase and the first ending phase are substituted into a third calculation formula to obtain a target second initial phase, so as to optimize the second initial phase, where the third calculation formula includes:
θ 2 =2C-θ 1 ，θ 2 characterizing a target second initial phase, C characterizing a first ending phase, θ 1 The first initial phase is characterized.
In the case that the target data comprises two chirp signals, the envelope of the target data is a constant envelope, so that the initial phase of the second chirp signal can be optimized according to the initial phase and the end phase of the first chirp signal, the continuous phases of the two chirp signals are ensured, the phase control of the target data is realized, and the out-of-band radiation is reduced.
In a possible embodiment, determining the target optimization mode according to the relation between the first envelope curve and the preset value, and optimizing the second initial phase through the target optimization mode may include:
and under the condition that the first envelope line is larger or smaller than a preset value, determining a phase optimization value corresponding to the second initial phase, and optimizing the second initial phase according to the phase optimization value.
Illustratively, at time t=0, in the case where α (0) > 1 or α (0) < 1, the second initial phase θ 2 Taking any initial value, and according to the second initial phase after taking value, first packetAnd obtaining a phase optimization value by the line winding and the first initial phase, and optimizing the second initial phase according to the phase optimization value.
In a possible embodiment, determining a phase optimization value corresponding to the second initial phase and optimizing the second initial phase according to the phase optimization value includes:
and determining a phase optimization value according to the first ending phase and the second current phase of the second chirp signal.
Illustratively, substituting the first ending phase and the second current phase into a fourth calculation formula to obtain a phase optimized value, wherein the fourth calculation formula includes:
delta theta represents the phase optimization value, C represents the first ending phase, theta n The second current phase is characterized.
Wherein, in the case of time t=0, it is possible to obtain:
，
，
and adding the phase optimization value to the second initial phase to obtain a target second initial phase.
Illustratively, substituting the phase optimized value and the second initial phase into a fifth calculation formula to obtain a target second initial phase, wherein the fifth calculation formula includes:
θ 2 =θ 2 primary stage +Δθ，θ 2 primary stage Characterizing the phase optimization value, Δθ characterizing the phase optimizationAnd (5) value conversion.
Illustratively, in combination with the fourth expression, in the case of a (0) > 1,more than 0 as an increasing function according to the second initial phase theta after the value is taken 2 Calculated and obtainedf（θ 2 ) The method comprises the steps of carrying out a first treatment on the surface of the If it isf（θ 2 ) If the delta theta is less than C, optimizing the second initial phase to reduce the second initial phase according to the phase optimization value; if it isf（θ 2 ) And if the calculated delta theta is more than C, optimizing the second initial phase to increase the second initial phase according to the phase optimization value.
Illustratively, in combination with the fourth expression, in the case of a (0) < 1,less than 0, as a decreasing function, according to the second initial phase theta after the value is taken 2 Calculated and obtainedf（θ 2 ) The method comprises the steps of carrying out a first treatment on the surface of the If it isf（θ 2 ) If the delta theta is smaller than C, optimizing the second initial phase to increase the second initial phase according to the phase optimization value; if it isf（θ 2 ) And if the calculated delta theta is more than C, optimizing the second initial phase to reduce the second initial phase according to the phase optimization value.
For example, for N chirp signal parallel transmissions, the optimization procedure is referred to as the following algorithm:
initial value: θ 1 =0，α 1 （0）=1；
Iteration:
For n=2：N；
wherein N represents the iteration times and N represents the number of chirp signals;
calculate envelope):
；
If α（0）=1；
θ n =2C-θ n-1 ；
Else
initi (initialization): θ n =0；
Computer (calculation):；
θ n =θ n +Δθ n ；
End
and (3) outputting: θ n ，n=1，2，3···N。
In the parallel transmission of a plurality of chirp signals in target data, a greedy algorithm principle is adopted, initial phases of the next chirp signal are optimized according to envelopes of the previous chirp signals for the two chirp signals with adjacent phases, initial phases of the two chirp signals with adjacent phases are obtained, and locally optimal initial phases of all the chirp signals in the target data are obtained, so that phase continuity of each chirp signal in the target data is guaranteed.
For example, referring to fig. 3, the phase control method provided by the present disclosure may further include the steps of:
in step S31, the chirp signals of the target data, which include at least two chirp signals, are determined to be being data-transmitted.
In step S32, for each chirp signal in the target data, it is determined whether the first chirp signal is the first chirp signal in the target data, and if the first chirp signal is the first chirp signal in the target data, step S33 is performed; if the first chirp signal is other chirp signals than the first one in the target data, steps S34 and S35 are performed.
In step S33, a first envelope of the first chirp signal is obtained from the first current phase of the first chirp signal and the second current phase of the second chirp signal.
In step S34, a third initial phase, a third current phase, and a third envelope of the third chirp signal, and a first current phase of the first chirp signal are determined, wherein an ending phase of the third chirp signal is the first initial phase of the first chirp signal.
In step S35, a first envelope of the first chirp signal is determined based on the third initial phase, the third current phase, the third envelope, and the first current phase.
In step S36, it is determined whether the first envelope is equal to a preset value. If the first envelope is equal to the preset value, step S37 is executed; if the first envelope is greater than or less than the preset value, step S38 and step S39 are performed.
In step S37, the second initial phase is optimized according to the first initial phase and the first end phase of the first chirp signal.
In step S38, a phase optimization value is determined according to the first ending phase and the second current phase of the second chirp signal, where the first ending phase of the first chirp signal is the second initial phase of the second chirp signal.
In step S39, the phase optimized value is added to the second initial phase to obtain a target second initial phase.
Based on the same inventive concept, the present disclosure also provides a phase control apparatus, referring to fig. 4, the phase control apparatus 400 includes a determining module 401 and an optimizing module 402.
The determining module 401 is configured to determine a chirp signal of the target data during data transmission, where the target data includes at least two chirp signals.
The optimizing module 402 is configured to optimize, for each chirp signal in the target data, a second initial phase of the second chirp signal according to a first envelope of the first chirp signal to realize phase control of the target data in data transmission, wherein a first ending phase of the first chirp signal is the second initial phase of the second chirp signal.
In the parallel transmission process, the initial phase of the next chirp signal is optimized according to the envelope curve of the previous chirp signal for two adjacent chirp signals, so that the initial phase of each chirp signal in the target data is optimized, the accurate control of the phase of the target data in the data transmission is realized, the transmission efficiency is improved, the continuity of the phases of the chirp signals of the target data in the data transmission is ensured, and the out-of-band radiation is reduced.
Further, an optimization module 402 configured to determine a first envelope of the first chirp signal;
and determining a target optimization mode according to the relation between the first envelope curve and the preset value, and optimizing the second initial phase through the target optimization mode.
Further, the optimizing module 402 is configured to obtain a first envelope of the first chirp signal according to the first current phase of the first chirp signal and the second current phase of the second chirp signal, where the first chirp signal is the first chirp signal in the target data.
Further, the optimizing module 402 is configured to determine a third initial phase, a third current phase, and a third packet line of the third chirp signal, and a first current phase of the first chirp signal, where an end phase of the third chirp signal is the first initial phase of the first chirp signal;
and determining a first envelope of the first chirp signal according to the third initial phase, the third current phase, the third envelope and the first current phase, wherein the first chirp signal is other chirp signals except the first chirp signal in the target data.
Further, the optimizing module 402 is configured to optimize the second initial phase according to the first initial phase and the first end phase of the first chirp signal if the first envelope is equal to a preset value.
Further, the optimizing module 402 is configured to determine a phase optimizing value corresponding to the second initial phase when the first envelope is greater than or less than a preset value, and optimize the second initial phase according to the phase optimizing value.
Further, an optimization module 402 configured to determine a phase optimization value according to the first ending phase and the second current phase of the second chirp signal;
and adding the phase optimization value to the second initial phase to obtain a target second initial phase.
With respect to the phase control apparatus in the above-described embodiment, the specific manner in which the respective modules perform operations has been described in detail in the embodiment regarding the method, and will not be described in detail here.
Based on the same inventive concept, the present disclosure also provides an electronic device including:
a memory having a computer program stored thereon;
and a processor for executing the computer program in the memory to implement the steps of the phase control method described above.
In the parallel transmission process, the initial phase of the next chirp signal is optimized according to the envelope curve of the previous chirp signal for two adjacent chirp signals, so that the initial phase of each chirp signal in the target data is optimized, the accurate control of the phase of the target data in the data transmission is realized, the transmission efficiency is improved, the continuity of the phases of the chirp signals of the target data in the data transmission is ensured, and the out-of-band radiation is reduced.
Fig. 5 is a block diagram of an electronic device 500, according to an example embodiment. As shown in fig. 5, the electronic device 500 may include: a processor 501, a memory 502. The electronic device 500 may also include one or more of a multimedia component 503, an input/output (I/O) interface 504, and a communication component 505.
Wherein the processor 501 is configured to control the overall operation of the electronic device 500 to perform all or part of the steps of the phase control method described above. The memory 502 is used to store various types of data to support operation at the electronic device 500, which may include, for example, instructions for any application or method operating on the electronic device 500, as well as application-related data, such as target data, first chirp signals, second chirp signals, third chirp signals, and so forth. The Memory 502 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as static random access Memory (Static Random Access Memory, SRAM for short), electrically erasable programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM for short), erasable programmable Read-Only Memory (Erasable Programmable Read-Only Memory, EPROM for short), programmable Read-Only Memory (Programmable Read-Only Memory, PROM for short), read-Only Memory (ROM for short), magnetic Memory, flash Memory, magnetic disk, or optical disk. The multimedia component 503 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen, the audio component being for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in the memory 502 or transmitted through the communication component 505. The audio assembly further comprises at least one speaker for outputting audio signals. The I/O interface 504 provides an interface between the processor 501 and other interface modules, which may be a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 505 is used for wired or wireless communication between the electronic device 500 and other devices. Wireless communication, such as Wi-Fi, bluetooth, near field communication (Near Field Communication, NFC for short), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or one or a combination of more of them, is not limited herein. The corresponding communication component 505 may thus comprise: wi-Fi module, bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic device 500 may be implemented by one or more application specific integrated circuits (Application Specific Integrated Circuit, abbreviated as ASIC), digital signal processors (Digital Signal Processor, abbreviated as DSP), digital signal processing devices (Digital Signal Processing Device, abbreviated as DSPD), programmable logic devices (Programmable Logic Device, abbreviated as PLD), field programmable gate arrays (Field Programmable Gate Array, abbreviated as FPGA), controllers, microcontrollers, microprocessors, or other electronic components for performing the phase control methods described above.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the phase control method described above is also provided. For example, the computer readable storage medium may be the memory 502 described above including program instructions executable by the processor 501 of the electronic device 500 to perform the phase control method described above.
In another exemplary embodiment, a computer program product is also provided, comprising a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-described phase control method when executed by the programmable apparatus.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations are not described further in this disclosure in order to avoid unnecessary repetition.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (7)
1. A phase control method, comprising:
determining a chirp signal of target data in data transmission, wherein the target data at least comprises two chirp signals;
optimizing a second initial phase of a second chirp signal according to a first envelope of a first chirp signal for each chirp signal in the target data to realize phase control of the target data in data transmission, wherein a first ending phase of the first chirp signal is the second initial phase of the second chirp signal;
optimizing a second initial phase of a second chirp signal according to a first envelope of the first chirp signal, comprising:
determining a first envelope of the first chirp signal;
determining a target optimization mode according to the relation between the first envelope curve and a preset value, and optimizing the second initial phase through the target optimization mode;
determining a target optimization mode according to the relation between the first envelope curve and a preset value, and optimizing the second initial phase through the target optimization mode, wherein the method comprises the following steps:
determining a phase optimization value corresponding to the second initial phase when the first envelope is larger or smaller than the preset value, and optimizing the second initial phase according to the phase optimization value;
the determining a phase optimization value corresponding to the second initial phase, and optimizing the second initial phase according to the phase optimization value includes:
determining the phase optimization value according to the first ending phase and the second current phase of the second chirp signal;
and adding the phase optimization value and the second initial phase to obtain a target second initial phase.
2. The phase control method according to claim 1, wherein in a case where the first chirp signal is a first chirp signal in the target data, the determining a first envelope of the first chirp signal includes:
and obtaining a first envelope curve of the first chirp signal according to the first current phase of the first chirp signal and the second current phase of the second chirp signal.
3. The phase control method according to claim 1, wherein the determining the first envelope of the first chirp signal in the case where the first chirp signal is other chirp signal than the first chirp signal in the target data includes:
determining a third initial phase, a third current phase and a third envelope of a third chirp signal, and a first current phase of the first chirp signal, wherein an ending phase of the third chirp signal is the first initial phase of the first chirp signal;
and determining a first envelope of the first chirp signal according to the third initial phase, the third current phase, the third envelope and the first current phase.
4. The phase control method according to claim 1 or 2, wherein the determining a target optimization method according to the relation between the first envelope and a preset value, and optimizing the second initial phase by the target optimization method, includes:
and optimizing the second initial phase according to the first initial phase and the first ending phase of the first chirp signal under the condition that the first envelope is equal to the preset value.
5. A phase control apparatus, comprising:
a determining module configured to determine a chirp signal of target data for data transmission, wherein the target data at least comprises two chirp signals;
an optimization module configured to optimize, for each chirp signal in the target data, a second initial phase of a second chirp signal according to a first envelope of a first chirp signal to realize phase control of the target data in data transmission, wherein a first ending phase of the first chirp signal is the second initial phase of the second chirp signal;
an optimization module configured to determine a first envelope of the first chirp signal;
determining a target optimization mode according to the relation between the first envelope curve and a preset value, and optimizing the second initial phase through the target optimization mode;
an optimizing module configured to determine a phase optimizing value corresponding to the second initial phase and optimize the second initial phase according to the phase optimizing value, if the first envelope is greater than or less than the preset value;
an optimization module configured to determine the phase optimization value based on a first ending phase and a second current phase of the second chirp signal;
and adding the phase optimization value and the second initial phase to obtain a target second initial phase.
6. A non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps of the method according to any of claims 1-4.
7. An electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of the method of any one of claims 1-4.
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