CN104079305B - Emitter, receiving system and the transmission system of broadband signal - Google Patents
Emitter, receiving system and the transmission system of broadband signal Download PDFInfo
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Abstract
The emitter, receiving system and the transmission system that the invention discloses a kind of broadband signal, belong to signal transmission technology field. The emitter of broadband signal comprises at least two narrow emission devices that connect successively, for launching broadband signal to be transmitted; Wherein, the effective bandwidth region of the frequency spectrum of at least two narrow emission devices after multiplying each other is greater than the ghz area of broadband signal to be transmitted. The receiving system of broadband signal comprises at least two narrow-band reception devices that connect successively, for receiving broadband signal to be transmitted; Wherein, the effective bandwidth region of the frequency spectrum of at least two narrow-band reception devices after multiplying each other is greater than the ghz area of broadband signal to be transmitted. At least two narrowband devices that the present invention is greater than the ghz area of broadband signal to be transmitted by the effective bandwidth region after utilizing frequency spectrum to multiply each other transmit broadband signal to be transmitted, applicable to the transmission of any broadband signal, reduce costs; Because narrowband device is two and above any amount, thereby there is higher flexibility.
Description
Technical field
The present invention relates to signal transmission technology field, particularly a kind of emitter of broadband signal, receptionDevice and transmission system.
Background technology
Along with scientific and technological development, information transmission quality is had higher requirement. Due to system works bandwidthInformation transmission quality has been played to Main Function, therefore, the importance of system works bandwidth in information-intensive societyDay by day highlight, the correlative study of wideband transmit technology and application have also become current focus. And support wideThe transmitting of band signal, the transmission system of reception are to realize the key of wideband transmit.
In prior art, the emitter of broadband signal adopts broadband emission device, the reception dress of broadband signalPut and adopt broadband reception device. Due to the applied frequency range difference of different broadband devices, thereby need according to treatingThe frequency range customization of transmission broadband signal meets the broadband of the system frequency response requirement of this broadband signal to be transmitted of transmitting and sends outThe reception broadband device that emitter part and the satisfied system frequency response that receives this broadband signal to be transmitted require, thus logicalCross the broadband emission device of customization and receive broadband device and treat transmission broadband signal and launch and receive.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
Because prior art is in the time realizing the transmitting of broadband signal and receive, all adopt broadband device, because formingThis is higher, and mode is more single. In addition, owing to meeting according to the frequency range customization of broadband signal to be transmittedLaunch the broadband emission device that the system frequency response of this broadband signal to be transmitted requires and meet and receive that this is to be transmitted wideThe reception broadband device that the system frequency response of band signal requires, not only cost is higher, and flexibility is not high.
Summary of the invention
In order to solve the problem of prior art, the embodiment of the present invention provide a kind of broadband signal emitter,Receiving system and transmission system. Described technical scheme is as follows:
First aspect, provides a kind of emitter of broadband signal, described emitter to comprise successively and has connectedAt least two narrow emission devices, for launching broadband signal to be transmitted;
Wherein, described in the effective bandwidth region of the frequency spectrum of described at least two narrow emission devices after multiplying each other is greater thanThe ghz area of broadband signal to be transmitted.
Preferably, the frequency response centre frequency of described at least two narrow emission devices and frequency response bandwidth meet as followsRelation:
f11-Δf11/2≤f10-Δf10/2；
f1i-f1i-1=Δf1i/2+Δf1i-1/2；
f1m-Δf1m/2≥f10+Δf10/2；
Wherein, described f11For the frequency response centre frequency of first narrow emission device, described Δ f11For describedThe frequency response bandwidth of a narrow emission device, described f10For the frequency response centre frequency of described broadband signal to be transmitted,Described Δ f10For the frequency response bandwidth of described broadband signal to be transmitted, described f1iIt is the frequency of i narrow emission deviceRing centre frequency, described Δ f1iBe the frequency response bandwidth of i narrow emission device, described f1mBe that m is individual narrowThe frequency response centre frequency of tape transmitter part, described Δ f1mBe the frequency response bandwidth of m narrow emission device, instituteThe number of stating m and be the narrow emission device that the emitter of described broadband signal comprises, described i is positive integer,And 1 < i < m.
On the other hand, provide a kind of receiving system of broadband signal, described receiving system comprises successively and connectingAt least two narrow-band reception devices, for receiving broadband signal to be transmitted;
Wherein, described in the effective bandwidth region of the frequency spectrum of described at least two narrow-band reception devices after multiplying each other is greater thanThe ghz area of broadband signal to be transmitted.
Preferably, the frequency response centre frequency of described at least two narrow-band reception devices and frequency response bandwidth meet as followsRelation:
f21-Δf21/2≤f20-Δf20/2；
f2j-f2j-1=Δf2j/2+Δf2j-1/2；
f2n+Δf2n/2≥f20+Δf20/2；
Wherein, described f21For the frequency response centre frequency of first narrow-band reception device, described Δ f21For describedThe frequency response bandwidth of a narrow-band reception device, described f20For the frequency response centre frequency of broadband signal to be transmitted, instituteState Δ f20For the frequency response bandwidth of described broadband signal to be transmitted, described f2jIt is the frequency response of j narrow-band reception deviceCentre frequency, described Δ f2jFor the frequency response bandwidth of described j narrow-band reception device, described f2nBe that n is individual narrowWith the frequency response centre frequency of receiving device, described Δ f2nBe the frequency response bandwidth of n narrow-band reception device, described inN is the number of the narrow-band reception device that comprises of the receiving system of described broadband signal, and described j is positive integer, and1<j<n。
Again on the one hand, also provide a kind of transmission system of broadband signal, described system comprises broadband signalThe receiving system of emitter and broadband signal;
The emitter of described broadband signal comprises at least two narrow emission devices that connect successively, for sending outPenetrate broadband signal to be transmitted, the receiving system of described broadband signal is for receiving the transmitting dress of described broadband signalPut the broadband signal of transmitting;
Wherein, described in the effective bandwidth region of the frequency spectrum of described at least two narrow emission devices after multiplying each other is greater thanThe ghz area of broadband signal to be transmitted.
Preferably, the frequency response centre frequency of described at least two narrow emission devices and frequency response bandwidth meet as followsRelation:
f11-Δf11/2≤f10-Δf10/2；
f1i-f1i-1=Δf1i/2+Δf1i-1/2；
f1m-Δf1m/2≥f10+Δf10/2；
Wherein, described f11For the frequency response centre frequency of first narrow emission device, described Δ f11For describedThe frequency response bandwidth of a narrow emission device, described f10For the frequency response centre frequency of described broadband signal to be transmitted,Described Δ f10For the frequency response bandwidth of described broadband signal to be transmitted, described f1iIt is the frequency of i narrow emission deviceRing centre frequency, described Δ f1iBe the frequency response bandwidth of i narrow emission device, described f1mBe that m is individual narrowThe frequency response centre frequency of tape transmitter part, described Δ f1mBe the frequency response bandwidth of m narrow emission device, instituteThe number of stating m and be the narrow emission device that the emitter of described broadband signal comprises, described i is positive integer,And 1 < i < m.
Preferably, the receiving system of described broadband signal comprises at least two narrow-band reception devices that connect successively;
Wherein, described in the effective bandwidth region of the frequency spectrum of described at least two narrow-band reception devices after multiplying each other is greater thanThe ghz area of broadband signal to be transmitted.
Preferably, the frequency response centre frequency of described at least two narrow-band reception devices and frequency response bandwidth meet as followsRelation:
f31-Δf31/2≤f30-Δf30/2；
f3p-f3p-1=Δf3p/2+Δf3p-1/2；
f3q+Δf3q/2≥f30+Δf30/2；
Wherein, described f31For the frequency response centre frequency of first narrow-band reception device, described Δ f31For describedThe frequency response bandwidth of a narrow-band reception device, described f30For the broadband of the emitter transmitting of described broadband signalThe frequency response centre frequency of signal, described Δ f30For the frequency of the broadband signal of the emitter transmitting of described broadband signalRing bandwidth, described f3pBe the frequency response centre frequency of p narrow-band reception device, described Δ f3pFor described pThe frequency response bandwidth of individual narrow-band reception device, described f3qBe the frequency response centre frequency of q narrow-band reception device,Described Δ f3qBe the frequency response bandwidth of q narrow-band reception device, the receiving system that described q is described broadband signalThe number of the narrow-band reception device comprising, described p is positive integer, and 1 < p < q.
A kind of transmission system of broadband signal is also provided, described system comprise broadband signal emitter andThe receiving system of broadband signal;
The receiving system of described broadband signal comprises at least two narrow-band reception devices that connect successively, for connecingReceive broadband signal to be transmitted; The emitter of described broadband signal is used for launching described broadband signal to be transmitted;
Wherein, described in the effective bandwidth region of the frequency spectrum of described at least two narrow-band reception devices after multiplying each other is greater thanThe ghz area of broadband signal to be transmitted.
Preferably, the frequency response centre frequency of described at least two narrow-band reception devices and frequency response bandwidth meet as followsRelation:
f21-Δf21/2≤f20-Δf20/2；
f2j-f2j-1=Δf2j/2+Δf2j-1/2；
f2n+Δf2n/2≥f20+Δf20/2；
Wherein, described f21For the frequency response centre frequency of first narrow-band reception device, described Δ f21For describedThe frequency response bandwidth of a narrow-band reception device, described f20For the frequency response centre frequency of broadband signal to be transmitted, instituteState Δ f20For the frequency response bandwidth of described broadband signal to be transmitted, described f2jIt is the frequency response of j narrow-band reception deviceCentre frequency, described Δ f2jFor the frequency response bandwidth of described j narrow-band reception device, described f2nBe that n is individual narrowWith the frequency response centre frequency of receiving device, described Δ f2nBe the frequency response bandwidth of n narrow-band reception device, described inN is the number of the narrow-band reception device that comprises of the receiving system of described broadband signal, and described j is positive integer, and1<j<n。
Preferably, the emitter of described broadband signal comprises at least two narrow emission devices that connect successively;
Wherein, described in the effective bandwidth region of the frequency spectrum of described at least two narrow emission devices after multiplying each other is greater thanThe ghz area of broadband signal to be transmitted.
Preferably, the frequency response centre frequency of described at least two narrow emission devices and frequency response bandwidth meet as followsRelation:
f41-Δf41/2≤f40-Δf40/2；
f4h-f4h-1=Δf4h/2+Δf4h-1/2；
f4k-Δf4k/2≥f40+Δf40/2；
Wherein, described f41For the frequency response centre frequency of first narrow emission device, described Δ f41For describedThe frequency response bandwidth of a narrow emission device, described f40For the frequency response centre frequency of described broadband signal to be transmitted,Described Δ f40For the frequency response bandwidth of described broadband signal to be transmitted, described f4hBe h narrow emission deviceFrequency response centre frequency, described Δ f4hBe the frequency response bandwidth of h narrow emission device, described f4kIt is kThe frequency response centre frequency of narrow emission device, described Δ f4kBe the frequency response bandwidth of k narrow emission device, instituteThe number of stating k and be the narrow emission device that the emitter of described broadband signal comprises, described h is positive integer,And 1 < h < k.
A kind of transmission system of broadband signal is also provided, and described system comprises for transmission broadband signal extremelyFew two narrowband devices, the effective bandwidth region after the frequency spectrum of described at least two narrowband devices multiplies each other is greater than treatsThe ghz area of transmission broadband signal;
Wherein, at least one narrowband device in described at least two narrowband devices is used for launching described to be transmittedBroadband signal, remaining narrowband device is for receiving the broadband signal of described at least one narrowband device transmitting.
Preferably, the frequency response centre frequency of described at least two narrowband devices and frequency response bandwidth meet following relation:
f51-Δf51/2≤f50-Δf50/2；
f5x-f5x-1=Δf5x/2+Δf5x-1/2；
f5y+Δf5y/2≥f50+Δf50/2；
Wherein, described f51For the frequency response centre frequency of first narrowband device, described Δ f51For described firstThe frequency response bandwidth of narrowband device, described f50For the frequency response centre frequency of described broadband signal to be transmitted, described Δ f50For the frequency response bandwidth of described broadband signal to be transmitted, described f5xBe the frequency response centre frequency of x narrowband device,Described Δ f5xFor the frequency response bandwidth of described x narrowband device, described f5yIt is the frequency response of y narrowband deviceCentre frequency, described Δ f5yFor the frequency response bandwidth of described y narrowband device, described y is that described system comprisesThe number of narrowband device, described x is positive integer, and 1 < x < y.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
The ghz area that is greater than broadband signal to be transmitted by the effective bandwidth region after utilizing frequency spectrum to multiply each other extremelyFew two transmitting narrowband devices are launched broadband signal to be transmitted, and/or, the effective bandwidth after utilizing frequency spectrum to multiply each otherAt least two reception narrowband devices that region is greater than the ghz area of broadband signal to be transmitted receive broadband to be transmittedSignal, goes for the transmission of any broadband signal, and because the cost of narrowband device is lower, thereby canTo reduce the cost of broadband signal transmission; In addition, because narrowband device can be two or moreMeaning quantity, thereby there is higher flexibility.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, institute in describing embodiment belowNeed the accompanying drawing using to be briefly described, apparently, the accompanying drawing in the following describes is only the present inventionSome embodiment, for those of ordinary skill in the art, do not paying under the prerequisite of creative work,Can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the emitter of a kind of broadband signal of providing of the embodiment of the present invention one;
Fig. 2 is the narrowband device that provides of the embodiment of the present invention one and the frequency response schematic diagram of broadband signal to be transmitted;
Fig. 3 is the structural representation of the emitter example of a kind of broadband signal of providing of the embodiment of the present invention one;
Fig. 4 is the structural representation of the receiving system of a kind of broadband signal of providing of the embodiment of the present invention two;
Fig. 5 is the structural representation of the receiving system example of a kind of broadband signal of providing of the embodiment of the present invention two;
Fig. 6 is the structural representation of the transmission system of a kind of broadband signal of providing of the embodiment of the present invention three;
Fig. 7 is the structural representation of the transmission system of the another kind of broadband signal that provides of the embodiment of the present invention three;
Fig. 8 is the structural representation of the transmission system of a kind of broadband signal of providing of the embodiment of the present invention four;
Fig. 9 is the structural representation of the transmission system of the another kind of broadband signal that provides of the embodiment of the present invention four;
Figure 10 is the structural representation of the transmission system of a kind of broadband signal of providing of the embodiment of the present invention five;
Figure 11 is the structural representation of the transmission system example of a kind of broadband signal of providing of the embodiment of the present invention fiveFigure.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present inventionEmbodiment is described in further detail.
Embodiment mono-
The present embodiment provides a kind of emitter of broadband signal, referring to Fig. 1, and the transmitting dress of this broadband signalPut and comprise at least two narrow emission devices 11 that connect successively, for launching broadband signal to be transmitted;
Wherein, the effective bandwidth region of the frequency spectrum of these at least two narrow emission devices 11 after multiplying each other is greater than to be passedThe ghz area of defeated broadband signal.
Frequency response schematic diagram with narrow emission device and broadband signal to be transmitted is illustrated in figure 2 example, shown in 1Lines are the frequency response of each narrow emission device, the frequency spectrum that the lines shown in 2 are broadband signal to be transmitted, 3The lines that show are the broadband frequency response that multiple narrow emission devices are realized, because the lines region shown in 3 is greater than 2Shown lines region, makes the frequency of at least two narrow emission devices that the emitter of broadband signal comprisesEffective bandwidth region after spectrum multiplies each other is greater than the ghz area of broadband signal to be transmitted, thereby can realize broadbandThe transmitting of signal.
When concrete enforcement, at least two narrow emission devices that the emitter of broadband signal is comprisedEffective bandwidth region after 11 frequency spectrum multiplies each other is greater than the ghz area of broadband signal to be transmitted, these at least twoFrequency response centre frequency and the frequency response bandwidth of narrow emission device 11 meet following relation:
f11-Δf11/2≤f10-Δf10/2；
f1i-f1i-1=Δf1i/2+Δf1i-1/2；
f1m-Δf1m/2≥f10+Δf10/2；
Wherein, f11For the frequency response centre frequency of first narrow emission device 11, Δ f11For sending out by first arrowbandThe frequency response bandwidth of emitter part 11, f10For the frequency response centre frequency of broadband signal to be transmitted, Δ f10For to be transmitted wideThe frequency response bandwidth of band signal, f1iBe the frequency response centre frequency of i narrow emission device 11, Δ f1iBe iThe frequency response bandwidth of individual narrow emission device 11, f1mBe the frequency response centre frequency of m narrow emission device 11,Δf1mBe the frequency response bandwidth of m narrow emission device 11, it is narrow that the emitter that m is broadband signal comprisesThe number of tape transmitter part 11, i is positive integer, and 1 < i < m.
For the ease of understanding, comprise three narrow emission devices with the emitter of the broadband signal shown in Fig. 3Part is example, and the process of the emitter transmitting broadband signal of the broadband signal that the present embodiment is provided is given an exampleExplanation. As shown in Figure 3, broadband signal to be transmitted is X (w), the frequency response of the frequency spectrum from X (w): X (w)Centre frequency f10=24kHz, frequency response bandwidth deltaf f10=6kHz; In addition, by three narrow emission shown in Fig. 3Device H1(W)、H2And H (W)3(W) frequency spectrum is known: H1(W) frequency response centre frequency f11=22kHz, frequentlyRing bandwidth deltaf f11=2kHz；H2(w) frequency response centre frequency f12=24kHz, frequency response bandwidth deltaf f12=2kHz；H3(w)Frequency response centre frequency f13=26kHz, frequency response bandwidth deltaf f13=2kHz. Due to H1(W)、H2And H (W)3(W)Frequency response centre frequency and frequency response bandwidth meet following relation:
f11-Δf11/2≤f10-Δf10/2；
f12-f11=Δf12/2+Δf11/2；
f13-f12=Δf13/2+Δf12/2；
f13-Δf13/2≥f10+Δf10/2。
Therefore, H1(W)、H2And H (W)3(W) the effective bandwidth region after frequency spectrum multiplies each other is greater than to be transmitted wideThe ghz area of band signal X (w), passes through H1(W)、H2And H (W)3(W) can launch X (w). Send outThe frequency spectrum of the broadband signal after penetrating can be as Y(W in Fig. 3) frequency spectrum as shown in, and as can be seen from Figure 3,Y(W) frequency spectrum and X (W) frequency spectrum is basically identical.
The emitter of the broadband signal that the present embodiment provides, by the effective bandwidth district after utilizing frequency spectrum to multiply each otherTerritory is greater than at least two transmitting narrowband devices of the ghz area of broadband signal to be transmitted and launches broadband to be transmitted letterNumber, the transmitting that goes for any broadband signal is transmitted, and because the cost of narrowband device is lower, therebyCan reduce the cost of broadband signal transmission; In addition, due to narrow emission device can be two or two withOn any amount, thereby there is higher flexibility.
Embodiment bis-
The present embodiment provides a kind of receiving system of broadband signal, referring to Fig. 4, and the reception dress of this broadband signalPut and comprise at least two narrow-band reception devices 22 that connect successively, for receiving broadband signal to be transmitted;
Wherein, the effective bandwidth region of the frequency spectrum of these at least two narrow-band reception devices 22 after multiplying each other is greater than to be passedThe ghz area of defeated broadband signal.
When concrete enforcement, at least two narrow-band reception devices 22 that the receiving system of broadband signal is comprisedThe effective bandwidth region of frequency spectrum after multiplying each other be greater than the ghz area of broadband signal to be transmitted, these at least two are narrowFrequency response centre frequency and frequency response bandwidth with receiving device 22 meet following relation:
f21-Δf21/2≤f20-Δf20/2；
f2j-f2j-1=Δf2j/2+Δf2j-1/2；
f2n+Δf2n/2≥f20+Δf20/2；
Wherein, f21For the frequency response centre frequency of first narrow-band reception device 22, Δ f21For first arrowband connectsReceive the frequency response bandwidth of device 22, f20For the frequency response centre frequency of broadband signal to be transmitted, Δ f20For to be transmitted wideThe frequency response bandwidth of band signal, f2jBe the frequency response centre frequency of j narrow-band reception device 22, Δ f2jBe jThe frequency response bandwidth of individual narrow-band reception device 22, f2nBe the frequency response centre frequency of n narrow-band reception device 22,Δf2nBe the frequency response bandwidth of n narrow-band reception device 22, it is narrow that the receiving system that n is broadband signal comprisesWith the number of receiving device 22, j is positive integer, and 1 < j < n.
For the ease of understanding, comprise four narrow-band reception devices with the receiving system of the broadband signal shown in Fig. 5Part is example, and the process of the receiving system receiving wide-band signal of the broadband signal that the present embodiment is provided is given an exampleExplanation. As shown in Figure 5, broadband signal to be transmitted is X (w), the frequency response of the frequency spectrum from X (w): X (w)Centre frequency f30=24kHz, frequency response bandwidth deltaf f30=8kHz. In addition H as shown in Figure 5,1(W)、H2(W)、H3And H (W)4(W) frequency spectrum is known: H1(W) frequency response centre frequency f31=21kHz, frequency response bandwidthΔf31=2kHz；H2(w) frequency response centre frequency f32=23kHz, frequency response bandwidth deltaf f32=2kHz；H3(w) frequencyRing centre frequency f33=25kHz, frequency response bandwidth deltaf f33=2kHz；H4(w) frequency response centre frequency f34=27kHz，Frequency response bandwidth deltaf f34=2kHz. Due to H1(W)、H2(W)、H3And H (W)4(W) frequency response centre frequency withFrequency response bandwidth meets following relation:
f31-Δf31/2≤f30-Δf30/2；
f32-f31=Δf32/2+Δf31/2；
f33-f32=Δf33/2+Δf32/2；
f34-f33=Δf34/2+Δf33/2；
f34+Δf34/2≥f30+Δf30/2。
Therefore, H1(W)、H2(W)、H3And H (W)4(W) the effective bandwidth region after frequency spectrum multiplies each other is greater thanThe ghz area of X (W), thereby can pass through H1(W)、H2(W)、H3And H (W)4(W) receive to be transmitted wideBand signal X (W). The frequency spectrum of the broadband signal receiving is as Y(W in Fig. 5) frequency spectrum as shown in, receiveBroadband signal Y(W) frequency spectrum and the frequency spectrum of X (W) basically identical.
The receiving system of the broadband signal that the present embodiment provides, by the effective bandwidth district after utilizing frequency spectrum to multiply each otherAt least two reception narrowband devices that territory is greater than the ghz area of broadband signal to be transmitted receive broadband to be transmitted letterNumber, go for the reception of any broadband signal, and because the cost of narrowband device is lower, thereby canReduce the cost of broadband signal transmission; In addition, because narrow-band reception device can be two or moreAny amount, thereby there is higher flexibility.
Embodiment tri-
The present embodiment provides a kind of transmission system of broadband signal, and as shown in Figure 6, this system comprises broadbandThe emitter 61 of signal and the receiving system 62 of broadband signal;
The emitter 61 of broadband signal comprises at least two narrow emission devices 611 that connect successively, forLaunch broadband signal to be transmitted, the receiving system 62 of broadband signal is for the emitter 61 of receiving wide-band signalThe broadband signal of transmitting;
Wherein, the effective bandwidth region of the frequency spectrum of at least two narrow emission devices 611 after multiplying each other is greater than to be passedThe ghz area of defeated broadband signal.
The emitter 61 of the broadband signal that preferably, the present embodiment provides can provide with above-described embodiment oneStructure and the emission principle of the emitter of broadband signal are identical, specifically can be with reference to retouching in above-described embodiment oneState. For at least two narrow emission that the emitter 61 of the broadband signal that the present embodiment provides is comprisedEffective bandwidth region after the frequency spectrum of device 611 multiplies each other is greater than the ghz area of broadband signal to be transmitted, and this extremelyFrequency response centre frequency and the frequency response bandwidth of few two narrow emission devices 611 meet following relation:
f11-vf11/2≤f10-Δf10/2；
f1i-f1i-1=Δf1i/2+Δf1i-1/2；
f1m-Δf1m/2≥f10+Δf10/2；
Wherein, f11For the frequency response centre frequency of first narrow emission device 611, Δ f11For sending out by first arrowbandThe frequency response bandwidth of emitter part 611, f10For the frequency response centre frequency of broadband signal to be transmitted, Δ f10For to be transmittedThe frequency response bandwidth of broadband signal, f1iBe the frequency response centre frequency of i narrow emission device 611, Δ f1iBeThe frequency response bandwidth of i narrow emission device 611, f1mIt is the frequency response center of m narrow emission device 611Frequency, Δ f1mBe the frequency response bandwidth of m narrow emission device 611, the emitter that m is broadband signalThe number of the 61 narrow emission devices 611 that comprise, i is positive integer, and 1 < i < m.
Further, as shown in Figure 7, the receiving system 62 of broadband signal comprises at least two that connect successivelyNarrow-band reception device 621;
Wherein, the effective bandwidth region of the frequency spectrum of at least two narrow-band reception devices 621 after multiplying each other is greater than broadbandThe ghz area of the broadband signal that the emitter 61 of signal is launched.
The structure of the receiving system 62 of the broadband signal that preferably, the present embodiment provides and receiving wide-band signalPrinciple, specifically can be referring to above-described embodiment two with the receiving system of the broadband signal providing in above-described embodiment twoContent. In order to make the frequency of at least two narrow-band reception devices 621 that the receiving system 62 of broadband signal comprisesThe effective bandwidth region of spectrum after multiplying each other is greater than the frequency range district of the broadband signal that the emitter 61 of broadband signal launchesTerritory, frequency response centre frequency and the frequency response bandwidth of these at least two narrow-band reception devices 621 meet following relation:
f31-Δf31/2≤f30-Δf30/2；
f3p-f3p-1=Δf3p/2+Δf3p-1/2；
f3q+Δf3q/2≥f30+Δf30/2；
Wherein, f31For the frequency response centre frequency of first narrow-band reception device 621, Δ f31For first arrowbandThe frequency response bandwidth of receiving device 621, f30The frequency response of the broadband signal of launching for the emitter 61 of broadband signalCentre frequency, Δ f30The frequency response bandwidth of the broadband signal of launching for the emitter 61 of broadband signal, f3pBeThe frequency response centre frequency of p narrow-band reception device 621, Δ f3pIt is the frequency response of p narrow-band reception device 621Bandwidth, f3qBe the frequency response centre frequency of q narrow-band reception device 621, Δ f3qBe q narrow-band receptionThe frequency response bandwidth of device 621, the number of the narrow-band reception device that the receiving system 62 that q is broadband signal comprises,P is positive integer, and 1 < p < q.
It should be noted that, except the narrow-band reception device that adopts the receiving system 62 of above-mentioned broadband signal to compriseThe side of the broadband signal that the narrow emission device 611 that the emitter 61 of 621 receiving wide-band signals comprises is launchedOutside formula, can also directly adopt the broadband reception device that meets broadband condition to launch narrow emission device 611Broadband signal receive, the present embodiment does not limit the concrete device of receiving wide-band signal. When adoptingWhile receiving with above-mentioned narrow-band reception device 621 broadband signal that narrow emission device 611 launches, its mode withIn above-described embodiment two, the mode of the receiving system receiving wide-band signal of broadband signal is identical, specifically also can be referring toThe content of above-described embodiment two repeats no more herein.
In addition, in order to ensure the transmission quality of broadband signal, the system that the present embodiment provides is being sent out by arrowbandEmitter part is treated before transmission broadband signal launches, and also comprises that treating transmission broadband signal carries out D/AThe process that (Digital/Analog, digital-to-analog) conversion, filtering and power amplifier etc. are processed, and passing through arrowbandAfter ballistic device transmitting broadband signal, also can carry out filtering, amplification and A/D to the broadband signal after transmittingThe processing such as (Analog/Digital, analog/digital) conversion, therefore, this system also comprises D/A(Digital/Analog, digital-to-analog) conversion, A/D(Analog/Digital, analog/digital), filteringWith devices such as power amplifiers. In addition, the quantity of the narrow emission device in the present embodiment and the number of narrow-band reception deviceAmount can be identical, also can be different, and the present embodiment is not done concrete restriction to this.
The system that the present embodiment provides, is greater than to be transmitted wide by the effective bandwidth region after utilizing frequency spectrum to multiply each otherAt least two narrowband devices of the ghz area of band signal transmit broadband signal to be transmitted, go for anyThe transmission of broadband signal, and because the cost of narrowband device is lower, thereby can reduce broadband signal transmissionCost; In addition, because narrowband device can be two or more any amount, thereby have higherFlexibility.
Embodiment tetra-
The present embodiment provides a kind of transmission system of broadband signal, and referring to Fig. 8, this system comprises broadband signalEmitter 81 and the receiving system 82 of broadband signal;
The receiving system 82 of broadband signal comprises at least two narrow-band reception devices 821 that connect successively, forReceive broadband signal to be transmitted; The emitter 81 of broadband signal is for launching this broadband signal to be transmitted;
Wherein, the effective bandwidth region of the frequency spectrum of at least two narrow-band reception devices 821 after multiplying each other is greater than to be passedThe ghz area of defeated broadband signal.
The structure of receiving system 82 and the principle of receiving wide-band signal of the broadband signal that the present embodiment provides are the sameState the receiving system of the broadband signal that embodiment bis-provides, specifically can be referring to the content of above-described embodiment two. ForEffective bandwidth region after the frequency spectrum of at least two narrow-band reception devices 821 is multiplied each other be greater than broadband to be transmittedThe ghz area of signal, the frequency response centre frequency of these at least two narrow-band reception devices 821 and frequency response bandwidth are fullThe following relation of foot:
f21-Δf21/2≤f20-Δf20/2；
f2j-f2j-1=Δf2j/2+Δf2j-1/2；
f2n+Δf2n/2≥f20+Δf20/2；
Wherein, f21For the frequency response centre frequency of first narrow-band reception device 821, Δ f21For first arrowbandThe frequency response bandwidth of receiving device 821, f20For the frequency response centre frequency of broadband signal to be transmitted, Δ f20For to be passedThe frequency response bandwidth of defeated broadband signal, f2jBe the frequency response centre frequency of j narrow-band reception device 821, Δ f2jForThe frequency response bandwidth of j narrow-band reception device 821, f2nIt is the frequency response center of n narrow-band reception device 821Frequency, Δ f2nBe the frequency response bandwidth of n narrow-band reception device 821, the receiving system 82 that n is broadband signalThe number of the narrow-band reception device 821 comprising, j is positive integer, and 1 < j < n.
Further, referring to Fig. 9, the emitter 81 of this broadband signal comprises at least two that connect successivelyNarrow emission device 811;
Wherein, the effective bandwidth region of the frequency spectrum of at least two narrow emission devices 811 after multiplying each other is greater than to be passedThe ghz area of defeated broadband signal.
The structure of the emitter 81 of the broadband signal that preferably, the present embodiment provides and transmitting broadband signalThe emitter of the broadband signal that principle provides with above-described embodiment one, specifically can be referring to above-described embodiment oneContent. For being greater than, the effective bandwidth region after the frequency spectrum of at least two narrow emission devices 811 is multiplied each other treatsThe ghz area of transmission broadband signal, the frequency response centre frequency of these at least two narrow emission devices 811 is with frequentlyRing bandwidth and meet following relation:
f41-Δf41/2≤f40-Δf40/2；
f4h-f4h-1=Δf4h/2+Δf4h-1/2；
f4k-Δf4k/2≥f40+Δf40/2；
Wherein, f41For the frequency response centre frequency of first narrow emission device 811, Δ f41For first arrowbandThe frequency response bandwidth of ballistic device 811, f40For the frequency response centre frequency of broadband signal to be transmitted, Δ f40For to be passedThe frequency response bandwidth of defeated broadband signal, f4hBe the frequency response centre frequency of h narrow emission device 811, Δ f4hBe the frequency response bandwidth of h narrow emission device 811, f4kIt is the frequency response of k narrow emission device 811Centre frequency, Δ f4kBe the frequency response bandwidth of k narrow emission device 811, the transmitting dress that k is broadband signalPut the number of the 81 narrow emission devices 811 that comprise, h is positive integer, and 1 < h < k.
It should be noted that, except the narrow emission device that adopts the emitter 81 of above-mentioned broadband signal to compriseOutside 811 transmitting broadband signals, can also directly adopt the broadband device transmitting broadband signal that meets broadband condition,The present embodiment does not limit the concrete device of transmitting broadband signal. When adopting above-mentioned narrow emission device 811When transmitting broadband signal, the mode of narrow emission device transmitting broadband signal in its mode and above-described embodiment oneIdentical, specifically also can, referring to the description content of above-described embodiment one, repeat no more herein. In addition, in order to protectThe transmission quality of card broadband signal, the system that the present embodiment provides is passing by the 4th narrowband device of selectingBefore defeated broadband signal to be transmitted, also comprise that treating transmission broadband signal carries out D/A(Digital/Analog,Digital-to-analog) process processed such as conversion, filtering and power amplifier, and by narrow emission device transmitting broadbandAfter signal, the broadband signal that also can receive narrow-band reception device is carried out filtering, amplification and A/D(Analog/ Digital, analog/digital) processing such as conversion grade, therefore, this system also comprises D/A(Digital/Analog,Digital-to-analog) conversion, A/D(Analog/Digital, analog/digital), the device such as filtering and power amplifier. SeparatelyOutward, the quantity of the narrow emission device in the present embodiment can be identical with the quantity of narrow-band reception device, also canWith difference, the present embodiment is not done concrete restriction to this.
The system that the present embodiment provides, is greater than to be transmitted wide by the effective bandwidth region after utilizing frequency spectrum to multiply each otherAt least two narrowband devices of the ghz area of band signal transmit broadband signal to be transmitted, go for anyThe transmission of broadband signal, and because the cost of narrowband device is lower, thereby can reduce broadband signal transmissionCost; In addition, because narrowband device can be two or more any amount, thereby have higherFlexibility.
Embodiment five
The present embodiment provides a kind of transmission system of broadband signal, and referring to Figure 10, this system comprises at least twoIndividual narrowband device 1001, the effective bandwidth region after the frequency spectrum of these at least two narrowband devices 1001 multiplies each other is greater thanThe ghz area of broadband signal to be transmitted;
Wherein, at least one narrowband device 1001 at least two narrowband devices 1001 is to be passed for launchingDefeated broadband signal, remaining narrowband device 1001 is for receiving wide that at least one narrowband device 1001 launchesBand signal.
Preferably, in order to make the effective bandwidth region after the frequency spectrum of the narrowband device 1001 that system comprises multiplies each other largeIn the ghz area of broadband signal to be transmitted, the frequency response centre frequency of the narrowband device 1001 that system comprises is with frequentlyRing bandwidth and meet following relation:
f51-Δf51/2≤f50-Δf50/2；
f5x-f5x-1=Δf5x/2+Δf5x-1/2；
f5y+Δf5y/2≥f50+Δf50/2；
Wherein, f51For the frequency response centre frequency of first narrowband device 1001, Δ f51For first narrowband device1001 frequency response bandwidth, f50For the frequency response centre frequency of broadband signal to be transmitted, Δ f50For broadband to be transmitted letterNumber frequency response bandwidth, f5xBe the frequency response centre frequency of x narrowband device 1001, Δ f5xBe x arrowbandThe frequency response bandwidth of device 1001, f5yBe the frequency response centre frequency of y narrowband device 1001, Δ f5yBe yThe frequency response bandwidth of individual narrowband device 1001, y is the number of the narrowband device 1001 that comprises of system, x is for just wholeNumber, and 1 < x < y.
For the ease of understanding, taking broadband signal to be transmitted as the X shown in Figure 11 (w), the transmission system of broadband signalThe number of the narrowband device that turnkey is drawn together is 2, and one of them narrowband device is used for launching broadband signal, and another is narrowBand device receiving wide-band signal is example, the frequency response center of the frequency spectrum from the X shown in Figure 11 (w): X (w)Frequency f50=24kHz, frequency response bandwidth deltaf f50=4kHz; In addition, in Figure 11, also show first narrowband deviceH1And second narrowband device H (W)2(W), and from the H shown in Figure 111And H (W)2(W) frequency spectrum is known:H1(W) frequency response centre frequency f51=23kHz, frequency response bandwidth deltaf f51=2kHz；H2(w) frequency response centre frequencyf52=25kHz, frequency response bandwidth deltaf f52=2kHz. Due to H1And H (W)2(W) frequency response centre frequency and frequency response bandWidely meet following relation:
f51-Δf51/2≤f50-Δf50/2；
f52-f51=Δf52/2+Δf51/2；
f52+Δf52/2≥f50+Δf50/2。
Therefore, H1And H (W)2(W) the effective bandwidth region after frequency spectrum multiplies each other is greater than broadband signal to be transmittedGhz area, thereby pass through H1(W) broadband signal X (w) is launched. And passing through a narrowband deviceAfter launching broadband signal to be transmitted, can receive previous narrowband device transmitting by remaining narrowband deviceBroadband signal. The frequency spectrum of the broadband signal receiving is as Y(W in Figure 11) frequency spectrum as shown in, Y(W)Frequency spectrum and X (W) frequency spectrum basically identical.
It should be noted that, in order to ensure the transmission quality of broadband signal, the system that the present embodiment provides is logicalCross before narrowband device transmits broadband signal to be transmitted, also comprise that treating transmission broadband signal carries out D/AThe process that (Digital/Analog, digital-to-analog) conversion, filtering and power amplifier etc. are processed, and passing through at leastAfter a narrowband device transmitting broadband signal, the broadband signal that also can receive residue narrowband device is carried outFiltering, amplification and A/D(Analog/Digital, analog/digital) processing such as conversion grade, therefore, this systemAlso comprise D/A(Digital/Analog, digital-to-analog) conversion, A/D(Analog/Digital, simulation/Numeral), the device such as filtering and power amplifier. In addition, the emitter of broadband signal in the system that the present embodiment providesThe quantity of the narrowband device that the receiving system of 1001 narrowband devices that comprise and broadband signal comprises can be identical,Also can be different, the present embodiment is not done concrete restriction to this.
The system that the present embodiment provides, is greater than to be transmitted wide by the effective bandwidth region after utilizing frequency spectrum to multiply each otherAt least two narrowband devices of the ghz area of band signal transmit broadband signal to be transmitted, go for anyThe transmission of broadband signal, and because the cost of narrowband device is lower, thereby can reduce broadband signal transmissionCost; In addition, because narrowband device can be two or more any amount, thereby have higherFlexibility.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment. This area is commonTechnical staff is appreciated that all or part of step that realizes above-described embodiment can complete by hardware, alsoCan carry out the hardware that instruction is relevant by program and complete, described program can be stored in a kind of computer-readableIn storage medium, the above-mentioned storage medium of mentioning can be read-only storage, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all of the present inventionWithin spirit and principle, any amendment of doing, be equal to replacement, improvement etc., all should be included in of the present inventionWithin protection domain.
Claims (9)
1. an emitter for broadband signal, is characterized in that, described emitter comprises successively and to connectAt least two narrow emission devices, for launching broadband signal to be transmitted;
Wherein, described in the effective bandwidth region of the frequency spectrum of described at least two narrow emission devices after multiplying each other is greater thanThe ghz area of broadband signal to be transmitted, and the frequency response centre frequency of described at least two narrow emission devices withFrequency response bandwidth meets following relation:
f11-△f11/2≤f10-△f10/2；
f1i-f1i-1＝△f1i/2+△f1i-1/2；
f1m-△f1m/2≥f10+△f10/2；
Wherein, described f11For the frequency response centre frequency of first narrow emission device, described △ f11For describedThe frequency response bandwidth of a narrow emission device, described f10For the frequency response centre frequency of described broadband signal to be transmitted,Described △ f10For the frequency response bandwidth of described broadband signal to be transmitted, described f1iIt is the frequency of i narrow emission deviceRing centre frequency, described △ f1iBe the frequency response bandwidth of i narrow emission device, described f1mBe that m is individual narrowThe frequency response centre frequency of tape transmitter part, described △ f1mBe the frequency response bandwidth of m narrow emission device, instituteThe number of stating m and be the narrow emission device that the emitter of described broadband signal comprises, described i is positive integer,And 1 < i < m.
2. a receiving system for broadband signal, is characterized in that, described receiving system comprises successively and to connectAt least two narrow-band reception devices, for receiving broadband signal to be transmitted;
Wherein, described in the effective bandwidth region of the frequency spectrum of described at least two narrow-band reception devices after multiplying each other is greater thanThe ghz area of broadband signal to be transmitted, and the frequency response centre frequency of described at least two narrow-band reception devices withFrequency response bandwidth meets following relation:
f21-△f21/2≤f20-△f20/2；
f2j-f2j-1＝△f2j/2+△f2j-1/2；
f2n+△f2n/2≥f20+△f20/2；
Wherein, described f21For the frequency response centre frequency of first narrow-band reception device, described △ f21For describedThe frequency response bandwidth of a narrow-band reception device, described f20For the frequency response centre frequency of broadband signal to be transmitted, instituteState △ f20For the frequency response bandwidth of described broadband signal to be transmitted, described f2jIt is the frequency response of j narrow-band reception deviceCentre frequency, described △ f2jFor the frequency response bandwidth of described j narrow-band reception device, described f2nBe that n is individual narrowWith the frequency response centre frequency of receiving device, described △ f2nBe the frequency response bandwidth of n narrow-band reception device, described inN is the number of the narrow-band reception device that comprises of the receiving system of described broadband signal, and described j is positive integer, and1<j<n。
3. a transmission system for broadband signal, is characterized in that, described system comprises the transmitting of broadband signalThe receiving system of device and broadband signal;
The emitter of described broadband signal comprises at least two narrow emission devices that connect successively, for sending outPenetrate broadband signal to be transmitted, the receiving system of described broadband signal is for receiving the transmitting dress of described broadband signalPut the broadband signal of transmitting;
Wherein, described in the effective bandwidth region of the frequency spectrum of described at least two narrow emission devices after multiplying each other is greater thanThe ghz area of broadband signal to be transmitted;
Frequency response centre frequency and the frequency response bandwidth of described at least two narrow emission devices meet following relation:
f11-△f11/2≤f10-△f10/2；
f1i-f1i-1＝△f1i/2+△f1i-1/2；
f1m-△f1m/2≥f10+△f10/2；
Wherein, described f11For the frequency response centre frequency of first narrow emission device, described △ f11For describedThe frequency response bandwidth of a narrow emission device, described f10For the frequency response centre frequency of described broadband signal to be transmitted,Described △ f10For the frequency response bandwidth of described broadband signal to be transmitted, described f1iIt is the frequency of i narrow emission deviceRing centre frequency, described △ f1iBe the frequency response bandwidth of i narrow emission device, described f1mBe that m is individual narrowThe frequency response centre frequency of tape transmitter part, described △ f1mBe the frequency response bandwidth of m narrow emission device, instituteThe number of stating m and be the narrow emission device that the emitter of described broadband signal comprises, described i is positive integer,And 1 < i < m.
4. system according to claim 3, is characterized in that, the receiving system bag of described broadband signalDraw together at least two narrow-band reception devices that connect successively;
Wherein, described in the effective bandwidth region of the frequency spectrum of described at least two narrow-band reception devices after multiplying each other is greater thanThe ghz area of the broadband signal of the emitter transmitting of broadband signal.
5. system according to claim 4, is characterized in that, described at least two narrow-band reception devicesFrequency response centre frequency and frequency response bandwidth meet following relation:
f31-△f31/2≤f30-△f30/2；
f3p-f3p-1＝△f3p/2+△f3p-1/2；
f3q+△f3q/2≥f30+△f30/2；
Wherein, described f31For the frequency response centre frequency of first narrow-band reception device, described △ f31For describedThe frequency response bandwidth of a narrow-band reception device, described f30For the broadband of the emitter transmitting of described broadband signalThe frequency response centre frequency of signal, described △ f30For the frequency of the broadband signal of the emitter transmitting of described broadband signalRing bandwidth, described f3pBe the frequency response centre frequency of p narrow-band reception device, described △ f3pFor described pThe frequency response bandwidth of individual narrow-band reception device, described f3qBe the frequency response centre frequency of q narrow-band reception device,Described △ f3qBe the frequency response bandwidth of q narrow-band reception device, the receiving system that described q is described broadband signalThe number of the narrow-band reception device comprising, described p is positive integer, and 1 < p < q.
6. a transmission system for broadband signal, is characterized in that, described system comprises the transmitting of broadband signalThe receiving system of device and broadband signal;
The receiving system of described broadband signal comprises at least two narrow-band reception devices that connect successively, for connecingReceive broadband signal to be transmitted; The emitter of described broadband signal is used for launching described broadband signal to be transmitted;
Wherein, described in the effective bandwidth region of the frequency spectrum of described at least two narrow-band reception devices after multiplying each other is greater thanThe ghz area of broadband signal to be transmitted, and the frequency response centre frequency of described at least two narrow-band reception devices withFrequency response bandwidth meets following relation:
f21-△f21/2≤f20-△f20/2；
f2j-f2j-1＝△f2j/2+△f2j-1/2；
f2n+△f2n/2≥f20+△f20/2；
Wherein, described f21For the frequency response centre frequency of first narrow-band reception device, described △ f21For describedThe frequency response bandwidth of a narrow-band reception device, described f20For the frequency response centre frequency of broadband signal to be transmitted, instituteState △ f20For the frequency response bandwidth of described broadband signal to be transmitted, described f2jIt is the frequency response of j narrow-band reception deviceCentre frequency, described △ f2jFor the frequency response bandwidth of described j narrow-band reception device, described f2nBe that n is individual narrowWith the frequency response centre frequency of receiving device, described △ f2nBe the frequency response bandwidth of n narrow-band reception device, described inN is the number of the narrow-band reception device that comprises of the receiving system of described broadband signal, and described j is positive integer, and1<j<n。
7. system according to claim 6, is characterized in that, the emitter bag of described broadband signalDraw together at least two narrow emission devices that connect successively;
Wherein, described in the effective bandwidth region of the frequency spectrum of described at least two narrow emission devices after multiplying each other is greater thanThe ghz area of broadband signal to be transmitted.
8. system according to claim 7, is characterized in that, described at least two narrow emission devicesFrequency response centre frequency and frequency response bandwidth meet following relation:
f41-△f41/2≤f40-△f40/2；
f4h-f4h-1＝△f4h/2+△f4h-1/2；
f4k-△f4k/2≥f40+△f40/2；
Wherein, described f41For the frequency response centre frequency of first narrow emission device, described △ f41For describedThe frequency response bandwidth of a narrow emission device, described f40For the frequency response centre frequency of described broadband signal to be transmitted,Described △ f40For the frequency response bandwidth of described broadband signal to be transmitted, described f4hBe h narrow emission deviceFrequency response centre frequency, described △ f4hBe the frequency response bandwidth of h narrow emission device, described f4kIt is kThe frequency response centre frequency of narrow emission device, described △ f4kBe the frequency response bandwidth of k narrow emission device, instituteThe number of stating k and be the narrow emission device that the emitter of described broadband signal comprises, described h is positive integer,And 1 < h < k.
9. a transmission system for broadband signal, is characterized in that, described system comprises for transmission broadband to be believedNumber at least two narrowband devices, the effective bandwidth region after the frequency spectrum of described at least two narrowband devices multiplies each otherBe greater than the ghz area of broadband signal to be transmitted;
Wherein, at least one narrowband device in described at least two narrowband devices is used for launching described to be transmittedBroadband signal, remaining narrowband device is for receiving the broadband signal of described at least one narrowband device transmitting;
Frequency response centre frequency and the frequency response bandwidth of described at least two narrowband devices meet following relation:
f51-△f51/2≤f50-△f50/2；
f5x-f5x-1＝△f5x/2+△f5x-1/2；
f5y+△f5y/2≥f50+△f50/2；
Wherein, described f51For the frequency response centre frequency of first narrowband device, described △ f51For described firstThe frequency response bandwidth of narrowband device, described f50For the frequency response centre frequency of described broadband signal to be transmitted, described △ f50For the frequency response bandwidth of described broadband signal to be transmitted, described f5xBe the frequency response centre frequency of x narrowband device,Described △ f5xFor the frequency response bandwidth of described x narrowband device, described f5yIt is the frequency response of y narrowband deviceCentre frequency, described △ f5yFor the frequency response bandwidth of described y narrowband device, described y is that described system comprisesThe number of narrowband device, described x is positive integer, and 1 < x < y.
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