CN109818633A - The signal transmitting method and device synthesized based on SCPC array and symbol space - Google Patents
The signal transmitting method and device synthesized based on SCPC array and symbol space Download PDFInfo
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Abstract
The embodiment of the present invention provides a kind of signal transmitting method and device synthesized based on SCPC array and symbol space, which comprises carries out serial to parallel conversion to information to be sent, generates multidiameter delay code stream；Multiple orthogonal sub-carriers are modulated respectively using multidiameter delay code stream, generate multichannel modulated subcarriers；Multichannel modulated subcarriers are radiated to space respectively using mutiple antennas unit, each antenna element radiates modulated subcarriers all the way, so that the all-wave orthogonal frequency division multiplex OFDM symbol comprising whole subcarrier informations in aerial radiation area.The embodiment of the present invention provides a kind of signal transmitting method and device synthesized based on SCPC array and symbol space, each modulated subcarriers are handled by a transmission channel of emission array inside transmitter, OFDM symbol is in space combination, power supply power consumption needed for making transmitter reach same transmitted power level is minimum, heat dissipation capacity is minimum, its corresponding debugging and maintenance are also most easy.
Description
Technical field
It a kind of is synthesized the present embodiments relate to field of communication technology more particularly to based on SCPC array and symbol space
Signal transmitting method and device.
Background technique
Modern society is in explosive growth for the demand of communication, to realize maximum capacity in limited frequency spectrum resource
Information transmission, develops in the industry orthogonal frequency division multiplexi, is the road N low speed code stream by the high speed information Traffic Decomposition for needing to transmit,
N number of mutually orthogonal subcarrier is modulated respectively, forms so-called orthogonal frequency division multiplexing (Orthogonal Frequency
Division Multiplexing, OFDM) symbol to destination send.Single-carrier modulated mode before being different from, it is this
OFDM symbol includes multiple equally spaced subcarriers, the information transmitted needed for each subcarrier independent bearing, each subcarrier-modulated
The frequency spectrum formed afterwards is overlapped, is separated in receiving end by its orthogonality, extracts information loaded, realizes communication function.
Therefore this is a kind of signal of communication standard of the saving frequency spectrum resource of suitable large capacity information transmission.
Fig. 1 is OFDM symbol generating mode schematic diagram in the prior art, as shown in Figure 1, its core is IFFT module,
OFDM symbol is generated using the method that real-time mathematical calculates, DA is then carried out and is converted to comprising the complete of all modulated subcarriers
Wave ofdm signal is emitted.
But this method directly obtains all-wave OFDM symbol, wherein including multiple carrier components, is accordingly used in emitting
The transmitter of such all-wave ofdm signal necessary strict guarantee during carrying out the processing such as frequency conversion, amplification is linear, avoids sub- load
Intermodulation generation nonlinearity product causes signal distortion between wave, it usually needs carries out more power to non-stage power amplifier and returns
It moves back or linear compensation measure, thus bring consequence is that such transmitter or power-efficient are extremely low, power consumption and heat dissipation pressure
It is big or constitute complicated, equipment debugging and difficult in maintenance.
Summary of the invention
A kind of overcome the above problem the purpose of the embodiment of the present invention is that providing or at least be partially solved the above problem
The signal transmitting method and device synthesized based on SCPC array and symbol space.
In order to solve the above-mentioned technical problem, on the one hand, the embodiment of the present invention provides a kind of based on single carrier per channel SCPC
The signal transmitting method of array and symbol space synthesis, comprising:
Serial to parallel conversion is carried out to information to be sent, generates multidiameter delay code stream；
Multiple orthogonal sub-carriers are modulated respectively using the multidiameter delay code stream, generate multichannel modulated subcarriers；
The multichannel modulated subcarriers are radiated to space respectively using mutiple antennas unit, each antenna element radiation one
Road modulated subcarriers, so that including the all-wave orthogonal frequency division multiplex OFDM symbol of whole subcarrier informations in aerial radiation area
Number.
On the other hand, the embodiment of the present invention, which provides, a kind of is synthesized based on single carrier per channel SCPC array and symbol space
Sender unit, comprising:
Serial to parallel conversion module generates multidiameter delay code stream for carrying out serial to parallel conversion to information to be sent；
Subcarrier-modulated array module, for being adjusted respectively to multiple orthogonal sub-carriers using the multidiameter delay code stream
System generates multichannel modulated subcarriers；
Active antenna emission array module, for using mutiple antennas unit respectively by the multichannel modulated subcarriers to sky
Between radiate, each antenna element radiation modulated subcarriers all the way, so that including whole subcarrier informations in aerial radiation area
All-wave orthogonal frequency division multiplex OFDM symbol.
In another aspect, the embodiment of the present invention provides a kind of electronic equipment, comprising:
Memory and processor, the processor and the memory complete mutual communication by bus；It is described to deposit
Reservoir is stored with the program instruction that can be executed by the processor, and it is above-mentioned that the processor calls described program instruction to be able to carry out
Method.
Another aspect, the embodiment of the present invention provide a kind of non-transient computer readable storage medium, are stored thereon with calculating
Machine program realizes above-mentioned method when the computer program is executed by processor.
The embodiment of the present invention provides a kind of signal transmitting method and device synthesized based on SCPC array and symbol space, hair
Penetrating any position inside machine, there is no the all-view signals comprising whole modulated subcarriers, instead single tune to carry
Wave, each modulated subcarriers from emission array a transmission channel processing and from an antenna element in array antenna to
Space radiation, OFDM symbol is in space combination.The saturation type power amplifier that transmitter can use power-efficient high
Without worrying that it is linear, power supply power consumption needed for reaching same transmitted power level is minimum, heat dissipation capacity is minimum, its corresponding debugging
It is also most easy with safeguarding.
Detailed description of the invention
Fig. 1 is OFDM symbol generating mode schematic diagram in the prior art；
Fig. 2 is the signal transmitting method signal provided in an embodiment of the present invention synthesized based on SCPC array and symbol space
Figure；
Fig. 3 is the principle of the sender unit provided in an embodiment of the present invention synthesized based on SCPC array and symbol space
Block diagram；
Fig. 4 is subcarrier-modulated array module functional block diagram provided in an embodiment of the present invention；
Fig. 5 is active antenna emission array module principle block diagram provided in an embodiment of the present invention；
Fig. 6 is the work of the sender unit provided in an embodiment of the present invention synthesized based on SCPC array and symbol space
Schematic illustration；
Fig. 7 is that serial to parallel conversion provided in an embodiment of the present invention and pilot tone are inserted into functional block diagram；
Fig. 8 is up-conversion array functional block diagram provided in an embodiment of the present invention；
Fig. 9 is that OFDM cyclic suffix provided in an embodiment of the present invention is inserted into functional block diagram；
Figure 10 is that OFDM cyclic suffix provided in an embodiment of the present invention is inserted into timing diagram；
Figure 11 is the structural schematic diagram of electronic equipment provided in an embodiment of the present invention.
Specific embodiment
In order to keep the purposes, technical schemes and advantages of the embodiment of the present invention clearer, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 2 is the signal transmitting method signal provided in an embodiment of the present invention synthesized based on SCPC array and symbol space
Figure, as shown in Fig. 2, the embodiment of the present invention provides a kind of signal transmitting method synthesized based on SCPC array and symbol space,
Executing subject is the sender unit synthesized based on SCPC array and symbol space, hereinafter referred to as sender unit, signal
Emitter can be also possible to a part of transmitter separately as a machine operation, this method comprises:
Step S201, serial to parallel conversion is carried out to information to be sent, generates multidiameter delay code stream；
Step S202, multiple orthogonal sub-carriers are modulated respectively using the multidiameter delay code stream, have generated multichannel
Tune carrier wave；
Step S203, the multichannel modulated subcarriers are radiated to space respectively using mutiple antennas unit, each antenna
Unit radiates modulated subcarriers all the way, so that the all-wave orthogonal frequency division multiplexing comprising whole subcarrier informations in aerial radiation area
Use OFDM symbol.
Specifically, Fig. 3 is the signal transmitting provided in an embodiment of the present invention synthesized based on SCPC array and symbol space
The functional block diagram of device, as shown in figure 3, based on single carrier per channel (Single Carrier Per Channel, SCPC)
Array emitter and OFDM symbol space combination technology, abbreviation SCPC_OFDM_TRANS, the technology are sent out using array multichannel
Penetrate machine, each transmission channel only handles a sub- information carrying number, because of referred to herein as single carrier per channel.The output of each transmission channel swashs
Encourage a bay, the space radiation of whole bay is overlapped mutually in far field, constitute a complete OFDM symbol, from
And realize single carrier per channel array emitter and OFDM symbol space combination.
When signal emits, firstly, carrying out serial to parallel conversion to information to be sent by serial to parallel conversion module, multidiameter delay is generated
Code stream.
Then, multiple orthogonal sub-carriers are adjusted respectively using multidiameter delay code stream by subcarrier-modulated array module
System generates multichannel modulated subcarriers.
Finally, by active antenna emission array module using mutiple antennas unit respectively by multichannel modulated subcarriers to sky
Between radiate, each antenna element radiation modulated subcarriers all the way, so that including whole subcarrier informations in aerial radiation area
All-wave OFDM symbol.
The distinguishing feature of emission process is radiation of the OFDM symbol by mutiple antennas unit in space combination.Each antenna list
Member only radiates a subcarrier, i.e. any one antenna element emitting portion OFDM symbol, all antenna element spokes to space
The intersection for penetrating energy constitutes a complete all-wave OFDM symbol.
Due to only handling a sub-carrier signal using multichannel transmitter and each transmission channel, emitting
All-wave OFDM symbol is not present inside machine, also therefore avoids the stringent limitation to linearity of transmission channel.Inside transmitter not
It needs to treat signalling (namely aforementioned all-wave ofdm signal) and carries out power distribution, each antenna list in transmitting antenna array
Member is motivated by modulated subcarriers independent.
Fig. 4 is subcarrier-modulated array module functional block diagram provided in an embodiment of the present invention, as shown in figure 4, the present invention is real
Example is applied using subcarrier-modulated array instead of the single modulator in general emission system, subcarrier-modulated array module is by one
A reference clock source, N number of frequency synthesizer of phase locking, N number of subcarrier modulator composition, each subcarrier modulator receive the road N simultaneously
Row code stream is wherein used as modulation code all the way, and subcarrier-modulated standard can be any standard of PSK, QAM or other, and the road N is modulated
Subcarrier is exported without merging treatment, independently, motivates the corresponding channel of active antenna emission array.
Fig. 5 is active antenna emission array module principle block diagram provided in an embodiment of the present invention, as shown in figure 5, active day
Line emission array to space radiating radio signal, expectation power level is formed in required spatial dimension include whole
The all-wave ofdm signal of tune carrier wave, receives for communication receiver and information extraction is handled.It is different from existing active phased array
Emission system, active antenna array used in the embodiment of the present invention have N number of input port, and each port inputs a tune
Carrier wave, each channel only amplifies a modulated subcarriers in battle array, and each antenna element only radiates a tune
Carrier wave.Array is without components such as transmitting signal power distribution network, phase shifters comprising conventional phased array VS .NET Prerequisites.
The embodiment of the present invention provides a kind of signal transmitting method synthesized based on SCPC array and symbol space, in transmitter
The all-view signal comprising whole modulated subcarriers instead single modulated subcarriers are not present in portion any position, each
Modulated subcarriers are from the processing of a transmission channel of emission array and from an antenna element in array antenna to space spoke
It penetrates, OFDM symbol is in space combination.Transmitter can using the high saturation type power amplifier of power-efficient without
Worry that it is linear, power supply power consumption needed for reaching same transmitted power level is minimum, heat dissipation capacity is minimum, its corresponding debugging and maintenance
Also most easy.
On the basis of the above embodiments, further, described that serial to parallel conversion is carried out to information to be sent, generate multichannel simultaneously
Row code stream, specifically includes:
Serial to parallel conversion is carried out to information to be sent, and is inserted into pilot code, generates multidiameter delay code stream.
Specifically, Fig. 6 is the signal transmitting provided in an embodiment of the present invention synthesized based on SCPC array and symbol space
The operation principle schematic diagram of device generates the mistake of multidiameter delay code stream as shown in fig. 6, carrying out serial to parallel conversion to information to be sent
Cheng Zhong, the message bit stream for needing to send are first converted to n-bit parallel stream, send out parallel with the m bit Pilot code composition road N
Code stream is sent, this road N sends code stream and is modulated respectively to N number of orthogonal sub-carriers, and modulated subcarriers are not synthesized, independently put
Greatly, N number of antenna element is then motivated to radiate to space respectively, to obtained in aerial radiation area comprising whole subcarrier informations
All-wave OFDM symbol.The receiving device of Correspondent Node can carry out receiving using conventional OFDM receiver and information demodulates.
Fig. 7 is that serial to parallel conversion provided in an embodiment of the present invention and pilot tone are inserted into functional block diagram, as shown in fig. 7, with existing
OFDM transmitter is similar, for realizing to information flow to be sent serial to parallel conversion and pilot tone insertion, unlike, the present invention implement
Example is insensitive for the position of pilot tone insertion parallel stream, because pilot sub-carrier can appoint on demand in subcarrier-modulated array
Meaning setting.
The embodiment of the present invention provides a kind of signal transmitting method synthesized based on SCPC array and symbol space, in transmitter
The all-view signal comprising whole modulated subcarriers instead single modulated subcarriers are not present in portion any position, each
Modulated subcarriers are from the processing of a transmission channel of emission array and from an antenna element in array antenna to space spoke
It penetrates, OFDM symbol is in space combination.Transmitter can using the high saturation type power amplifier of power-efficient without
Worry that it is linear, power supply power consumption needed for reaching same transmitted power level is minimum, heat dissipation capacity is minimum, its corresponding debugging and maintenance
Also most easy.
On the basis of the above various embodiments, further, it is described using mutiple antennas unit respectively by the multichannel
Before tune carrier wave is radiated to space, further includes:
Frequency transformation is carried out to per modulated subcarriers all the way.
Specifically, sender unit further includes frequency-variable module, respectively that multichannel is modulated using mutiple antennas unit
Before subcarrier is radiated to space, frequency transformation is carried out to per modulated subcarriers all the way by frequency-variable module.
The embodiment of the present invention uses subcarrier-modulated array instead of the single modulator in general emission system, subcarrier
Modulation array module is made of a reference clock source, N number of frequency synthesizer of phase locking, N number of subcarrier modulator, each subcarrier
Modulator receive the road N parallel stream wherein all the way as modulation code, subcarrier-modulated standard can be PSK, QAM or other times
Meaning standard, the road N modulated subcarriers are exported without merging treatment, independently, and the correspondence of excitation active antenna emission array is logical
Road.
Fig. 8 is up-conversion array functional block diagram provided in an embodiment of the present invention, as shown in figure 8, if being applied to high frequency range
Emission system when, the road N modulated subcarriers can first pass through upconversion process, by N subcarriers frequency translation to required work
Make frequency band.
The embodiment of the present invention provides a kind of signal transmitting method synthesized based on SCPC array and symbol space, in transmitter
The all-view signal comprising whole modulated subcarriers instead single modulated subcarriers are not present in portion any position, each
Modulated subcarriers are from the processing of a transmission channel of emission array and from an antenna element in array antenna to space spoke
It penetrates, OFDM symbol is in space combination.Transmitter can using the high saturation type power amplifier of power-efficient without
Worry that it is linear, power supply power consumption needed for reaching same transmitted power level is minimum, heat dissipation capacity is minimum, its corresponding debugging and maintenance
Also most easy.
On the basis of the above various embodiments, further, the cyclic prefix of the OFDM symbol is by controlling and prolonging
What the emission duration of long each modulated subcarriers was formed.
Specifically, Fig. 3 is the signal transmitting provided in an embodiment of the present invention synthesized based on SCPC array and symbol space
The functional block diagram of device, as shown in figure 3, sender unit further includes Symbol Timing module, cyclic prefix is OFDM modulating wave
Shape is to the important technical of anti-multipath jamming, and in the embodiment of the present invention, the addition of cyclic prefix only needs to extend subcarrier tune
The working time of array and active antenna emission array processed is allowed to slightly larger than the symbol width after message bit stream serial to parallel conversion
, wherein being greater than the wide time span of parallel code is circulating prefix-length, cyclic prefix determines the anti-more of output signal
Diameter ability is accurately set by Symbol Timing module.
In addition, it is also necessary to cyclic suffix be added, Fig. 9 is that OFDM cyclic suffix provided in an embodiment of the present invention is inserted into principle frame
Figure, Figure 10 are that OFDM cyclic suffix provided in an embodiment of the present invention is inserted into timing diagram.
The embodiment of the present invention provides a kind of signal transmitting method synthesized based on SCPC array and symbol space, in transmitter
The all-view signal comprising whole modulated subcarriers instead single modulated subcarriers are not present in portion any position, each
Modulated subcarriers are from the processing of a transmission channel of emission array and from an antenna element in array antenna to space spoke
It penetrates, OFDM symbol is in space combination.Transmitter can using the high saturation type power amplifier of power-efficient without
Worry that it is linear, power supply power consumption needed for reaching same transmitted power level is minimum, heat dissipation capacity is minimum, its corresponding debugging and maintenance
Also most easy.
Fig. 3 is the principle of the sender unit provided in an embodiment of the present invention synthesized based on SCPC array and symbol space
Block diagram, as shown in figure 3, the embodiment of the present invention provides a kind of sender unit synthesized based on SCPC array and symbol space,
For executing any of the above-described method as described in the examples, meter serial to parallel conversion module, subcarrier-modulated array module are specifically included
With active antenna emission array module, in which:
Serial to parallel conversion module generates multidiameter delay code stream for carrying out serial to parallel conversion to information to be sent；Subcarrier-modulated
Array module generates multichannel tune for being modulated respectively to multiple orthogonal sub-carriers using the multidiameter delay code stream
Carrier wave；Active antenna emission array module, for using mutiple antennas unit respectively by the multichannel modulated subcarriers to space
Radiation, each antenna element radiate modulated subcarriers all the way, so that including whole subcarrier informations in aerial radiation area
All-wave orthogonal frequency division multiplex OFDM symbol.
Specifically, it is based on the array emitter of single carrier per channel (Single Carrier Per Channel, SCPC)
With OFDM symbol space combination technology, abbreviation SCPC_OFDM_TRANS, which uses array multichannel transmitter, every
A transmission channel only handles a sub- information carrying number, because of referred to herein as single carrier per channel.The output drive of each transmission channel one
The space radiation of bay, whole bays is overlapped mutually in far field, a complete OFDM symbol is constituted, to realize
Single carrier per channel array emitter and OFDM symbol space combination.
When signal emits, firstly, carrying out serial to parallel conversion to information to be sent by serial to parallel conversion module, multidiameter delay is generated
Code stream.
Then, multiple orthogonal sub-carriers are adjusted respectively using multidiameter delay code stream by subcarrier-modulated array module
System generates multichannel modulated subcarriers.
Finally, by active antenna emission array module using mutiple antennas unit respectively by multichannel modulated subcarriers to sky
Between radiate, each antenna element radiation modulated subcarriers all the way, so that including whole subcarrier informations in aerial radiation area
All-wave OFDM symbol.
The distinguishing feature of emission process is radiation of the OFDM symbol by mutiple antennas unit in space combination.Each antenna list
Member only radiates a subcarrier, i.e. any one antenna element emitting portion OFDM symbol, all antenna element spokes to space
The intersection for penetrating energy constitutes a complete all-wave OFDM symbol.
Due to only handling a sub-carrier signal using multichannel transmitter and each transmission channel, emitting
All-wave OFDM symbol is not present inside machine, also therefore avoids the stringent limitation to linearity of transmission channel.Inside transmitter not
It needs to treat signalling (namely aforementioned all-wave ofdm signal) and carries out power distribution, each antenna list in transmitting antenna array
Member is motivated by modulated subcarriers independent.
Fig. 4 is subcarrier-modulated array module functional block diagram provided in an embodiment of the present invention, as shown in figure 4, the present invention is real
Example is applied using subcarrier-modulated array instead of the single modulator in general emission system, subcarrier-modulated array module is by one
A reference clock source, N number of frequency synthesizer of phase locking, N number of subcarrier modulator composition, each subcarrier modulator receive the road N simultaneously
Row code stream is wherein used as modulation code all the way, and subcarrier-modulated standard can be any standard of PSK, QAM or other, and the road N is modulated
Subcarrier is exported without merging treatment, independently, motivates the corresponding channel of active antenna emission array.
Fig. 5 is active antenna emission array module principle block diagram provided in an embodiment of the present invention, as shown in figure 5, active day
Line emission array to space radiating radio signal, expectation power level is formed in required spatial dimension include whole
The all-wave ofdm signal of tune carrier wave, receives for communication receiver and information extraction is handled.It is different from existing active phased array
Emission system, active antenna array used in the embodiment of the present invention have N number of input port, and each port inputs a tune
Carrier wave, each channel only amplifies a modulated subcarriers in battle array, and each antenna element only radiates a tune
Carrier wave.Array is without components such as transmitting signal power distribution network, phase shifters comprising conventional phased array VS .NET Prerequisites.
The embodiment of the present invention provides a kind of sender unit synthesized based on SCPC array and symbol space, in transmitter
The all-view signal comprising whole modulated subcarriers instead single modulated subcarriers are not present in portion any position, each
Modulated subcarriers are from the processing of a transmission channel of emission array and from an antenna element in array antenna to space spoke
It penetrates, OFDM symbol is in space combination.Transmitter can using the high saturation type power amplifier of power-efficient without
Worry that it is linear, power supply power consumption needed for reaching same transmitted power level is minimum, heat dissipation capacity is minimum, its corresponding debugging and maintenance
Also most easy.
On the basis of the above embodiments, further, described that serial to parallel conversion is carried out to information to be sent, generate multichannel simultaneously
Row code stream, specifically includes:
Serial to parallel conversion is carried out to information to be sent, and is inserted into pilot code, generates multidiameter delay code stream.
Specifically, Fig. 6 is the signal transmitting provided in an embodiment of the present invention synthesized based on SCPC array and symbol space
The operation principle schematic diagram of device generates the mistake of multidiameter delay code stream as shown in fig. 6, carrying out serial to parallel conversion to information to be sent
Cheng Zhong, the message bit stream for needing to send are first converted to n-bit parallel stream, send out parallel with the m bit Pilot code composition road N
Code stream is sent, this road N sends code stream and is modulated respectively to N number of orthogonal sub-carriers, and modulated subcarriers are not synthesized, independently put
Greatly, N number of antenna element is then motivated to radiate to space respectively, to obtained in aerial radiation area comprising whole subcarrier informations
All-wave OFDM symbol.The receiving device of Correspondent Node can carry out receiving using conventional OFDM receiver and information demodulates.
Fig. 7 is that serial to parallel conversion provided in an embodiment of the present invention and pilot tone are inserted into functional block diagram, as shown in fig. 7, with existing
OFDM transmitter is similar, for realizing to information flow to be sent serial to parallel conversion and pilot tone insertion, unlike, the present invention implement
Example is insensitive for the position of pilot tone insertion parallel stream, because pilot sub-carrier can appoint on demand in subcarrier-modulated array
Meaning setting.
The embodiment of the present invention provides a kind of sender unit synthesized based on SCPC array and symbol space, in transmitter
The all-view signal comprising whole modulated subcarriers instead single modulated subcarriers are not present in portion any position, each
Modulated subcarriers are from the processing of a transmission channel of emission array and from an antenna element in array antenna to space spoke
It penetrates, OFDM symbol is in space combination.Transmitter can using the high saturation type power amplifier of power-efficient without
Worry that it is linear, power supply power consumption needed for reaching same transmitted power level is minimum, heat dissipation capacity is minimum, its corresponding debugging and maintenance
Also most easy.
On the basis of the above various embodiments, further, described device further includes frequency-variable module；
The frequency-variable module is used to carry out frequency transformation to per modulated subcarriers all the way.
Specifically, sender unit further includes frequency-variable module, respectively that multichannel is modulated using mutiple antennas unit
Before subcarrier is radiated to space, frequency transformation is carried out to per modulated subcarriers all the way by frequency-variable module.
The embodiment of the present invention uses subcarrier-modulated array instead of the single modulator in general emission system, subcarrier
Modulation array module is made of a reference clock source, N number of frequency synthesizer of phase locking, N number of subcarrier modulator, each subcarrier
Modulator receive the road N parallel stream wherein all the way as modulation code, subcarrier-modulated standard can be PSK, QAM or other times
Meaning standard, the road N modulated subcarriers are exported without merging treatment, independently, and the correspondence of excitation active antenna emission array is logical
Road.
Fig. 8 is up-conversion array functional block diagram provided in an embodiment of the present invention, as shown in figure 8, if being applied to high frequency range
Emission system when, the road N modulated subcarriers can first pass through upconversion process, by N subcarriers frequency translation to required work
Make frequency band.
The embodiment of the present invention provides a kind of sender unit synthesized based on SCPC array and symbol space, in transmitter
The all-view signal comprising whole modulated subcarriers instead single modulated subcarriers are not present in portion any position, each
Modulated subcarriers are from the processing of a transmission channel of emission array and from an antenna element in array antenna to space spoke
It penetrates, OFDM symbol is in space combination.Transmitter can using the high saturation type power amplifier of power-efficient without
Worry that it is linear, power supply power consumption needed for reaching same transmitted power level is minimum, heat dissipation capacity is minimum, its corresponding debugging and maintenance
Also most easy.
On the basis of the above various embodiments, further, the cyclic prefix of the OFDM symbol is by controlling and prolonging
What the emission duration of long each modulated subcarriers was formed.
Specifically, Fig. 3 is the signal transmitting provided in an embodiment of the present invention synthesized based on SCPC array and symbol space
The functional block diagram of device, as shown in figure 3, sender unit further includes Symbol Timing module, cyclic prefix is OFDM modulating wave
Shape is to the important technical of anti-multipath jamming, and in the embodiment of the present invention, the addition of cyclic prefix only needs to extend subcarrier tune
The working time of array and active antenna emission array processed is allowed to slightly larger than the symbol width after message bit stream serial to parallel conversion
, wherein being greater than the wide time span of parallel code is circulating prefix-length, cyclic prefix determines the anti-more of output signal
Diameter ability is accurately set by Symbol Timing module.
In addition, it is also necessary to cyclic suffix be added, Fig. 9 is that OFDM cyclic suffix provided in an embodiment of the present invention is inserted into principle frame
Figure, Figure 10 are that OFDM cyclic suffix provided in an embodiment of the present invention is inserted into timing diagram.
The embodiment of the present invention provides a kind of sender unit synthesized based on SCPC array and symbol space, in transmitter
The all-view signal comprising whole modulated subcarriers instead single modulated subcarriers are not present in portion any position, each
Modulated subcarriers are from the processing of a transmission channel of emission array and from an antenna element in array antenna to space spoke
It penetrates, OFDM symbol is in space combination.Transmitter can using the high saturation type power amplifier of power-efficient without
Worry that it is linear, power supply power consumption needed for reaching same transmitted power level is minimum, heat dissipation capacity is minimum, its corresponding debugging and maintenance
Also most easy.
Figure 11 is the structural schematic diagram of electronic equipment provided in an embodiment of the present invention, and as shown in figure 11, the equipment includes:
Processor 1101, memory 1102 and bus 1103；
Wherein, processor 1101 and memory 1102 complete mutual communication by the bus 1103；
Processor 1101 is used to call the program instruction in memory 1102, is provided with executing above-mentioned each method embodiment
Method, for example,
Serial to parallel conversion is carried out to information to be sent, generates multidiameter delay code stream；
Multiple orthogonal sub-carriers are modulated respectively using the multidiameter delay code stream, generate multichannel modulated subcarriers；
The multichannel modulated subcarriers are radiated to space respectively using mutiple antennas unit, each antenna element radiation one
Road modulated subcarriers, so that including the all-wave orthogonal frequency division multiplex OFDM symbol of whole subcarrier informations in aerial radiation area
Number.
The embodiment of the present invention provides a kind of computer program product, and the computer program product is non-transient including being stored in
Computer program on computer readable storage medium, the computer program include program instruction, when described program instructs quilt
When computer executes, computer is able to carry out method provided by above-mentioned each method embodiment, for example,
Serial to parallel conversion is carried out to information to be sent, generates multidiameter delay code stream；
Multiple orthogonal sub-carriers are modulated respectively using the multidiameter delay code stream, generate multichannel modulated subcarriers；
The multichannel modulated subcarriers are radiated to space respectively using mutiple antennas unit, each antenna element radiation one
Road modulated subcarriers, so that including the all-wave orthogonal frequency division multiplex OFDM symbol of whole subcarrier informations in aerial radiation area
Number.
The embodiment of the present invention provides a kind of non-transient computer readable storage medium, the non-transient computer readable storage
Medium storing computer instruction, the computer instruction make the computer execute side provided by above-mentioned each method embodiment
Method, for example,
Serial to parallel conversion is carried out to information to be sent, generates multidiameter delay code stream；
Multiple orthogonal sub-carriers are modulated respectively using the multidiameter delay code stream, generate multichannel modulated subcarriers；
The multichannel modulated subcarriers are radiated to space respectively using mutiple antennas unit, each antenna element radiation one
Road modulated subcarriers, so that including the all-wave orthogonal frequency division multiplex OFDM symbol of whole subcarrier informations in aerial radiation area
Number.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
The embodiments such as device and equipment described above are only schematical, wherein described be used as separate part description
Unit may or may not be physically separated, component shown as a unit may or may not be
Physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to the actual needs
Some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying
In the case where creative labor, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of signal transmitting method synthesized based on single carrier per channel SCPC array and symbol space, which is characterized in that packet
It includes:
Serial to parallel conversion is carried out to information to be sent, generates multidiameter delay code stream；
Multiple orthogonal sub-carriers are modulated respectively using the multidiameter delay code stream, generate multichannel modulated subcarriers；
The multichannel modulated subcarriers are radiated to space respectively using mutiple antennas unit, each antenna element radiates all the way
Tune carrier wave, so that the all-wave orthogonal frequency division multiplex OFDM symbol comprising whole subcarrier informations in aerial radiation area.
2. being generated more the method according to claim 1, wherein described carry out serial to parallel conversion to information to be sent
Road parallel stream, specifically includes:
Serial to parallel conversion is carried out to information to be sent, and is inserted into pilot code, generates multidiameter delay code stream.
3. the method according to claim 1, wherein it is described using mutiple antennas unit respectively by the multichannel
Before tune carrier wave is radiated to space, further includes:
Frequency transformation is carried out to per modulated subcarriers all the way.
4. the method according to claim 1, wherein the cyclic prefix of the OFDM symbol is by controlling and prolonging
What the emission duration of long each modulated subcarriers was formed.
5. a kind of sender unit synthesized based on single carrier per channel SCPC array and symbol space, which is characterized in that packet
It includes:
Serial to parallel conversion module generates multidiameter delay code stream for carrying out serial to parallel conversion to information to be sent；
Subcarrier-modulated array module, for being modulated respectively to multiple orthogonal sub-carriers using the multidiameter delay code stream,
Generate multichannel modulated subcarriers；
Active antenna emission array module, for using mutiple antennas unit respectively by the multichannel modulated subcarriers to space spoke
It penetrates, each antenna element radiates modulated subcarriers all the way, so that including the complete of whole subcarrier informations in aerial radiation area
Wave orthogonal frequency division multiplex OFDM symbol.
6. device according to claim 5, which is characterized in that it is described that serial to parallel conversion is carried out to information to be sent, it generates more
Road parallel stream, specifically includes:
Serial to parallel conversion is carried out to information to be sent, and is inserted into pilot code, generates multidiameter delay code stream.
7. device according to claim 5, which is characterized in that described device further includes frequency-variable module；
The frequency-variable module is used to carry out frequency transformation to per modulated subcarriers all the way.
8. device according to claim 5, which is characterized in that the cyclic prefix of the OFDM symbol is by controlling and prolonging
What the emission duration of long each modulated subcarriers was formed.
9. a kind of electronic equipment characterized by comprising
Memory and processor, the processor and the memory complete mutual communication by bus；The memory
It is stored with the program instruction that can be executed by the processor, the processor calls described program instruction to be able to carry out right such as and wants
Seek 1 to 4 any method.
10. a kind of non-transient computer readable storage medium, is stored thereon with computer program, which is characterized in that when the meter
When calculation machine program is executed by processor, the method as described in Claims 1-4 is any is realized.
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